TABLE OF CONTENTS - IMEC Electro Mechanical …demo.imecmep.com/wp-content/themes/WpEngineering/pdf/AjaxSeries... · Ajax Boiler, Inc. designs and manufactures a comprehensive line

Hot Water Boilers (125 psig / 250 ºF) Atmospheric 2 20ppm Low NOx Premix 6 12ppm Low NOx Premix 10 Forced Draft & 30ppm Low NOx Forced Draft 14

High Temperature Water Boilers (150 psig / 365 ºF) Atmospheric 18 20ppm Low NOx Premix 22 12ppm Low NOx Premix 26 Forced Draft 30

Low Pressure Steam Boilers (15 psig) Atmospheric 34 20ppm Low NOx Premix 38 12ppm Low NOx Premix 42 Forced Draft 46

High Pressure Steam Boilers (150 psig) Atmospheric 50 20ppm Low NOx Premix 54 12ppm Low NOx Premix 58 Forced Draft 62

Unfi red Steam Boilers 66

Heat Exchangers & Tube Bundles 72

Tanks 76 Condensate Return & Boiler Feed Systems Flash Tanks Expansion Tanks Blow Down Tanks

High Effi ciency Condensing Boilers 80

Warranties & Legal Disclaimers 84

Series

Series

TABLE OF CONTENTS

Ajax Boiler, Inc. designs and manufactures a comprehensive line of boiler and commercial water

heating products. With over eight decades of experience, the company offers high quality, heavy

duty products with reputations for reliability, serviceability, and cost effective operation.

The administrative offi ces and manufacturing facility of Ajax Boiler, Inc. are located in Santa Ana,

California. All products are designed and engineered by our in-house engineering department

whose expertise combine the disciplines of combustion and heat transfer technology, pressure

vessel design, control and systems engineering, and computer aided design. Our on-site R&D

facility has the capacity to test fi re boilers up to 21,000,000 BTU/hour under load conditions

with calibrated test equipment that meet all UL certifi cation testing requirements. Product lines

are distributed by more than 70 sales representatives located throughout the United States and

Canada.

Ajax Series (Space Heating and Process Steam & Hot Water) • Inclined water tube boilers• High & low pressure steam boilers• Unfi red steam boilers• Heat exchangers• Tanks (Flash, Expansion, Blow Down, and Condensate Return Feedwater)

Ace Series (Plumbing and Domestic Hot Water) • Mini-Pack semi-instantaneous, indirect water heaters• Gas-fi red conical copper fi n water heaters• Indirect storage water heaters• Tanks (Storage)

Atlas Series• High-effi ciency, condensing boilers and water heaters

One Company... Three Great Brands

Factory Assembly Line - Santa Ana, CaliforniaAce Series Water Heaters (Model B15)

HOT WATER BOILERSInclined Water TubeAtmospheric

Features• Capacities up to 21,000 MBTU/hr• ASME Boiler and Pressure Vessel Code Section IV stamped for 125 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• Models 150 to 14650 are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers or draft hoods

Standard EquipmentBoiler• Operating temperature controls 130 to 210ºF• High temperature 2000 ºF cast refractory, 2 to 3 1/2 in. thick• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 3/8 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face headplate gaskets• Front headplate hand holes on models 2100 to 21000• Boiler legs with bolt-down lugs• I-beam skids on boiler models 3770 to 21000

Combustion System• Ajax cast iron ported burner heads and orifi ces for use with natural gas• Safety shut-off valve1

• Main gas valve1

• Pilot gas valve1

• Auxiliary gas valve1

• Gas pressure regulator1

• Electronic ignition• Manual gas shut-off valves and leakage test cock(s) 1May be combined in one valve body.

Controls & Trim• Standard controls are CSD-1 compliant• Models 150 to 2500 use a 24 VAC / 60 Hz electronic primary safety control system with an intermittent pilot and on-off fi ring• Models 3000 to 9500 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and high-low fi ring• Models 10500 to 21000 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and three stage fi ring• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• High and low gas pressure switches on models 3000 to 21000• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler

Model WRNThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial buildings with space heating and process hot water. Inclined tubes provide uniform heat transfer, resulting in high fuel economy and long boiler life.

2

Photo may vary from actual model

• Temperature-pressure gauge and 125 psig ASME approved pressure relief valve

Optional EquipmentBoiler• Low temperature manual reset high limit control• ASME approved pressure relief valves are available with 30, 45, 50, 75, 100, and 125 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain and headplate couplings• I-beam skids on models 150 to 3350

Combustion System• Propane orifi ces and gas train

Controls• 120 VAC / 60 Hz electronic primary safety control system with microprocessor based fl ame safeguard control and interrupted pilot on models 150 to 2500• High-low fi ring on models 150 to 2500• Modulating fi ring on models 150 to 9500• Assured low-fi re start, holds unit on low fi re until fl ame proving period is complete• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems and gas train• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers

Copper Tubes• 13 gauge SB-75 copper tubes are recommended for hot water and applications where raw make-up water is anticipated. Copper tube boilers are supplied with anode rods (minimum of two in each header)

Heat Exchangers• Heat exchangers may be mounted sidearm style on WR model boilers for indirect heating of water for shower, laundry, dishwashing, swimming pool, snow removal and many other applications• Exchangers are available in capacities up to and including full capacity of the boiler with 150 psig working pressure design

Outdoor Models• Outdoor models 150 to 5250 are available with E.T.L. listing• Outdoor models 6300 to 21000 are available without E.T.L. listing

AtmosphericBurner Assembly


3

Series

Hot Water Boilers: Atmospheric - Indoor

MODELSALL FIRING MODES NATURAL GAS1 PROPANE GAS

WRN_150 to 2500 UL CSD-1/FM, IRI 7 to 14 in. W.C. 11 to 14 in. W.C.WRN_3000 to 4200 UL CSD-1/FM 8 to 14 in. W.C. 12 to 14 in. W.C.WRN_3000 to 4200 IRI 8 to 28 in. W.C. 12 to 28 in. W.C.WRN_5250 to 9500 UL CSD-1/FM, IRI 10 to 28 in. W.C. 16 to 28 in. W.C.WRN_10500 to 21000 UL CSD-1/FM, IRI 18 to 28 in. W.C. 24 to 28 in. W.C.

1 Additional “Lock-up” regulator must be furnished if maximum supply pressure exceeds the maximum value.

MODEL1INPUT

(BTU/HR)2OUTPUT(BTU/HR)3 B.H.P.4

HEAT EXCHANGER WATERVOLUME

(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)660ºF RISE

G.P.H.5100ºF RISE

G.P.H.5

WRN_150 150,000 121,500 3.6 249 150 13 21 900WRN_250 250,000 202,500 6.0 415 250 16 33 1,100WRN_350 350,000 283,500 8.5 581 350 19 45 1,300WRN_420 420,000 340,200 10.2 697 420 33 55 1,500WRN_525 525,000 425,250 13.0 871 525 36 67 1,600WRN_630 630,000 510,300 15.2 1,046 630 40 83 1,700WRN_735 735,000 595,350 18.0 1,220 735 44 97 1,900WRN_840 840,000 680,400 20.3 1,394 840 47 111 2,000WRN_940 940,000 761,400 23.0 1,560 940 63 121 2,500WRN_1050 1,050,000 850,500 25.4 1,743 1,050 66 135 2,600WRN_1250 1,250,000 1,012,500 30.2 2,075 1,250 73 161 2,900WRN_1500 1,500,000 1,215,000 36.3 2,490 1,500 81 192 3,200WRN_1750 1,750,000 1,417,500 42.4 2,905 1,750 87 215 3,400WRN_2100 2,100,000 1,701,000 50.8 3,486 2,100 121 270 4,200WRN_2500 2,500,000 2,025,000 60.5 4,150 2,500 135 325 4,600WRN_3000 3,000,000 2,430,000 72.6 4,979 3,000 149 381 5,100WRN_3350 3,350,000 2,713,500 81.1 5,560 3,350 163 436 5,500WRN_3770 3,770,000 3,053,700 91.2 6,257 3,771 230 458 7,100WRN_4200 4,200,000 3,402,000 101.6 6,971 4,201 243 507 7,500WRN_5250 5,250,000 4,252,500 127.0 8,714 5,251 277 640 8,600WRN_6300 6,300,000 5,103,000 152.4 10,457 6,301 309 765 9,700WRN_7350 7,350,000 5,953,500 177.8 12,200 7,351 344 905 10,800WRN_8400 8,400,000 6,804,000 203.3 13,942 8,401 478 1,049 10,000WRN_9500 9,500,000 7,695,000 229.9 15,768 9,501 515 1,197 10,600WRN_10500 10,500,000 8,505,000 254.1 17,428 10,501 545 1,312 11,200WRN_11500 11,500,000 9,315,000 278.3 19,088 11,502 580 1,449 11,700WRN_12600 12,600,000 10,206,000 304.9 20,914 12,602 612 1,575 12,300WRN_14650 14,650,000 11,866,500 354.5 24,316 14,652 826 1,768 15,600WRN_16750 16,750,000 13,567,500 405.3 27,802 16,752 889 2,015 16,600WRN_19000 19,000,000 15,390,000 459.8 31,536 19,003 960 2,292 17,900WRN_21000 21,000,000 17,010,000 508.1 34,856 21,003 1,019 2,523 18,900

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 81.0% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.

Specifi cations

Fuel Pressure Requirements

MODELS FIRING MODESWRN_150 to 2500 ON-OFF2, HIGH-LOW, MODULATIONWRN_3000 to 9500 HIGH-LOW, MODULATIONWRN_10500 to 21000 THREE STAGE

Available Firing Modes

Rain CapStandard on Outdoor Models

OptionalExpansion TankPhoto may vary from actual model

4

Electrical RequirementsMODELS AMPS.

(120 VAC / 60Hz / 1 Phase)WRN_150 to 2500 1WRN_3000 to 4200 4WRN_5250 to 9500 6.5WRN_10500 to 21000 8

2 Models 150 to 300 available in ON-OFF only.

A

F M F

TEMP. / PRESS. GAUGE

H

OPTIONALHEADPLATE

COVER

FRONT LOW WATER

CUT-OFF 12 in. GAS TRAIN CLEARANCE

REAR LOW WATER CUT-OFF WITH AIR ELIMINATOR

RELIEF VALVE

N

OutletSize D J

LTUBE

REMOVAL CLEARANCE

C

B

Gas Inlet Size K

InletSize D

G

FRONT VIEW RIGHT SIDE VIEW REAR VIEW

TOP VIEW

1 in. Drain

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket. 3 in. and smaller inlets are removable.3 Models 150 to 2500 use one vent, 3000 to 21000 use two vents. For indoor, atmospheric vents 18 in. or larger uses barometric dampers instead of draft hoods. For outdoor, use rain cap.4 Gas line size is for standard gas train and fi ring mode.CF - Consult factory for options and information, N/A - Not ApplicableSHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

H JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NDRAFT HOODCLEARANCE

NBAROMETRIC

DAMPER CLHEIGHT

RAIN CAPSIZE3

INDOORVENT DIA.3

OUTDOORVENT DIA.3

WRN_150 24 29 403/4 11/2 T 2 271/4 5 9 3 3/4 173/8 CL 13 N/A 14WRN_250 34 29 403/4 11/2 T 2 271/4 7 11 3 3/4 273/8 CL 13 N/A 17WRN_350 44 29 403/4 11/2 T 2 271/4 8 12 3 3/4 373/8 CL 13 N/A 181/2WRN_420 341/4 34 441/2 11/2 T 3 29 9 13 3 3/4 243/8 CL 17 N/A 20WRN_525 391/4 34 441/2 11/2 T 3 29 10 14 3 1 293/8 CL 17 N/A 211/2WRN_630 461/4 34 441/2 11/2 T 3 29 10 14 3 1 363/8 CL 17 N/A 211/2WRN_735 521/4 34 441/2 11/2 T 3 29 12 16 3 1 423/8 CL 20 N/A 24WRN_840 581/4 34 441/2 11/2 T 3 29 12 16 3 1 483/8 CL 20 N/A 24WRN_940 473/4 371/2 503/4 3 F 31/4 301/4 12 16 3 1 361/2 CL 20 N/A 24WRN_1050 513/4 371/2 503/4 3 F 31/4 301/4 14 18 3 1 401/2 CL 20 N/A 27WRN_1250 593/4 371/2 503/4 3 F 31/4 301/4 16 20 3 11/4 481/2 CL 20 N/A 291/2WRN_1500 683/4 371/2 503/4 3 F 31/4 301/4 16 20 3 11/4 571/2 CL 20 N/A 291/2WRN_1750 753/4 371/2 503/4 3 F 31/4 301/4 18 22 3 11/4 641/2 CL N/A 27 321/2WRN_2100 603/4 461/2 581/2 3 F 31/2 321/2 18 22 3 11/2 491/2 CL N/A 27 321/2WRN_2500 703/4 461/2 581/2 3 F 31/2 321/2 20 24 3 11/2 591/2 CL N/A 30 351/2WRN_3000 803/4 461/2 581/2 3 F 31/2 321/2 (2)16 (2)20 3 2 691/2 171/2 20 N/A 291/2WRN_3350 903/4 461/2 581/2 3 F 31/2 321/2 (2)16 (2)20 3 2 791/2 171/2 20 N/A 291/2WRN_3770 851/4 57 673/4 6 F 53/4 41 (2)18 (2)22 3 2 661/4 171/2 N/A 27 321/2WRN_4200 921/4 57 673/4 6 F 53/4 41 (2)18 (2)22 3 2 731/4 171/2 N/A 27 321/2WRN_5250 1111/4 57 673/4 6 F 53/4 41 (2)20 (2)24 3 21/2 921/4 171/2 N/A 30 351/2WRN_6300 1291/4 57 673/4 6 F 53/4 41 (2)24 (2)26 3 21/2 1101/4 40 N/A 33 38WRN_7350 1491/4 57 673/4 6 F 53/4 41 (2)24 (2)26 3 21/2 1301/4 42 N/A 33 38WRN_8400 1251/2 69 731/4 8 F 77/8 45 (2)24 (2)26 3 3 1003/4 53 N/A CF 38WRN_9500 1391/2 69 731/4 8 F 77/8 45 (2)24 (2)28 3 3 1143/4 53 N/A CF 41WRN_10500 1501/2 69 731/4 8 F 77/8 45 (2)26 (2)30 3 3 1253/4 53 N/A CF 44WRN_11500 1631/2 69 731/4 8 F 77/8 45 (2)26 (2)30 3 3 1383/4 53 N/A CF 44WRN_12600 1751/2 69 731/4 8 F 77/8 45 (2)28 (2)32 3 3 1503/4 53 N/A CF 461/2WRN_14650 146 85 80 10 F 77/8 45 (2)30 (2)34 3 4 1161/4 68 N/A CF 491/2WRN_16750 162 85 80 10 F 77/8 45 (2)34 (2)38 3 4 1321/4 80 N/A CF 55WRN_19000 180 85 80 10 F 77/8 45 (2)34 (2)38 3 4 1501/4 85 N/A CF 55WRN_21000 195 85 80 10 F 77/8 45 (2)36 (2)40 3 4 1651/4 92 N/A CF 58

Dimensions

A.S.M.E.

E.T.L. Listed

E.T.L. Canadian Listed

C

5

Series

HOT WATER BOILERSInclined Water TubeLow NOx 20ppmPremix

Features• 20 ppm NOx (at 3% O2) based on factory high fi re testing• Pre-certifi ed to SCAQMD rule 1146.2 (models 525 to 2100)• Capacities up to 2,000 MBTU/hr• ASME Boiler and Pressure Vessel Code Section IV stamped for 125 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF.• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers

Standard EquipmentBoiler• Operating temperature controls 130 to 210 ºF• High temperature 2000 ºF cast refractory, 2 to 3 in. thick• 18 gauge galvanized steel jacket with air wall and head plate covers for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 3/8 to 3/4 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face headplate gaskets• Front headplate hand holes on models 2100• Boiler legs with bolt-down lugs

Combustion System• Ajax low NOx forced draft premix burners with Ajax fuel injectors, and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulators1, safety shut-off valve1, main gas valve1, pilot gas valve1, and auxiliary gas valve1

• Electronic ignition• Manual gas shut off valves for each burner and leakage test cock(s)• Premix boilers receive a full factory fi re test1May be combined in one valve body.

Controls & Trim• Standard controls are CSD-1 compliant• Model 525 uses a 120 VAC / 60 Hz electronic primary safety control system with an interrupted pilot and on-off fi ring• Models 1050 to 2100 use a 120 VAC / 60 Hz electronic primary safety control systems with an interrupted pilot and on-off fi ring with low fi re start• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• Combustion air switch• Main power, main fl ame and fl ame fail indicators• Electronic microprocessor based fl ame safeguard control• UV scanner for fl ame detection

Model WRPGThe AJAX Series premix water boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989, and is committed to meeting all clean-air requirements for today and into the future.

6

• Proven low-fi re start (models 1050 to 2100), prevents unit from lighting off on high-fi re• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 125 psig ASME approved pressure relief valve

Optional EquipmentBoiler• Low temperature manual reset high limit control• ASME approved pressure relief valves are available with 30, 45, 50, 75, 100, and 125 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Burner plenum, gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain & headplate couplings• I-beam skids on models 525 to 2100• Indoor models is available with weather cover*• High and low gas pressure switch * Models are ETL certifi ed for indoor operation

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems and gas train• Industrial control package for process heating

• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers




20ppm Low NOx Premix BurnerPhoto and burner model may vary from actual model

7

Series

MODEL1INPUT



(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX. WEIGHT

(LBS.)660ºF RISE

G.P.H.5100ºF RISE

G.P.H.5

WRPG-525 500,000 410,000 12.2 820 494 36 67 1,600WRPG-1050 1,000,000 820,000 24.5 1,640 988 66 135 2,600WRPG-1500 1,500,000 1,230,000 36.7 2,460 1,482 81 192 3,200WRPG-2100 2,000,000 1,640,000 49.0 3,280 1,976 121 271 4,2001 Models shown are for natural gas only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper Is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 82% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.

Specifi cations

Hot Water Boilers: 20ppm Low NOx Premix

Tube Bundle Assemblywith Low NOx Premix BurnersPhoto may vary from actual model

In 1989, Ajax Boiler contracted with AGA Research Laboratory to evaluate advanced low NOx burner designs. Since that year Ajax Boiler has provided low NOx boilers in California, Texas, Nevada, Utah and Washington State in increasing numbers. During the last several years, Ajax Boiler has developed its advanced premix 12 and 20 ppm NOx burner designs specifi cally for low NOx Ajax Series boilers and Ace Series water heaters. These simple, yet effective, designs have proven to be reliable over many years of service.

8

20ppm Low NOx PremixRetro-Fit KitPhoto may vary from actual model

Burners, blower, new front door, barometric damper(s), gas train and operating controls only.

Installation will require welding mounting supports and brackets plus job piping, new front door, wiring and barometric damper(s) connections to be furnished by installer per job requirements.

Available on all 20 ppm Low NOx Premix Boilers.

A.S.M.E.

E.T.L. Listed


C

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

STANDARDVOLTAGE5

(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS.

WRPG-525 391/4 34 441/2 11/2 T 3 29 10 3 1 293/8 CL 14 120/1/60 1/3 7.2WRPG-1050 513/4 371/2 503/4 3 F 31/4 301/4 14 3 1 401/2 CL 21 120/1/60 1/2 9.8WRPG-1500 683/4 371/2 503/4 3 F 31/4 301/4 16 3 11/4 571/2 CL 24 120/1/60 3/4 13.8WRPG-2100 603/4 461/2 581/2 3 F 31/2 321/2 18 3 11/2 491/2 CL 27 120/1/60 1 16.0

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train and plenum assembly, inlet or control assemblies.2 T = Threaded; F = Flange. Flange connections extend approximately 3 in. from jacket. 3 in. and smaller inlets are removable.3 Sizes 525 to 2100 use one vent.4 Gas line size is for standard gas train and fi ring mode.5 Other voltages available, consult factory for options.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

Dimensions

MODELSALL FIRING MODES

NATURAL GAS1

ON-OFF WRPG-525 UL CSD-1/FM 8 to 14 in. W.C.ON-OFF WRPG-525 IRI 8 to 28 in. W.C.LHO, LHL WRPG-1050 to 2100 UL CSD-1/FM 9 to 14 in. W.C.LHO,LHL WRPG-1050 to 2100 IRI 9 to 28 in. W.C.



A.S.M.E.

E.T.L. Listed


C

FRONT VIEW

TOP VIEW

RIGHT SIDE VIEW REAR VIEW

LTUBE

REMOVAL CLEARANCE

C

BN J

OutletSize D

Gas Inlet Size K

G

InletSize D

24 in. GAS TRAIN CLEARANCE


RELIEF VALVE

F

H

M

A

F


OPTIONALHEADPLATE

COVER

FRONT LOW WATER

CUT-OFF

1 in. Drain

9

Series

HOT WATER BOILERSInclined Water TubeUltra Low NOx 12ppmPremix

Features• 12 ppm NOx (at 3% O2) based on factory high fi re testing• Capacities up to 7,000 MBTU/hr• ASME Boiler and Pressure Vessel Code Section IV stamped for 125 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF.• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers

Standard EquipmentBoiler• Operatung temperature controls 130 to 210 ºF• High temperature 2000 ºF cast refractory, 3 in. thick• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 3/8 to 3/4 in. thick.• 2 in. O.D. SA-178 grade-A steel tubes• Full face headplate gaskets• Front headplate hand holes on all models• Boiler legs with bolt-down lugs• I-beam skids on boiler models 4200 to 7350

Combustion System• Knit metal fiber combustion surface for optimal efficiency and durability• Fuel-air ratio valve for precise combustion control• Ajax fuel injectors and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulator1

• Safety shut-off valve1

• Main gas valve1




Controls & Trim• Standard controls are CSD-1 compliant• All models use a 120 VAC / 60 Hz electronic primary safety control system with an interrupted pilot and high-low fi ring with low fi re start• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• Combustion air switch and high and low gas pressure switches• Main power, main fl ame and fl ame fail indicators• UV scanner for fl ame detection

Model WRLGThe AJAX Series premix water boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989, and is committed to meeting all clean-air requirements for today and into the future.

10


• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 125 pisg ASME approved pressure relief valve

Optional EquipmentBoiler• Low temperature manual reset high limit control• ASME approved pressure relief valves are available with 30, 45, 50, 75, 100 and 125 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Burner plenum, gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain and headplate couplings• I-beam skids on models 2100 to 3000• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation

Controls & Trim• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120VAC• Head plate covers• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems and gas train• Industrial control package for process heating




11

Series

MODEL1INPUT



(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)660ºF RISE

G.P.H.5100ºF RISE

G.P.H.5

WRLG-2100 2,000,000 1,640,000 49.0 3,200 1,928 121 271 3,800WRLG-3000 3,000,000 2,460,000 73.5 4,799 2,892 149 382 4,600WRLG-4200 4,000,000 3,280,000 98.0 6,399 3,856 243 509 6,800WRLG-5250 5,000,000 4,100,000 122.5 7,999 4,820 277 642 7,800WRLG-6300 6,000,000 4,920,000 147.0 9,599 5,784 309 767 8,700WRLG-7350 7,000,000 5,740,000 171.5 11,199 6,748 344 907 9,800

1 Models shown are for natural gas only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 82.0% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.

Specifi cations

Hot Water Boilers: 12ppm Low NOx Premix

12ppm Low NOx PremixBurner AssemblyPhoto may vary from actual model

The Ajax Series premix system achieves NOx levels below 12ppm by using knit metal fi ber combustion surface, internal baffl e plate, a gas injector and low temperature gas-air mixing section incorporated into a low pressure drop manifold design. By providing thorough mixing and cool fl ame temperatures, low emissions levels are achieved.

The Ajax Series premix system is able to offer true ultra low NOx performance across the full range of fi ring via use of a fuel-air ratio valve, giving precise control for all fi ring rates. Since the combustion is precisely controlled, heat transfer effi ciencies increase as fi ring rate decreases, reducing the cost of operation.

12

Tube Bundle AssemblyPhoto may vary from actual model

Constructed and stamped in accordance with the ASME Boiler and Pressure Vessel Code Section IV (heating boilers), the tube bundle is supported by a rugged steel frame with expansion joints at each corner. This simple yet effective design allows the entire tube bundle to fl oat freely as it expands and contracts preventing thermal shock damage. Also inherent in the inclined tube bundle design is a key corrosion preventing feature; by sloping the tubes upward 1/2" per linear foot from the rear to the front, corrosion causing air bubbles are carried to the built-in eliminator. No air bubbles means no pitting and no corrosion.

A.S.M.E.

E.T.L. Listed


C

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

MOTORVOLTAGE(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS.

WRLG-2100 603/4 45 541/2 3 F 31/2 281/2 18 81/2 11/2 491/2 CL 27 120/1/60 1 16.0WRLG-3000 803/4 45 541/2 3 F 31/2 281/2 20 81/2 11/2 691/2 CL 30 230/3/60 11/2 6.0WRLG-4200 921/4 54 621/4 6 F 53/4 351/2 (2)18 7 2 731/4 246 27 230/3/60 2 6.8WRLG-5250 1111/4 54 621/4 6 F 53/4 351/2 (2)20 7 21/2 921/4 286 30 460/3/60 3 4.8WRLG-6300 1291/4 54 621/4 6 F 53/4 351/2 (2)20 7 21/2 1101/4 34 33 460/3/60 5 7.6WRLG-7350 1491/4 54 621/4 6 F 53/4 351/2 (2)22 7 21/2 1301/4 42 33 460/3/60 71/2 11.0

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train and plenum assembly, inlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket. 3 in. and smaller inlets are removable.3 Models 2100 to 3000 use one vent, 4200 to 7350 use two vents.4 Gas line size is for standard gas train and fi ring mode.5 Other voltages available, consult factory for options.6 Sizes 3000-5250 outdoor vent spacing 35 in.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

Dimensions


NATURAL GAS1

WRLG-2100 to 7350 UL CSD-1/FM 8 to 14 in. W.C.WRLG-2100 to 7350 IRI 8 to 28 in. W.C.

1 Additional “Lock-up” regulator must be furnished if maximum supply pressure exceeds maximum values.


Available Firing ModesMODELS FIRING MODES

WRLG-2100 to 7350 LOW-HIGH-LOW/MODULATION

A.S.M.E.

E.T.L. Listed


C


TOP VIEW

C

B

LTUBE

REMOVAL CLEARANCE

OutletSize D

JN

Gas Inlet Size K

InletSize D

G



RELIEF VALVE

F

H

MA

F


OPTIONALHEADPLATE

COVER

FRONT LOW WATER

CUT-OFF

1 in. Drain

13

Series

HOT WATER BOILERSInclined Water TubeForced DraftAlso available in 30ppm NOx Systems

Features• Capacities up to 21,000 MBTU/hr• ASME Boiler and Pressure Vessel Code Section IV stamped for 125 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF.• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• Models 150 to 14650 are E.T.L. listed to U.L. 795, U.L. 726 and CAN 1-3.1 standards for natural gas, #2 oil and combination gas / #2 oil• Models 16750 to 21000 carry U.L. label on the burner only

Standard EquipmentBoiler• Operating temperature controls 130 to 210 ºF• High temperature 2750 ºF cast refractory, 2 1/2 to 4 in. thick• Refractory backed by minimum of 2 in. of insulating refractory and 3 in. of high temperature insulation• Hinged burner door on models 150 to 1750• Removable front door and manway on models 2100 to 21000• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 3/8 to 1 in. thick.• 2 in. O.D. SA-178 grade-A steel tubes

• Full face headplate gaskets• Front headplate hand holes on models 2100 to 21000• Boiler legs with bolt-down lugs• I-beam skids on all models

Controls & Trim• Standard controls are CSD-1 compliant• E.T.L. / U.L. listed packaged assemblies with Power Flame™, Gordon Piatt™, and Webster™ burners for natural gas, #2 oil and combination gas / #2 oil• Safety shut-off valve1

• Main gas valve1




• Electronic ignition• Manual gas shut off valves and leakage test cock(s)• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• High and low gas pressure switches on models 3000 to 21000• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler• Temp-pressure gauge and 125 psig ASME approved pressure relief valve 1May be combined in one valve body.

Model WRFThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial building with space heating and process hot water. Inclined tubes provide uniform heat transfer, resulting in high fuel economy and long boiler life.

14


Optional EquipmentBoiler• Low temperature manual reset high limit control• ASME approved pressure relief valves are available with 30, 45, 50, 75, 100 and 125 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain & headplate couplings• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation

Burners• Low NOx burners. Models 420 to 2100 pre-certifi ed to SCAQMD Rule 1146.2• LPG or methane (digester gas) burners

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Microprocessor based combustion controller• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• FM/IRI compliant safety control systems.• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers

Copper Tubes• 13 gauge SB-75 copper tubes are recommended for hot water and other applications where raw make-up water is anticipated. Copper tube boilers are supplied with anode rods (minimum of two in each header). Copper tubes are not recommended for use with oil-fi red burners


Forced Draft ManwayPhoto may vary from actual model

15

Series

MODEL1INPUT



(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)660ºF RISE

G.P.H.5100ºF RISE

G.P.H.5

WRF_3508 350,000 287,000 8.6 595 358 19 45 1,900WRF_420 420,000 344,400 10.3 714 430 33 55 2,300WRF_525 525,000 430,500 12.9 892 538 36 67 2,500WRF_630 630,000 516,600 15.4 1,071 645 40 83 2,800WRF_735 735,000 602,700 18.0 1,249 753 44 97 3,000WRF_840 840,000 688,800 20.6 1,428 860 47 111 3,300WRF_940 940,000 770,800 23.0 1,598 963 63 121 4,000WRF_1050 1,050,000 861,000 25.7 1,785 1,075 66 135 4,300WRF_1250 1,250,000 1,025,000 30.6 2,125 1,280 73 161 4,900WRF_1500 1,500,000 1,230,000 36.7 2,550 1,536 81 192 5,500WRF_1750 1,750,000 1,435,000 42.9 2,975 1,792 87 215 6,000WRF_2100 2,100,000 1,722,000 51.4 3,570 2,151 121 270 6,500WRF_2500 2,500,000 2,050,000 61.2 4,250 2,561 135 325 7,300WRF_3000 3,000,000 2,460,000 73.5 5,099 3,073 149 381 8,000WRF_3350 3,350,000 2,747,000 82.0 5,694 3,431 163 436 8,900WRF_3770 3,770,000 3,091,400 92.3 6,408 3,861 230 458 10,300WRF_4200 4,200,000 3,444,000 102.9 7,139 4,302 243 507 11,000WRF_5250 5,250,000 4,305,000 128.6 8,924 5,377 277 640 12,700WRF_6300 6,300,000 5,166,000 154.3 10,709 6,453 309 765 14,400WRF_7350 7,350,000 6,027,000 180.0 12,494 7,528 344 905 16,300WRF_8400 8,400,000 6,888,000 205.8 14,278 8,604 478 1,049 19,700WRF_9500 9,500,000 7,790,000 232.7 16,148 9,730 515 1,197 21,200WRF_10500 10,500,000 8,610,000 257.2 17,848 10,755 545 1,312 22,600WRF_11500 11,500,000 9,430,000 281.7 19,548 11,779 580 1,449 24,100WRF_12600 12,600,000 10,332,000 308.6 21,418 12,905 612 1,575 25,600WRF_14650 14,650,000 12,013,000 358.9 24,902 15,005 826 1,768 29,200WRF_16750 16,750,000 13,735,000 410.3 28,472 17,156 889 2,015 31,800WRF_19000 19,000,000 15,580,000 465.4 32,296 19,461 960 2,292 33,200WRF_21000 21,000,000 17,220,000 514.4 35,696 21,509 1,019 2,523 35,400

1 Models shown are for natural gas, propane, #2 Oil or combination Gas / #2 Oil. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 82% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.7 Nominal ratings. For precise gas pressure requirement contact factory. Natural gas fuel pressure required to the main gas cock. Based upon 1,000 BTU/ft³ natural gas. 8 WRF_350 model is not available in 30ppm Low NOx.Other fuels or burners will have different pressure requirements.

Induced Flue Gas Recirculation 30ppm NOx SystemThe AJAX fl ue gas recirculation system will burn natural gas or LPG at or less than 30ppm NOx. On oil-fi red units, NOx levels are reduced by 40%. The burner combustion air fan is used to induce the proper fl ow of fl ue gas into the combustion air within the burner housing. The result is a cooler fl ame temperature and a reduction of NOx. A separate fl ue gas damper assembly is mechanically linked to the burner fl ue/air control system in order to maintain proper NOx control throughout the fi ring range.

Forced Draft Low NOx Boiler

For appropriate dimensions of all Low Nox Boilers, please refer to applicable tables of standard forced draft boilers. Slight variance for IFGR piping - consult factoryPhoto may vary from actual model

Specifi cations

Hot Water Boilers: Forced Draft


WRF_150 to 2100 ON-OFF, LOW-HIGH-LOW, MODWRF_2500 to 6300 LOW-HIGH-OFF, LOW-HIGH-LOW, MODWRF_7350 to 21000 MODULATION

WRF Meets SCAQMD NOx Levels

16

Standard Equipment (Forced Draft Low NOx Boiler)• Full modulation combustion system (Optional)• Cam actuated fuel system• Premix tube• IFGR piping• Damper motor with time delay relay

E.T.L. Listed

E.T.L. Canadian Listed(Gas & LPG Only)

C

A.S.M.E.

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet or control assemblies. 2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket. 3 in. and smaller inlets are removable.3 Gas line size is for standard burner, gas train and fi ring mode.4 Other voltages available, consult factory for options.SHIPPING DIMENSION: Length add 6 in. front (excluding burner length which varies on model and manufacturer) and back, Width add 12 in. right side and 6 in. left side of the boiler.

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

H JVENTSTUB

HEIGHT

KGASLINESIZE3

LTUBE

LENGTH

MVENTLOC.

RAINCAPSIZE

MOTORVOLTAGES4

(VAC/Ph/Hz)

MOTOR

H.P.MOTORAMPS.

INDOORVENT

OUTDOORVENT

WRF_350 44 32 413/4 11/2 T 2 28 6 12 3 1 373/8 12 181/2 120/1/60 1/4 2.5WRF_420 341/4 37 481/2 11/2 T 3 33 6 13 3 1 243/8 16 20 120/1/60 1/4 2.5WRF_525 391/4 37 481/2 11/2 T 3 33 8 14 3 1 293/8 17 211/2 120/1/60 1/4 2.5WRF_630 461/4 37 481/2 11/2 T 3 33 8 14 3 1 363/8 17 211/2 120/1/60 1/4 2.5WRF_735 521/4 37 481/2 11/2 T 3 33 8 16 3 1 423/8 17 24 120/1/60 1/3 3.3WRF_840 581/4 37 481/2 11/2 T 3 33 8 16 3 11/4 483/8 17 24 120/1/60 1/3 3.3WRF_940 473/4 401/2 603/4 3 F 31/4 401/2 10 16 3 11/4 361/2 18 24 120/1/60 1/3 3.3WRF_1050 513/4 401/2 603/4 3 F 31/4 401/2 10 18 3 11/4 401/2 18 27 120/1/60 1/3 3.3WRF_1250 593/4 401/2 603/4 3 F 31/4 401/2 10 20 3 11/2 481/2 18 291/2 120/1/60 1/3 3.3WRF_1500 683/4 401/2 603/4 3 F 31/4 401/2 12 20 3 11/2 571/2 19 291/2 120/1/60 1/3 3.3WRF_1750 753/4 401/2 603/4 3 F 31/4 401/2 12 22 3 11/2 641/2 19 321/2 120/1/60 1/3 3.3WRF_2100 603/4 491/2 71 3 F 31/2 443/4 12 22 3 11/2 491/2 19 321/2 120/1/60 1/3 3.3WRF_2500 703/4 491/2 71 3 F 31/2 443/4 14 24 3 2 591/2 20 351/2 230/3/60 3/4 1.9WRF_3000 803/4 491/2 71 3 F 31/2 443/4 14 20 3 2 691/2 20 291/2 230/3/60 1 2.5WRF_3350 903/4 491/2 71 3 F 31/2 443/4 16 20 3 2 791/2 21 291/2 460/3/60 11/2 1.9WRF_3770 851/4 611/2 693/4 6 F 53/4 43 16 22 3 2 661/4 25 321/2 460/3/60 11/2 1.9WRF_4200 921/4 611/2 693/4 6 F 53/4 43 16 22 3 2 731/4 26 321/2 460/3/60 11/2 1.9WRF_5250 1111/4 611/2 693/4 6 F 53/4 43 18 24 3 21/2 921/4 26 351/2 460/3/60 3 3.8WRF_6300 1291/4 611/2 693/4 6 F 53/4 43 20 26 3 21/2 1101/4 27 38 460/3/60 3 3.8WRF_7350 1491/4 611/2 693/4 6 F 53/4 43 20 26 3 3 1301/4 27 38 460/3/60 5 6.4WRF_8400 1251/2 73 811/2 8 F 77/8 53 24 26 3 3 1003/4 32 38 460/3/60 5 6.4WRF_9500 1391/2 73 811/2 8 F 77/8 53 24 28 3 3 1143/4 33 41 460/3/60 71/2 9.5WRF_10500 1501/2 73 811/2 8 F 77/8 53 26 30 3 3 1253/4 34 44 460/3/60 71/2 9.5WRF_11500 1631/2 73 811/2 8 F 77/8 53 26 30 3 3 1383/4 34 44 460/3/60 10 12.7WRF_12600 1751/2 73 811/2 8 F 77/8 53 28 32 3 3 1503/4 35 461/2 460/3/60 10 12.7WRF_14650 146 89 93 10 F 77/8 58 30 34 3 3 1161/4 38 491/2 460/3/60 15 19.0WRF_16750 162 89 93 10 F 77/8 58 32 38 3 3 1321/4 39 55 460/3/60 15 19.0WRF_19000 180 89 93 10 F 77/8 58 34 38 3 3 1501/4 40 55 460/3/60 15 19.0WRF_21000 195 89 93 10 F 77/8 58 36 40 3 3 1651/4 41 58 460/3/60 15 19.0

Dimensions

A.S.M.E.

E.T.L. Listed


C

B

C

LTUBE

REMOVAL CLEARANCE

J

G

AM

F F

RELIEF VALVE



TEMP. / PRESS. GAUGE OPTIONAL

HEADPLATE COVER

FRONT LOW WATER

CUT-OFF

OutletSize D

FORCEDDRAFTBURNER

Gas Inlet Size K

InletSize D

H


TOP VIEW

1 in. Drain

17

Series

HIGH TEMPERATUREWATER BOILERSInclined Water TubeAtmospheric

Features• Capacities up to 12,600 MBTU/hr• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP). Temperature up to 365 ºF*.• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers or draft hoods *Optional Equipment must be specifi ed for temperatures exceeding 250ºF.

Standard EquipmentBoiler• Operating temperature controls 130 to 250 ºF• High temperature 2000 ºF cast refractory, 2 to 3 1/2 in. thick• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs• I-beam skids on boiler models 90 to 300


• Main gas valve1





Controls & Trim• Standard controls are CSD-1 compliant• Models 6 to 60 use a 24 VAC / 60 Hz electronic primary safety control system with an intermittent pilot and on-off fi ring• Models 70 to 225 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and high-low fi ring• Models 250 to 300 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and three stage fi ring• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• High and low gas pressure switches on models 70 to 300• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler

Model DRNThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial building with space heating and process hot water. Inclined tubes provide uniform heat transfer, resulting in high fuel economy and long boiler life.

18



Optional EquipmentBoiler• ASME approved pressure relief valves are available with 55, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• I-beam skids on models 6 to 80


Controls• 120 VAC / 60 Hz electronic primary safety control system with microprocessor based fl ame safeguard control and interrupted pilot on models 6 to 60• High-low fi ring on models 6 to 60• Modulating fi ring on models 6 to 225• Assured low-fi re start, holds unit on low-fi re until fl ame proving period is complete• Additional safety controls, indicators and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers

Heat Exchangers• Heat exchangers may be mounted sidearm style on DR model boilers for indirect heating of water for shower, laundry, dishwashing, swimming pool, snow removal and many other applications• Exchangers are available in capacities up to and including full capacity of the boiler with 150 psig working pressure design




The cast iron burner head has long been recognized as the simplest, most trouble-free gas burner available. Each burner assembly is comprised of multiple burner heads. Each burner head has its own orifi ce and requires no adjustments.

19

Series

MODEL1INPUT



(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)6100ºF RISE

G.P.H.5200ºF RISE

G.P.H.5

DRN_6 250,000 206,250 6.2 241 122 44 38 1,800DRN_8 350,000 288,750 8.6 337 171 48 51 2,000DRN_10 420,000 346,500 10.4 405 205 52 62 2,100DRN_12 525,000 433,125 12.9 506 256 56 75 2,400DRN_15 630,000 519,750 15.5 607 307 62 94 2,600DRN_17 735,000 606,375 18.1 709 359 68 109 2,800DRN_20 840,000 693,000 20.7 810 410 72 125 3,000DRN_22 940,000 775,500 23.2 906 459 100 139 3,300DRN_25 1,050,000 866,250 25.9 1,012 512 104 154 3,400DRN_30 1,250,000 1,031,250 30.8 1,205 610 113 184 3,600DRN_35 1,500,000 1,237,500 37.0 1,446 732 123 218 4,000DRN_40 1,750,000 1,433,750 43.1 1,687 854 131 244 4,300DRN_50 2,100,000 1,732,500 51.8 2,024 1,025 199 304 5,500DRN_60 2,500,000 2,062,500 61.6 2,410 1,220 217 366 5,800DRN_70 3,000,000 2,475,000 73.9 2,892 1,464 235 427 6,100DRN_80 3,350,000 2,763,750 82.6 3,229 1,635 254 489 6,400DRN_90 3,770,000 3,110,250 92.9 3,634 1,840 360 549 10,200DRN_100 4,200,000 3,465,000 103.5 4,049 2,050 377 607 10,400DRN_125 5,250,000 4,331,250 129.4 5,061 2,562 422 765 11,100DRN_150 6,300,000 5,197,500 155.3 6,073 3,075 464 915 11,700DRN_175 7,350,000 6,063,750 181.1 7,085 3,587 511 1,082 12,400DRN_200 8,400,000 6,930,000 207.0 8,098 4,100 739 1,220 17,900DRN_225 9,500,000 7,837,500 234.1 9,158 4,637 795 1,390 18,800DRN_250 10,500,000 8,662,500 258.8 10,112 5,125 839 1,524 19,500DRN_275 11,500,000 9,487,500 283.4 11,086 5,613 891 1,683 20,400DRN_300 12,600,000 10,395,000 310.5 12,146 6,150 939 1,829 21,200

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 82.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.

Specifi cations


NATURAL GAS1 PROPANE GAS

DRN_6 to 60 UL CSD-1/FM, IRI 7 to 14 in. W.C. 11 to 14 in. W.C.DRN_70 to 100 UL CSD-1/FM 8 to 14 in. W.C. 12 to 14 in. W.C.DRN_70 to 100 IRI 8 to 28 in. W.C. 12 to 28 in. W.C.DRN_125 to 225 UL CSD-1/FM, IRI 10 to 28 in. W.C. 16 to 28 in. W.C.DRN_250 to 300 UL CSD-1/FM, IRI 18 to 28 in. W.C. 24 to 28 in. W.C.

1 Additional “lock-up” regulator must be furnished if maximum supply pressure exceeds the maximum value.


MODELS FIRING MODESDRN_6 to 60 ON-OFF, HIGH-LOW, MODULATIONDRN_70 to 225 HIGH-LOW, MODULATIONDRN_250 to 300 THREE STAGE


High Temperature Hot Water Boilers: Atmospheric

20


(120 VAC / 60Hz / 1 Phase)DRN_6 to 60 1DRN_70 to 100 4DRN_125 to 225 6.5DRN_250 to 300 8

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket. 3 in. and smaller inlets are removable.3 Models 6 to 60 use one vent, 70 to 300 use two vents. For indoor, atmospheric vents 18 in. or larger uses barometric dampers instead of draft hoods. For outdoor, use rain cap.4 Gas line size is for standard gas train and fi ring mode.CF - Consult factory for options and information, N/A - Not ApplicableSHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

H JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.


NBAROMETRIC

DAMPER CLHEIGHT

RAINCAPSIZE

INDOORVENT DIA.3

OUTDOORVENT DIA.3

DRN_6 261/4 34 54 11/2 T 31/4 281/2 7 11 3 3/4 141/2 CL 13 N/A 17DRN_8 311/4 34 54 11/2 T 31/4 281/2 8 12 3 3/4 191/2 CL 13 N/A 181/2DRN_10 351/4 34 54 11/2 T 31/4 281/2 9 13 3 3/4 231/2 CL 17 N/A 20DRN_12 401/4 34 54 11/2 T 31/4 281/2 10 14 3 1 281/2 CL 17 N/A 211/2DRN_15 471/4 34 54 11/2 T 31/4 281/2 10 14 3 1 351/2 CL 17 N/A 211/2DRN_17 531/4 34 54 11/2 T 31/4 281/2 12 16 3 1 411/2 CL 20 N/A 24DRN_20 591/4 34 54 11/2 T 31/4 281/2 12 16 3 1 471/2 CL 20 N/A 24DRN_22 513/4 371/2 62 3 F 41/2 333/4 12 16 3 1 363/4 CL 20 N/A 24DRN_25 553/4 371/2 62 3 F 41/2 333/4 14 18 3 1 403/4 CL 20 N/A 27DRN_30 633/4 371/2 62 3 F 41/2 333/4 16 20 3 11/4 483/4 CL 20 N/A 291/2DRN_35 723/4 371/2 62 3 F 41/2 333/4 16 20 3 11/4 573/4 CL 20 N/A 291/2DRN_40 793/4 371/2 62 3 F 41/2 333/4 18 22 3 11/4 643/4 CL N/A 27 321/2DRN_50 683/4 461/2 681/4 3 F 51/2 411/2 18 22 3 11/2 493/4 CL N/A 27 321/2DRN_60 783/4 461/2 681/4 3 F 51/2 411/2 20 24 3 11/2 593/4 CL N/A 30 351/2DRN_70 883/4 461/2 681/4 3 F 51/2 411/2 (2)16 (2)20 3 2 693/4 171/2 20 N/A 291/2DRN_80 983/4 461/2 681/4 3 F 51/2 411/2 (2)16 (2)20 3 2 793/4 171/2 20 N/A 291/2DRN_90 911/4 57 811/2 6 F 63/4 511/4 (2)18 (2)22 3 2 661/4 171/2 N/A 27 321/2DRN_100 981/4 57 811/2 6 F 63/4 511/4 (2)18 (2)22 3 2 731/4 171/2 N/A 27 321/2DRN_125 1171/4 57 811/2 6 F 63/4 511/4 (2)20 (2)24 3 21/2 921/4 171/2 N/A 30 351/2DRN_150 1351/4 57 811/2 6 F 63/4 511/4 (2)24 (2)26 3 21/2 1101/4 40 N/A 33 38DRN_175 1551/4 57 811/2 6 F 63/4 511/4 (2)24 (2)26 3 21/2 1301/4 42 N/A 33 38DRN_200 1291/2 69 881/2 8 F 83/4 53 (2)24 (2)26 3 3 1003/4 53 N/A CF 38DRN_225 1431/2 69 881/2 8 F 83/4 53 (2)24 (2)28 3 3 1143/4 59 N/A CF 41DRN_250 1541/2 69 881/2 8 F 83/4 53 (2)26 (2)30 3 3 1253/4 59 N/A CF 44DRN_275 1671/2 69 881/2 8 F 83/4 53 (2)26 (2)30 3 3 1383/4 59 N/A CF 44DRN_300 1791/2 69 881/2 8 F 83/4 53 (2)28 (2)32 3 3 1503/4 59 N/A CF 461/2

Dimensions

E.T.L. Listed

A.S.M.E.


C

AMF


HEADPLATE COVER

FRONT LOW WATER

CUT-OFF H


RELIEF VALVE

F


INSPECTIONOPENINGS

InletSize D

G

Gas Inlet Size K

JNOutletSize D

LTUBE

REMOVAL CLEARANCE

B

C


TOP VIEW

1 in. Drain

21

Series

HIGH TEMPERATUREWATER BOILERSInclined Water TubeLow NOx 20ppmPremix

Features• 20 ppm NOx (at 3% O2) based on factory high fi re testing• Capacities up to 2,000 MBTU/hr• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP). Temperature up to 365 ºF*.• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers *Optional Equipment must be specifi ed for temperatures exceeding 250ºF.

Standard EquipmentBoiler• Operating temperature controls from 130 to 250 ºF• High temperature 2000 ºF cast refractory, 2 to 3 in. thick• 18 gauge galvanized steel jacket with air wall and head plate covers for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs

Combustion System• Ajax low NOx forced draft premix burners with Ajax fuel injectors and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulators1


• Main gas valve1



• Electronic ignition• Manual gas shut off valves for each burner and leakage test cock(s)• Premix boilers receive a full factory fi re test 1May be combined in one valve body.

Controls & Trim• Standard controls are CSD-1 compliant• Model 12 uses a 120 VAC / 60 Hz electronic primary safety control system with an interrupted pilot and on-off fi ring• Models 25 to 50 use a 120 VAC / 60 Hz electronic primary safety control systems with an interrupted pilot and on-off fi ring with low-fi re start• Digital operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• Combustion air switch• Main power, main fl ame and fl ame fail indicators

Model DRPGThe AJAX Series premix water boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989, and is committed to meeting all clean-air requirements for today and into the future.

22

• Electronic microprocessor based fl ame safeguard control• UV scanner for fl ame detection• Proven low-fi re start (models 25 to 50), prevents unit from lighting off on high-fi re• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 150 psig ASME approved pressure relief valve

Optional EquipmentBoiler• ASME approved pressure relief valves are available with 55, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Burner plenum, gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• I-beam skids on models 12 to 50• Indoor models is available with weather cover*• High and low gas pressure switch * Models are ETL certifi ed for indoor operation

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• High-low fi ring with proven low-fi re start on models 25 to 50• Additional safety controls, indicators, and gauges

• Auxiliary low water cut-off, fl oat-type low water cut-offs, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers


23


Series

High Temperature Hot Water Boilers: 20ppm Low NOx Premix

MODEL1INPUT



(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)6100ºF RISE

G.P.H.5200ºF RISE

G.P.H.5

DRPG-12 500,000 417,500 12.5 482 244 56 76 2,400DRPG-25 1,000,000 835,000 24.9 964 488 104 154 3,400DRPG-35 1,500,000 1,252,500 37.4 1,446 732 123 218 4,000DRPG-50 2,000,000 1,670,000 49.9 1,928 976 199 304 5,500

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 83.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.

Specifi cations


In 1989, Ajax Boiler contracted with AGA Research Laboratory to evaluate advanced low NOx burner designs. Since that year Ajax Boiler has provided low NOx in California, Texas, Nevada, Utah and Washington State in increasing numbers. During the last several years, Ajax Boiler has developed its advanced premix 12 and 20 ppm NOx burner designs specifi cally for low NOx Ajax Series and Ace Series water heater. These simple, yet effective, designs have proven to be reliable over many years of service.

The Ajax Series premix system achieves NOx levels below 20 ppm by using ceramic combustion surface, internal baffl e plate, a gas injector and low temperature gas-air mixing section incorporated into a low pressure drop manifold design. By providing thorough mixing and cool fl ame temperatures, low emissions levels are achieved.

24

Tube Bundle AssemblyPhoto may vary from actual model


E.T.L. Listed

A.S.M.E.


C

E.T.L. Listed

A.S.M.E.


C

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

STANDARDVOLTAGE5

(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS.

DRPG-12 401/4 34 54 11/2 T 31/4 281/2 10 3 1 281/2 CL 14 120/1/60 1/3 7.2DRPG-25 553/4 371/2 62 3 F 41/2 333/4 14 3 1 403/4 CL 21 120/1/60 1/2 9.8DRPG-35 723/4 371/2 62 3 F 41/2 333/4 16 3 11/4 573/4 CL 24 120/1/60 3/4 13.8DRPG-50 683/4 461/2 681/4 3 F 51/2 411/2 18 3 11/2 493/4 CL 27 120/1/60 1 16.0

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet, plenum or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket. 3 in. and smaller inlets are removable.3 Models 12 to 50 use one vent.4 Gas line size is for standard gas train and fi ring mode.5 Other voltages available, consult factory for options.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

Dimensions


NATURAL GAS1

ON-OFF DRPG-12 to 50 UL CSD-1/FM 8 to 14 in. W.C.ON-OFF DRPG-12 to 50 IRI ON-OFF 8 to 28 in. W.C.LHO, LHL DRPG-25 to 50 UL CSD-1/FM 9 to 14 in. W.C.LHO, LHL DRPG-25 to 50 IRI 9 to 28 in. W.C.




TOP VIEW

H

N JOutletSize D

LTUBE

REMOVAL CLEARANCE

B

C

Gas Inlet Size K

G

InletSize D

INSPECTIONOPENINGS

M

A

FF


HEADPLATE COVER

FRONT LOW WATER

CUT-OFF

RELIEF VALVE



1 in. Drain

25

Series

HIGH TEMPERATUREWATER BOILERSInclined Water TubeUltra Low NOx 12ppmPremix

Features• 12 ppm NOx (at 3% O2) based on factory high fi re testing• Capacities up to 7,000 MBTU/hr• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP). Temperature up to 365 ºF*

• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using commom straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers *Optional Equipment must be specifi ed for temperatures exceeding 250ºF.

Standard EquipmentBoiler• Operating temperature controls 130 to 250 ºF• High temperature 2000 ºF cast refractory, 3 in. thick• 18 gauge galvanized steel jacket with air wall and head plate covers for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs

• I-beam skids on boiler models 90 to 175

Combustion System• Knit metal fiber combustion surface for optimal efficiency and durability• Fuel-air ratio valve for precise combustion control• Ajax fuel injectors and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulator1


• Main gas valve1




Controls & Trim• Standard controls are CSD-1 compliant• All models use a 120 VAC / 60 Hz electronic primary safety control system with interrupted pilot and high-low fi ring with low-fi re start• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• Combustion air switch and high and low gas pressure switches

Model DRLGThe AJAX Series premix water boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989, and is committed to meeting all clean-air requirements for today and into the future.

26

• Main power, main fl ame and fl ame fail indicators• UV scanner for fl ame detection• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 150 psig ASME approved pressure relief valve

Optional EquipmentBoiler• ASME approved pressure relief valves are available with 55, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Burner plenum, gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• I-beam skids on models 50 to 70• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, fl oat-type low water cut-offs, pump controls and feeders• IRI compliant safety control systems and gas train• Industrial control package for process heating• Multiple communications options, multi-stage controller

interfaces, advanced combustion controllers and PID fi ring rate controllers• Assured low-fi re start, holds unit on low-fi re until fl ame proving period is complete


27

Low NOx PremixAir Control Damper with Air Inlet FilterPhoto may vary from actual model


Series

High Temperature Hot Water Boilers: 12ppm Low NOx Premix

MODEL1INPUT



(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)6100ºF RISE

G.P.H.5200ºF RISE

G.P.H.5

DRLG-50 2,000,000 1,670,000 49.9 1,928 976 199 304 5,500DRLG-70 3,000,000 2,505,000 74.8 2,892 1,464 235 427 6,300DRLG-100 4,000,000 3,340,000 99.8 3,856 1,952 377 609 9,800DRLG-125 5,000,000 4,175,000 124.7 4,820 2,440 422 768 10,800DRLG-150 6,000,000 5,010,000 149.7 5,784 2,928 464 918 11,800DRLG-175 7,000,000 5,845,000 174.6 6,748 3,416 511 1,084 12,800

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 83.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.

Specifi cations

28


The Ajax Series premix system achieves NOx levels below 12 ppm by using knit metal fi ber combustion surface, internal baffl e plate, a gas injector and low temperature gas-air mixing section incorporated into a low pressure drop manifold design. By providing thorough mixing and cool fl ame temperatures, low emissions levels are achieved.

The Ajax Series premix system is able to offer true ultra low NOx performance across the full range of fi ring via use of a fuel-air ratio valve, giving precise control for all fi ring rates.Since the combustion is precisely controlled, heat transfer effi ciencies increase as fi ring rate decreases, reducing the cost of operation.

E.T.L. Listed

A.S.M.E.


C

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

MOTORVOLTAGE(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS.

DRLG-50 683/4 45 641/4 3 F 51/2 371/2 18 81/2 11/2 493/4 CL 27 120/1/60 1 16.0DRLG-70 883/4 45 641/4 3 F 51/2 371/2 20 81/2 11/2 693/4 CL 30 230/3/60 11/2 6.0DRLG-100 981/4 54 76 6 F 63/4 453/4 (2)18 7 2 731/4 24 27 230/3/60 2 6.8DRLG-125 1171/4 54 76 6 F 63/4 453/4 (2)20 7 21/2 921/4 28 30 460/3/60 3 4.8DRLG-150 1351/4 54 76 6 F 63/4 453/4 (2)20 7 21/2 1101/4 34 33 460/3/60 5 7.6DRLG-175 1551/4 54 76 6 F 63/4 453/4 (2)22 7 21/2 1301/4 42 33 460/3/60 71/2 11.0

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet, plenum or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket. 3 in. and smaller inlets are removable.3 Models 50 to 70 use one vent, 100 to 175 use two vents.4 Gas line size is for standard gas train and fi ring mode.5 Other voltages available, consult factory for options.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

Dimensions


NATURAL GAS1

DRLG-50 to 175 UL CSD-1/FM 8 to 14 in. W.C.DRLG-50 to 175 IRI 8 to 28 in. W.C.



DRLG-50 to 175 LOW-HIGH-LOW, MODULATION

C

B

LTUBE

REMOVAL CLEARANCE

OutletSize D

JN

Gas Inlet Size K

G

InletSize D

INSPECTIONOPENINGS



RELIEF VALVE

H

M

AF

F


HEADPLATE COVER

FRONT LOW WATER

CUT-OFF


TOP VIEW

1 in. Drain

29

1 Additional “Lock-up” regulator must be furnished if maximum supply pressure exceeds maximum values.

Series

HIGH TEMPERATUREWATER BOILERSInclined Water TubeForced Draft

Features• Capacities up to 12,600 MBTU/hr• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP) Temperature up to 365 ºF*.• Full access to combustion chamber and water sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795, U.L. 726 and CAN 1-3.1 standards for natural gas, #2 oil and combination gas / #2 oil *Optional Equipment must be specifi ed for temperatures exceeding 250ºF.

Standard EquipmentBoiler• Operating temperature controls 130 to 250 ºF• High temperature 2750 ºF cast refractory, 2 1/2 to 4 in. thick• Refractory backed by minimum of 2 in. of insulating refractory and 3 in. of high temperature insulation• Hinged burner door on models 6 to 40• Removable front door and left-side manway on models 50 to 300• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Water section, including tubesheets and removable headplates, is made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets

• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs• I-beam skids on all models

Controls & Trim• Standard controls are CSD-1 compliant• E.T.L. / U.L. listed packaged assemblies with Power Flame™, Gordon Piatt™ and Webster™ burners for natural gas, #2 oil and combination gas / #2 oil• Safety shut-off valve1

• Main gas valve1




• Electronic ignition• Manual gas shut off valves and leakage test cock(s)• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and test switch• High and low gas pressure switches on models 70 to 300• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 150 psig ASME approved pressure relief valve 1May be combined in one valve body.

Model DRFThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial building with space heating and process hot water. Inclined tubes provide uniform heat transfer, resulting in high fuel economy and long boiler life.

30


Optional EquipmentBoiler• ASME approved pressure relief valves are available with 55, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation

Burners• Low NOx burners• LPG or methane (digester gas) burners

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC.• Microprocessor based combustion controller• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers


Forced Draft Low NOx Boilerwith Induced Flue Gas Recirculation 30ppm NOx SystemPhoto may vary from actual model

31

Series

1 Models shown are for natural gas, propane, #2 Oil or combination Gas / #2 Oil. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 83.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 40 °F exchanger domestic water inlet temperature.6 Estimated shipping weights. For weight-critical applications, consult factory.7 Nominal ratings. For precise gas pressure requirement contact factory. Natural gas fuel pressure required to the main gas cock. Based upon 1,000 BTU/ft³ natural gas. 8 DRF_6 & 8 model is not available in 30ppm Low NOx.Other fuels or burners will have different pressure requirements.

Specifi cations

Tube Bundle & Drum AssemblyPhoto may vary from actual model


High Temperature Hot Water Boilers: Forced Draft

MODEL1INPUT



(GAL.)

HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)6100ºF RISE

G.P.H.5200ºF RISE

G.P.H.5

DRF_68 250,000 208,750 6.2 241 122 44 38 3,000DRF_88 350,000 292,250 8.7 337 171 48 51 3,200DRF_10 420,000 350,700 10.5 405 205 52 62 3,300DRF_12 525,000 438,375 13.1 506 256 56 75 3,700DRF_15 630,000 526,050 15.7 607 307 62 94 4,100DRF_17 735,000 613,725 18.3 709 359 68 109 4,400DRF_20 840,000 701,400 20.9 810 410 72 125 4,700DRF_22 940,000 784,900 23.4 906 459 100 139 5,200DRF_25 1,050,000 876,750 26.2 1,012 512 104 154 5,300DRF_30 1,250,000 1,043,750 31.2 1,205 610 113 184 5,600DRF_35 1,500,000 1,252,500 37.4 1,446 732 123 218 6,200DRF_40 1,750,000 1,461,250 43.6 1,687 854 131 244 6,600DRF_50 2,100,000 1,753,500 52.4 2,024 1,025 199 304 8,400DRF_60 2,500,000 2,087,500 62.4 2,410 1,220 217 366 9,000DRF_70 3,000,000 2,505,000 74.8 2,892 1,464 235 427 9,500DRF_80 3,350,000 2,797,250 83.6 3,229 1,635 254 489 10,000DRF_90 3,770,000 3,147,950 94.0 3,634 1,840 360 549 15,600DRF_100 4,200,000 3,507,000 104.8 4,049 2,050 377 607 16,000DRF_125 5,250,000 4,383,750 131.0 5,061 2,562 422 765 17,100DRF_150 6,300,000 5,260,500 157.1 6,073 3,075 464 915 18,100DRF_175 7,350,000 6,137,250 183.3 7,085 3,587 511 1,082 19,300DRF_200 8,400,000 7,014,000 209.5 8,098 4,100 739 1,220 27,500DRF_225 9,500,000 7,932,500 237.0 9,158 4,637 795 1,390 28,900DRF_250 10,500,000 8,767,500 261.9 10,122 5,125 839 1,524 30,000DRF_275 11,500,000 9,602,500 286.9 11,086 5,613 891 1,683 31,400DRF_300 12,600,000 10,521,000 314.3 12,146 6,150 939 1,829 32,600

MODELS FIRING MODESDRF_6 to 50 ON-OFF, LOW-HIGH-LOW, MODDRF_60 to 150 LOW-HIGH-OFF, LOW-HIGH-LOW, MODDRF_175 to 300 MODULATION


32

E.T.L. Listed

A.S.M.E.


C

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket. 3 in. and smaller inlets are removable.3 Gas line size is for standard burner, gas train and fi ring mode.4 Other voltages available, consult factory for options.SHIPPING DIMENSION: Length add 6 in. front (excluding burner length which varies on model and manufacturer) and back, Width add 12 in. right side and 6 in. left side of the boiler.

Dimensions

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET /OUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

H JVENTSTUB

HEIGHT

KGASLINESIZE3

LTUBE

LENGTH

MVENTLOC.

MOTORVOLTAGES

(VAC/Ph/Hz)

MOTOR

H.P.MOTORAMPS.

RAINCAPSIZE

INDOOR VENT DIA.

OUTDOOR VENT DIA.

DRF_6 261/4 37 573/4 11/2 T 31/4 321/2 6 11 3 1 141/2 CL 120/1/60 1/4 2.5 17DRF_8 311/4 37 573/4 11/2 T 31/4 321/2 6 12 3 1 191/2 CL 120/1/60 1/4 2.5 181/2DRF_10 351/4 37 573/4 11/2 T 31/4 321/2 6 13 3 1 231/2 CL 120/1/60 1/4 2.5 20DRF_12 401/4 37 573/4 11/2 T 31/4 321/2 6 14 3 1 281/2 171/2 120/1/60 1/4 2.5 211/2DRF_15 471/4 37 573/4 11/2 T 31/4 321/2 8 14 3 1 351/2 171/2 120/1/60 1/4 2.5 211/2DRF_17 531/4 37 573/4 11/2 T 31/4 321/2 8 16 3 1 411/2 181/2 120/1/60 1/3 3.3 24DRF_20 591/4 37 573/4 11/2 T 31/4 321/2 8 16 3 1 471/2 181/2 120/1/60 1/3 3.3 24DRF_22 513/4 401/2 721/4 3 F 41/2 433/4 8 16 3 1 363/4 201/2 120/1/60 1/3 3.3 24DRF_25 553/4 401/2 721/4 3 F 41/2 433/4 10 18 3 1 403/4 201/2 120/1/60 1/3 3.3 27DRF_30 633/4 401/2 721/4 3 F 41/2 433/4 10 20 3 1 483/4 201/2 120/1/60 1/3 3.3 291/2DRF_35 723/4 401/2 721/4 3 F 41/2 433/4 10 20 3 11/4 573/4 211/2 120/1/60 1/3 3.3 291/2DRF_40 793/4 401/2 721/4 3 F 41/2 433/4 12 22 3 11/2 643/4 211/2 120/1/60 1/3 3.3 321/2DRF_50 683/4 491/2 803/4 3 F 51/2 533/4 12 22 3 11/2 493/4 241/2 120/1/60 1/3 3.3 321/2DRF_60 783/4 491/2 803/4 3 F 51/2 533/4 12 24 3 11/2 593/4 241/2 230/3/60 3/4 1.9 351/2DRF_70 883/4 491/2 803/4 3 F 51/2 533/4 14 20 3 2 693/4 251/2 230/3/60 1 2.5 291/2DRF_80 983/4 491/2 803/4 3 F 51/2 533/4 14 20 3 2 793/4 251/2 460/3/60 11/2 1.9 291/2DRF_90 911/4 611/2 831/2 6 F 63/4 533/4 16 22 3 2 661/4 30 460/3/60 11/2 1.9 321/2DRF_100 981/4 611/2 831/2 6 F 63/4 533/4 16 22 3 2 731/4 30 460/3/60 11/2 1.9 321/2DRF_125 1171/4 611/2 831/2 6 F 63/4 533/4 18 24 3 2 921/4 31 460/3/60 3 3.8 351/2DRF_150 1351/4 611/2 831/2 6 F 63/4 533/4 18 26 3 21/2 1101/4 31 460/3/60 3 3.8 38DRF_175 1551/4 611/2 831/2 6 F 63/4 533/4 20 26 3 21/2 1301/4 32 460/3/60 5 6.4 38DRF_200 1291/2 73 961/2 8 F 83/4 611/4 20 26 3 3 1003/4 35 460/3/60 5 6.4 38DRF_225 1431/2 73 961/2 8 F 83/4 611/4 24 28 3 3 1143/4 36 460/3/60 5 6.4 41DRF_250 1541/2 73 961/2 8 F 83/4 611/4 24 30 3 3 1253/4 37 460/3/60 5 6.4 44DRF_275 1671/2 73 961/2 8 F 83/4 611/4 26 30 3 3 1383/4 38 460/3/60 10 12.7 44DRF_300 1791/2 73 961/2 8 F 83/4 611/4 26 32 3 3 1503/4 38 460/3/60 10 12.7 461/2

E.T.L. Listed

A.S.M.E.


C


TOP VIEW

J

FORCEDDRAFTBURNER

C

B

LTUBE

REMOVAL CLEARANCE

OutletSize D

Gas Inlet Size K

G

InletSize D

INSPECTIONOPENINGS



RELIEF VALVE

H

FA

MF


HEADPLATE COVERS

FRONT LOW WATER

CUT-OFF

1 in. Drain

33

Series

LOW PRESSURESTEAM BOILERSInclined Water Tube With Steam DrumAtmospheric

Features• Capacities up to 12,600 MBTU/hr (301.1 B.H.P.)• ASME Boiler and Pressure Vessel Code Section IV stamped for 15 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF.• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using readily available straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers or draft hoods

Standard EquipmentBoiler• High temperature 2000 ºF cast refractory, 2 to 3 in. thick• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Steam and water sections, including tubesheets and removable headplates, are made from pressure vessel quality steel, from 3/8 to 3/4 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face headplate gaskets• Front headplate hand holes on models 50 to 300• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs



• Main gas valve1





Controls & Trim• Standard controls are CSD-1 compliant• Models 6 to 60 use a 24 VAC / 60 Hz electronic primary safety control system with an intermittent pilot and on-off fi ring• Models 70 to 225 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and high-low fi ring• Models 250 to 300 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and three stage fi ring• Mechanical operating control and manual reset high limit control• Probe type low water cut-off with manual reset and water gauge glass• High and low gas pressure switches on models 70 to 300

Model HRNThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial building

with space heating and process steam. Inclined tubes provide uniform heat transfer, resulting in high fuel economy and

34


• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 15 psig ASME approved pressure relief valve

Optional EquipmentBoiler• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain and headplate couplings• I-beam skids on models 6 to 80


Controls• 120 VAC / 60 Hz electronic primary safety control system with microprocessor based fl ame safeguard control and interrupted pilot on models 6 to 60• High-low fi ring on models 6 to 60• Modulating fi ring on models 6 to 225• Assured low-fi re start, holds unit on low-fi re until fl ame proving period is complete• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers

Copper Tubes• 13 gauge SB-75 copper tubes are recommended for hot water, and other applications where raw make-up water is anticipated. Copper tube boilers are supplied with anode rods (minimum of two in each header)

Heat Exchangers• Heat exchangers may be mounted sidearm style on HR model boilers for indirect heating of water for shower, laundry, dishwashing, swimming pool, snow removal and many other applications• Exchangers are available in capacities up to and including full capacity of the boiler with 150 psig working pressure design




35

Series

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 82.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 200 °F feed water temperature.6 Feeder pump should be sized to provide double the consumption rate.7 Estimated shipping weights. For weight-critical applications, consult factory.

Specifi cations

MODELSALL FIRING MODES NATURAL GAS PROPANE GAS

HRN_6 to 60 UL CSD-1/FM, IRI 7 to 14 in. W.C. 11 to 14 in. W.C.HRN_70 to 100 UL CSD-1/FM 8 to 14 in. W.C. 12 to 14 in. W.C.HRN_70 to 100 IRI 8 to 28 in. W.C. 12 to 28 in. W.C.HRN_125 to 225 UL CSD-1/FM, IRI 10 to 28 in. W.C. 16 to 28 in. W.C.HRN_250 to 300 UL CSD-1/FM, IRI 18 to 28 in. W.C. 24 to 28 in. W.C.


MODELS FIRING MODES

HRN_6 to 60 ON-OFF / HIGH-LOW / MODULATIONHRN_70 to 275 HIGH-LOW / MODULATIONHRN_250 to 300 THREE STAGE

Available Firing Models

Tube Bundle & Drum Assemble with Atmospheric Burner Assembly


The Ajax Series “H” boiler is an adaptation of Ajax Series “W” design providing drum construction for additional steam or water storage capacity.

Constructed and Stamped to A.S.M.E. Code Section IV.

Low Pressure Steam Boilers: Atmospheric

MODEL1INPUT


STEAM OUTPUT(LBS./HR AT

MAWP)5

FEED WATERCONSUMPTION

(GAL./HR)6

WATER VOLUME HEATING SURFACE

(SQ.FT.)

APPROX.WEIGHT

(LBS.)7

BOTTOMBLOWOFF

VALVE SIZE

RAINCAPSIZE

WORKING(GAL.)

FLOODED(GAL.)

HRN_6 250,000 206,250 6.2 203 25 25 44 38 1,700 1 17HRN_8 350,000 288,750 8.6 285 36 28 48 51 1,900 1 181/2HRN_10 420,000 346,500 10.3 341 43 30 52 62 2,000 1 20HRN_12 525,000 433,125 12.9 427 53 32 56 75 2,200 1 211/2HRN_15 630,000 519,750 15.5 512 64 36 62 94 2,500 1 211/2HRN_17 735,000 606,375 18.1 597 75 39 68 109 2,700 1 24HRN_20 840,000 693,000 20.7 683 85 42 72 125 2,900 1 24HRN_22 940,000 775,500 23.2 764 96 62 100 139 3,100 1 24HRN_25 1,050,000 866,250 25.9 854 107 65 104 154 3,300 1 27HRN_30 1,250,000 1,031,250 30.8 1,016 127 71 113 184 3,500 1 291/2HRN_35 1,500,000 1,237,500 37.0 1,219 152 78 123 218 3,700 11/4 291/2HRN_40 1,750,000 1,433,750 43.1 1,423 178 83 131 244 3,900 11/4 321/2HRN_50 2,100,000 1,732,500 51.8 1,707 213 141 201 304 5,400 11/4 321/2HRN_60 2,500,000 2,062,500 61.6 2,032 254 153 219 366 5,700 11/4 351/2HRN_70 3,000,000 2,475,000 73.9 2,439 305 166 238 427 6,000 11/2 291/2HRN_80 3,350,000 2,763,750 82.6 2,683 335 179 256 489 6,300 11/2 291/2HRN_90 3,770,000 3,110,250 92.9 3,065 383 261 363 549 9,300 11/2 321/2HRN_100 4,200,000 3,465,000 103.5 3,414 427 273 379 607 9,900 11/2 321/2HRN_125 5,250,000 4,331,250 129.4 4,268 534 307 424 766 10,900 11/2 351/2HRN_150 6,300,000 5,197,500 155.3 5,121 640 339 467 916 11,600 11/2 38HRN_175 7,350,000 6,063,750 181.1 5,975 747 375 514 1,082 11,800 11/2 38HRN_200 8,400,000 6,930,000 207.0 6,828 854 506 739 1,220 17,100 2 38HRN_225 9,500,000 7,837,500 234.1 7,722 966 545 795 1,390 17,900 2 41HRN_250 10,500,000 8,662,500 258.8 8,535 1,067 575 839 1,524 18,600 2 44HRN_275 11,500,000 9,487,500 283.4 9,348 1,169 610 891 1,683 19,400 2 44HRN_300 12,600,000 10,395,000 310.5 10,242 1,281 643 939 1,829 20,200 2 461/2

36



(120 VAC / 60Hz / 1 Phase)HRN_6 to 60 1HRN_70 to 100 4HRN_125 to 225 6.5HRN_250 to 300 8

E.T.L. Listed


C

A.S.M.E.

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Models 6 to 60 use one vent, 70 to 300 use two vents. For indoor, atmospheric vents 18 in. or larger uses barometric dampers instead of draft hoods. For outdoor, use rain cap.4 Gas line size is for standard gas train and fi ring mode.CF - Consult factory for options and information, N/A - Not ApplicableSHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

E.T.L. Listed


C

A.S.M.E.

Dimensions

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLETSIZE2

EOUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

G JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NDRAFTHOOD

CLEARANCE

NBAROMETRIC

DAMPER CLHEIGHT

INDOORVENT DIA.3

OUTDOORVENT DIA.3

HRN_6 261/4 34 533/4 1 T 3 F 31/4 281/4 7 11 3 3/4 141/2 CL 13 N/AHRN_8 311/4 34 533/4 1 T 3 F 31/4 281/4 8 12 3 3/4 191/2 CL 13 N/AHRN_10 351/4 34 533/4 1 T 3 F 31/4 281/4 9 13 3 3/4 231/2 CL 17 N/AHRN_12 401/4 34 533/4 1 T 3 F 31/4 281/4 10 14 3 1 281/2 CL 17 N/AHRN_15 471/4 34 533/4 1 T 3 F 31/4 281/4 10 14 3 1 351/2 CL 17 N/AHRN_17 531/4 34 533/4 1 T 3 F 31/4 281/4 12 16 3 1 411/2 CL 20 N/AHRN_20 591/4 34 533/4 1 T 3 F 31/4 281/4 12 16 3 1 471/2 CL 20 N/AHRN_22 511/2 371/2 613/4 11/2 T 4 F 41/4 331/4 12 16 3 1 363/4 CL 20 N/AHRN_25 551/2 371/2 613/4 11/2 T 4 F 41/4 331/4 14 18 3 1 403/4 CL 20 N/AHRN_30 631/2 371/2 613/4 11/2 T 4 F 41/4 331/4 16 20 3 11/4 483/4 CL 20 N/AHRN_35 721/2 371/2 613/4 11/2 T 4 F 41/4 331/4 16 20 3 11/4 573/4 CL 20 N/AHRN_40 791/2 371/2 613/4 11/2 T 4 F 41/4 331/4 18 22 3 11/4 643/4 CL N/A 27HRN_50 681/2 461/2 68 11/2 T 6 F 51/4 403/4 18 22 3 11/2 493/4 CL N/A 27HRN_60 781/2 461/2 68 11/2 T 6 F 51/4 403/4 20 24 3 11/2 593/4 CL N/A 30HRN_70 881/2 461/2 68 11/2 T 6 F 51/4 403/4 (2)16 (2)20 3 2 693/4 171/2 20 N/AHRN_80 981/2 461/2 68 11/2 T 6 F 51/4 403/4 (2)16 (2)20 3 2 793/4 171/2 20 N/AHRN_90 911/4 57 803/4 2 T 8 F 63/4 501/2 (2)18 (2)22 3 2 661/4 171/2 N/A 27HRN_100 981/4 57 803/4 2 T 8 F 63/4 501/2 (2)18 (2)22 3 2 731/4 171/2 N/A 27HRN_125 1171/4 57 803/4 2 T 8 F 63/4 501/2 (2)20 (2)24 3 21/2 921/4 171/2 N/A 30HRN_150 1351/4 57 803/4 2 T 8 F 63/4 501/2 (2)24 (2)26 3 21/2 1101/4 40 N/A 33HRN_175 1551/4 57 803/4 2 T 8 F 63/4 501/2 (2)24 (2)26 3 21/2 1301/4 42 N/A 33HRN_200 1291/4 69 881/4 2 T 10 F 83/4 53 (2)24 (2)26 3 3 1003/4 53 N/A CFHRN_225 1431/4 69 881/4 2 T 10 F 83/4 53 (2)24 (2)28 3 3 1143/4 53 N/A CFHRN_250 1541/4 69 881/4 2 T 12 F 83/4 53 (2)26 (2)30 3 3 1253/4 53 N/A CFHRN_275 1671/4 69 881/4 2 T 12 F 83/4 53 (2)26 (2)30 3 3 1383/4 53 N/A CFHRN_300 1791/4 69 881/4 2 T 12 F 83/4 53 (2)28 (2)32 3 3 1503/4 53 N/A CF

37

Series

LOW PRESSURESTEAM BOILERSInclined Water Tube With Steam DrumLow NOx 20ppmPremix

Features• 20 ppm NOx (at 3% O2) based on factory high fi re testing• Pre-certifi ed to SCAQMD rule 1146.2 (models 12 to 50)• Capacities up to 2,000 MBTU/hr (47.8 B.H.P.)• ASME Boiler and Pressure Vessel Code Section IV stamped for 15 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF.• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers

Standard EquipmentBoiler• High temperature 2000 ºF cast refractory, 2 to 3 in. thick• 18 gauge galvanized steel jacket with air wall and head plate covers for low jacket temperatures• Steam and water sections, including tubesheets and removable headplates, are made from pressure vessel quality steel, from 3/8 to 3/4 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face headplate gaskets• Front headplate hand holes on models 50• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs

Combustion System• Ajax low NOx forced draft premix burners with Ajax fuel injectors and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulators1 and safety shut-off valve1

• Main gas valve1




Controls & Trim• Standard controls are CSD-1 compliant• Model 12 uses a 120 VAC / 60 Hz electronic primary safety control system with an interrupted pilot and on-off fi ring• Models 25 to 50 use a 120 VAC / 60 Hz electronic primary safety control systems with an interrupted pilot and on-off fi ring with low fi re start• Mechanical operating control and manual reset high limit control• Dual probe-type low water cut-off / pump control with automatic reset• Auxiliary low water cut-off with manual reset and water gauge glass• Combustion air switch• Main power, main fl ame and fl ame fail indicators

Model HRPGThe AJAX Series premix steam boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989, and is committed to meeting all clean-air requirements for today and into the future.

38

• Electronic microprocessor based fl ame safeguard control• UV scanner for fl ame detection• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, gas train and controls may be mounted on the left side of boiler• Pressure gauge and 15 psig ASME approved pressure relief valve

Optional EquipmentBoiler• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain and couplings. • I-beam skids on models 12 to 50• High and low gas pressure switch• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, fl oat-type low water cut-offs, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers




39

Series

MODEL1INPUT



MAWP)5


(GAL./HR)6


(SQ.FT.)

APPROX.WEIGHT

(LBS.)4WORKING

(GAL.)FLOODED

(GAL.)

HRPG-12 500,000 417,500 12.5 406 51 32 56 76 2,200HRPG-25 1,000,000 835,000 24.9 813 102 65 104 151 3,300HRPG-35 1,500,000 1,252,500 37.4 1,219 152 78 123 215 3,700HRPG-50 2,000,000 1,670,000 49.9 1,626 203 141 201 300 5,400


Specifi cations


NATURAL GAS1

ON-OFF HRPG-12 to 50 UL CSD-1/FM 8 to 14 in. W.C.ON-OFF HRPG-12 to 50 IRI 8 to 28 in. W.C.LHO, LHL HRPG-25 to 50 UL CSD-1/FM 9 to 14 in. W.C.LHO, LHL HRPG-25 to 50 IRI 9 to 28 in. W.C.

1 Additional “Lock-up” regulator must be furnished if maximum supply pressure exceeds maximum value.


Low Pressure Steam Boilers: 20ppm Low NOx Premix

40


In 1989, Ajax Boiler contracted with AGA Research Laboratory to evaluate advanced low NOx burner designs. Since that year Ajax Boiler has provided low NOx in California, Texas, Nevada, Utah and Washington State in increasing numbers. During the last several years, Ajax Boiler has developed its advanced premix 12 and 20 ppm NOx burner designs specifi cally for low NOx Ajax Series and Ace Series water heater. These simple, yet effective, designs have proven to be reliable over many years of service.


MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLETSIZE2

EOUTLET

SIZE2

FINLET / OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

BOTTOMBLOWOFF

VALVE SIZEHRPG-12 401/4 34 533/4 1 T 3 F 31/4 281/4 10 3 1 281/2 CL 14 1HRPG-25 551/2 371/2 613/4 11/2 T 4 F 41/4 331/4 14 3 1 403/4 CL 21 1HRPG-35 721/2 371/2 613/4 11/2 T 4 F 41/4 331/4 16 3 11/4 573/4 CL 24 11/4HRPG-50 681/2 461/2 68 11/2 T 6 F 51/4 403/4 18 3 11/2 493/4 CL 27 11/4

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, plenum or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Models 12 to 50 use one vent.4 Gas line size is for standard gas train and fi ring mode.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

E.T.L. Listed


C

A.S.M.E.

Dimensions

41

MODELSTANDARDVOLTAGES5

(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS.

HRPG-12 120/1/60 1/3 7.2HRPG-25 120/1/60 1/2 9.8HRPG-35 120/1/60 3/4 13.8HRPG-50 120/1/60 1 16.0

5 Other voltages available, consult factory for options.

Series

LOW PRESSURESTEAM BOILERSInclined Water Tube With Steam DrumUltra Low NOx 12ppmPremix

Features• 12 ppm NOx (at 3% O2) based on factory high fi re testing• Capacities up to 7,000 MBTU/hr (167.3 B.H.P.)• ASME Boiler and Pressure Vessel Code Section IV stamped for 15 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF.• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers

Standard EquipmentBoiler• High temperature 2000 ºF cast refractory, 3 in. thick• 18 gauge galvanized steel jacket with air wall and head plate covers for low jacket temperatures• Steam and water sections, including tubesheets and removable headplates, are made from pressure vessel quality steel, from 3/8 to 3/4 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face headplate gasket• Front headplate hand holes on all models• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs


Combustion System• Knit metal fi ber combustion surface for optimal effi ciency and durability• Fuel-air ratio valve for precise combustion control• Ajax fuel injectors and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulator1, safety shut-off valve1, main gas valve1, pilot gas valve1, and auxiliary gas valve1


Controls & Trim• Standard controls are CSD-1 compliant• All models use a 120 VAC / 60 Hz electronic primary safety control system with an interrupted pilot and high-low fi ring with low fi re start• Mechanical operating control and manual reset high limit control• Dual probe-type low water cut-off / pump control with automatic reset• Auxiliary low water cut-off with manual reset, water gauge glass• Combustion air switch and high and low gas pressure switches• Main power, main fl ame and fl ame fail indicators

Model HRLGThe AJAX Series premix steam boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989, and is committed to meeting all clean-air requirements for today and into the future.

42

Low NOx PremixAir Control Damper with Air Inlet FilterPhoto may vary from actual model

• Electronic microprocessor based fl ame safeguard control• UV scanner for fl ame detection• Proven low-fi re start, prevents unit from lighting off on high-fi re• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, controls and gas train mounted on right side of the boiler• Pressure gauge and 15 psig ASME approved pressure relief valve

Optional EquipmentBoiler• Mirror fi nish stainless steel jacket or painted jacket• Burner plenum, gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain and headplate couplings• I-beam skids on models 50 to 70• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, fl oat-type low water cut-offs, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers


Heat Exchangers• Heat exchangers may be mounted sidearm style on HR model boilers for indirect heating of water for shower, swimming pool, laundry, dishwashing, snow removal and other applications• Exchangers are available in capacities up to and including full capacity of the boiler with 150 psig working pressure design


43

Series

MODEL1INPUT



MAWP)5


(GAL./HR.)6


(SQ.FT.)

APPROX.WEIGHT

(LBS.)7WORKING

(GAL.)FLOODED

(GAL.)

HRLG-50 2,000,000 1,670,000 49.9 1,626 203 141 201 300 4,800HRLG-70 3,000,000 2,505,000 74.8 2,439 305 166 238 423 5,500HRLG-100 4,000,000 3,340,000 99.8 3,252 407 273 379 609 8,000HRLG-125 5,000,000 4,175,000 124.7 4,064 508 307 424 768 9,000HRLG-150 6,000,000 5,010,000 149.7 4,877 610 339 467 918 10,000HRLG-175 7,000,000 5,845,000 174.6 5,690 711 375 514 1,084 11,000


Specifi cations


NATURAL GAS1

HRLG-50 to 175 UL CSD-1/FM 8 to 14 in. W.C.HRLG-50 to 175 IRI 8 to 28 in. W.C.




HRLG-50 to 175 LOW-HIGH-LOW, MODULATION

Low Pressure Steam Boilers: 12ppm Low NOx Premix

44



The Ajax Series premix system is able to offer true ultra low NOx performance across the full range of fi ring via use of a fuel-air ratio valve, giving precise control for all fi ring rates. Since the combustion is precisely controlled, heat transfer effi ciencies increase as fi ring rate decreases, reducing the cost of operation.

E.T.L. Listed


C

A.S.M.E.

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLETSIZE2

EOUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

BOTTOMBLOWOFF

VALVE SIZEHRLG-50 681/2 46 685/8 11/2 T 6 F 51/4 363/4 18 81/2 11/2 493/4 CL 27 11/4HRLG-70 881/2 46 685/8 11/2 T 6 F 51/4 363/4 20 81/2 11/2 693/4 CL 30 11/2HRLG-100 981/4 55 817/8 2 T 8 F 63/4 45 (2)18 7 2 731/4 24 27 11/2HRLG-125 1171/4 55 817/8 2 T 8 F 63/4 45 (2)20 7 21/2 921/4 28 30 11/2HRLG-150 1351/4 55 817/8 2 T 8 F 63/4 45 (2)20 7 21/2 1101/4 34 33 11/2HRLG-175 1551/4 55 817/8 2 T 8 F 63/4 45 (2)22 7 21/2 1301/4 42 33 11/2

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, plenum or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Models 50 to 70 use one vent, 100 to 175 use two vents.4 Gas line size is for standard gas train and fi ring mode.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

Dimensions

45


(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS.

HRLG-50 120/1/60 1 16HRLG-70 230/3/60 11/2 6.0HRLG-100 230/3/60 2 6.8HRLG-125 460/3/60 3 4.8HRLG-150 460/3/60 5 7.6HRLG-175 460/3/60 71/2 11.0


Series

LOW PRESSURESTEAM BOILERSInclined Water Tube With Steam DrumForced Draft

Features• Capacities up to 12,600 MBTU/hr (301.1 B.H.P)• ASME Boiler and Pressure Vessel Code Section IV stamped for 15 psig maximum allowable working pressure (MAWP). Temperatures up to 250 ºF.• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795, U.L. 726 and CAN 1-3.1 standards for natural gas, #2 oil and combination gas / #2 oil

Standard EquipmentBoiler• High temperature 2750 ºF cast refractory, 2 1/2 to 4 in. thick• Refractory backed by minimum of 2 in. of insulating refractory and 3 in. of high temperature insulation• Hinged burner door on models 6 to 40• Removable front door and left-side manway on models 50 to 300• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Steam and water sections, including tubesheets and removable headplates, are made from pressure vessel quality steel, from 3/8 to 3/4 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face headplate gasket

• 2 in. inspection ports in rear headplate• Front headplate hand holes on models 50 to 300• Boiler legs with bolt-down lugs• I-beam skids on all models

Controls & Trim• Standard controls are CSD-1 compliant• E.T.L. / U.L. listed packaged assemblies with Power Flame™, Gordon Piatt™ and Webster™ burners for natural gas, #2 oil and combination gas / #2 oil• All forced draft burners receive a factory fi re test• Safety shut-off valve1

• Main gas valve1




• Electronic ignition• Manual gas shut off valves and leakage test cock(s)• Mechanical operating control and manual reset high limit control• Probe type low water cut-off with manual reset and water gauge glass• High and low gas pressure switches on models 70 to 300.• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 15 psig ASME approved pressure relief valve 1May be combined in one valve body.

Model HRFThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial building


46


Optional EquipmentBoiler• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Additional handholes, front headplate drain and headplate couplings• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation


Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Microprocessor based combustion controller• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• FM/IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers



O.E.M. Power Flame Type C BurnerPhoto may vary from actual model

47

Series

Specifi cations


The Ajax Series “H” boiler is an adaptation of Ajax Series “W” design providing drum construction for additional steam or water storage capacity.

Boilers are mounted on a rugged steel frame designed with expansion joints to resist thermal shock.

Constructed and Stamped to A.S.M.E. Code Section IV.

Low Pressure Steam Boilers: Forced Draft

MODEL1INPUT


STEAM OUPUT(LBS./HR. AT

MAWP)5


(GAL./HR)6


(SQ.FT.)

APPROX.WEIGHT

(LBS.)7WOKRING

(GAL.)FLOODED

(GAL.)HRF_68 250,000 208,750 6.2 203 25 25 44 38 2,700HRF_88 350,000 292,250 8.7 285 36 28 48 51 3,000HRF_10 420,000 350,700 10.5 341 43 30 52 62 3,300HRF_12 525,000 438,375 13.1 427 53 32 56 75 3,700HRF_15 630,000 526,050 15.7 512 64 36 62 94 4,100HRF_17 735,000 613,725 18.3 597 75 39 68 109 4,400HRF_20 840,000 701,400 21.0 683 85 42 72 125 4,700HRF_22 940,000 784,900 23.4 764 96 62 100 139 5,100HRF_25 1,050,000 876,750 26.2 854 107 65 104 154 5,300HRF_30 1,250,000 1,043,750 31.2 1,016 127 71 113 184 5,600HRF_35 1,500,000 1,252,500 37.4 1,219 152 78 123 218 6,100HRF_40 1,750,000 1,461,250 43.6 1,423 178 83 131 244 6,600HRF_50 2,100,000 1,753,500 52.4 1,707 213 141 201 304 8,400HRF_60 2,500,000 2,087,500 62.4 2,032 254 153 219 366 9,000HRF_70 3,000,000 2,505,000 74.8 2,439 305 166 238 427 9,500HRF_80 3,350,000 2,797,250 83.6 2,683 335 179 256 489 10,000HRF_90 3,770,000 3,147,950 94.0 3,065 383 261 363 549 14,900HRF_100 4,200,000 3,507,000 104.8 3,414 427 273 379 607 16,000HRF_125 5,250,000 4,383,750 131.0 4,268 534 307 424 766 17,100HRF_150 6,300,000 5,260,500 157.1 5,121 640 339 467 916 18,100HRF_175 7,350,000 6,137,250 183.3 5,975 747 375 514 1,082 19,500HRF_200 8,400,000 7,014,000 209.5 6,828 854 506 739 1,220 27,000HRF_225 9,500,000 7,932,500 237.0 7,722 966 545 795 1,390 28,400HRF_250 10,500,000 8,767,500 261.9 8,535 1,067 575 839 1,524 29,400HRF_275 11,500,000 9,602,500 286.9 9,348 1,169 610 891 1,683 30,800HRF_300 12,600,000 10,521,000 314.3 10,242 1,281 643 939 1,829 32,000

48

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 83.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 200 °F feed water temperature.6 Feeder pump should be sized to provide double the consumption rate.7 Estimated shipping weights. For weight-critical applications, consult factory.8 HRF_6 & 8 model is not available in 30ppm Low NOx.

E.T.L. Listed


C

A.S.M.E.

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Gas line size is for standard burner, gas train and fi ring mode.

SHIPPING DIMENSION: Length add 6 in. front (excluding burner legth which varies on model and manufacturer) and back, Width add 12 in. right side and 6 in. left side of the boiler.

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET SIZE2

EOUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

H JVENTSTUB

HEIGHT

KGASLINESIZE3

LTUBE

LENGTH

MVENTLOC.

BOTTOMBLOWOFF

VALVESIZE

RAINCAPSIZE

INDOORVENT DIA.

OUTDOORVENT DIA.

HRF_6 261/4 37 573/4 1 T 3 F 31/4 321/4 6 11 3 1 141/2 CL 1 17HRF_8 311/4 37 573/4 1 T 3 F 31/4 321/4 6 12 3 1 191/2 CL 1 181/2HRF_10 351/4 37 573/4 1 T 3 F 31/4 321/4 6 13 3 1 231/2 CL 1 20HRF_12 401/4 37 573/4 1 T 3 F 31/4 321/4 6 14 3 1 281/2 171/2 1 211/2HRF_15 471/4 37 573/4 1 T 3 F 31/4 321/4 8 14 3 1 351/2 171/2 1 211/2HRF_17 531/4 37 573/4 1 T 3 F 31/4 321/4 8 16 3 1 411/2 181/2 1 24HRF_20 591/4 37 573/4 1 T 3 F 31/4 321/4 8 16 3 1 471/2 181/2 1 24HRF_22 511/2 401/2 72 11/2 T 4 F 41/4 431/4 8 16 3 1 363/4 201/2 1 24HRF_25 551/2 401/2 72 11/2 T 4 F 41/4 431/4 10 18 3 1 403/4 201/2 1 27HRF_30 631/2 401/2 72 11/2 T 4 F 41/4 431/4 10 20 3 1 483/4 201/2 1 291/2HRF_35 721/2 401/2 72 11/2 T 4 F 41/4 431/4 10 20 3 11/4 573/4 211/2 11/4 291/2HRF_40 791/2 401/2 72 11/2 T 4 F 41/4 431/4 12 22 3 11/2 643/4 211/2 11/4 321/2HRF_50 681/2 491/2 801/4 11/2 T 6 F 51/4 53 12 22 3 11/2 493/4 241/2 11/4 321/2HRF_60 781/2 491/2 801/4 11/2 T 6 F 51/4 53 12 24 3 11/2 593/4 241/2 11/4 351/2HRF_70 881/2 491/2 801/4 11/2 T 6 F 51/4 53 14 20 3 2 693/4 251/2 11/2 291/2HRF_80 981/2 491/2 801/4 11/2 T 6 F 51/4 53 14 20 3 2 793/4 251/2 11/2 291/2HRF_90 911/4 611/2 83 2 T 8 F 63/4 521/2 16 22 3 2 661/4 30 11/2 321/2HRF_100 981/4 611/2 83 2 T 8 F 63/4 521/2 16 22 3 2 731/4 30 11/2 321/2HRF_125 1171/4 611/2 83 2 T 8 F 63/4 521/2 18 24 3 2 921/4 31 11/2 351/2HRF_150 1351/4 611/2 83 2 T 8 F 63/4 521/2 18 26 3 21/2 1101/4 31 11/2 38HRF_175 1551/4 611/2 83 2 T 8 F 63/4 521/2 20 26 3 21/2 1301/4 32 11/2 38HRF_200 1291/2 73 961/2 2 T 10 F 83/4 61 20 26 3 3 1003/4 35 2 38HRF_225 1431/2 73 961/2 2 T 10 F 83/4 61 24 28 3 3 1143/4 36 2 41HRF_250 1541/2 73 961/2 2 T 10 F 83/4 61 24 30 3 3 1253/4 37 2 44HRF_275 1671/2 73 961/2 2 T 10 F 83/4 61 26 30 3 3 1383/4 38 2 44HRF_300 1791/2 73 961/2 2 T 10 F 83/4 61 26 32 3 3 1503/4 38 2 461/2

Dimensions

E.T.L. Listed


C

A.S.M.E.


HRF_6 to 50 ON-OFF / LOW-HIGH-LOW / MODHRF_60 to 150 LOW-HIGH-OFF / LOW-HIGH-LOW / MODHRF_175 to 300 MODULATION

49

Series

HIGH PRESSURESTEAM BOILERSInclined Water Tube With Steam DrumAtmospheric

Features• Capacities up to 12,600 MBTU/hr (301.1 B.H.P.)• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP). Temperatures up to 365 ºF.• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers or draft hoods

Standard EquipmentBoiler• High temperature 2000 ºF cast refractory, 2 to 3 in. thick• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Steam and water sections, including tubesheets and removable headplates, are made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs• I-beam skids on boiler models 90 to 300


• Main gas valve1



• Electronic ignition• Manual gas shut-off valves and leakage test cock(s)• Main gas pressure regulator1

1May be combined in one valve body.

Controls & Trim• Standard controls are CSD-1 compliant• Models 6 to 60 use a 24 VAC / 60 Hz electronic primary safety control system with an intermittent pilot and on-off fi ring• Models 70 to 225 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and high-low fi ring• Models 250 to 300 use a 120 VAC / 60 Hz electronic primary safety control system with a microprocessor based fl ame safeguard control, an interrupted pilot and three stage fi ring• Mechanical operating control and manual reset high limit control• Probe type low water cut-off with manual reset and water gauge glass• High and low gas pressure switches on models 70 to 300• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler

Model SRNThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial building


50


Optional EquipmentBoiler• ASME approved pressure relief valves are available with 50, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• I-beam skids on models 6 to 80


Controls• 120 VAC / 60 Hz electronic primary safety control system with microprocessor based fl ame safeguard control and interrupted pilot on models 6 to 60• High-low fi ring on models 6 to 60• Modulating fi ring on models 6 to 225• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers

Heat Exchangers• Heat exchangers may be mounted sidearm style on SR model boilers for indirect heating of water for shower, laundry, dishwashing, swimming pool, snow removal and many other applications• Exchangers are available in capacities up to and including full capacity of the boiler with 150 psig working pressure design


51


E.T.L. Listed


C

A.S.M.E.

Series

Atmospheric Burner AssemblyPhoto may vary from actual model

Multiple burner heads make up the burner assembly, each with its own orifi ce. The cast iron burner head has long been recognized as the simplest, most trouble-free gas burner available. There is nothing to adjust, so there is nothing to get out of adjustment.

MODELSALL FIRING MODES NATURAL GAS PROPANE GAS

SRN_6 to 60 UL CSD-1/FM, IRI 7 to 14 in. W.C. 11 to 14" W.C.SRN_70 to 100 UL CSD-1/FM 8 to 14 in. W.C. 12 to 14" W.C.SRN_70 to 100 IRI 8 to 28 in. W.C. 12 to 28" W.C.SRN_125 to 225 UL CSD-1/FM, IRI 10 to 28 in. W.C. 16 to 28 in. W.C.SRN_250 to 300 UL CSD-1/FM, IRI 18 to 28 in. W.C. 24 to 28 in. W.C.




SRN_6 to 60 ON-OFF, HIGH-LOW, MODULATIONSRN_70 to 225 HIGH-LOW, MODULATIONSRN_250 to 300 3 STAGE

52


(120 VAC / 60Hz / 1 Phase)SRN_6 to 60 1SRN_70 to 100 4SRN_125 to 225 6.5SRN_250 to 300 8

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 82.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 200 °F feed water temperature.6 Feeder pump should be sized to provide double the consumption rate.7 Estimated shipping weights. For weight-critical applications, consult factory.* 9.5 B.H.P. “California Special” version available with 399,000 BTU/hr input and 100 psig MAWP.

Specifi cations

High Pressure Steam Boilers: Atmospheric

MODEL1INPUT



MAWP)5


(GAL./HR)6


(SQ.FT.)

APPROX.WEIGHT

(LBS.)7

BOTTOMBLOWOFF

VALVESIZE

RAINCAPSIZE

WORKING(GAL.)

FLOODED(GAL.)

SRN_6 250,000 206,250 6.2 197 25 25 44 38 1,800 1 17SRN_8 350,000 288,750 8.6 275 34 28 48 51 2,000 1 181/2SRN_10* 420,000 346,500 10.4 330 41 30 52 62 2,100 1 20SRN_12 525,000 433,125 12.9 413 52 32 56 75 2,400 1 211/2SRN_15 630,000 519,750 15.5 496 62 36 62 94 2,600 1 211/2SRN_17 735,000 606,375 18.1 578 72 39 68 109 2,800 1 24SRN_20 840,000 693,000 20.7 661 83 42 72 125 3,000 1 24SRN_22 940,000 775,500 23.2 739 92 62 100 139 3,300 1 24SRN_25 1,050,000 866,250 25.9 826 103 65 104 154 3,400 1 27SRN_30 1,250,000 1,031,250 30.8 983 123 71 113 184 3,600 1 291/2SRN_35 1,500,000 1,237,500 37.0 1,180 148 78 123 218 4,000 1 291/2SRN_40 1,750,000 1,433,750 43.1 1,377 172 83 131 244 4,300 11/4 321/2SRN_50 2,100,000 1,732,500 51.8 1,652 207 139 199 304 5,500 11/4 321/2SRN_60 2,500,000 2,062,500 61.6 1,967 246 152 217 366 5,800 11/4 351/2SRN_70 3,000,000 2,475,000 73.9 2,360 295 165 235 427 6,100 11/2 291/2SRN_80 3,350,000 2,763,750 82.6 2,596 325 177 254 489 6,400 11/2 291/2SRN_90 3,770,000 3,110,250 92.9 2,966 371 260 360 549 10,200 11/2 321/2SRN_100 4,200,000 3,465,000 103.5 3,304 413 273 377 607 10,400 11/2 321/2SRN_125 5,250,000 4,331,250 129.4 4,130 516 307 422 765 11,100 11/2 351/2SRN_150 6,300,000 5,197,500 155.3 4,956 620 339 464 915 11,700 11/2 38SRN_175 7,350,000 6,063,750 181.1 5,782 723 374 511 1,082 12,400 11/2 38SRN_200 8,400,000 6,930,000 207.0 6,608 826 506 739 1,220 17,900 2 38SRN_225 9,500,000 7,837,500 234.1 7,474 934 545 795 1,390 18,800 2 41SRN_250 10,500,000 8,662,500 258.8 8,260 1,033 575 839 1,524 19,500 2 44SRN_275 11,500,000 9,487,500 283.4 9,047 1,131 610 891 1,683 20,400 2 44SRN_300 12,600,000 10,395,000 310.5 9,912 1,239 643 939 1,829 21,200 2 461/2

53

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, inlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Models 6 to 60 use one vent, 70 to 300 use two vents. For indoor, atmospheric vents 18 in. or larger uses barometric dampers instead of draft hoods. For outdoor, use rain cap.4 Gas line size is for standard gas train and fi ring mode.CF - Consult factory for options and information, N/A - Not ApplicableSHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

E.T.L. Listed

A.S.M.E.


C

Dimensions

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLETSIZE2

EOUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

H JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.


NBAROMETRIC

DAMPER CLHEIGHT

INDOORVENT DIA.3

OUTDOORVENT DIA.3

SRN_6 261/4 34 54 1 T 11/2 T 31/4 281/2 7 11 3 3/4 141/2 CL 13 N/ASRN_8 311/4 34 54 1 T 11/2 T 31/4 281/2 8 12 3 3/4 191/2 CL 13 N/ASRN_10 351/4 34 54 1 T 11/2 T 31/4 281/2 9 13 3 3/4 231/2 CL 17 N/ASRN_12 401/4 34 54 1 T 11/2 T 31/4 281/2 10 14 3 1 281/2 CL 17 N/ASRN_15 471/4 34 54 1 T 11/2 T 31/4 281/2 10 14 3 1 351/2 CL 17 N/ASRN_17 531/4 34 54 1 T 11/2 T 31/4 281/2 12 16 3 1 411/2 CL 20 N/ASRN_20 591/4 34 54 1 T 11/2 T 31/4 281/2 12 16 3 1 471/2 CL 20 N/ASRN_22 513/4 371/2 62 1 T 21/2 T 41/2 333/4 12 16 3 1 363/4 CL 20 N/ASRN_25 553/4 371/2 62 1 T 21/2 T 41/2 333/4 14 18 3 1 403/4 CL 20 N/ASRN_30 633/4 371/2 62 1 T 21/2 T 41/2 333/4 16 20 3 11/4 483/4 CL 20 N/ASRN_35 723/4 371/2 62 1 T 21/2 T 41/2 333/4 16 20 3 11/4 573/4 CL 20 N/ASRN_40 793/4 371/2 62 1 T 21/2 T 41/2 333/4 18 22 3 11/4 643/4 CL N/A 27SRN_50 683/4 461/2 681/4 11/2 T 4 F 51/2 411/2 18 22 3 11/2 493/4 CL N/A 27SRN_60 783/4 461/2 681/4 11/2 T 4 F 51/2 411/2 20 24 3 11/2 593/4 CL N/A 30SRN_70 883/4 461/2 681/4 11/2 T 4 F 51/2 411/2 (2)16 (2)20 3 2 693/4 171/2 20 N/ASRN_80 983/4 461/2 681/4 11/2 T 4 F 51/2 411/2 (2)16 (2)20 3 2 793/4 171/2 20 N/ASRN_90 911/4 57 811/2 2 T 6 F 63/4 511/4 (2)18 (2)22 3 2 661/4 171/2 N/A 27SRN_100 981/4 57 811/2 2 T 6 F 63/4 511/4 (2)18 (2)22 3 2 731/4 171/2 N/A 27SRN_125 1171/4 57 811/2 2 T 6 F 63/4 511/4 (2)20 (2)24 3 21/2 921/4 171/2 N/A 30SRN_150 1351/4 57 811/2 2 T 6 F 63/4 511/4 (2)24 (2)26 3 21/2 1101/4 40 N/A 33SRN_175 1551/4 57 811/2 2 T 6 F 63/4 511/4 (2)24 (2)26 3 21/2 1301/4 42 N/A 33SRN_200 1291/2 69 881/2 2 T 6 F 83/4 53 (2)24 (2)26 3 3 1003/4 53 N/A CFSRN_225 1431/2 69 881/2 2 T 6 F 83/4 53 (2)24 (2)28 3 3 1143/4 53 N/A CFSRN_250 1541/2 69 881/2 2 T 6 F 83/4 53 (2)26 (2)30 3 3 1253/4 53 N/A CFSRN_275 1671/2 69 881/2 2 T 8 F 83/4 53 (2)26 (2)30 3 3 1383/4 53 N/A CFSRN_300 1791/2 69 881/2 2 T 8 F 83/4 53 (2)28 (2)32 3 3 1503/4 53 N/A CF

Series

HIGH PRESSURESTEAM BOILERSInclined Water Tube With Steam DrumLow NOx 20ppmPremix

Features• 20 ppm NOx (at 3% O2) based on factory high fi re testing• Pre-certifi ed to SCAQMD rule 1146.2 (models 12 to 50).• Capacities up to 2,000 MBTU/hr (47.8 B.H.P.)• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP). Temperatures up to 365 ºF.• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards• Negative vent stub pressure allows the use of type “B” vent and barometric dampers

Standard EquipmentBoiler• High temperature 2000 ºF cast refractory, 2 to 3 in. thick• 18 gauge galvanized steel jacket with air wall and head plate covers for low jacket temperatures• Steam and water sections, including tubesheets and removable headplates, are made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs

Combustion System• Ajax low NOx forced draft premix burners with Ajax fuel injectors and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulators1, safety shut-off valve1, main gas valve1, pilot gas valve1, auxiliary gas valve1, and electronic ignition• Manual gas shut off valves for each burner and leakage test cock(s)• Premix boilers receive a full factory fi re test1May be combined in one valve body.

Controls & Trim• Standard controls are CSD-1 compliant• Model 12 uses a 120 VAC / 60 Hz electronic primary safety control system with an interrupted pilot and on-off fi ring• Models 25 to 50 use a 120 VAC / 60 Hz electronic primary safety control systems with an interrupted pilot and on-off fi ring with low-fi re start• Mechanical operating control and manual reset high limit control• Dual probe-type low water cut-off / pump control with automatic reset• Auxiliary low water cut-off with manual reset, water gauge glass• Combustion air switch• Main power, main fl ame and pilot fail indicators• Electronic microprocessor based fl ame safeguard control• UV scanner for fl ame detection

Model SRPGThe AJAX Series premix steam boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989, and is committed to meeting all clean-air requirements for today and into the future.

54

• Proven low-fi re start (models 25 to 50), prevents unit from lighting of on high-fi re• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 150 psig ASME approved pressure relief valve

Optional EquipmentBoiler• ASME approved pressure relief valves are available with 50, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Burner plenum, gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• I-beam skids on models 12 to 50• Indoor models is available with weather cover*• High and low gas pressure switch * Models are ETL certifi ed for indoor operation

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Additional safety controls, indicators, and gauges• IRI compliant safety control systems• Auxiliary low water cut-off, fl oat-type low water cut-offs, pump controls and feeders• Industrial control package for process heating



55


20ppmLow NOx

Premix Retro-Fit Kit


Available on all 20ppm Low NOx

Premix Boilers.

Series

MODEL1INPUT



MAWP)5


(GAL./HR)6


(SQ.FT.)

APPROX. WEIGHT

(LBS.)7WORKING

(GAL.)FLOODED

(GAL.)

SRPG-12 500,000 417,500 12.5 393 49 32 56 76 2,400SRPG-25 1,000,000 835,000 24.9 787 98 65 104 154 3,400SRPG-35 1,500,000 1,252,500 37.4 1,180 148 78 123 218 4,000SRPG-50 2,000,000 1,670,000 49.9 1,573 197 139 199 304 5,500


Specifi cations


NATURAL GAS1

ON-OFF SRPG-12 to 50 UL CSD-1/FM 8 to 14 in. W.C.ON-OFF SRPG-12 to 50 IRI 8 to 28 in. W.C.LHO, LHL SRPG-25 to 50 UL CSD-1/FM 9 to 14 in. W.C.LHO, LHL SRPG-25 to 50 IRI 9 to 28 in. W.C.

1 Additional “Lock-up” regulator must be furnished by others if maximum supply pressure exceeds maximum values.


High Pressure Steam Boilers: 20ppm Low NOx Premix

56


In 1989, Ajax Boiler contracted with AGA Research Laboratory to evaluate advanced low NOx burner designs. Since that year Ajax Boiler has provided low NOx in California, Texas, Nevada, Utah and Washington State in increasing numbers. During the 12 and 20 ppm NOx burner designs specifi cally for low NOx Ajax Series and Ace Series water heater. These simple, yet effective, designs have proven to be reliable over many years of service.


E.T.L. Listed

A.S.M.E.


C

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLETSIZE.2

EOUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

BOTTOMBLOWOFF

VALVE SIZESRPG-12 401/4 34 54 1 T 11/2 T 31/4 281/2 10 3 1 281/2 CL 14 1SRPG-25 553/4 371/2 62 1 T 21/2 T 41/2 333/4 14 3 1 403/4 CL 21 1SRPG-35 723/4 371/2 62 1 T 21/2 T 41/2 333/4 16 3 11/4 573/4 CL 24 1SRPG-50 683/4 461/2 681/4 11/2 T 4 F 51/2 411/2 18 3 11/2 493/4 CL 27 11/4

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, plenum or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Sizes 12 to 50 use one vent.4 Gas line size is for standard gas train and fi ring mode.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

Dimensions

57


(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS.

SRPG-12 120/1/60 1/3 7.2SRPG-25 120/1/60 1/2 9.8SRPG-35 120/1/60 3/4 13.8SRPG-50 120/1/60 1 16


Series

HIGH PRESSURE STEAM BOILERS Inclined Water Tube With Steam DrumUltra Low NOx 12ppmPremix

Features• 12 ppm NOx (at 3% O2) based on factory high fi re testing• Capacities up to 7,000 MBTU/hr (167.3 B.H.P.)• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP). Temperatures up to 365 ºF• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795 and CAN 1-3.1 standards.• Negative vent stub pressure allows the use of type “B” vent and barometric dampers

Standard EquipmentBoiler• High temperature 2000 ºF cast refractory, 3 in. thick• 18 gauge galvanized steel jacket with air wall and head plate covers for low jacket temperatures• Steam and water sections, including tubesheets & headplates, are made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs• I-beam skids on boiler models 100 to 175

Combustion System• Knit metal fi ber combustion surface for optimal effi ciency and durability• Fuel-air ratio valve for precise combustion control• Ajax fuel injectors and gasless plenum• Low pressure blower• Air control damper and air inlet fi lter• Gas pressure regulator1


• Main gas valve1




Controls & Trim• Standard controls are CSD-1 compliant• All models use a 120 VAC / 60 Hz electronic primary safety control system with interrupted pilot and high-low fi ring with low-fi re start• Mechanical operating control and manual reset high limit control• Dual probe-type low water cut-off / pump control with automatic reset• Auxiliary low water cut-off with manual reset, water gauge glass

Model SRLGThe AJAX Series premix steam boilers boast the same advantages as other Ajax boilers: dependability, quiet operation and long life, while adding the environmental benefi ts of low NOx operation. Ajax has been a market leader in premix combustion since 1989 and is committed to meeting all clean-air requirements for today and into the future.

58

• Combustion air switch and high and low gas pressure switches• Main power, main fl ame and fl ame fail indicators• UV scanner for fl ame detection• Standard blower motors are single phase 120/230 VAC to 1 HP, three phase 230 or 460 VAC for 1-1/2 HP and above. Motor starter provided with all three phase motors• Burner plenum, controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 150 psig ASME approved pressure relief valve

Optional EquipmentBoiler• ASME approved pressure relief valves are available with 50, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• I-beam skids on models 50 to 70• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation

Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Additional safety controls, indicators and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating




59

Low NOx PremixAir Control Damper with Air Inlet Filter


Series



NATURAL GAS1

SRLG-50 to 175 UL CSD-1/FM 8 to 14 in. W.C.SRLG-50 to 175 IRI 8 to 28 in. W.C.



MODEL1INPUT



MAWP)5


(GAL./HR)6


(SQ.FT.)

APPROX.WEIGHT

(LBS.)7WORKING

(GAL.)FLOODED

(GAL.)

SRLG-50 2,000,000 1,670,000 49.9 1,573 197 139 199 304 5,500SRLG-70 3,000,000 2,505,000 74.8 2,360 295 165 235 427 6,300SRLG-100 4,000,000 3,340,000 99.8 3,147 393 273 377 609 9,800SRLG-125 5,000,000 4,175,000 124.7 3,934 492 307 422 768 10,800SRLG-150 6,000,000 5,010,000 149.7 4,720 590 339 464 918 11,800SRLG-175 7,000,000 5,845,000 174.6 5,507 689 374 511 1,084 12,800

Specifi cations


SRLG-50 to 175 LOW-HIGH-LOW, MODULATION

High Pressure Steam Boilers: 12ppm Low NOx Premix

60



The Ajax Series premix system is able to offer true ultra low NOx performance across the full range of fi ring via use of a fuel-air ratio valve, giving precise control for all fi ring rates.Since the combustion is precisely controlled, heat transfer effi ciencies increase as fi ring rate decreases, reducing the cost of operation.

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLETSIZE2

EOUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

HVENTDIA.3

JVENTSTUB

HEIGHT

KGASLINE SIZE4

LTUBE

LENGTH

MVENTLOC.

NBAROMETRIC

DAMPER CLHEIGHT

BOTTOMBLOWOFF

VALVE SIZESRLG-50 683/4 45 641/4 11/2 T 4 F 51/2 371/2 18 81/2 11/2 493/4 CL 27 11/4SRLG-70 883/4 45 641/4 11/2 T 4 F 51/2 371/2 20 81/2 11/2 693/4 CL 30 11/2SRLG-100 981/4 54 76 2 T 6 F 63/4 453/4 (2)18 7 2 731/4 24 27 11/2SRLG-125 1171/4 54 76 2 T 6 F 63/4 453/4 (2)20 7 21/2 921/4 28 30 11/2SRLG-150 1351/4 54 76 2 T 6 F 63/4 453/4 (2)20 7 21/2 1101/4 34 33 11/2SRLG-175 1551/4 54 76 2 T 6 F 63/4 453/4 (2)22 7 21/2 1301/4 42 33 11/2

E.T.L. Listed

A.S.M.E.


C

Dimensions

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, plenum or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Model 50 to 70 use one vent, 100 to 175 use two vents.4 Gas line size is for standard gas train and fi ring mode.SHIPPING DIMENSION: Length add 6 in. front and back, Width add 12 in. right side and 6 in. left side of the boiler.

61


(VAC/Ph/Hz)

BLOWERMOTOR

H.P.

BLOWERMOTORAMPS

SRLG-50 120/1/60 1 16SRLG-70 230/3/60 11/2 6.0SRLG-100 230/3/60 2 6.8SRLG-125 460/3/60 3 4.8SRLG-150 460/3/60 5 7.6SRLG-175 460/3/60 71/2 11


Series

HIGH PRESSURESTEAM BOILERSInclined Water Tube With Steam DrumForced Draft

Features• Capacities up to 12,600 MBTU/hr (301.1 B.H.P.)• ASME Boiler and Pressure Vessel Code Section I stamped for 150 psig maximum allowable working pressure (MAWP). Temperatures up to 365 ºF• Full access to combustion chamber, water and steam sections• Floating head design eliminates thermal shock• Tubes are easily replaced using common straight boiler tubing• Completely factory assembled and wired• All models are E.T.L. listed to U.L. 795, U.L. 726 and CAN 1-3.1 standards for natural gas, #2 oil and combination gas / #2 oil

Standard EquipmentBoiler• High temperature 2750 ºF cast refractory, 2 1/2 to 4 in. thick• Refractory backed by minimum of 2 in. of insulating refractory and 3 in. of high temperature insulation• Hinged burner door on models 6 to 40• Removable front door and left-side manway on models 50 to 300.• 18 gauge galvanized steel jacket with air wall for low jacket temperatures• Steam and water sections, including tubesheets and removable headplates, are made from pressure vessel quality steel, from 1/2 to 1 in. thick• 2 in. O.D. SA-178 grade-A steel tubes• Full face rubber headplate gaskets

• 2 in. inspection ports in rear headplate• Boiler legs with bolt-down lugs• I-beam skids on all models

Controls & Trim• Standard controls are CSD-1 compliant• E.T.L. / U.L. listed packaged assemblies with Power Flame™, Gordon Piatt™ and Webster™ burners for natural gas, #2 oil and combination gas / #2 oil• Safety shut-off valve1

• Main gas valve1




• Electronic ignition• Manual gas shut off valves and leakage test cock(s)• Mechanical operating control and manual reset high limit control• Probe-type low water cut-off with manual reset and water gauge glass• High and low gas pressure switches on models 70 to 300• Main power and main fl ame indicators• Controls and gas train mounted on right side of the boiler• Temperature-pressure gauge and 150 psig ASME approved pressure relief valve 1May be combined in one valve body.

Model SRFThe AJAX Series boilers perform dependably and quietly, providing commercial, institutional, and industrial building with space heating and process steam. Inclined tubes provide uniform heat transfer, resulting in high fuel economy and long boiler life.

62


Optional EquipmentBoiler• ASME approved pressure relief valves are available with 50, 75, 100, 125 and 150 psig set pressures• Mirror fi nish stainless steel jacket or painted jacket• Gas train and controls may be mounted on the left side of boiler• Front headplate drain and headplate couplings• Indoor models is available with weather cover* * Models are ETL certifi ed for indoor operation


Controls• Various motor voltages for foreign and domestic use• Control circuit transformer for stepdown from 230/460 VAC to 120 VAC• Microprocessor based combustion controller• Additional safety controls, indicators, and gauges• Auxiliary low water cut-off, pump controls and feeders• IRI compliant safety control systems• Industrial control package for process heating• Multiple communications options, multi-stage controller interfaces, advanced combustion controllers and PID fi ring rate controllers


O.E.M. Power FlameType C BurnerPhoto may vary from actual model

63

Series

1 Models shown are for natural gas or propane only. Not for installation on combustible fl ooring. For proper burner performance, a -0.02 to -0.04 in. W.C. stack draft is required (as measured 4 to 6 in. above the top of the boiler); the barometric damper (if provided) is to be set to maintain this draft. No down draft stack conditions are permitted.2 Based upon 1,000 BTU/ft³ natural gas at 0 to 2000 ft. elevation. Derates or burner modifi cations required for other heating values or higher elevations. Derate heater output by 4% for each 1000' above 2000 ft. elevation.3 Based upon 83.5% effi ciency per factory testing. Actual effi ciency can vary depending upon operating conditions.4 Based upon 33,480 BTU/hr output per B.H.P.5 Based upon 200 °F feed water temperature.6 Feeder pump should be sized to provide double the consumption rate.7 Estimated shipping weights. For weight-critical applications, consult factory.* 9.5 B.H.P. “California Special” version available with 399,000 BTU/hr input and 100 psig MAWP.

8 HRF_6 & 8 model is not available in 30ppm Low NOx.

Specifi cations


6-300 Horsepower. This boiler utilizes rectangular headers and multiple steam drums. Inclined tubes promote water circulation and proper steam fl ow. Boiler tubes are straight and removable head plate covers which allow visual inspection and mechanical cleaning of tubes.

Boilers are mounted on a rugged steel frame designed with expansion joints to resist thermal shock.

Constructed and stamped to A.S.M.E. Code Section I.


SRF_6 to 50 ON-OFF / LOW-HIGH-LOW / MODSRF_60 to 150 LOW-HIGH-OFF / LOW-HIGH-LOW / MODSRF_175 to 300 MODULATION

High Pressure Steam Boilers: Forced Draft

MODEL1INPUT


STEAM OUPUT(LBS./HR. AT

MAWP)5


(GAL./HR)6


(SQ.FT.)

APPROX.WEIGHT

(LBS.)7WOKRING

(GAL.)FLOODED

(GAL.)SRF_68 250,000 208,750 6.2 197 25 25 44 38 3,000SRF_88 350,000 292,250 8.7 275 34 28 48 51 3,200SRF_10* 420,000 350,700 10.5 330 41 30 52 62 3,300SRF_12 525,000 438,375 13.1 413 52 32 56 75 3,700SRF_15 630,000 526,050 15.7 496 62 36 62 94 4,100SRF_17 735,000 613,725 18.3 578 72 39 68 109 4,400SRF_20 840,000 701,400 20.9 661 83 42 72 125 4,700SRF_22 940,000 784,900 23.4 739 92 62 100 139 5,200SRF_25 1,050,000 876,750 26.2 826 103 65 104 154 5,300SRF_30 1,250,000 1,043,750 31.2 983 123 71 113 184 5,600SRF_35 1,500,000 1,252,500 37.4 1,180 148 78 123 218 6,200SRF_40 1,750,000 1,461,250 43.6 1,377 172 83 131 244 6,600SRF_50 2,100,000 1,753,500 52.4 1,652 207 139 199 304 8,400SRF_60 2,500,000 2,087,500 62.4 1,967 246 152 217 366 9,000SRF_70 3,000,000 2,505,000 74.8 2,360 295 165 235 427 9,500SRF_80 3,350,000 2,797,250 83.6 2,596 325 177 254 489 10,000SRF_90 3,770,000 3,147,950 94.0 2,966 371 260 360 549 15,600SRF_100 4,200,000 3,507,000 104.8 3,304 413 273 377 607 16,000SRF_125 5,250,000 4,383,750 131.0 4,130 516 307 422 765 17,100SRF_150 6,300,000 5,260,500 157.1 4,956 620 339 464 915 18,100SRF_175 7,350,000 6,137,250 183.3 5,782 723 374 511 1,082 19,300SRF_200 8,400,000 7,014,000 209.5 6,608 826 506 739 1,220 27,500SRF_225 9,500,000 7,932,500 237.0 7,474 934 545 795 1,390 28,900SRF_250 10,500,000 8,767,500 261.9 8,260 1,033 575 839 1,524 30,000SRF_275 11,500,000 9,602,500 286.9 9,047 1,131 610 891 1,683 31,400SRF_300 12,600,000 10,521,000 314.3 9,912 1,239 643 939 1,829 32,600

64

E.T.L. Listed

A.S.M.E.


C

Dimensions are in inches and are subject to production tolerances.1 Width does not include gas train, outlet or control assemblies.2 T = Threaded, F = Flanged. Flanged connections extend approximately 3 in. from the jacket.3 Gas line size is for standard burner, gas train and fi ring mode.SHIPPING DIMENSION: Length add 6 in. front (excluding burner length which varies on model and manufacturer) and back, Width add 12 in. right side and 6 in. left side of the boiler.

E.T.L. Listed

A.S.M.E.


C

Dimensions

MODEL

A

LENGTH

B

WIDTH1

C

HEIGHT

DINLET SIZE2

EOUTLET

SIZE2

FINLET /OUTLET

LOC.

GINLET

HEIGHT

H JVENTSTUB

HEIGHT

KGASLINESIZE3

LTUBE

LENGTH

MVENTLOC.

BOTTOMBLOWOFF

VALVESIZE

RAINCAPSIZE

INDOORVENT DIA.

OUTDOORVENT DIA.

SRF_6 261/4 37 573/4 1 T 11/2 T 31/4 321/2 6 11 3 1 141/2 CL 1 17SRF_8 311/4 37 573/4 1 T 11/2 T 31/4 321/2 6 12 3 1 191/2 CL 1 181/2SRF_10 351/4 37 573/4 1 T 11/2 T 31/4 321/2 6 13 3 1 231/2 CL 1 20SRF_12 401/4 37 573/4 1 T 11/2 T 31/4 321/2 6 14 3 1 281/2 171/2 1 211/2SRF_15 471/4 37 573/4 1 T 11/2 T 31/4 321/2 8 14 3 1 351/2 171/2 1 211/2SRF_17 531/4 37 573/4 1 T 11/2 T 31/4 321/2 8 16 3 1 411/2 181/2 1 24SRF_20 591/4 37 573/4 1 T 11/2 T 31/4 321/2 8 16 3 1 471/2 181/2 1 24SRF_22 513/4 401/2 721/4 1 T 21/2 T 41/2 433/4 8 16 3 1 363/4 201/2 1 24SRF_25 553/4 401/2 721/4 1 T 21/2 T 41/2 433/4 10 18 3 1 403/4 201/2 1 27SRF_30 633/4 401/2 721/4 1 T 21/2 T 41/2 433/4 10 20 3 1 483/4 201/2 1 291/2SRF_35 723/4 401/2 721/4 1 T 21/2 T 41/2 433/4 10 20 3 11/4 573/4 211/2 1 291/2SRF_40 793/4 401/2 721/4 1 T 21/2 T 41/2 433/4 12 22 3 11/2 643/4 211/2 11/4 321/2SRF_50 683/4 491/2 803/4 11/2 T 4 F 51/2 533/4 12 22 3 11/2 493/4 241/2 11/4 321/2SRF_60 783/4 491/2 803/4 11/2 T 4 F 51/2 533/4 12 24 3 11/2 593/4 241/2 11/4 351/2SRF_70 883/4 491/2 803/4 11/2 T 4 F 51/2 533/4 14 20 3 2 693/4 251/2 11/2 291/2SRF_80 983/4 491/2 803/4 11/2 T 4 F 51/2 533/4 14 20 3 2 793/4 251/2 11/2 291/2SRF_90 911/4 611/2 831/2 2 T 6 F 63/4 531/4 16 22 3 2 661/4 30 11/2 321/2SRF_100 981/4 611/2 831/2 2 T 6 F 63/4 531/4 16 22 3 2 731/4 30 11/2 321/2SRF_125 1171/4 611/2 831/2 2 T 6 F 63/4 531/4 18 24 3 2 921/4 31 11/2 351/2SRF_150 1351/4 611/2 831/2 2 T 6 F 63/4 531/4 18 26 3 21/2 1101/4 31 11/2 38SRF_175 1551/4 611/2 831/2 2 T 6 F 63/4 531/4 20 26 3 21/2 1301/4 32 11/2 38SRF_200 1291/2 73 961/2 2 T 6 F 83/4 611/4 20 26 3 3 1003/4 35 2 38SRF_225 1431/2 73 961/2 2 T 6 F 83/4 611/4 24 28 3 3 1143/4 36 2 41SRF_250 1541/2 73 961/2 2 T 6 F 83/4 611/4 24 30 3 3 1253/4 37 2 44SRF_275 1671/2 73 961/2 2 T 8 F 83/4 611/4 26 30 3 3 1383/4 38 2 44SRF_300 1791/2 73 961/2 2 T 8 F 83/4 611/4 26 32 3 3 1503/4 38 2 461/2

65

Series

Applications Include: Industrial processing, laboratory and bio-medical research facilities, hospitals, universities, offi ce buildings and building complexes, sterilization facilities, semi-conductor facilities, paper and pulp factories, laundries or applications with special steam requirements and also point-of-use steam needs.

UNFIRED STEAM BOILERSSteam • High-Temp Water • Thermal FluidsProcess Steam • Clean Steam • Pure Steam

Unfi red Steam BoilersAJAX boilers perform dependably and quietly, engineered to meet specifi c steam needs for industrial, institutional and commercial facilities. Quality U-tube bundles provide uniform heat transfer, resulting in high thermal effi ciency and long boiler life.

66

A.S.M.E.

Features• Properly sized, with horizontal, vertical, and compact Mini-Pack™ style boiler choice• Moisture separator for dry steam• Independent bolting for easy inspection and maintenance• Quality components for high performance and best value• Wide range of options available

Standard EquipmentTank• A.S.M.E. Section VIII Div I vessel• National Board registered• 50 psig design working pressure• Horizontal, carbon steel construction with internal steam separator• 12" x 16" manway on 42" diameter and larger tanks; inspection openings for below 42"• Lifting lugs• Process steam application

Tube Bundle• 150 psig design working pressure• SB-75 seamless copper U-tube• Single wall tubing• Removable bundle• Steel cap and tubesheet• Lifting straps or lugs

Support• Skid mounted horizontal tank with saddles

Controls• Pilot operated steam control valve• ASME pressure relief valve• Main T&P steam trap• Pressure gauge panel with high limit switch• Steam cap pressure gauge• Conductivity type feed water and level control

Insulation & Jacketing• Mirror fi nish stainless steel jacket• 2" insulation


Optional EquipmentTank• 150 psig design working pressure• Vertical & compact Mini-Pack™ style models available• Clean or Pure steam application with stainless steel construction

Tube Bundle• Copper, 90/10 cupro-nickel or 304/316 stainless steel tubing

Support• Vertical: skid mounted with pipe legs• Mini-Pack™ style: steel stand

Controls• Pneumatic, or electric control valve• Feed water solenoid valve• By-pass for feed water• Auxillary high water probe alarm• Bottom blow down system• Surface blow down system - Solenoid assembly with clock - TDS or conductivity blow down system• Relay contacts for BMS• 4-20mA transmission• ModBus capability• Secondary low water cut-off

Insulation & Jacketing• 3" insulation

Process SteamUnfi red steam boilers are used to protect fi red boilers from harmful chemicals in the return condensate, such as in pulp and paper processing. Unfi red steam boiler tube bundles and/or drum can be fabricated using materials that will be cost effective for the process steam condition. These can range from copper tube bundles and pressure vessel quality steel to tube bundles made from cupro-nickel or stainless steel tubing and drums fabricated with stainless steel.

Clean SteamClean steam unfi red steam boilers provide clean steam by using feed water that is free from boiler water treatment chemicals. Clean steam is used by the food industry for cooking and cleaning and is also used for many sterilization and humidifi cation applications.

Pure SteamMore and more applications are requiring ultra pure steam for sterilization in Bio-science research, pharmaceutical research and/or processing, medical sterilization and high-tech clean room humidity control.

Pure steam boilers are normally fabricated with special high quality stainless steel pressure vessel material and components to handle the aggressive feedwater used in these applications.

67

Series

Unfi red Steam Boilers

Level Control DrainFPT

CondensateOut

G

Steam Inlet

A

9”

FPTFeed Water Inlet

FPTBottom Blow Down

D

E

F

FPT Outlet

SteamSeparator

FLG Steam Outlet

6”

Lift Lug / strap2 Places

OVL

FPTSurface Blow Down

HORIZONTALPILOT-OPERATED

68

A.S.M.E.

TANKDIA.

SHELLLENGTH A D E F G OVL

18"

24 62 3 8 18 20 3636 74 3 8 18 20 4848 86 3 8 18 20 6060 98 3 8 18 20 72

24"

48 95 3 8 24 26 6360 107 3 8 24 26 7572 119 3 8 24 26 8784 131 3 8 24 26 99

30"

48 100 3 8 30 33 6660 112 3 8 30 33 7872 124 3 8 30 33 9084 136 3 8 30 33 10298 148 3 8 30 33 114

36"

48 106 3 8 36 39 6960 118 3 8 36 39 8172 130 3 8 36 39 9384 142 3 8 36 39 10598 154 3 8 36 39 117

42"

48 109 3 8 42 45 7260 121 3 8 42 45 8472 133 3 8 42 45 9684 145 3 8 42 45 10898 157 3 8 42 45 120

48"

48 112 3 8 48 51 7560 124 3 8 48 51 8772 136 3 8 48 51 9984 148 3 8 48 51 11198 160 3 8 48 51 123

54"

60 127 4 8 54 58 9072 139 4 8 54 58 10284 151 4 8 54 58 11498 163 4 8 54 58 126

60"

60 130 4 8 60 64 9372 142 4 8 60 64 10584 154 4 8 60 64 11798 166 4 8 60 64 129110 178 4 8 60 64 141

66"

60 133 4 8 66 70 9672 145 4 8 66 70 10884 157 4 8 66 70 12098 169 4 8 66 70 132110 181 4 8 66 70 144

72"

60 136 4 8 72 76 9972 148 4 8 72 76 11184 160 4 8 72 76 12398 172 4 8 72 76 135110 184 4 8 72 76 147

Standard Dimensions

Horizontal Tank Sizes

69

Series

A

6”

FPTSurfaceblow down

FPT Feed Water Inlet

OVL

SIDE VIEW DIM.FRONTVIEWDIM.

FPTBottom blow down

Level ControlDrain FPT

CondensateOut

SteamInlet

FPT Outlet

FLG Steam Outlet

Unfi red Steam Boilers

VERTICALPILOT-OPERATED

70

A.S.M.E.

TANKDIA.

SHELLLENGTH

FrontView

SideView A OVL

18"

24 25 473/8 11 3636 25 473/8 11 4848 25 473/8 11 6060 25 473/8 11 72

24"

48 31 597/8 11.5 6360 31 597/8 11.5 7572 31 597/8 11.5 8784 31 597/8 11.5 99

30"

48 37 677/8 14 6660 37 677/8 14 7872 37 677/8 14 9084 37 677/8 14 10298 37 677/8 14 114

36"

48 43 763/8 12.5 6960 43 763/8 12.5 8172 43 763/8 12.5 9384 43 763/8 12.5 10598 43 763/8 12.5 117

42"

48 49 823/8 16.5 7260 49 823/8 16.5 8472 49 823/8 16.5 9684 49 823/8 16.5 10898 49 823/8 16.5 120

48"

48 551/4 893/8 16 7560 551/4 893/8 16 8772 551/4 893/8 16 9984 551/4 893/8 16 11198 551/4 893/8 16 123

54"

60 611/4 953/8 14 9072 611/4 953/8 14 10284 611/4 953/8 14 11498 611/4 953/8 14 126

60"

60 671/4 1013/8 14 9372 671/4 1013/8 14 10584 671/4 1013/8 14 11798 671/4 1013/8 14 129

110 671/4 1013/8 14 141

66"

60 731/4 1073/8 15 9672 731/4 1073/8 15 10884 731/4 1073/8 15 12098 731/4 1073/8 15 132

110 731/4 1073/8 15 144

72"

60 791/2 1143/8 15.5 9972 791/2 1143/8 15.5 11184 791/2 1143/8 15.5 12398 791/2 1143/8 15.5 135

110 791/2 1143/8 15.5 147

Standard Dimensions

Vertical Tank Sizes

71

Series

HEAT EXCHANGERS &TUBE BUNDLESDouble-Wall and Single-Wall

Heat Exchangers & Tube BundlesAJAX exchangers perform dependably and quietly, offering a variety of water heating solutions. Quality U-tube bundles provide uniform heat transfer, resulting in high thermal effi ciency and long exchanger life.

72

Tube BundlesFeatures• Optimized design for best heat transfer performance in steam, water and HTW exchanger type heaters • Wide variety of models to suit your specific need: • Single wall or double wall tube bundle • 150, 250, or 400 psig working pressure design • Copper, cupro-nickel 90/10, or stainless steel tubing • Coil sizes from 4" up to 30" on selected models • Carbon steel or stainless steel tubesheet and cap

Double-Wall Tube BundlePhoto may vary from actual model

Fully visible 360º vented leak detection between tubesheets. A.S.M.E.

Heat ExchangersFeatures• Optimized design for best heat transfer performance in steam, water and HTW exchangers • Single wall and double wall tube bundles available

Standard EquipmentShell• ASME Section VIII Div I vessel• National Board registered• 150 psig design working pressure• Horizontal, carbon steel construction

Tube Bundle• 150 psig design working pressure• SB-75 seamless copper U-tube• Single wall tubing• Steel cap and tubesheet

Optional EquipmentTube Bundle• HTW applications• 0.049" wall copper, 90/10 Cupro-nickel 304 or 316L tubes• Double wall tubing• 304 stainless steel tube sheet and cap fl ange

Support• Saddles

Condensate Cooler / Feedwater ExchangerPhoto may vary from actual model

73

A.S.M.E.

Series

Heat Exchangers & Tube Bndles

74

NOMINALCOILSIZE

DIMENSION COMMONTO 2, 4, & 6 PASS 2-PASS 4-PASS 6-PASS

A F G K L M C D C D C D

*5 59/16 8 1 3 2 1 11/4 13/8 11/4 13/8 - -6 65/8 8 1 3 21/2 1 11/2 15/8 11/2 15/8 1 18 85/8 9 11/4 31/2 4 F 11/4 21/2 21/8 2 21/8 11/2 13/810 103/4 11 11/2 47/8 4 F 11/2 3 23/4 21/2 23/4 2 15/812 123/4 15 2 41/8 5 F 2 4 31/4 3 31/4 21/2 214 14 17 2 43/8 6 F 2 4 31/2 3 31/2 21/2 21/416 16 19 21/2 415/16 6 F 21/2 5 4 4 4 3 21/2

CAP/BONNET CONFIGURATIONCAP/BONNET CONFIGURATION

2-PASS 4-PASS 6-PASS

C

C

C

CC

C

DD

DK

Model SU - Service Water in Tubes with Steam in Shell

NOMINALCOILSIZE

HDouble-

Wall

J

*SU_0502__ 40 293/4*SU_0503__ 52 413/4*SU_0504__ 64 533/4*SU_0505__ 76 653/4*SU_0506__ 88 773/4*SU_0507__ 100 893/4SU_0602__ 421/4 281/2SU_0603__ 541/4 401/2SU_0604__ 661/4 521/2SU_0605__ 781/4 641/2SU_0606__ 901/4 761/2SU_0607__ 1021/4 881/2SU_0802__ 573/4 421/2SU_0803__ 683/4 531/2SU_0804__ 803/4 651/2SU_0804__ 933/4 781/2SU_0806__ 1043/4 891/2SU_0807__ 1163/4 1011/2SU_1002__ 621/4 431/2SU_1003__ 741/4 551/2SU_1004__ 861/4 671/2SU_1005__ 981/4 791/2SU_1006__ 1101/4 911/2SU_1007__ 1221/4 1031/2SU_1202__ 781/4 551/4SU_1203__ 901/4 671/4SU_1204__ 1021/4 791/4SU_1205__ 1141/4 911/4SU_1206__ 1261/4 1031/4SU_1207__ 1381/4 1151/4SU_1402__ 83 571/4SU_1403__ 95 691/4SU_1404__ 107 811/4SU_1405__ 119 931/4SU_1406__ 131 1051/4SU_1407__ 143 1171/4SU_1602__ 88 591/4SU_1603__ 100 711/4SU_1604__ 112 831/4SU_1605__ 124 951/4SU_1606__ 136 1071/4SU_1607__ 148 1191/4

Drawing shows rough dimensions only.Contact factory for specifi c information.

NOTE: “H” dimension is approximate. “C”, “D”, “L” & “M” are standard sizes, however, they should be sized to particular fl ow requirements. For longer or shorter models, consult factory.

Double-Wall

DOUBLE-WALL TUBELEAK DETECTION AREA

A

H

J

M

FG 3/4" L

3/4"

K


A

H

J

M

FG 3/4" L

3/4"

Single-Wall

K

NOMINALCOILSIZE

HSingle-

Wall

J

*SU_0502__ 39 293/4*SU_0503__ 51 413/4*SU_0504__ 63 533/4*SU_0505__ 75 653/4*SU_0506__ 87 773/4*SU_0507__ 99 893/4SU_0602__ 411/4 281/2SU_0603__ 531/4 401/2SU_0604__ 651/4 521/2SU_0605__ 771/4 641/2SU_0606__ 891/4 761/2SU_0607__ 1011/4 881/2SU_0802__ 561/2 421/2SU_0803__ 671/2 531/2SU_0804__ 791/2 651/2SU_0804__ 921/2 781/2SU_0806__ 1031/2 891/2SU_0807__ 1151/2 1011/2SU_1002__ 603/4 431/2SU_1003__ 723/4 551/2SU_1004__ 843/4 671/2SU_1005__ 963/4 791/2SU_1006__ 1083/4 911/2SU_1007__ 1203/4 1031/2SU_1202__ 763/4 551/4SU_1203__ 883/4 671/4SU_1204__ 1003/4 791/4SU_1205__ 1123/4 911/4SU_1206__ 1243/4 1031/4SU_1207__ 1363/4 1151/4SU_1402__ 811/4 571/4SU_1403__ 931/4 691/4SU_1404__ 1051/4 811/4SU_1405__ 1171/4 931/4SU_1406__ 1291/4 1051/4SU_1407__ 1411/4 1171/4SU_1602__ 86 591/4SU_1603__ 98 711/4SU_1604__ 110 831/4SU_1605__ 122 951/4SU_1606__ 134 1071/4SU_1607__ 146 1191/4

* 5" heat exchangers are equipped with flat heads instead of SE heads

A.S.M.E.

NOMINALCOILSIZE

DIMENSION COMMONTO 2, 4, & 6 PASS 2-PASS 4-PASS 6-PASS

A F G K L M C D C D C D

*5 59/16 8 3 35/8 2 2 11/4 13/8 11/4 13/8 - -6 65/8 8 3 315/16 21/2 21/2 11/2 15/8 11/2 15/8 1 18 85/8 9 51/2 45/8 4F 4F 21/2 21/8 2 21/8 11/2 13/810 103/4 11 51/2 47/8 4F 4F 3 23/4 21/2 23/4 2 15/812 123/4 15 6 51/2 5F 5F 4 31/4 3 31/4 21/2 214 14 17 7 63/16 6F 6F 4 31/2 3 31/2 21/2 21/416 16 19 7 67/16 6F 6F 5 4 4 4 3 21/2

Model WU - Service Water in Tubes with Water in Shell

Drawing shows rough dimensions only.Contact factory for specifi c information.

75


A

H

J

M

FG 3/4" L

3/4"

Single-Wall

K


DOUBLE-WALL TUBELEAK DETECTION AREA

A

H

J

M

FG 3/4" L

3/4"

Double-Wall

K

CAP/BONNET CONFIGURATIONCAP/BONNET CONFIGURATION

2-PASS 4-PASS 6-PASS

C

C

C

CC

C

DD

DD

NOMINALCOILSIZE

HDouble-

Wall

J

*WU_0502__ 351/2 251/4*WU_0503__ 471/2 371/4*WU_0504__ 591/2 491/4*WU_0505__ 711/2 611/4*WU_0506__ 831/2 731/4*WU_0507__ 951/2 851/4WU_0602__ 363/4 23WU_0603__ 483/4 35WU_0604__ 603/4 47WU_0605__ 723/4 59WU_0606__ 843/4 71WU_0607__ 963/4 83WU_0802__ 491/4 34WU_0803__ 611/4 46WU_0804__ 731/4 58WU_0804__ 851/4 70WU_0806__ 971/4 82WU_0807__ 1091/4 94WU_1002__ 523/4 34WU_1003__ 643/4 46WU_1004__ 763/4 58WU_1005__ 883/4 70WU_1006__ 1003/4 82WU_1007__ 1123/4 94WU_1202__ 68 45WU_1203__ 80 57WU_1204__ 92 69WU_1205__ 104 81WU_1206__ 116 93WU_1207__ 128 105WU_1402__ 703/4 45WU_1403__ 823/4 57WU_1404__ 943/4 69WU_1405__ 1063/4 81WU_1406__ 1183/4 93WU_1407__ 1303/4 105WU_1602__ 723/4 44WU_1603__ 843/4 56WU_1604__ 963/4 68WU_1605__ 1083/4 80WU_1606__ 1203/4 92WU_1607__ 1323/4 104

NOMINALCOILSIZE

HSingle-

Wall

J

*WU_0502__ 341/2 251/4*WU_0503__ 461/2 371/4*WU_0504__ 581/2 491/4*WU_0505__ 701/2 611/4*WU_0506__ 821/2 731/4*WU_0507__ 941/2 851/4WU_0602__ 353/4 23WU_0603__ 473/4 35WU_0604__ 593/4 47WU_0605__ 713/4 59WU_0606__ 833/4 71WU_0607__ 953/4 83WU_0802__ 48 34WU_0803__ 60 46WU_0804__ 72 58WU_0804__ 84 70WU_0806__ 96 82WU_0807__ 108 94WU_1002__ 511/4 34WU_1003__ 631/4 46WU_1004__ 751/4 58WU_1005__ 871/4 70WU_1006__ 991/4 82WU_1007__ 1111/4 94WU_1202__ 661/2 45WU_1203__ 781/2 57WU_1204__ 901/2 69WU_1205__ 1021/2 81WU_1206__ 1141/2 93WU_1207__ 1261/2 105WU_1402__ 69 45WU_1403__ 81 57WU_1404__ 93 69WU_1405__ 105 81WU_1406__ 117 93WU_1407__ 129 105WU_1602__ 703/4 44WU_1603__ 823/4 56WU_1604__ 943/4 68WU_1605__ 1063/4 80WU_1606__ 1183/4 92WU_1607__ 1303/4 104

* 5" heat exchangers are equipped with flat heads instead of SE heads

A.S.M.E.

Series

TANKSCondensate Return & Boiler Feed Systems Blow Down TanksExpansion TanksFlash Tanks

Condensate Return and Boiler Feed SystemsFeatures• Standard storage capacities 49 to 325 Gallons• Designed and sized for steam boilers 150 psig• Turbine or Centrifugal Pumps• Simplex, Duplex or Triplex Systems available

Standard Equipment• Quality carbon steel horizontal non-code storage tank• Simplex pump system• Close-coupled, bronze-fi tted turbine for high pressure system; centrifugal pump on low pressure system• Internal copper fl oat-operated feed water assembly • Site glass assembly with brass gauge valves• Temperature gauges • Suction and return piping with strainer and valves • Painted cape cod grey• Isolation valves• Water tight conduit• Vent connection on top of tank for atmospheric venting• Sturdy angle/channel base and stand• Lifting straps or lugs

Optional Equipment• Duplex or Triplex pump systems• Storage capacities up to 1,000 Gallons• 4" x 6" handhole• Pressure gauge on pump outlet• Steam sparge system with temperature control valve.• Sparge tube• Low water cut-off• Control panel, with hand-off auto switches, signal light, and magnetic motor starters• Low control alarm system, with alarm bells, feed tank low water alarm (probe type), low water light, and lead lag selection on multi-pump units

TanksAJAX tanks are designed and manufactured using only the highest quality materials for all boiler applications for over 40 years. All fabrication, welding, and testing are performed in strict accordance with ASME codes.

76

SIMPLEXMODEL

MAX.BOILER

H.P.

NOMINALGALLON

CAPACITYWEIGHT(LBS.)

ASF-010-040U-150 10 40 440ASF-025-040U-150 25 40 440ASF-050-090U-150 50 90 710ASF-070-090U-150 70 90 710ASF-080-090U-150 80 90 710ASF-100-120U-150 100 120 920ASF-125-140U-150 125 140 920ASF-150-185U-150 150 185 1,050

The last three digits of the model # will be 125 on low pressure steam.

Inlet

ControlPanel

ToBoiler

ToBoiler

DrainPlug

PumpStrainer

Piping

Temp.Gauge

IsolationBall Valve

Overfl ow

Lift Strap

CondensateReturn

Vent

Feed WaterFloat Assembly

Pump Return


All fi ttings on the tanks are spuds. Above illustration may vary from actual model or specifi cation.

Condensate Return and Boiler Feed System: DuplexCompletely Packaged For Trouble-Free Installation

77

A.S.M.E.

Series

Blow Down Tanks Standard Equipment• ASME coded, quality carbon steel vertical tank 150 psig• 18" to 36" diameter tanks available• Tank openings: • Blow down inlet with wear plate. • Cold water inlet • Vent • Clean out • Tank drain• 4" x 6" handhole and inspection opening for tank diameter 18" to 30"; 12" x 16" manway for tank diameter 36"• Lift strap or lugs• Unlined interior, shop primered exterior• 3 or 4 pipe legs couplings

Optional Equipment• Sight glass• Angle legs support• Pipe legs support

MODELCAPACITY

(GAL.)WEIGHT

(LBS.)

A

DIA.

BO.A.

LENGTH

CINSPECT.OPENING

LOC.

DHEADDEPTH

SB1803 49 31518"

48"6" 6"SB1804 62 380 60"

SB1805 75 445 72"SB2404 117 585

24"63"

6" 71/2"SB2405 140 680 75"SB2406 163 775 87"SB3004 190 785

30"66"

6" 9"SB3005 225 905 78"SB3006 260 1,025 90"SB3604 275 985

36"69"

12" 101/2"SB3605 325 1,130 81"SB3606 375 1,275 93"

NAME

PLATE

(pipe legs with pads shown)

CL

30°

45°

120°

2"

B

D

SIDE VIEW

BlowDown Inlet

TOP VIEW

Vent

Site Glass

A

HandHole or Manway

Cold IN

Outlet

C

InspectionOpening

Lift Lug

11/2"

2"

3"

FITTINGS

TANK ø INLET OUTLET VENT 18" 1" 11/2" 21/2" FLG 24" 11/4" 2" 3" FLG 30" 11/2" 21/2" FLG 4" FLG 36" 2" 3" FLG 5" FLG

Note: Blow Down tank diameters18" thru 30" have 4"x6" handhole and inspection opening.

Blow Down tank diameters36" have 12"x16" Manway.

Pick combination per row.

Dimensions & Capacity

Tanks

78

A.S.M.E.

Flash Tanks 125 PSIGStandard Equipment• ASME coded, quality carbon steel horizontal tank 125 psig at 390 ºF• Perforated pipe• 18" to 36" diameter tanks available• Inspection openings for tank diameter 18" to 30"; 12" x 16" manway for tank diameter 36"• Unlined interior, shop primered exterior

Expansion Tanks 125 PSIGStandard Equipment• ASME coded, quality carbon steel horizontal tank 125 psig at 390 ºF• 18" to 36" diameter tanks available• Site glass ready fittings• Unlined interior, shop primered exterior A

1"

4" 4"

1/2"

1/2"

G

E

B

F

D D

CC

A

1"

4" 4"

G

C

B

D

E E

F

2"

2"11/2"

2"

1"

CL

MODEL

NOMINALCAPACITY

(GAL.)WEIGHT

(LBS.)

ADIA.(OD)

BOAL

CINLET /

AIR

DINSP.

OPENING

ESHELL

F HEAD

GGAUGEGLASS

SX1803 49 125 18 48 3/4 11/2 36 6 111/2SX1804 62 150 18 60 3/4 11/2 48 6 111/2SX1805 75 175 18 72 3/4 11/2 60 6 111/2SX2403 94 180 24 51 1 2 36 71/2 151/2SX2404 117 215 24 63 1 2 48 71/2 151/2SX2405 140 250 24 75 1 2 60 71/2 151/2SX3004 190 335 30 66 11/2 2 48 9 211/2SX3005 225 385 30 78 11/2 2 60 9 211/2SX3006 260 435 30 90 11/2 2 72 9 211/2SX3604 275 462 36 69 2 2 48 101/2 251/2SX3605 325 536 36 81 2 2 60 101/2 251/2SX3606 375 610 36 93 2 2 72 101/2 251/2


MODEL

NOMINALCAPACITY

(GAL.)WEIGHT

(LBS.)

ADIA.(OD)

BOAL

CSHELL

DHEAD

EINSP.

OPENING

F

GSTEAMINLET

ST1803 49 128 18 48 36 6 11/2 3 2ST1804 62 153 18 60 48 6 11/2 3 2ST1805 75 178 18 72 60 6 11/2 3 2ST2403 94 183 24 51 36 71/2 2 3 2ST2404 117 218 24 63 48 71/2 2 3 2ST2405 140 253 24 75 60 71/2 2 3 2ST3004 190 338 30 66 48 9 2 3 2ST3005 225 388 30 78 60 9 2 3 2ST3006 260 438 30 90 72 9 2 3 2ST3604 275 465 36 69 48 101/2 2 3 2ST3605 325 539 36 81 60 101/2 2 3 2ST3606 375 613 36 93 72 101/2 2 3 2


A.S.M.E.

Note: ST1803 to ST1805: 1" ø perforated pipe. SCH. 40 12" LG with 4 slots, 3/16" wide, 2" apart. Close inside end. Thread outside end.ST2403 to ST3606: 2" ø perforated pipe. SCH. 40 20" LG with 7 slots, 3/16" wide, 2" apart. Close inside end. Thread outside end.

A.S.M.E.

79

Series

80

Heat Exchanger & Combustion Design• All copper and bronze piping • ASME Section IV H or HLW rated to 160 psig, 250ºF / 210ºF• Front removable heat exchanger• Variable speed combustion blower control and speed feedback signal for assured low fire light off and high fire pre and post purge• Sealed combustion chamber for increased efficiency, reduced emissions and multiple venting configurations• Low NOx, high efficiency knit metal fiber burner• Powerful blower allows up to 60 feet of equivalent vertical exhaust venting without adjustments (1 elbow = 10ft)• Honeywell Air-Fuel Ratio Valve and Venturi• Replaceable Air Intake Filter

Control Specification • Flame Safe Guard Controller with integrated operating, modulating & high limit safety controls• User interface LCD panel with 4 buttons display boiler status information including sequence, lockouts, alerts, setpoints, controlled temperatures and flame signal• 4 to 20mA signal input for remote modulation• Digital input for remote reset and time of day setback• Modbus RS485 communication allows access to operating, safety and burner data• Lockout and safety alerts history record contains up to 15 detailed snapshots of the system when lockout occurred• Dual PID Load Combination control system for Central Heat and DHW loop• Interrupted pilot with spark ignition & air cooled UV scanner for monitoring pilot & main flame• Two single element temperature sensors for: Inlet & Outdoor Temperature• Three dual element safety limit (UL 353) temperature sensors for: Outlet, Stack & DHW Temp.• Outdoor Reset Control with programmable heating curve

• Algorithm prioritization for burner demand (Central Heating, DHW and Frost Protection) and firing rate limit (Stack and Boiler Delta-T)• Programmable safety and boiler protection features for: Frost protection, Slow Start, Delta-T Limit, Stack T Limit, Boiler T Limit, and DHW T Limit• Pump control contacts for Central Heat, DHW & System Pumps w/ purge time control & frost protection (pump included as additional option)• Three levels of password protection for end user, installer/service engineer and manufacturer• Additional interlock terminals for Pre-Ignition, Recycle and Lockout Interlocks

Operator Interface (Optional) • Local Operator Interface color touch screen display allows advanced configuration settings, remote monitoring, fault history, diagnostics and trend analysis of each boiler• System Operator Interface color touch screen display allows advanced configuration settings, remote monitoring, fault history, diagnostics, trend analysis and lead lag sequencing control of each boiler on multiple boiler configuration system

Control Options (Optional)• Communication Gateway Package • Remote Enable Relay• Annunciation Lamp Package • Boiler Status Relay• SPDT Fault Relay • Sensor Package• Alarm Bell with Silencing Circuit

Jacketing and Installation• Standard stainless steel indoor • Hinged front and top access panels• Easy intallation with just a pallet jack• Stainless steel or galvanized outdoor (Optional) • Red powder-coat with brushed aluminum door (Optional)

HIGH EFFICIENCYCONDENSING BOILERS• Up to 97% Thermal Effi ciency • Seven Models from 0.5 to 3.0 MBTU input• Up to 7.5:1 Turndown• Single Pass Copper Finned Heat Exchanger• Air Cooled Interrupted Pilot w/UV Scanner• Full modulation, Consistent Emissions with NOx <9 ppm and Clean Light Off• Small Footprint

Atlas Series ModelThe Atlas Series condensing boilers perform dependably and quietly, offering the highest effi ciency solutions for space heating, domestic and process hot water, low temperature applications such as snow melting, pool heating and low temp building loops. Modular design, low emmissions, advanced controls, and easy start-up make the Atlas Series the clear choice for all your high effi ciency needs.

81

Optional red powder jacket and brushed aluminum door

1Based on 50ºF inlet water at 50GPM. Actual effi ciency may vary with operating conditions.2Based on 50ºF inlet water at 100GPM. Actual effi ciency may vary with operating conditions.All dimensions are inches are approximate and subject to change. For weight critical application, consult factory.

Specifi cations

SPECIFICATIONS A050 A075 A100 A150 A200 A250 A300

Input (BTU/hr) 500,000 750,000 1,000,000 1,500,000 2,000,000 2,500,000 3,000,000

Output (BTU/hr) @ 50ºF Input 470,000 705,000 940,000 1,410,000 1,880,000 2,350,000 2,820,000

Dimension (W x D x H) 29"x34"x41" 29"x34"x48" 29"x34"x54" 29"x34"x69" 34½"x39"x70" 34½"x39"x79" 34½"x39"x88"

Footprint (Sq.ft.) 6.85 6.85 6.85 6.85 9.35 9.35 9.35

Recommended Flow Rate 50 gpm 50 gpm 50 gpm 50 gpm 100 gpm 100 gpm 100 gpm

Pressure Drop 9 feet 12.5 feet 14 feet 15 feet 15 feet 17 feet 18 feet

Turndown1 3.5:1 5:1 7:1 7.5:1 6.5:1 7:1 7.5:1

NOx Emissions @ 3% 02 <9 ppm <9 ppm <9 ppm <9 ppm <9 ppm <9 ppm <9 ppm

Min. Inlet Water Temp. Req. NONE NONE NONE NONE NONE NONE NONE

Max. Equivalent Exhaust Venting 60ft. 60ft. 60ft. 60ft. 60ft. 60ft. 60ft.

Mountable on Combustible Flooring YES YES YES YES YES YES YES

Sealed Combustion Chamber YES YES YES YES YES YES YES

Pre-mix Combustion YES YES YES YES YES YES YES

Vent Size (Intake / Exhaust) 4" / 6" 4" / 6" 6" / 8" 6" / 8" 8" / 10" 10" / 12" 10" / 12"

Gas Connection Size 1" 1" 1" 1¼" 1¼" 1¼" 1¼"

Water Connection Size 2" 2" 2" 2" 2½" 2½" 2½"

Gas Pressure Required 5-14" WC 5-14" WC 5-14" WC 5-14" WC 5-14" WC 5-14" WC 5-14" WC

Firing Mode Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation

Condensing YES YES YES YES YES YES YES

Max. Thermal Effi ciency (25%) 97%1 97%1 97%1 97%1 97%2 97%2 97%2

Max. Thermal Effi ciency (100%) 94%1 94%1 94%1 94%1 94%2 94%2 94%2

Electrical Requirements 120V 60Hz 1Ph 120V 60Hz 1Ph 120V 60Hz 1Ph 120V 60Hz 1Ph 120V 60Hz 1Ph 120V 60Hz 1Ph 120V 60Hz 1Ph

Unit Weight (lbs) 590 685 770 840 1100 1350 1600

Series

Condensing Boilers

82

Dimensions

Atlas 2.0Atlas 2.5

Atlas 3.0

Air Intake

Hot Water OUT

C

Gas Inlet

B

A

DE

Cold Water INExhaust Vent

½" Condensate Drain

F

H

I

J

G

MODEL

A

WIDTH

B

DEPTH1

C

HEIGHT

DAIR

INTAKE

EGAS

INLET

FHOTOUT

GEXHAUST

VENT

HCOLD

IN

IHOTOUT

JDRAIN /

EXHAUSTEXHAUSTVENT DIA.

AIR INTAKE

VENT DIA.

WATERIN/OUT

DIA.

GASINLETDIA. WEIGHT2

A050 29" 34" 41" 35" 29" 23" 16" 11" 8" 14½" 6" 4" 2 1 590A075 29" 34" 48" 42" 36" 29" 16" 11" 8" 14½" 6" 4" 2 1 685A100 29" 34" 54" 48" 41" 36" 17" 11" 8" 14½" 8" 6" 2 1 770A150 29" 34" 69" 59" 53" 46" 17" 11" 8" 14½" 8" 6" 2 1¼" 840A200 34½" 39" 70" 58" 52" 45" 19" 13" 8" 17¼" 10" 8" 2½" 1¼" 1100A250 34½" 39" 79" 70" 60" 53" 20" 13" 8" 17¼" 12" 10" 2½" 1¼" 1350A300 34½" 39" 88" 79" 69" 62" 20" 13" 8" 17¼" 12" 10" 2½" 1¼" 1600

1 For shipping dimension, add a maximum of 15" for piping. All dimensions are inches. 2 Estimated shipping weights. For weight critical application, consult factory.

A front replaceable heat exchanger and clip-on jacket give access to all components, while the sealed combustion system allows for complete fl exibility in installation. The modular design allows for simple multiple unit installations, and the on-board controls are readily interfaced with various communications systems. The full-featured, dependable and economical performance of the Atlas Series makes it the ideal solution for all of your water heating needs.

Optional red powder jacket and brushed aluminum door

E.T.L. Listed


C

A.S.M.E.

LW

CSA Compliant

UL 795 Compliant

A.S.M.E.

83

Series

NOTES

Series

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The Ajax Boiler Factory limited warranty provides assurance that all products are free from manufactures defects at the time of shipment and meet specifi cations and performance described in the product literature. It is important to understand the difference between a factory warranty and an installed warranty. There are many factors that can occur to the products after they are shipped that the company has no control over and cannot fully verify. These include: 1. Hidden damage during the shipping 2. Handling damage 3. Damage during storage 4. Installation conditions 5. Other unknown variables in the system design, operations, maintenance, pulsation and vibrations.

The installed warranty is the responsibility of the architect, specifying engineer, contractor and or owner who jointly have control over the application, installation, location, operating and maintenance conditions. The AJAX BOILER INC. warranty excludes extended liabilities. Extended liability typically occurs when products are installed without proper drainage, fl ooding containment or when safety devices are not tested and repaired or replaced when needed. Product problems are often caused by the condition of the water, the lack of water treatment and or the improper treatment of the water, insuffi cient combustion air, improper draft conditions, bolts not re-tightened, pipes not fl ushed and cleaned of oil, metal chips, rags, vibration and pulsation etc. These are installation, operating and/or maintenance conditions that are beyond the seller’s responsibility and are not covered by the factory warranty, but may be covered by the installer’s warranty. The factory warranty covering company products is based upon extensive product development and testing. Combustion products under go certifi cation testing and approvals to Underwriters Laboratory standards. Auditing of the production of combustion products is conducted by a nationally recognized testing laboratory. Pressure vessel products are designed and manufactured to American Society of Mechanical Engineering (A.S.M.E.) and National Board (NB) Design standards. Design reviews, factory product manufacturing quality inspections and testing are carried out by a third party National Board authorized inspection agency. AJAX BOILER INC. products have proven themselves in service for over 85 years which indicates that the company products perform exceedingly well when normal installation, operating

and maintenance conditions exist. The following is a review from the terms and conditions of sale. Also included in paragraph two, below, is the AJAX BOILER INC. non-conformance policy.

1. AJAX BOILER INC. warrants its products against defective material and/or workmanship only. The warranty does not apply to operational failures, electrical failures, gasket leaks, and or other malfunctions caused by improper application, installation and or maintenance.2. It is the buyer’s responsibility to inspect and accept the product, when received, as conforming to their purchase order, specifi cations and approved drawings. All claims for non-conformance, errors, shortages, etc. must be made within 10 days after receipt of the shipment.3. AJAX BOILER INC. do not provide a warranty or guarantee, express or implied, in any manner, form, usage of trade, merchant-ability or fi tness which extend beyond the product description and quotation.4. AJAX BOILER INC. liability is limited to the factory repair or replacement of warranty failures, or non-conformance, upon the return of the product to the factory.5. AJAX BOILER INC. is not liable for any direct or consequential damages.6. The AJAX BOILER INC. warranty is based upon section 23161(2) of the uniform commercial code and is printed in the terms and conditions of sale which is referenced in every quotation, on the back of sales order acknowledgements and invoices. It is legally correct and is an industry standard policy.

THERMAL SHOCK In addition to our standard one (1) year warranty against defective parts and workmanship, AJAX BOILER INC. provides the following guarantee with all commercial hot water, forced circulation, space heating boilers: AJAX BOILER INC. guarantees this new boiler pressure vessel for ten (10) years after date of installation from damage due to thermal shock. Thermal shock occurs when cold makeup water, up to 150°F less than the boiler water outlet temperature, is added directly into the boiler while the boiler is operating within the normal temperature range from 140°F to 250°F with a temperature rise from 20°F to 40°F. This guarantee shall cover damage to the boiler tubes, tube headers, and tube sheets when such damage is attributed to unequal expansion, poor circulation and/or other causes quite often described as “thermal shock.” This guarantee does not cover damage or failures that can

85

be attributed to corrosion, condensation, scale, boiler treatment chemicals, dirt accumulation, low water conditions, or any other abnormal operating conditions. The liability of AJAX BOILER INC. is limited solely to the replacement of the complete pressure vessel, with tubes, if found by our inspection to be damaged by thermal shock. In no event shall AJAX BOILER INC. be held liable for replacement labor charges or for freight or handling charges.

AJAX BOILER INC. provides a limited warranty on its products aganst defective material and/or workmanship only. This limited warranty is not applicable to operational failures, electrical failures, gasket leaks, wear or malfunctions caused by improper application, installation, and/or maintenance.

The following Limited Warranty periods are from date of shipment: Boiler Pressure Vessels: One year.Carbon Steel Tank and Heat Exchanger Pressure Vessels: One year.Stainless Steel Tanks: Three years.Boiler Copper Fin Coils: Three years.High Effi ciency Condensing Boiler: One Year (Three years on Coil).Single-Wall or Double-Wall Tank/Exchanger Coils: One year.Single-Wall or Double-Wall Mini-Packs: One year.Atlas Series Condensing Boiler: One year.Linings: (Pro-Rated Warranty) Section VIII Tanks: Glass 36” dia. and above (fi ve years). Glass 30” dia. and under (one year). Cement (fi ve years). Prekrete (ten years). In Section IV Tanks: Glass (one year).Controls: Components manufactured by other than AJAX BOILER INC. such as controls, instruments, forced draft burner, etc., provided with the boilers and packaged products are not covered by the AJAX BOILER INC. Warranty. However, AJAX BOILER INC. extends to the customer the same warranty provided by the manufacturer to AJAX BOILER INC. The customer shall receive the full benefi ts of adjustments made to AJAX BOILER INC. by the manufacturer.

Any claim for adjustment under this limited warranty must be made within the warranty period. AJAX BOILER INC.’s liability shall be limited to factory repair

or, at AJAX BOILER INC.’s option, replacement of all parts which, upon test and examination by AJAX BOILER INC., prove to be defective material and or workmanship and within the above limited warranty. If required by AJAX BOILER INC., parts which are claimed to be defective must be promptly delivered to the AJAX BOILER INC. facility, transportation charges prepaid. This warranty does not cover the cost of labor, removal, or installation of the warranted item during the limited period. This warranty is limited to the above and applies only for the period set forth. AJAX BOILER INC. will not be liable for any loss damage, direct, incidental or consequential damages of any kind, whether based upon warranty, contract, negligence or strict liability and arising in connection with the sale, use or repair of the products. AJAX BOILER INC.’s maximum liability shall not exceed the contract price for the products or component claimed to be defective or unsuitable. AJAX BOILER INC. does not warrant the product’s merchantability or fi tness for any particular purpose and in no event shall be held responsible for any consequential damages.

For complete Limited Warranty conditions see Section G and H under terms and conditions of sale.

The brand and product names contained within are trademarks or registered of their respective holders. Performance, dimensions, specifi cations are effective with date of issue and are subject to change without prior notice. AJAX BOILER INC. maintains a policy of continuous improvements and therefore reserves the right to change specifi cation without notice. AJAX BOILER INC. cannot be responsible for errors in typography or photography.

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TABLE OF CONTENTS - IMEC Electro Mechanical …demo.imecmep.com/wp-content/themes/WpEngineering/pdf/AjaxSeries... · Ajax Boiler, Inc. designs and manufactures a comprehensive line