Comfort Cooling - Skil-Aire...PWA-120-V4-ECX Convertible Series - P DX - Air Handling Unit - B Condensing Unit - C DX - Evaporator Section - X Air Cooled - A Chilled Water - C Water

Comfort Cooling

• Fit Thru Standard Doors, Ideal For TenantFit-Out and Other Commercial Applications

• Self-Contained & Split, Vertical Floor Mounted• Cabinet Can be Split for Ease of Field Rigging• DX Air, Water, Glycol Cooled & Chilled Water Systems

Excellence In Ceiling Mounted AC and Environmental Control Systems800.625.7545 www.Skil-aire.com

Vertical A/C’s &Heat Pumps

4-20 Tons

Convertible- Vertical

engineering manual

CPG-CV16a

Convertible-Vertical™ Comfort Floor Mounted A/C’s, CPG-CV16a www. Skil-aire .com 1-800-625-75452

TOPIC PAGE(S)

Table of Contents 2

Model Nomenclature 2

Convertible-Vertical™ Comfort Series Overview 3

Available Air Pattern Configurations 4-5

Mechanical Data Performance / Technical Data 6-7

Electrical Data

Self-Contained Systems 7

Split Evaporators & Condensing Units 8

Physical Data Approximate Unit Shipping Weights 8

Guide Specifications

Standard Features 9-11

Optional Features 11-13

Dimensional Data

5-10 Ton, Air Cooled, Self-Contained 14

15-20 Ton, Air Cooled, Self-Contained 15

5-10 Ton, Water/Glycol Cooled Self-Contained& Chilled Water Systems 16

15-20 Ton, Water/Glycol Cooled Self-Contained& Chilled Water Systems 17

Remote Air Cooled Condensing Units 18

Remote Water/Glycol Cooled Condensing Units 19

Model Nomenclature

Skil-aire™. We Hang Around All The Best Places.

Do It Upright!

Table of Contents

PWA-120-V4-ECXConvertible Series - P

DX - Air Handling Unit - BCondensing Unit - C

DX - Evaporator Section - X

Air Cooled - AChilled Water - C

Water Cooled - WGlycol Cooled - G

Comfort - AHeat Pump - H

048 - Nominal 4 0 Ton060 - Nominal 5 0 Ton096 - Nominal 8 0 Ton120 - Nominal 10.0 Ton160 - Nominal 16.0 Ton240 - Nominal 20.0 Ton

V - Vertical

1 - 208-230/1/603 - 208-230/3/604 - 460/3/60

ECX - Economizer Coil

1-800-625-7545 www. Skil-aire .com Convertible-Vertical™ Comfort Floor Mounted A/C’s, CPG-CV16a

3

Convertible-Vertical™ Skil-aireTM Built to Last With Design FeaturesThat Assure Superior Performance andDependability in Any Application.

Flexible Control Options:

DigiSkil-100 & 200 MicroSkil-100 & 200

IAQ Comfort Solutions:• Electric, Hot Water, Steam or Heat Pump Heating• High Efficiency Air Filtration

Energy $aving Options:• Air-Side Economizer/Free-Cooling• ECX - Water/Glycol Side Economizer/Free-Cooling

Head Pressure Control:• Air Cooled - Low Ambient Damper Control

• Water/Glycol Cooled - 2 and 3-waystandard and high pressure regulatingvalve options

The Convertible-Vertical™, packaged or split air conditioners and heat pumps are available inDX - Air, Water, Glycol Cooled or Chilled Water configurations. Systems are available from 4 to20 tons and are the perfect compact solution for today’s tenant renovations and other commercialcomfort air conditioning applications.

High Static Belt-Drive Blowers:• Ducted Systems Available with

Up to 2.0” E.S.P.

Capacity Modulation:• Hot Gas Bypass

Select Accessories:• Condensate Pumps• Non-Fused Disconnects• Firestats• Smoke Detectors• Remote Water Detectors• And more ...!

FE

AT

UR

ES

& B

EN

EF

ITS


TOP Evaporator Air Discharge - 4 to 10 Tons

FRONT Evaporator Air Discharge - 4 to 10 Tons(Optional Configuration)

AIR PATTERNS: Convertible-VerticalTM

1-800-625-7545 www. Skil-aire .com Convertible-Vertical™ Comfort Floor Mounted A/C’s, CPG-CV16a 5

TOP Evaporator Air Discharge - 15 to 20 Tons

FRONT Evaporator Air Discharge - 15 to 20 Tons(Optional Configuration)

AIR PATTERNS: Convertible-VerticalTM


Nominal Tons 4.0 5.0 8.0 10.0 15.0 20.0

Model Size 048 060 096 120 180 240

DX - AIR COOLED @ 95°F Entering Condenser Air

80°F DB, 50% RH Total / Sensible MBH 52.1 / 36.4 64.0 / 45.9 93.3 / 67.9 125.0 / 94.0 188.8 / 136.1 237.1 / 175.3


AIR SOURCE HEAT PUMP HEATING CAPACITY @ 47°F DB & 17°F DB70°F DB / Indoor Air MBH 54.7 / 32.1 65.0 / 36.2 95.7 / 62.7 121.7 / 67.7 170.5 / 102.3 230.8 / 155.4

DX - WATER COOLED @ 85°F Entering Condenser Water

80°F DB, 50% RH

Total / Sensible MBH 56.7 / 39.3 69.5 / 49.3 106.1 / 74.4 132.0 / 97.6 212.4 / 145.7 265.2 / 186.9

75°F DB, 50% RH


DX - GLYCOL COOLED @ 110°F, 40% Entering Ethylene Glycol

80°F DB, 50% RH



COMMON FEATURES Evaporator Airflow - @ 0.8" E.S.P., Belt Drive Centrifugal

Discharge CFM 1,600 2,000 3,000 4,000 6,000 8,500

Fan Motor HP 3/4 Hp 1 Hp 3 Hp 5 Hp 5 Hp 7.5 Hp

Fan Dia (Qty.) IN (NO) 12 X 9 (1) 12 X 9 (1) 15 X 9 (1) 15 X 9 (1) 15 X 15 (2) 15 X 15 (2)

Evaporator Coil - Aluminum Fin, Copper Tube

Rows NO 4 4 3 3 4 4

Face Area FT2 4.1 4.1 8.2 8.2 14.4 14.4

Face Velocity FPM 392 490 367 490 415 588

Air Filtration - @ 40% NBS Dust Spot

Nominal Size (NO) IN (3) 16x25x2 (3) 16x25x2 (3) 16x25x2 (3) 16x25x2 (4) 20x30x2 (4) 20x30x2

Compressor - Heat Pump Duty Hermetic

(NO) HP (1) 4.0 (1) 5.0 (2) 4.0 (2) 5.0 (2) 8.0 (2) 10.0

Heat (Duct Mounted) - includes evaporator motor heat, (Optional)

CapacityMBH 55.5 55.5 55.5 75.5 75.5 75.5

KW 15.0 15.0 15.0 20.0 20.0 20.0

Stages NO 2 2 2 2 2 2

Connection Sizes Condensate Drain FPT IN 3/4 3/4 3/4 3/4 1 1

T E C H N I C A L D A T A : Convertible-Vertical

80°F DB, 50% RH



CHILLED WATER SYSTEMS @ 45°F Entering Water Temp.

Flow Rate GPM

Pressure Drop FT W.G.

Standard Value

7.5 10.0 18.0 30.0 44.0 55.0

2.2 3.9 7.6 8.4 11.0 16.3

2-way 2-way 2-way 2-way 2-way 2-way

15.0 20.0

180 240

FLA MCA MFS FLA MCA MFS

85.2 92.1 110 98.2 106.1 125

40.6 43.8 55 49.0 53.0 65

67.8 74.7 90 80.8 88.7 105

31.9 35.1 45 40.3 44.3 55

20.0 (two) 20.0 (two)

47.9 47.9

24.1 24.1


Nominal Tons 4.0 5.0 8.0 10.0 15.0 20.0

Model Size 048 060 096 120 180 240

DX - AIR COOLED CONDENSER DATA

Indoor, Centrifugal Air Cooled Condensing Unit Data - (PAA-V, PAH-V & CAA-V models)

DischargeCFM 2,500 3,200 4,000 6,000 9,000 13,000

IN ESP 1.0 1.0 1.0 1.0 1.0 0.5

Blower Motor HP 2 3 5 7.5 7.5 7.5

Fan Diameter (Qty.) IN (NO) 15 x 9 (1) 15 x 9 (1) 15 x 15 (1) 15 x 15 (1) 15 x 15 (2) 15 x 15 (2)

Blower Type Centrifugal Centrifugal Centrifugal Centrifugal Centrifugal Centrifugal

Coil Face Area FT2 6.7 6.7 9.3 9.3 17.5 17.5

Rows NO 4 4 5 5 5 5

DX - WATER COOLED CONDENSER DATA

Water Cooled Condenser Data - (PWA-V & CWA-V models)

Flow @ 85°F EWT GPM 12.6 14.3 23.0 28.6 51.3 64.0

Water Press. Drop FT WG 14.0 10.8 10.6 12.5 28.5 31.7

Water Reg. Valve 2-Way, 150 psig - factory installed, (3-way & High Pressure Valves are Optional)

Water IN/OUT MPT IN 1 1/4 1 1/4 1 1/4 1 1/2 2 2

DX - GLYCOL COOLED CONDENSER DATA

Glycol Cooled Condenser Data - @ 40% Ethylene Glycol (PGA-V & CGA-V models)

Flow @ 110°F EGT GPM 13.8 17.8 26.3 35.6 55.6 69.3

Glycol Press. Drop FT WG 14.5 16.0 13.8 18.0 32.2 36.3

Glycol Reg. Valve 2-Way, 150 psig - factory installed, (3-way & High Pressure Valves are Optional)

Glycol IN/OUT MPT IN 1 1/4 1 1/4 1 1/4 1 1/2 2 2

C o n d e n s e r D a t a

T E C H N I C A L D A T A : Convertible-Vertical

T y p i c a l E l e c t r i c a l D a t a See Notes 1-2 Below

(FLA = Full Load Amps / MCA = Min Circuit Amps / MFS = Min Fuse Size)Nominal Tons 4.0 5.0 8.0 10.0

Model Size 048 060 096 120

FLA MCA MFS FLA MCA MFS FLA MCA MFS FLA MCA MFS

PAA & PAH-V, Air Cooled

208/3/60 23.5 27.1 35 32.5 37.7 45 49.6 53.2 65 71.8 77.0 90

460/3/60 11.8 13.6 20 15.8 18.3 25 24.8 26.6 35 35.2 37.7 45

PWA & PWH-V, Water Cooled

208/3/60 17.7 21.3 25 24.5 29.7 35 36.6 40.7 50 54.4 59.6 70

460/3/60 8.9 10.7 15 11.9 14.4 20 18.3 20.1 25 26.5 29.0 35

67.8 74.7 90 80.8 88.7 105

31.9 35.1 45 40.3 44.3 55

17.7 21.3 25 24.5 29.7 35 36.6 40.7 50 54.4 59.6 70

8.9 10.7 15 11.9 14.4 20 18.3 20.1 25 26.5 29.0 35

PGA & PGH-V, Glycol Cooled

208/3/60

460/3/60

Electric Duct Heater (Optional) - Field Installed & Separately Powered

Capacity / Stages KW / (NO) 15.0 (two) 15.0 (two) 15.0 (two) 20.0 (two)

208/3/60 FLA 36.0 36.0 36.0 47.9

460/3/60 FLA 18.0 18.0 18.0 24.1

Notes:1) Refer to Page 8 for split system electrical data.2) Due to a policy of continuous improvement, Skil-aire reserves to the right to change specifications without notice and without incurring any liability. Always consult equipment name

plate for exact electrical requirements.

PCA-V, Chilled Water 208/3/60 460/3/60

3.41.7

4.32.1

1010

3.81.9

4.82.4

1010

17.48.7

21.810.9

2515

13.06.5

16.38.1

2015

13.06.5

16.38.1

2015

8.03.9

10.04.9

1510


T y p i c a l E l e c t r i c a l D a t a See Notes 1-2 Below

(FLA = Full Load Amps / MCA = Min Circuit Amps / MFS = Min Fuse Size)

Note:1) Due to a policy of continuous improvement, Skil-aire reserves the right to change specifications without notice and without

incurring any liability. Always consult equipment name plate for exact electrical requirements.2) High Static Blowers & ECX Option - Consult your local sales respresentative for High Static Blower Option and ECX

Economizer Coil Option blower motor and electrical data.

ELECTRICAL/PHYSICAL DATA: Convertible-Vertical

UNITSIZE

MODEL TYPEPAA-V &PAH-V BAA-V CAA-V XAA-V PWA-V &

PGA-VPWA &

PGA-V-ECXCWA &CGA-V PCA-V

048 900 700 525 800 850 1,250 525 700

060 925 725 550 825 875 1,275 550 725

096 1,200 900 720 1,050 1,100 1,550 720 900

120 1,225 925 735 1,075 1,125 1,675 735 925

180 1,900 1,200 1,140 1,650 1,750 2,360 1,140 1,200

240 2,100 1,250 1,260 1,750 1,850 2,450 1,260 1,250

A p p r o x i m a t e U n i t S h i p W e i g h t s

15.0 20.0

180 240

FLA MCA MFS FLA MCA MFS

67.8 74.7 90 80.8 88.7 105

31.9 35.1 45 40.3 44.3 55

13.0 16.3 20 17.4 21.8 25

6.5 8.1 15 8.7 10.9 15

72.2 79.1 100 80.8 88.7 105

34.1 37.3 45 40.3 44.3 55

Nominal Tons 4.0 5.0 8.0 10.0

Model Size 048 060 096 120

FLA MCA MFS FLA MCA MFS FLA MCA MFS FLA MCA MFS

XAA-( )-V

208/3/60 17.7 21.3 25 24.5 29.7 35 36.6 40.7 50 54.4 59.6 70

460/3/60 8.9 10.7 15 11.9 14.4 20 18.3 25 26.5 29.0 35

BAA-( )-V

208/3/60 3.4 4.3 10 3.8 4.8 10 8.0 10.0 15 13.0 16.3 20

460/3/60 1.7 2.1 10 1.9 2.4 10 3.9 4.9 10 6.5 8.1 15

CAA-( )-V

208/3/60 20.1 23.7 30 28.7 33.9 40 41.6 58.8 64.0 75

460/3/60 10.1 11.9 15 13.9 16.4 20 20.9 22.7 30 28.7 31.2 40

CWA-( )-V 208/3/60 460/3/60

45.2 55

20.1

CGA-( )-V

208/3/60

460/3/60

14.3 17.9 25

7.2 9.0 15

20.7 25.9 30

10.0 12.5 15

28.6 32.2 40 41.4 46.6 55 54.8 61.7 75 63.4 71.3 85

14.3 17.9 25 20.7 25.9 30 28.6 32.2 40 41.4 46.6 55 54.8 61.7 75 63.4 71.3 8514.4 16.2 20 20.0 22.5 30 25.4 28.6 35 31.6 35.6 45

7.2 9.0 15 10.0 12.5 15 14.4 16.2 20 20.0 22.5 30 25.4 28.6 35 31.6 35.6 45


1.0 GENERAL1.1 SUMMARYThese specifications describe requirements for an airconditioning system. The system shall be designed tomaintain temperature conditions within the specified room.The manufacturer shall design and furnish all equipment tobe fully compatible with the heat dissipation requirementsof the site.

The system shall be manufactured by Skil-aire, a divisionof Tithe Corporation, in Baltimore, Maryland U.S.A. Thesystem shall be approved and labeled by UnderwritersLaboratories, Inc. (UL). The system shall be New YorkCity MEA (MEA-386-90-E) and Chicago Code Approved.

1.2 DESIGN REQUIREMENTSThe comfort control system shall be a Skil-aire factoryassembled Convertible-Vertical™ model vertical floormounted system. The system shall be specifically de-signed for indoor installation, unless specified otherwise.

The system shall have a total cooling capacity of_________ BTUH and a sensible cooling capacity of_________ BTUH based on an entering air temperature of_____ °F DB and _____°F WB. The unit shall be suppliedwith _____ volt, _____ phase, _____ Hz electrical service.The system model number shall be _________________.

2.0 PRODUCTS2.1 STANDARD FEATURES / ALL

SYSTEMS

2.1.1 CABINETThe cabinet and access panels shall be fabricated fromsturdy heavy gauge galvanized steel. The panels shall belined with 2 lb. density thermal/acoustical insulation forwhisper quiet operation. Large recessed, removable sidepanels with quarter-turn fasteners shall provide ease ofinstallation, service and maintenance on the system.

Splittable for Ease of Rigging:The cabinet shall be modular in design to allow for easyfield break-down and reassembly of top evaporator andbottom condensing unit sections for rigging purposes. Asa standard, the system shall ship from the factory as aone piece unit.(Note: Optionally the Convertible-Vertical™ system can shipfrom the factory split for field assembly after rigging.)

2.1.2 BLOWER ASSEMBLIESBlowers shall be belt driven double-inlet, dynamicallybalanced with multiple forward curved blades mounted on asolid steel keyed shaft. A heavy-duty V-belt fan drive(sized for 200% of motor nameplate horsepower) withadjustable cast iron pulleys keyed and secured to theblower shaft shall be provided for adjusting fan speed tosystem requirements.

2.1.3 MOTOR ASSEMBLIESAll fan motors shall be permanently mounted, 1750 or3450 RPM, with overload protection. Motors shall havepermanently lubricated ball bearings and be resilientlymounted to an adjustable motor frame. Motor pulleys shallbe cast iron, keyed, with variable pitch design to allow forfield adjustment of specific airflow and static requirements.

2.1.4 AIR PATTERN - Top Evaporator DischargeThe system shall be configured for rear ducted or freereturn evaporator air intake and top ducted evaporator airdischarge. Packaged air cooled systems shall be config-ured for rear ducted same-face condenser air inlet andoutlet. Air inlet and outlet connections shall includefactory provided turned-out duct flanges for ease of fieldduct connection.(Note: Front Evaporator Air Discharge is optionally available.)

2.1.5 FILTERSThe system shall be provided with 2” extended surfacepleated disposable type filters rated for a 40% averagedust-spot efficiency and a MERV rating of 8. The filters shall be removable without shutting down the system.

2.1.6 ELECTRICAL CIRCUITSThe system shall be provided with a factory installed mainelectrical enclosure per NEC code requirements. A lowvoltage transformer with integral protection shall be pro-vided to supply 24 VAC to the control circuit. The 24 voltcontrol circuit terminal strips shall be clearly labeled forthermostat wiring and interlock. The fan motor(s), com-pressor and electric heater (if applicable) shall each havetheir own contactor. A float switch shall be provided in theevaporator section to sense a clogged condensate drainand shall shut the unit down to prevent water damage.

Self-Contained Systems: (single point power)Self-Contained systems shall be designed for single pointmain power connection.

Split DX Systems: (separate power)Split systems shall require separate main power suppliesto the evaporator and condensing unit sections. Theevaporator and condensing unit sections shall be electri-cally interlocked by a field wired 24 volt control signal.

2.2 DIRECT EXPANSION SYSTEMCOMPONENTS

2.2.1 EVAPORATOR COILSThe evaporator coil shall be quality construction of seam-less drawn rifled copper tube, mechanically bonded totempered aluminum fins with galvanized coil end plates.The coil shall have ____ sq. ft. face area, ____ rows deep.The coil shall be factory pressure tested and the refrigera-tion system sealed prior to shipment. A stainless steeldrain pan shall be provided to cover the entire coil area.

GUIDE SPECIFICATIONS: Convertible-VerticalTM


2.2.2 COMPRESSORSEach compressor shall be the heat pump duty scroll.Each compressor shall be mounted on vibration isolatorsand located in the condensing section out of the evapor-ator air stream. Each compressor shall be complete withreversible positive oil pump, charging and service ports,internal spring isolation, and discharge gas vibrationeliminator.

2.2.3 REFRIGERATION CIRCUITEach refrigeration circuit shall be pre-piped with type “L”refrigerant copper tubing. Each refrigeration circuit shallinclude, but not be limited to: expansion valve with externalequalizer and rapid bleed-through capacity. Features shallinclude filter dryer, sight glass, pressure fittings and highpressure/low pressure safety cutouts.

2.3 CHILLED WATER SYSTEMS

2.3.1 CHILLED WATER AIR HANDLERS(Models PCA-V)

The system shall be a chilled water air handling unit. Thechilled water coil shall be of quality construction of seam-less drawn rifled copper tube, mechanically bonded totempered aluminum fins with galvanized coil end plates.The coil shall be factory pressure tested. The coil shallhave ____ sq. ft. face area, ____ rows deep. A stainlesssteel drain pan shall be provided to cover the entire coilarea. The coil shall be controlled by a factory installed 2-way chilled water control valve. The coil shall be designedto distribute water into the entire coil face area. The coilshall be supplied with ____ °F entering water temperaturewith a ____ °F temperature rise. The coil shall require ____GPM of chilled water and the pressure drop shall notexceed ____ Ft. w.g.

2.4 STANDARD FEATURES - INDIVIDUALSYSTEMS

2.4.1 AIR COOLED SYSTEMS

2.4.1.1 AIR COOLED, SELF-CONTAINED(Models PAA-V)

The system shall be self-contained vertical floor mountedair conditioner with integral factory installed air cooledcondensing unit. The condensing unit shall be a beltdriven, centrifugal blower type. The condenser coil shall beconstructed of copper tubes and aluminum fins. Thecondenser coil shall be sized for full heat of rejection at95°F ambient and be capable of operation to ___ °F lowambient air temperature. The system shall be factorytested, charged with refrigerant, sealed prior to shipment.

2.4.1.2 DX - SPLIT EVAPORATOR WITH REMOTEOUTDOOR PROPELLER FAN AIR COOLEDCONDENSER(Models XAA-V / F)

The system shall be a split system with indoor verticalfloor mounted evaporator unit and remote outdoor propeller

fan condenser. The indoor evaporator section shall shallinclude, but not be limited to: evaporator coil, stainlesssteel condensate drain pan, adjustable belt-driven blower,blower motor, thermal expansion valve with externalequalizer, heat pump duty compressors, refrigerant servicevalves, refrigerant sight glass / moisture indicator, filterdrier, 24 volt terminal connection and 2” filters. The remotepropeller fan condenser shall include, but not be limited to:condenser coil rated for 95°F ambient, low rpm directdriven propeller fans and low ambient controls. Theevaporator and condenser sections shall ship with a dry-nitrogen holding charge ready for field refrigerant charging.

2.4.1.3 DX - AIR HANDLING UNIT ONLY(Models BAA-V)

The system shall be a vertical floor mounted split DX - AirHandling Unit designed for field connection to the specifiedremote condensing unit. The air handling unit shallinclude, but not be limited to: evaporator coil, stainlesssteel condensate drain pan, adjustable belt-driven blower,blower motor, thermal expansion valve with externalequalizer, refrigerant service valves, refrigerant sight glass /moisture indicator, filter drier, 24 volt terminal connectionand 2” filters.

2.4.1.4 INDOOR REMOTE CENTRIFUGAL BLOWERAIR COOLED CONDENSING UNIT(Models CAA-V)

The system shall be a vertical floor mounted indoor remoteair cooled condensing unit designed for field connection tothe specified DX Air Handling Unit. The condensing unitshall be a belt driven, centrifugal blower type. The con-densing unit shall be sized for full heat of rejection at 95°Fambient and be capable of operation to ___ °F low ambientair temperature. The condensing unit shall be factorytested, charged with refrigerant, sealed and prior toshipment.

2.4.2 WATER COOLED SYSTEMS

2.4.2.1 WATER COOLED, SELF-CONTAINED(PWA-V models)

The system shall be self-contained vertical floor mountedair conditioner with integral factory installed water cooledcondensing unit. Water cooled systems shall havecoaxial, counter flow liquid condensers with adjustable 2-way water regulating valves per circuit to maintain headpressure with condenser water flow. The unit shall require____ GPM of ___ °F water and have a maximum pressuredrop of ___ Ft. w.g.

2.4.2.2 REMOTE WATER COOLED CONDENSING UNIT(CWA-V models)

The system shall be a vertical floor mounted indoor remotewater cooled condensing unit designed for field connectionto the specified DX Air Handling Unit. Water cooledsystems shall have coaxial, counter flow liquid condenserswith adjustable 2-way water regulating valves per circuit to



maintain head pressure with condenser water flow. Theunit shall require ____ GPM of ___ °F water and have amaximum pressure drop of ___ Ft. w.g.

2.4.3 GLYCOL COOLED SYSTEMS

2.4.3.1 GLYCOL COOLED, SELF-CONTAINED(PGA-V models)

The system shall be self-contained vertical floor mountedair conditioner with integral factory installed glycol cooledcondensing unit. Glycol cooled systems shall havecoaxial, counter flow liquid condensers with adjustable 2-way glycol regulating valves to maintain head pressure withcondenser glycol flow. The unit shall require ____ GPMof ___ °F glycol and have a maximum pressure drop of ___Ft. w.g.

2.4.3.2 REMOTE GLYCOL COOLED CONDENSING UNIT(CGA-V models)

The system shall be a vertical floor mounted indoor remoteglycol cooled condensing unit designed for field connectionto a DX Air Handling Unit. Glycol cooled systems shallhave coaxial, counter flow liquid condensers with adjust-able 2-way glycol regulating valves per circuit to maintainhead pressure with condenser glycol flow. The unit shallrequire ____ GPM of ___ °F glycol and have a maximumpressure drop of ___ Ft. w.g.

2.4.3.3 DRY COOLER & SIMPLEX PUMP PACKAGE(FCPP models)

The drycooler shall be complete with field mounted expan-sion tank and aquastat to control fan motor operation. Thecoil shall have seamless copper tubes bonded to alumi-num fins for high transfer efficiency. The motor(s) shallhave permanently lubricated bearings with inherent over-load protection on 1 Phase motors and three coil overloadson 3 Phase motors.

The pump package shall include controls to operate thedrycooler and the pump. The pump package shall beenclosed in a weatherproof housing. The pump shall berated for ____ GPM at ____ Ft. of head, and operate on____ volt, ____ PH, 60 Hz.

2.5 OPTIONS

2.5.1 AIR COOLED CONDENSER - LOW AMBIENTCONTROL

2.5.1.1 0°F - LOW AMBIENT DAMPER(PAA, CAA Centrifugal Blower Condensing Units)

A low ambient inlet damper shall be provided for thecondenser section to allow operation to 0°F minimum airtemperature. The damper shall include an actuator that iscontrolled directly by the condensed liquid line pressure.The damper shall be field mounted with all control pipingfurnished by the installer.

2.5.1.2 0°F AMBIENT - FAN CYCLING(F Model Remote Propeller Fan Condensers)

Condenser fan cycling controls shall be factory installed toallow for low ambient condenser operation to 0°F minimumair temperature.

2.5.1.3 -20°F VARIABLE SPEED FAN(F Model Remote Propeller Fan Condensers)

Variable speed head pressure controls shall be factoryinstalled to allow for low ambient condenser operation to-20°F minimum air temperature.

2.5.2 WATER / GLYCOL COOLED -HEAD PRESSURE CONTROL VALVES

2.5.2.1 3-WAY WATER / GLYCOL HEAD PRESSURECONTROL VALVES (PWA & PGA Models)

Each refrigerant circuit’s head pressure shall be controlledby a factory provided 3-way water/glycol regulating valverated for 150 psig w.w.p.

2.5.2.2 350 PSI HIGH PRESSURE - WATER/GLYCOLHEAD PRESSURE CONTROL VALVES

Each refrigerant circuit’s head pressure shall be controlledby a factory provided high pressure rated ____(2 or 3) -waywater/glycol regulating valve rated for 350 psig w.w.p.

2.5.3 CONTROL OPTIONS

2.5.3.1 DigiSkil-100™: Remote Wall Mounted, Non-Programmable Digital Thermostat

A DigiSkil-100™ model remote wall mounted single stageheat / cool non-programmable thermostat with digitaldisplay shall be factory provided for field installation. Thethermostat shall include FAN AUTO-ON and COOL-OFF-HEAT selector switches.

2.5.3.2 DigiSkil-200™: 7-Day Programmable WallMounted Digital Heat / Cool Thermostat

A DigiSkil-200™ model remote wall mounted deluxe 7-dayprogrammable heat pump ready thermostat with digitaldisplay shall be factory provided for field installation. Thethermostat shall include FAN AUTO-ON, COOL-OFF-HEAT-EM (emergency heat), SET and PROG/MANselector switches.

2.5.3.3 MicroSkil-100™: Microprocessor with AlarmsThe system shall be provided with a MicroSkil-100™model Microprocessor based controller with Alarms.Centered in the remote wall mounted controller shall be agraphic LCD display with characters to show the operatingmode, time, set points and actual readings. The tempera-ture and humidity sensors shall be internal to the remotedisplay. The controller shall be capable of three differentset points: normal, temporary and night per day, 7 daysper week.



The controller shall include the following visual and audiblealarm indications (if applicable):

• High and Low Temperature• Dirty Filter• Sensor Failure• Common Alarm Failure

The controller shall include the following system operations(if applicable):

• Unit Operational Status Indication - Cooling, Heating• Fan - continuous or on demand• Auto-restart upon power loss• Remote stop/start connection• Short cycle protection• Cold start time delay• Heat pump operation with aux. heat

2.5.3.4 MicroSkil-200™, Advanced MicroprocessorController with Alarms

The system shall be provided with a MicroSkil-200™advanced microprocessor based controller with alarms.

Select Features/Benefits:• 4x20 Character Liquid Crystal

Alpha-numerical Display• User Configurable• Run-Time Hours• Current Unit Mode Status• Alarm Status• Digital & Analog Inputs / Outputs• Temperature Anticipation• Remote Stop / Start Contact• Summary Alarm Contact• Automatic or Manual (selectable)

Restart After Power Loss• Sequential Load After Restart• Recovery Delay• Compressor Short Cycle Timers• Cold Start Time Delay• Security Password Access• Self-Diagnostics• Service Mode

Unit Status DisplayThe control system shall display current unit functionsand room status (if applicable):

• Current Dry Bulb Temp Set Point• Current Relative Humidity Set Point• System ON/OFF• Cooling• Heating• Actual Room DB Temperature• Actual Room Relative Humidity

Alarm Conditions:Alarm conditions activate an audible and visual indicatorplus close a summary alarm dry contact connection. The

control system shall alert to the following alarm conditions(if applicable):

• High Temperature • Dirty Filter• Low Temperature • Smoke Detection• Firestat • Leak Detection• High Head Press • Sensor Failure• Loss of Air Flow • Summary Failure• Loss of Power

Digital & Analog Control Inputs / Outputs:The control system shall be capable of both digital (ON/OFF) and analog (proportional integral, PI) input and outputcontrol.

Select Options:• Multi-Unit Sequencing (Optional)• BMS Communications (Optional)

RS 485 Serial Port Connection: (Optional)An RS 485 Serial Port Connection shall be provided forremote communications to BSM and/or Modem.

2.5.4 HEAT OPTIONS

2.5.4.1 ELECTRIC DUCT HEATER(Field Installed)

The electric heat shall be a field installed duct heater withnichrome open wire elements, contactors and limit con-trols. The electric heater shall be UL approved. Theelectric heat shall have a capacity of ________ BTUH anda KW rating of ____ KW.

2.5.4.2 STEAM HEAT(Field Installed Steam Heat Coil Box & Valve)

A steam heating coil box and valve shall be provided forfield installation to the evaporator air inlet. The steamheating coil shall have copper tubes and aluminum finswith capacity of ________ BTUH with ____ Ft. w.g. steam.A factory provided 2-way steam control valve shall beprovided for field installation.

2.5.4.3 HOT WATER HEAT(Field Installed Hot Water Heat Coil Box & Valve)

A hot water heating coil box and valve shall be provided forfield installation to the evaporator air inlet. The hot waterheating coil shall have copper tubes and aluminum finswith a capacity of ________ BTUH when supplied with ____°F entering water temperature, ____ GPM at ____ Ft. w.g.A factory provided 2-way hot water control valve shall beprovided for field installation.

2.5.4.4 HEAT PUMP OPTION(PAH-V, PWH-V & PGH_V models)

The system shall include a factory installed heat pumpheating cycle including reversing valve, automatic defrostcycle (if appl.) and remote wall mounted temperaturecontroller with auxiliary heating control capability. Theheat pump mode heating capacity shall be _______ BTU/HR.



2.5.5 CONDENSATE PUMPA condensate pump shall be factory provided for fieldinstallation. The condensate pump shall have the capacityof____ GPH at ____ Ft. of head. The condensate pumpshall be complete with integral float switch, pump andmotor assembly, check valve and reservoir.

2.5.6 HOT GAS BYPASS(DX Systems)

Each refrigerant circuit shall be provided with a hot gasbypass system for evaporator freeze-protection andcapacity modulation during low load conditions.

2.5.7 VARIABLE AIR VOLUME (VAV) OPTION KITThe system shall be designed for evaporoator supply aircontrol for application with a variable air volume (VAV)system. The shall incorporate Skil-aire’s VAV Option Kitwhich shall include, but not be limited to:

• Variable Frequency Drive - factory installed• Static Pressure Sensor / Transducer - field installed• MicroSkil-200, Advanced Microprocessor Controller w/

Supply Air Control Algorithm• Circuit 1: Modulating (0-10 Vdc) Hot Gas Bypass• Circuit 2: Standard Hot Gas Bypass

2.5.8 MAIN POWER NON-FUSED DISCONNECTA main power non-fused disconnect shall be factoryprovided for field installation.

2.5.9 AIR SIDE ECONOMIZER(All Model Types)

The system shall be provided with an Air-Side Economizerto include factory provided and field installed air sideeconomizer mixing box and controls per the followingsequence of control:

On a call for cooling by the indoor space thermostat, theindoor fan and the economizer shall be energized. Theoutdoor air control shall determine whether the outdoor airis suitable for “free/economizer-cooling”. If the outdoor airis suitable, mechanical cooling shall be locked out by theoutdoor enthalpy control. The motor actuator shall beenergized, operating the outdoor air and the return airdampers. The motor actuator shall be regulated by themixed air sensor to maintain proper discharge air tempera-ture.

When outdoor air is not suitable for “free/economizer-cooling”, the Economizer shall be locked out and theoutdoor air damper shall maintain minimum position whilethe indoor fan is operating. Upon unit shutdown or powerloss, the spring return motor actuator shall close theoutdoor air damper.

The Economizer shall be automatically locked out duringthe heat mode (if applicable).

The Air Side Economizer shall include: prewired modulat-ing spring return motor actuator, compressor lockout,minimum position potentiometer, outdoor air control(enthalpy), mixed air sensor, multi-tap transformer anddamper linkage.

The Air-Side Economizer and Controls shall ship sepa-rately from the unit for field installation.(Note: Refer to supplemental Air Side Economizer dimen-sional data for more information.)

2.5.10 ECX - ECONOMIZER / FREE-COOLING CYCLE(Field Installed ECX Coil Box & Valves)

The system shall be provided with field installed externaleconomizer cooling coil box with field installed 3-waycontrol valve. The ECX coil shall be capable of providingrated sensible capacity without compressor operationwhen entering water/glycol fluid temperatures are 45°F orbelow.(Note: Please Consult your local sales representative fordimensional and upgraded blower motor requirements forECX option.)

2.5.11 COMPRESSOR SOUND JACKETS(Not Available with Crankcase Heater Option)

Acoustical compressor sound jactets shall be factoryinstalled. The sound jacket shall have a snap closuresystem for ease of removing and reinstallation duringmaintenance. The sound jacket shall have a NoiseReduction Coefficient (NRC) of 85 per ASTM C-423 and aSound Transmission Loss (STC) of 11 per ASTM E-90.


FRONT / RIGHT


4 to 10 Ton - (PAA, PAH-048, 060, 096 & 120-V)Air Cooled - Self-Contained Vertical A/C - Top Evap Discharge

4 to 10 Ton - (PAA, PAH-048, 060, 096 & 120-V)Air Cooled - Self-Contained Vertical A/C - Front Evap Discharge (Optional)

UNIT DIMENSIONS: Convertible-Vertical TM

4.75"

2.55"

1.69"

21.75"

17.38"19.0"

0.75"

32.0"56.5"

79.0"

48.0"

31.0"

EvaporatorAir Outlet

EvaporatorAir Inlet

ACCESSPANEL ACCESSPANEL

ACCESSPANEL(Electric Box)ACCESSPANEL

ACCESS

PANEL

ACCESS

PANEL

25.95"

17.93"

24.84"

53.0"(1 0" Duct Flange)

UtilityConnections

47.0"

FRONT / RIGHT REAR / LEFT


EvaporatorAir Inlet

CondenserAir Outlet

CondenserAir Inlet

CondensateDrain (3/4" FPT)


ACCESS

PANEL

ACCESS

PANEL

ACCESS

PANEL

ACCESS

PANEL

32.0"56.5"

79.0"

48.0"

31.0"

EvaporatorAir Inlet

25.95"

17.93"

24.84"

53.0"(1.0" Duct Flange)

47.0"

REAR / LEFT

EvaporatorAir Inlet

CondenserAir Outlet

CondenserAir Inlet


UtilityConnections

21.75"

17.38"

19.0"

1.44"

4.75"

2.55"

1.69"




15

15 to 20 Ton - (PAA, PAH-180 & 240-V)Air Cooled - Self-Contained Vertical A/C - Top Evap Discharge

15 to 20 Ton - (PAA, PAH-180 & 240-V)Air Cooled - Self-Contained Vertical A/C - Front Evap Discharge (Optional)


19.0"

21.75"

11.88"21.75"

9.9"


32.07"

11.63"

29.86"78.5"

ACCESSPANELACCESSPANEL

ACCESS

PANEL


ACCESS

PANELACCESSPANEL

ACCESS

PANEL

ACCESS

PANEL


CondenserAir Inlet

CondenserAir Outlet

EvaporatorAir Inlet


EvaporatorAir Inlet


UtilityConnections32.0"

82.0"

79.0"

48.0"

31.0"

1.83"

1.69"

ACCESSPANEL

CondensateDrain (1" FPT)


32.07"

11.63"

29.86"78.5"

ACCESS

PANEL

ACCESS

PANEL

REAR / LEFT

CondenserAir Inlet

CondenserAir Outlet

EvaporatorAir Inlet

UtilityConnections

1.83"

1.69"

ACCESS

PANEL


ACCESS

PANELACCESSPANEL

FRONT / RIGHT

EvaporatorAir Inlet

32.0"

82.0"

79.0"

48.0"

31.0"


19.0"

21.75"

21.75"

11.88"

9.9"

1.44"



FRONT / RIGHTConvertible-Vertical™ Comfort Floor Mounted A/C’s, CPG-CV16a www. Skil-aire .com 1-800-625-754516

4 to 10 Ton - (PWA, PGA, PCA-048, 060, 096 & 120-V)Water/Glycol Cooled & Chilled Water, Self-Contained - Top Evap Discharge

4 to 10 Ton - (PWA, PGA, PCA-048, 060, 096 & 120-V)Water/Glycol Cooled & Chilled Water, Self-Contained - Front Evap Discharge (Optional)


4.75"

2.55"21.75"

17.38"19.0"

0.75"

32.0"56.5"

79.0"

48.0"

31.0"


EvaporatorAir Inlet

ACCESSPANEL ACCESSPANEL


ACCESS

PANEL

ACCESS

PANEL

24.84"

UtilityConnections

47.0"



EvaporatorAir Inlet

Water/Glycol Condenseror Chilled Water Connections



ACCESS

PANEL

ACCESS

PANEL

ACCESS

PANEL

ACCESS

PANEL

32.0"56.5"

79.0"

48.0"

31.0"

EvaporatorAir Inlet

24.84"

47.0"

REAR / LEFT

EvaporatorAir Inlet


UtilityConnections

21.75"

17.38"

19.0"

1.44"

4.75"

2.55"

Water/Glycol Condenseror Chilled Water Connec ions




17

15 to 20 Ton - (PWA, PGA, PCA-180 & 240-V)Water/Glycol Cooled & Chilled Water, Self-Contained - Top Evap Discharge

15 to 20 Ton - (PWA, PGA, PCA-180 & 240-V)Water/Glycol Cooled & Chilled Water, Self-Contained - Front Evap Discharge (Optional)


19.0"

21.75"

11.88"21.75"

9.9"


32.07"

11.63"

29.86"78.5"

ACCESSPANELACCESSPANEL

ACCESS

PANEL


ACCESS

PANELACCESSPANEL

ACCESS

PANEL

ACCESS

PANEL


CondenserAir Inlet

CondenserAir Outlet

EvaporatorAir Inlet


EvaporatorAir Inlet



82.0"

79.0"

48.0"

31.0"

1.83"

1.69"

ACCESSPANEL



32.07"

11.63"

29.86"78.5"

ACCESS

PANEL

ACCESS

PANEL

REAR / LEFT

CondenserAir Inlet

CondenserAir Outlet

EvaporatorAir Inlet

UtilityConnec ions

1.83"

1.69"

ACCESS

PANEL


ACCESS

PANELACCESSPANEL

FRONT / RIGHT

EvaporatorAir Inlet

32.0"

82.0"

79.0"

48.0"

31.0"


19.0"

21.75"

21.75"

11 88"

9.9"

1.44"




4 to 10 Ton - (CAA-048, 060, 096 & 120-V)Indoor, Vertical Floor Mounted, Remote Centrifugal Blower Air Cooled Condensing Unit

15 to 20 Ton - (CAA-180 & 240-V)Indoor, Vertical Floor Mounted, Remote Centrifugal Blower Air Cooled Condensing Unit


ACCESS

PANEL

25.95"

17.93"


UtilityConnections

REAR / LEFT

CondenserAir Outlet

CondenserAir Inlet


ACCESS

PANEL

FRONT / RIGHT

32.0"56.5"

48.0"

RefrigerantConnections


32.07"

11.63"


ACCESS

PANELACCESSPANEL ACCESS

PANEL


CondenserAir Inlet

CondenserAir Outlet


82.0"

48.0"



4 to 10 Ton - (CWA/CGA-048, 060, 096 & 120-V)Indoor, Vertical Floor Mounted, Remote Water/Glycol Cooled Condensing Unit

15 to 20 Ton - (CWA/CGA-180 & 240-V)Indoor, Vertical Floor Mounted, Remote Water/Glycol Cooled Condensing Unit



ACCESS

PANEL ACCESS

PANEL

UtilityConnections


32.0"56.5"

48.0"

Water/Glycol CondenserConnections



ACCESS

PANELACCESSPANEL ACCESS

PANEL


UtilityConnections

Water/Glycol CondenserConnections


32.0"

82.0"

48.0"

Documents

Comfort Cooling - Skil-Aire...PWA-120-V4-ECX Convertible Series - P DX - Air Handling Unit - B Condensing Unit - C DX - Evaporator Section - X Air Cooled - A Chilled Water - C Water