Hi-Static Fan Coil Units with EC motor · Hi-Static. Fan Coil Units with EC motor. ... Ceiling suspended, exposed type with chilled water coils ... on/off type valves are used,

Range 600 cfm to 2100 cfm(285 l/s to 991 l/s)

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Hi-StaticFan Coil Unitswith EC motor

Standard andDistrict Cooling

SKM Fan Coil UnitsHi-Static FCU (EC)

2

Introduction

SKM Hi - Static Fan Coil Units with Electronically Commutated (EC) Motors are complete line of fan coil units designed to meet most air conditioning requirements. High quality units are available for installation in apartments and single or multiform offices, schools, clinics, and etc.

Units are available in (7) standard models to deliver from 600 cfm (285 l/s) to 2100 cfm (991 l/s) nominal air flow rate.

SKM Hi - Static Fan Coil Units with Electronically Commutated Motors rated in accordance to AHRI - 440 standards.

SKM Hi - Static Fan Coil Units with Electronically Commutated Motors are another premium international quality product from SKM.

Units are certified in accordance with AHRI - 440 standards and Coil performance certified in accordance with AHRI - 410 standards.

SKM provides qualified service and stock of replacement parts in all major cities of the G.C.C. countries, Egypt, Jordan, and Pakistan. See back cover for details or call SKM.

SKM Air Conditioning LLC

You name it.....We cool it

LegendThe following legends are used throughout this manual:

Ratings - DISTRICT COOLINGNominal Capacity Ratings ............ 13Air Flow Rates ............................... 14Capacity Ratings ......................... 16Control System Description ........... 22Selection ................................... 23Control Packages ........................ 23Valve Packages ............................ 23Ordering and Selection Procedure ... 24Dimensional Data .......................... 25Guide Specifications ........................ 27

Table of ContentsIntroduction ............................ 2Legend ................................ 2Nomenclature ....................... 3General Features .................... 4Component Features .................. 4Application Flexibility .................. 5Options .................................. 6Physical and Electrical Data ............ 7Ratings - STANDARDNominal Capacity Ratings .................. 7Air Flow Rates ................................ 8Capacity Ratings ............................ 10

AFR ...... Air Flow RateBEP ...... Baked Enamel Paintcfm ...... Cubic feet per minutedB ....... DecibelsEADB ....Entering Air Dry BulbEAWB ....Entering Air Wet BulbET ......... Evaporating TemperatureEWT ...... Entering Water TemperatureESP ...... External Static PressureFt .......... Total Capacity Factorftwg ...... Feet of Water GaugeFs ........ Sensible Capacity FactorGPM .... Gallons per minuteHz ........ Hertzinwg ......Inch of Water GaugekW ........ Kilowattskg ......... KilogramskPa ...... Kilo PascalsLADB ....Leaving Air Dry BulbLAWB ... Leaving Air Wet Bulb

lbs .........Pounds weight (British units)l/s ..........Liters per secondMBh ......000 BtuhNC ........ Noise CriteriaOD ........Outside DiameterPh .........PhasePa .........PascalsSC ........ Sensible CapacitySCCF....Sensible Capacity Correction

FactorSPL .......Sound Pressure LevelTC .........Total CapacityTCCF ....Total Capacity Correction FactorTR ........ Tons of refrigeration = 12 MBHUSgpm ..US Gallons per minuteV ...........VoltsWFR ..... Water Flow RateWTR ..... Water Temperature RiseWPD .....Water Pressure Drop

SKM reserves the right to change, in part or in whole the specifications of its Air Conditioning Equipment at any time in order to add the latest technology. Therefore, the enclosed information may change without any prior notice.



3

Notes:Hi-Static fan coil units with EC Motors manufactured by SKM, are available in two versions: DY Series (for standard applications) and DCY Series (for District cooling applications) are illustrated in the catalogue.

Nomenclature

FCU - DY P - 12 / 4 2 / W G EC Fan Coil Unit

Application DY : Direct Drive Standard Series DCY : Direct Drive District Cooling Series

Construction P : Ceiling suspended with plenum E : Ceiling suspended exposed Unit Size [Nom. x 100cfm]

Number of Rows Cooling Coil : 3, 4 or 6

Hot Water Coil : 0 or 1

Chilled Water Coil

Finish G : Galvanized Finish F : Painted Finish

EC : EC motor


4

General FeaturesSKM Hi - Static Fan Coil Units with EC Motors are designed and built in the Gulf to meet requirements of high sensible heat ratio, durability and minimum maintenance needs.

• High efficiency forward curved fan with EC motors for quiet operation. • Low power consumption. • Low fluctuation in room temperature and relative humidity and maintains good comfort level. • Less Noisy. • High efficiency coil with high efficiency wavy corrugated fins. • Manual air vent. • Heavy gauge galvanized casing and fan housing. • Insulated heavy gauge drain pan. • Isolating grommet for additional vibration isolation. • Quick electrical connections. • Easy for installation and maintenance.

Why EC Technology?

Electronically Commutated (EC) motors are permanent-magnet Brushless DC (BLDC) motors in which the motor runs on a DC voltage, but with a normal AC supply.

Advantages of EC motors over conventional AC motors are:

• High efficiency • Less power consumption and high energy savings • Integrated controller • Very simple connections • Quite operation • Eco friendly and suitable for green building concept

Component Features

Casing

Units are constructed from heavy gauge galvanized steel sheet complying with ASTM A653 and JIS-G3302 standards against corrosion. Units are with 12mm thick closed cell polyfoam insulation. Refer to page 5, Application Flexibility, for more details.

Options

• Double Skin Units [DSU] Recommended for all Hi-Static fan coil units, installed in

locations having a high temperature difference between supply air temperature and surrounding environment of the unit. This option is available for DYP and DCYP models only. Additional sound attenuation is achieved with double skinning.

• Stainless Steel (Grade 304) Outer Skin [USS]• Aluminum Outer Skin [UAL]• Stainless Steel Inner Skin [SIS] Only with DSU

• Aluminum Inner Skin [AIS] Only with DSU

• Inner Skin with Perforated Sheet [PIS]• 13mm thick fiber glass insulation [0SG] Density: 32kg/m3

PaintingFCUs are painted only for DYE and DCYE series. Ivory white (RAL 7032) as the standard color. All other series are painted when specified with option code [BEP].

Options• Marine Paint [MP] Includes Zinc-rich epoxy powder coating as primer coat and

polyester powder coating as a finish coat.

CoilsCooling and Heating coils are manufactured from seamless copper tubes mechanically bonded to high efficiency wavy corrugated Aluminum fins. Coils are factory leak tested by air pressure at 300 psig (2068 kPa) under water. Manual air vent is standard. Chilled water cooling coils are available in 3, 4 and 6 rows. Coil connections are plain tube extensions supplied LH or RH as required for chilled water.

Hot water coils, single row [CHW1] and double rows [CHW2], are available to meet a wide range of application requirements.

Coils are certified in accordance with AHRI Standard 410. Hi-Static fan coil units can be supplied with a maximum total of 6 rows/coil.

AHRI-410 Certification does not include the products which are certified under AHRI-440.

Options

• Aeris Guard Coil Coat [EFAA] Aeris Guard Coil Coat is a self-etching high performance

epoxy water based finish. For single dip coating there was no evidence of corrosion after exposure to 5% Neutral Salt Spray under AS233.32-1980 (ASTM B117) conditions over periods in excess of 3000 hours.



5

• Extended Drain Pan [EDP]• Auxillary Drip Lip [ADP] Heavy gauge zinc coated auxiliary drip lip supplied loose to

be fitted on the edge of the drain pan under the valves

Application Flexibility

1. DYP EC and DCYP ECCeiling suspended for concealed applications, includes a factory installed plenum. The plenum is lined with 12mm thick closed cell polyfoam insulation. Units are supplied with 1” cleanable filter, as standard.

Notes*DYP-EC and DCYP-EC Units up to 1500 CFM is coming under the scope of AHRI-440 Certification.

2. DYE EC and DCYE ECCeiling suspended, exposed type with chilled water coils includes a cabinet with removable access panels lined with 12mm thick closed cell poly foam insulation. Units are supplied with 1” cleanable filter. Units are painted with electrostatically applied polyster powder coat and supplied with supply and return air grilles as standard.

• Pre-coated Fins [EFAP] The pre-coating is hydrophobic polyurethane. Pre-coated fins

passed a 1000-hr, 5% salt spray test at 95°F (35°C) temperature and 95% RH, according to ASTM B117.

• Copper fins [EFC]• Copper fins with Aeris coating [EFCA]• Connections: Male [MPT], Female [FPT]• 5/8” OD Coils [OTD]• Automatic Air Vent [AAV]

Fan and Motor

Forward curved, double inlet, centrifugal fan with EC motors, conforming to the standard EN 61800-5-1. Fan casing is galvanized sheet steel and impeller is sendzimir galvanized sheet steel. Fan is mounted on electronically commutated (EC) motor with integrated controls. Motor is class B, insulated with Thermal Overload Protector (TOP) and wired internally. Maximum permissible ambient motor temperature is +80 deg. C and minimum of -40 deg. C. Control input is 0-10 VDC.

Basic Unit and Cabinet

Units are constructed from high gauge galvanized steel sheet complying with ASTM-A653 and JSIG-3302 for maximum protection against corrosion. On request, as option, electrostatic polyster powder coating on zinc coated galvanized and phosphatised panels are available. Ivory white (RAL 7032) is the standard color and other colors available as an option, on request.

Filter

FCUs are lined with synthetic media filter as standard. 1” (25mm) panel filter with Aluminum washable media used as an option [1AF], rated according to EN class G2.

Drain Pan

Fabricated from heavy gauge Zinc-coated steel sheets, painted irrespective of the type of finish for unit casing and insulated from outside by 4mm thick polyfoam insulation for a maximum protection against sweating and corrosion. Drain pan is extended to include coil, headers and U-bends. Drain connection 3/4” (19mm) OD is provided for removal of condensation.

Options

• Stainles Steel (Grade 304) Drain Pan [SDP] insulated from outside with 4mm thick polyfoam insulation.

Figure 1

DYF / DCYF

FREE RETURNFREE SUPPLY

RETURN AIR

WITH GRILL

GRILLSUPPLY

SUPPLY AIR

DYE / DCYE

DYP / DCYP

DYC / DCYC

SUPPLY

SUPPLY

SUPPLY

GRILL

GRILL

GRILL

SUPPLYGRILL

DUCTED

FREERETURN

RETURN AIR

RETURN AIR

RETURNFREE

RETURNFREE

RETURN AIR

Figure 2

DYF / DCYF

FREE RETURNFREE SUPPLY

RETURN AIR

WITH GRILL

GRILLSUPPLY

SUPPLY AIR

DYE / DCYE

DYP / DCYP

DYC / DCYC

SUPPLY

SUPPLY

SUPPLY

GRILL

GRILL

GRILL

SUPPLYGRILL

DUCTED

FREERETURN

RETURN AIR

RETURN AIR

RETURNFREE

RETURNFREE

RETURN AIR

Figure 3


6

Options and AccessoriesThe standard options available for Hi - Static fan coil units include:

Thermostat (CHTS)

Thermostat is wall-mounted decorative type, with large LCD and backlight. It is energy-efficient modulating thermostat for controlling of EC fan, operating on AC 24V with DC 0-10V outputs for valves and fan.

It is very important to note that cooling and heating electric valves should be modulating type, since thermostat is providing 0-10V output for cooling and heating valves.

In case, on/off type valves are used, please consult SKM during time of order (it may need to add relay converter to operate on/off valves).

NotesIf CHTS option is not ordered, then 0-10V DC signal for the fan and the required signals and controls for the valves to be provided by others. The unit comes with only junction box with motor connections, if CHTS option is not included.

Double Skin Units (DSU)

Recommended for all units installed in locations having a high temperature difference between supply air temperature and surrounding environment of the Hi - Static fan coil units. This option is available for DYP and DCYP models only. Additional sound attenuation is achieved with double skinning. Cold bridges are avoided fully in the sandwich construction. Perforated inner skin is available as an option.

Controls

Various options on valve packages and control systems are available. Eight (8) different valve packages are available factory installed or loose for field mounting along with (3) options on control packages. Full details of options available; see full write-up on page 22-24.

Ducted Return, Rear (DRR)

Available only for DYP and DCYP models. Refer to page 25.

Ducted Return, Bottom (DRB)

Available only for DYP and DCYP models. Refer to page 25.

Supply and Return Air Grille

Powder coated double deflection discharge grille (GDD) and single deflection return grille (RAG) available as option .This option is a standard feature in models DYE EC and DCYE EC.

Grills are powder coated to match color of unit, if option BEP is ordered.

UV Lamp with Section (UVL)

Control and Valve PackagesAvailable from Type 1 to type 8. Refer to page 22-24.



7

Physical and Electrical Data

Notes** Sound Pressure Level is based on DYP EC model, 4Rows, 0.2 inWg (50Pa) External Static Pressure, air entering temperature DB/WB 80°F/67°F (27°C/19.5°C), 45°F/55°F (7.2°C/12.8°C) entering /leaving chilled water temperature at maximum capacity. Sound Pressure Values are indicative only and may vary with actual site conditions.

** Weigt of Basic units are provided (Single skin casing + Fans + Coil Section 6 Row/12 fpi/Al fins + Filter section,1” Thick Flat Synthetic Media) **

For units with any additional option or sections, consult SKM for weight.

Physical & Electrical Data6 8 10 12 15 18 21

cfm 600 800 1000 1200 1500 1800 2100l/s 283 378 472 566 708 849 991-

ft² 1.7 2.0 2.7 3.0 3.5 4.7 5.3m² 0.15 0.19 0.25 0.28 0.33 0.43 0.50-- 180 180 225 180 180 225 225- 1 1 1 2 2 2 2-A 1.25 1.25 2.20 2.50 2.50 4.40 4.40

lbs 60 67 82 87 109 134 141kg 27 31 37 40 50 61 64lbs 63 70 86 91 114 141 148kg 29 32 39 41 52 64 67lbs 68 77 95 102 126 156 167kg 31 35 43 46 57 71 76lbs 80 86 98 107 132 163 174kg 36 39 45 49 60 74 79lbs 83 89 102 111 137 170 181kg 38 41 46 51 62 77 82lbs 86 96 117 122 149 185 200kg 39 44 53 56 68 84 91

High dB(A) 41.60 42.38 41.76 42.35 43.08 42.49 46.76Sound Pressure Level *

Unit Weight **DYP EC & DCYP EC

3R

4R

6R

Unit Weight **DYE EC & DCYE EC

3R

4R

6R

Fan & Motor

Fan Forward curved, double inlet, centrifugal fan Model

QuantityMotor 220V-240V/1Ph/50Hz-60Hz, EC motors. Control input is 0-10 VDC.

Current Drawn

Unit SizeNominal Airflow Rate

@ 25Pa ESP, High Speed

CoilType Copper tubes mechanically bonded to hi-efficiency wavy corrugated Aluminium fins

Face Area

Table 2

Nominal Capacity Ratings - StandardDYP EC and DYE EC Chilled Water Coils

NotesChilled water capacity ratings are based on nominal air flow rate; air entering temperature DB/WB 80°F/67°F (27°C/19.5°C),45°F (7.2°C) entering chilled water temperature and 10°F (5.5°C) water temperature rise.

For conditions other than rated, use SKM FCU Computer Selection Software.

Nominal Airflow

Total Capacity

Sensible Capacity

Water Flow Rate

Water Pressure

Drop

Total Capacity

Sensible Capacity

Water Flow Rate

Water Pressure

Drop

Total Capacity

Sensible Capacity

Water Flow Rate

Water Pressure

Dropcfm MBh MBh gpm ftWg MBh MBh gpm ftWg MBh MBh gpm ftWgl/s kW kW l/s kPa kW kW l/s kPa kW kW l/s kPa600 17.71 12.88 3.54 8.83 21.59 15.01 4.32 15.15 25.61 17.19 5.12 4.86283 5.19 3.78 0.22 26.38 6.33 4.40 0.27 45.30 7.51 5.04 0.32 14.53800 22.97 16.77 4.59 15.20 27.36 19.34 5.47 12.35 33.91 22.76 6.78 8.70378 6.73 4.92 0.29 45.44 8.02 5.67 0.35 36.91 9.94 6.67 0.43 26.001000 29.45 21.37 5.89 14.14 34.67 24.45 6.93 8.44 43.27 28.86 8.65 8.02472 8.63 6.26 0.37 42.28 10.16 7.17 0.44 25.24 12.68 8.46 0.55 23.981200 32.97 24.62 6.59 6.50 41.04 29.01 8.21 11.40 50.87 34.14 10.17 8.01566 9.66 7.21 0.42 19.44 12.03 8.50 0.52 34.07 14.91 10.01 0.64 23.961500 40.99 30.48 8.20 10.33 49.02 35.25 9.80 8.44 62.50 42.16 12.50 9.68708 12.01 8.93 0.52 30.88 14.37 10.33 0.62 25.22 18.32 12.36 0.79 28.941800 51.58 37.83 10.32 9.28 60.11 43.07 12.02 5.45 77.19 51.62 15.44 7.47849 15.12 11.09 0.65 27.73 17.62 12.62 0.76 16.31 22.63 15.13 0.97 22.332100 56.68 42.77 11.34 4.46 71.35 50.65 14.27 7.91 90.77 60.48 18.15 10.67991 16.61 12.54 0.72 13.32 20.91 14.84 0.90 23.63 26.60 17.73 1.15 31.90

swoR 6swoR 4

12

15

18

21

6

8

10

Size

3 Rows

Table 3


8

Air Flow Rates - StandardDYP EC

inWg 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4Pa 25 50 75 100 25 50 75 100 25 50 75 100cfm 709 673 631 582 690 653 610 559 651 614 570 514l/s 334.7 317.6 297.9 274.5 325.6 308.0 287.7 263.7 307.4 289.6 268.8 242.8

cfm 767 723 666 607 748 700 645 588 708 659 608 552l/s 361.8 341.2 314.4 286.5 353.0 330.5 304.3 277.4 333.9 310.9 286.9 260.6

cfm 1212 1150 1084 1020 1174 1112 1050 995 1105 1049 998 954l/s 571.8 542.5 511.3 481.5 553.8 524.7 495.6 469.5 521.2 495.0 470.8 450.0

cfm 1331 1273 1205 1119 1297 1237 1165 1072 1229 1165 1084 978l/s 628.1 600.8 568.7 528.0 612.3 583.6 549.6 505.8 580.1 549.6 511.5 461.7

cfm 1457 1377 1284 1180 1416 1333 1241 1136 1336 1253 1163 1051l/s 687.4 650.0 605.8 556.7 668.2 629.2 585.6 536.0 630.3 591.5 548.7 495.8

cfm 2269 2150 2035 1940 2185 2076 1977 1889 2050 1963 1881 1775l/s 1070.6 1014.4 960.5 915.5 1031.3 979.5 932.9 891.3 967.3 926.4 887.6 837.8

cfm 2423 2299 2167 2042 2347 2224 2101 1990 2208 2098 1995 1907l/s 1143.5 1084.9 1022.7 963.5 1107.6 1049.4 991.5 939.0 1042.1 990.1 941.6 900.0

cfm 619 584 538 489 606 567 521 474 575 534 492 448l/s 292.1 275.7 253.7 230.9 285.8 267.5 245.8 223.9 271.1 252.1 232.3 211.3

cfm 635 603 555 504 625 589 541 493 604 562 517 473l/s 299.5 284.5 261.9 237.7 294.9 278.0 255.2 232.4 284.9 265.3 243.7 223.1

cfm 1048 1006 956 898 1028 984 933 875 988 941 889 837l/s 494.5 474.9 451.3 423.8 485.2 464.6 440.1 413.1 466.2 444.0 419.5 394.8

cfm 1201 1133 1049 959 1169 1096 1014 926 1103 1030 953 864l/s 566.8 534.7 495.0 452.6 551.6 517.3 478.6 437.1 520.6 486.1 449.9 407.8

cfm 1250 1181 1086 986 1225 1148 1053 959 1168 1084 998 910l/s 589.7 557.5 512.3 465.4 578.0 541.5 496.8 452.6 551.2 511.6 470.8 429.3

cfm 2009 1916 1807 1696 1957 1860 1754 1652 1855 1759 1665 1582l/s 948.3 903.9 852.8 800.5 923.7 877.5 827.6 779.4 875.5 829.9 785.8 746.4

cfm 2096 2012 1912 1796 2056 1969 1865 1751 1976 1881 1777 1674l/s 989.0 949.6 902.4 847.4 970.2 929.1 879.9 826.2 932.4 887.7 838.5 789.7

cfm 480 457 423 384 474 449 414 377 462 433 398 364l/s 226.5 215.8 199.5 181.3 223.7 211.9 195.3 178.0 217.8 204.1 187.7 171.9

cfm 487 465 435 397 482 460 428 391 473 449 415 381l/s 229.9 219.5 205.3 187.4 227.4 217.1 202.1 184.5 223.2 212.0 196.0 179.7

cfm 851 813 780 743 837 802 769 732 814 782 749 709l/s 401.5 383.7 367.9 350.8 395.2 378.3 363.1 345.4 383.9 369.0 353.3 334.5

cfm 952 904 832 755 938 884 811 739 906 843 775 709l/s 449.2 426.7 392.7 356.5 442.6 417.2 382.8 348.7 427.4 397.9 365.6 334.5

cfm 964 919 852 776 952 905 835 762 930 874 805 737l/s 454.7 433.7 402.2 366.0 449.2 427.0 394.2 359.6 438.9 412.6 379.7 348.0

cfm 1641 1575 1509 1428 1613 1551 1482 1399 1565 1502 1428 1344l/s 774.5 743.2 712.0 673.7 761.3 731.7 699.5 660.1 738.3 708.8 674.0 634.0

cfm 1702 1626 1559 1487 1675 1604 1539 1464 1627 1564 1498 1417l/s 803.0 767.4 735.6 701.6 790.3 757.0 726.1 690.7 767.9 738.0 706.9 668.8

3 RowsExternal Static Pressure

6 Rows4 Rows

Size Speed

15

18

21

Minimum

Medium

12

18

6

Maximum

21

6

8

10

8

10

12

15

6

8

10

12

15

18

21

Table 4



9

Air Flow Rates - StandardDYE EC

Table 5

inWg 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4Pa 25 50 75 100 25 50 75 100 25 50 75 100cfm 709 673 631 582 690 653 610 559 651 614 570 514l/s 334.7 317.6 297.9 274.5 325.6 308.0 287.7 263.7 307.4 289.6 268.8 242.8

cfm 767 723 666 607 748 700 645 588 708 659 608 552l/s 361.8 341.2 314.4 286.5 353.0 330.5 304.3 277.4 333.9 310.9 286.9 260.6

cfm 1212 1150 1084 1020 1174 1112 1050 995 1105 1049 998 954l/s 571.8 542.5 511.3 481.5 553.8 524.7 495.6 469.5 521.2 495.0 470.8 450.0

cfm 1331 1273 1205 1119 1297 1237 1165 1072 1229 1165 1084 978l/s 628.1 600.8 568.7 528.0 612.3 583.6 549.6 505.8 580.1 549.6 511.5 461.7

cfm 1457 1377 1284 1180 1416 1333 1241 1136 1336 1253 1163 1051l/s 687.4 650.0 605.8 556.7 668.2 629.2 585.6 536.0 630.3 591.5 548.7 495.8

cfm 2269 2150 2035 1940 2185 2076 1977 1889 2050 1963 1881 1775l/s 1070.6 1014.4 960.5 915.5 1031.3 979.5 932.9 891.3 967.3 926.4 887.6 837.8

cfm 2423 2299 2167 2042 2347 2224 2101 1990 2208 2098 1995 1907l/s 1143.5 1084.9 1022.7 963.5 1107.6 1049.4 991.5 939.0 1042.1 990.1 941.6 900.0

cfm 619 584 538 489 606 567 521 474 575 534 492 448l/s 292.1 275.7 253.7 230.9 285.8 267.5 245.8 223.9 271.1 252.1 232.3 211.3

cfm 635 603 555 504 625 589 541 493 604 562 517 473l/s 299.5 284.5 261.9 237.7 294.9 278.0 255.2 232.4 284.9 265.3 243.7 223.1

cfm 1048 1006 956 898 1028 984 933 875 988 941 889 837l/s 494.5 474.9 451.3 423.8 485.2 464.6 440.1 413.1 466.2 444.0 419.5 394.8

cfm 1201 1133 1049 959 1169 1096 1014 926 1103 1030 953 864l/s 566.8 534.7 495.0 452.6 551.6 517.3 478.6 437.1 520.6 486.1 449.9 407.8

cfm 1250 1181 1086 986 1225 1148 1053 959 1168 1084 998 910l/s 589.7 557.5 512.3 465.4 578.0 541.5 496.8 452.6 551.2 511.6 470.8 429.3

cfm 2009 1916 1807 1696 1957 1860 1754 1652 1855 1759 1665 1582l/s 948.3 903.9 852.8 800.5 923.7 877.5 827.6 779.4 875.5 829.9 785.8 746.4

cfm 2096 2012 1912 1796 2056 1969 1865 1751 1976 1881 1777 1674l/s 989.0 949.6 902.4 847.4 970.2 929.1 879.9 826.2 932.4 887.7 838.5 789.7

cfm 480 457 423 384 474 449 414 377 462 433 398 364l/s 226.5 215.8 199.5 181.3 223.7 211.9 195.3 178.0 217.8 204.1 187.7 171.9

cfm 487 465 435 397 482 460 428 391 473 449 415 381l/s 229.9 219.5 205.3 187.4 227.4 217.1 202.1 184.5 223.2 212.0 196.0 179.7

cfm 851 813 780 743 837 802 769 732 814 782 749 709l/s 401.5 383.7 367.9 350.8 395.2 378.3 363.1 345.4 383.9 369.0 353.3 334.5

cfm 952 904 832 755 938 884 811 739 906 843 775 709l/s 449.2 426.7 392.7 356.5 442.6 417.2 382.8 348.7 427.4 397.9 365.6 334.5

cfm 964 919 852 776 952 905 835 762 930 874 805 737l/s 454.7 433.7 402.2 366.0 449.2 427.0 394.2 359.6 438.9 412.6 379.7 348.0

cfm 1641 1575 1509 1428 1613 1551 1482 1399 1565 1502 1428 1344l/s 774.5 743.2 712.0 673.7 761.3 731.7 699.5 660.1 738.3 708.8 674.0 634.0

cfm 1702 1626 1559 1487 1675 1604 1539 1464 1627 1564 1498 1417l/s 803.0 767.4 735.6 701.6 790.3 757.0 726.1 690.7 767.9 738.0 706.9 668.8


Maximum

Medium

Minimum

21

SpeedSize

3 Rows 4 Rows

8

10

12

15

18

12

15

18

21

6

18

21

6

8

10

6

8

10

12

15


10

Data based on 80°F/67°F (27°C/19.5°C) air on-coil DBT/WBT, 45°F/55°F (7.2°C/12.8°C) entering/leaving chilled water temperature

Capacity Ratings - StandardDYP EC 3 ROWS

inWg Pa cfm l/s MBh kW MBh kW gpm l/s ftWg kPa0.1 25 709 335 19.32 5.66 14.40 4.22 3.86 0.24 10.37 30.990.2 50 673 318 18.79 5.51 13.90 4.07 3.76 0.24 9.85 29.440.3 75 631 298 18.18 5.33 13.32 3.90 3.64 0.23 9.26 27.690.4 100 582 275 17.44 5.11 12.63 3.70 3.49 0.22 8.58 25.650.1 25 619 292 18.00 5.28 13.15 3.85 3.60 0.23 9.10 27.200.2 50 584 276 17.47 5.12 12.66 3.71 3.49 0.22 8.61 25.740.3 75 538 254 16.68 4.89 11.96 3.51 3.34 0.21 7.90 23.630.4 100 489 231 15.80 4.63 11.20 3.28 3.16 0.20 7.15 21.380.1 25 480 227 15.63 4.58 11.06 3.24 3.13 0.20 7.01 20.970.2 50 457 216 15.20 4.46 10.69 3.13 3.04 0.19 6.67 19.930.3 75 423 200 14.56 4.27 10.13 2.97 2.91 0.18 6.16 18.410.4 100 384 181 13.80 4.04 9.48 2.78 2.76 0.17 5.58 16.670.1 25 767 362 22.42 6.57 16.29 4.77 4.48 0.28 14.54 43.460.2 50 723 341 21.65 6.34 15.63 4.58 4.33 0.27 13.62 40.730.3 75 666 314 20.74 6.08 14.81 4.34 4.15 0.26 12.59 37.630.4 100 607 286 19.81 5.81 13.94 4.09 3.96 0.25 11.57 34.600.1 25 635 300 20.26 5.94 14.36 4.21 4.05 0.26 12.06 36.050.2 50 603 285 19.74 5.79 13.88 4.07 3.95 0.25 11.50 34.390.3 75 555 262 18.96 5.56 13.15 3.86 3.79 0.24 10.67 31.900.4 100 504 238 18.09 5.30 12.36 3.62 3.62 0.23 9.79 29.280.1 25 487 230 17.80 5.22 12.10 3.55 3.56 0.22 9.50 28.400.2 50 465 219 17.34 5.08 11.72 3.44 3.47 0.22 9.06 27.090.3 75 435 205 16.67 4.89 11.19 3.28 3.33 0.21 8.43 25.190.4 100 397 187 15.78 4.63 10.49 3.08 3.16 0.20 7.62 22.790.1 25 1212 572 33.19 9.73 24.51 7.18 6.64 0.42 17.63 52.690.2 50 1150 543 32.13 9.42 23.61 6.92 6.43 0.41 16.60 49.630.3 75 1084 512 30.98 9.08 22.64 6.64 6.20 0.39 15.52 46.400.4 100 1020 481 29.85 8.75 21.68 6.35 5.97 0.38 14.50 43.330.1 25 1048 495 30.34 8.89 22.10 6.48 6.07 0.38 14.94 44.670.2 50 1006 475 29.60 8.68 21.47 6.29 5.92 0.37 14.28 42.670.3 75 956 451 28.72 8.42 20.72 6.07 5.74 0.36 13.50 40.360.4 100 898 424 27.80 8.15 19.88 5.83 5.56 0.35 12.72 38.020.1 25 851 402 27.08 7.94 19.20 5.63 5.42 0.34 12.12 36.220.2 50 813 384 26.47 7.76 18.64 5.46 5.29 0.33 11.62 34.740.3 75 780 368 25.94 7.60 18.15 5.32 5.19 0.33 11.19 33.450.4 100 743 351 25.33 7.42 17.58 5.15 5.07 0.32 10.71 32.020.1 25 1331 628 34.98 10.25 26.44 7.75 7.00 0.44 7.26 21.700.2 50 1273 601 34.12 10.00 25.65 7.52 6.82 0.43 6.93 20.720.3 75 1205 569 33.10 9.70 24.70 7.24 6.62 0.42 6.55 19.580.4 100 1119 528 31.78 9.31 23.49 6.88 6.36 0.40 6.07 18.150.1 25 1201 567 33.04 9.68 24.65 7.22 6.61 0.42 6.53 19.510.2 50 1133 535 31.99 9.38 23.69 6.94 6.40 0.40 6.15 18.380.3 75 1049 495 30.67 8.99 22.47 6.59 6.13 0.39 5.69 17.000.4 100 959 453 29.13 8.54 21.12 6.19 5.83 0.37 5.16 15.430.1 25 952 449 29.00 8.50 21.01 6.16 5.80 0.37 5.12 15.310.2 50 904 427 28.17 8.26 20.27 5.94 5.63 0.36 4.85 14.500.3 75 832 393 26.90 7.88 19.15 5.61 5.38 0.34 4.45 13.310.4 100 755 356 25.50 7.47 17.91 5.25 5.10 0.32 4.03 12.050.1 25 1457 688 40.38 11.84 29.90 8.76 8.08 0.51 10.05 30.040.2 50 1377 650 39.15 11.48 28.77 8.43 7.83 0.49 9.49 28.360.3 75 1284 606 37.73 11.06 27.46 8.05 7.55 0.48 8.86 26.470.4 100 1180 557 36.19 10.61 25.99 7.62 7.24 0.46 8.19 24.490.1 25 1250 590 37.22 10.91 26.98 7.91 7.44 0.47 8.63 25.810.2 50 1182 558 36.22 10.62 26.02 7.63 7.24 0.46 8.21 24.530.3 75 1086 512 34.67 10.16 24.61 7.21 6.93 0.44 7.57 22.620.4 100 986 465 32.81 9.62 23.02 6.75 6.56 0.41 6.83 20.420.1 25 964 455 32.39 9.49 22.66 6.64 6.48 0.41 6.67 19.940.2 50 919 434 31.52 9.24 21.92 6.42 6.30 0.40 6.34 18.960.3 75 852 402 30.20 8.85 20.80 6.10 6.04 0.38 5.86 17.520.4 100 776 366 28.65 8.40 19.51 5.72 5.73 0.36 5.31 15.880.1 25 2269 1071 58.80 17.23 44.35 13.00 11.76 0.74 11.84 35.390.2 50 2149 1014 57.01 16.71 42.72 12.52 11.40 0.72 11.18 33.410.3 75 2036 961 55.28 16.20 41.17 12.07 11.06 0.70 10.55 31.550.4 100 1939 915 53.79 15.77 39.82 11.67 10.76 0.68 10.03 29.980.1 25 2009 948 54.87 16.08 40.79 11.96 10.97 0.69 10.41 31.110.2 50 1915 904 53.42 15.66 39.48 11.57 10.68 0.67 9.90 29.600.3 75 1808 853 51.77 15.18 37.97 11.13 10.35 0.65 9.34 27.930.4 100 1697 801 50.08 14.68 36.40 10.67 10.02 0.63 8.78 26.250.1 25 1641 774 49.24 14.43 35.61 10.44 9.85 0.62 8.51 25.430.2 50 1575 743 48.27 14.15 34.68 10.17 9.65 0.61 8.20 24.520.3 75 1509 712 47.29 13.86 33.74 9.89 9.46 0.60 7.90 23.600.4 100 1428 674 45.86 13.44 32.49 9.52 9.17 0.58 7.46 22.290.1 25 2423 1143 61.38 17.99 47.20 13.84 12.28 0.77 5.18 15.470.2 50 2299 1085 59.64 17.48 45.53 13.35 11.93 0.75 4.90 14.660.3 75 2168 1023 57.76 16.93 43.74 12.82 11.55 0.73 4.62 13.800.4 100 2042 964 55.91 16.39 42.00 12.31 11.18 0.71 4.35 12.990.1 25 2096 989 56.71 16.62 42.75 12.53 11.34 0.72 4.46 13.340.2 50 2012 949 55.47 16.26 41.58 12.19 11.09 0.70 4.28 12.800.3 75 1912 902 53.97 15.82 40.16 11.77 10.79 0.68 4.07 12.160.4 100 1796 848 52.00 15.24 38.42 11.26 10.40 0.66 3.79 11.340.1 25 1702 803 50.34 14.75 36.97 10.84 10.07 0.64 3.57 10.670.2 50 1626 767 49.02 14.37 35.81 10.50 9.80 0.62 3.40 10.160.3 75 1559 736 47.89 14.04 34.79 10.20 9.58 0.60 3.25 9.720.4 100 1487 702 46.67 13.68 33.68 9.87 9.33 0.59 3.10 9.27

Medium

Minimum

Minimum

Maximum

Medium

Minimum

Maximum

18

21

Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

6

8

10

12

15

WaterFlow Rate

WaterPressure Drop

SensibleCapacitySize Speed

ESP AirflowRate

TotalCapacity

Table 6



11




Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

Minimum

Maximum

Medium

Minimum

SensibleCapacitySpeed

ESP AirflowRate

TotalCapacity

WaterFlow Rate

WaterPressure Drop

18

21

Size

6

8

10

12

15

Table 7


12




21

Maximum

Medium

Minimum

15

Maximum

Medium

Minimum

18

Maximum

Medium

Minimum

10

Maximum

Medium

Minimum

12

Maximum

Medium

Minimum

6

Maximum

Medium

Minimum

8

Maximum

Medium

Minimum


ESP AirflowRate

TotalCapacity

WaterFlow Rate

WaterPressure Drop

Table 8



13

Notes

Chilled water capacity ratings are based on nominal air flow rate; air entering temperature DB/WB 78°F/65°F (25.5°C/18.3°C),42°F (5.5°C) entering chilled water temperature and 16°F (8.9°C) water temperature rise.

For conditions other than rated, use SKM FCU Computer Selection Software.

Nominal Capacity Ratings - District CoolingDCYP EC and DCYE EC Chilled Water Coils

Nominal Airflow

Total Capacity

Sensible Capacity

Water Flow Rate

Water Pressure

Drop

Total Capacity

Sensible Capacity

Water Flow Rate

Water Pressure

Drop

Total Capacity

Sensible Capacity

Water Flow Rate

Water Pressure

Drop

cfm MBh MBh gpm ftWg MBh MBh gpm ftWg MBh MBh gpm ftWgl/s kW kW l/s kPa kW kW l/s kPa kW kW l/s kPa600 16.55 12.73 2.07 21.34 17.66 13.82 2.21 10.61 22.64 16.40 2.83 10.91283 4.85 3.73 0.13 63.78 5.18 4.05 0.14 31.71 6.64 4.81 0.18 32.61800 18.58 15.49 2.32 10.04 22.13 17.75 2.77 8.23 32.22 22.65 4.03 22.27378 5.44 4.54 0.15 30.02 6.49 5.20 0.17 24.59 9.44 6.64 0.25 66.561000 23.59 19.63 2.95 9.21 32.54 24.20 4.07 20.54 38.09 27.45 4.76 13.25472 6.92 5.75 0.19 27.54 9.54 7.09 0.26 61.39 11.16 8.04 0.30 39.621200 30.41 24.20 3.80 14.24 33.19 26.63 4.15 7.39 43.03 31.78 5.38 7.71566 8.91 7.09 0.24 42.56 9.73 7.80 0.26 22.09 12.61 9.31 0.34 23.031500 32.66 28.03 4.08 6.29 44.69 34.36 5.59 13.66 56.53 40.77 7.07 13.65708 9.57 8.22 0.26 18.80 13.10 10.07 0.35 40.83 16.57 11.95 0.45 40.821800 46.94 36.92 5.87 14.90 53.54 41.49 6.69 11.30 65.65 48.17 8.21 7.90849 13.76 10.82 0.37 44.55 15.69 12.16 0.42 33.77 19.24 14.12 0.52 23.622100 48.93 40.79 6.12 8.34 59.57 47.21 7.45 8.35 79.76 57.47 9.97 12.08991 14.34 11.96 0.39 24.92 17.46 13.84 0.47 24.97 23.38 16.84 0.63 36.10

10

12

15

18

21

6 Rows

Size

6

8

swoR 4swoR 3

Table 9


14

Air Flow Rates - District CoolingDCYP EC

Table 10

inWg 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4Pa 25 50 75 100 25 50 75 100 25 50 75 100cfm 739 691 641 593 721 674 626 579 688 644 600 553l/s 348.7 326.2 302.5 279.6 340.3 318.0 295.6 273.2 324.5 303.8 283.3 261.0

cfm 775 733 680 627 763 719 667 615 739 691 643 595l/s 365.7 345.8 320.7 295.7 360.1 339.1 314.6 290.3 348.5 326.2 303.5 280.7

cfm 1259 1200 1133 1063 1234 1174 1108 1041 1186 1125 1062 1004l/s 594.1 566.5 534.6 501.4 582.3 554.1 522.7 491.3 559.5 530.7 501.4 474.0

cfm 1423 1329 1236 1140 1382 1292 1204 1109 1311 1230 1147 1052l/s 671.6 626.9 583.2 537.8 652.4 609.8 568.3 523.2 618.6 580.6 541.2 496.5

cfm 1500 1406 1304 1204 1467 1372 1275 1178 1404 1313 1224 1130l/s 707.9 663.3 615.2 568.2 692.4 647.7 601.7 556.1 662.4 619.8 577.7 533.2

cfm 2384 2258 2129 2011 2322 2199 2078 1972 2209 2097 1995 1906l/s 1125.1 1065.7 1004.7 948.8 1095.7 1037.5 980.7 930.8 1042.3 989.7 941.7 899.2

cfm 2518 2401 2265 2125 2469 2348 2214 2082 2371 2249 2124 2009l/s 1188.2 1132.9 1069.0 1002.8 1165.0 1108.0 1044.9 982.6 1118.8 1061.4 1002.4 948.2

cfm 625 593 551 507 616 582 540 498 599 561 522 483l/s 294.7 279.7 259.8 239.3 290.9 274.7 254.9 235.2 282.5 264.9 246.1 227.8

cfm 643 616 577 531 637 609 569 524 626 594 553 510l/s 303.4 290.5 272.5 250.8 300.6 287.4 268.7 247.1 295.2 280.5 261.1 240.7

cfm 1076 1034 988 931 1062 1021 973 916 1036 993 943 886l/s 507.9 488.0 466.2 439.6 501.1 481.7 459.2 432.1 488.8 468.8 444.9 417.9

cfm 1222 1150 1066 984 1200 1125 1044 965 1155 1080 1005 929l/s 576.8 542.7 503.3 464.2 566.2 531.0 492.7 455.4 544.8 509.5 474.2 438.6

cfm 1260 1199 1116 1027 1245 1180 1097 1011 1214 1142 1060 980l/s 594.4 566.0 526.6 484.8 587.6 557.0 517.5 477.0 572.9 539.0 500.4 462.7

cfm 2073 1987 1883 1766 2041 1951 1845 1731 1975 1880 1775 1670l/s 978.3 937.7 888.6 833.4 963.0 920.7 870.7 817.0 932.0 887.2 837.7 788.0

cfm 2152 2068 1976 1863 2124 2041 1945 1831 2071 1987 1885 1771l/s 1015.7 975.8 932.4 879.0 1002.1 963.1 918.0 863.8 977.4 937.5 889.6 835.8

cfm 490 469 443 408 486 465 438 403 478 457 428 394l/s 231.3 221.4 209.1 192.7 229.1 219.5 206.6 190.2 225.3 215.7 201.8 185.9

cfm 505 479 457 424 500 476 453 420 492 471 446 412l/s 238.1 226.0 215.6 199.9 236.0 224.7 213.8 198.0 232.2 222.2 210.4 194.3

cfm 871 831 794 760 862 823 788 753 844 807 775 738l/s 411.0 392.2 374.8 358.5 406.6 388.3 371.8 355.3 398.3 381.0 365.7 348.4

cfm 964 924 866 797 955 914 854 786 938 892 830 765l/s 455.1 435.8 408.9 376.1 450.8 431.1 402.9 370.7 442.8 420.8 391.7 361.1

cfm 988 944 895 825 979 937 885 816 963 923 866 797l/s 466.2 445.4 422.1 389.3 461.8 442.2 417.5 384.9 454.3 435.4 408.6 376.3

cfm 1684 1611 1544 1469 1663 1594 1528 1451 1625 1562 1495 1414l/s 794.5 760.1 728.7 693.4 784.6 752.0 721.1 684.5 766.9 737.0 705.6 667.2

cfm 1742 1662 1589 1519 1723 1645 1575 1506 1688 1615 1550 1477l/s 821.9 784.2 749.7 716.9 813.1 776.5 743.4 710.5 796.5 762.3 731.3 696.9

6 Rows4 Rows3 RowsExternal Static Pressure

Minimum

Medium

Maximum

Speed

6

21

8

10

12

15

18

Size

15

18

21

12

18

21

6

8

10

6

8

10

12

15



15

Table 11

inWg 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4 0.1 0.2 0.3 0.4Pa 25 50 75 100 25 50 75 100 25 50 75 100cfm 739 691 641 593 721 674 626 579 688 644 600 553l/s 348.7 326.2 302.5 279.6 340.3 318.0 295.6 273.2 324.5 303.8 283.3 261.0

cfm 775 733 680 627 763 719 667 615 739 691 643 595l/s 365.7 345.8 320.7 295.7 360.1 339.1 314.6 290.3 348.5 326.2 303.5 280.7

cfm 1259 1200 1133 1063 1234 1174 1108 1041 1186 1125 1062 1004l/s 594.1 566.5 534.6 501.4 582.3 554.1 522.7 491.3 559.5 530.7 501.4 474.0

cfm 1423 1329 1236 1140 1382 1292 1204 1109 1311 1230 1147 1052l/s 671.6 626.9 583.2 537.8 652.4 609.8 568.3 523.2 618.6 580.6 541.2 496.5

cfm 1500 1406 1304 1204 1467 1372 1275 1178 1404 1313 1224 1130l/s 707.9 663.3 615.2 568.2 692.4 647.7 601.7 556.1 662.4 619.8 577.7 533.2

cfm 2384 2258 2129 2011 2322 2199 2078 1972 2209 2097 1995 1906l/s 1125.1 1065.7 1004.7 948.8 1095.7 1037.5 980.7 930.8 1042.3 989.7 941.7 899.2

cfm 2518 2401 2265 2125 2469 2348 2214 2082 2371 2249 2124 2009l/s 1188.2 1132.9 1069.0 1002.8 1165.0 1108.0 1044.9 982.6 1118.8 1061.4 1002.4 948.2

cfm 625 593 551 507 616 582 540 498 599 561 522 483l/s 294.7 279.7 259.8 239.3 290.9 274.7 254.9 235.2 282.5 264.9 246.1 227.8

cfm 643 616 577 531 637 609 569 524 626 594 553 510l/s 303.4 290.5 272.5 250.8 300.6 287.4 268.7 247.1 295.2 280.5 261.1 240.7

cfm 1076 1034 988 931 1062 1021 973 916 1036 993 943 886l/s 507.9 488.0 466.2 439.6 501.1 481.7 459.2 432.1 488.8 468.8 444.9 417.9

cfm 1222 1150 1066 984 1200 1125 1044 965 1155 1080 1005 929l/s 576.8 542.7 503.3 464.2 566.2 531.0 492.7 455.4 544.8 509.5 474.2 438.6

cfm 1260 1199 1116 1027 1245 1180 1097 1011 1214 1142 1060 980l/s 594.4 566.0 526.6 484.8 587.6 557.0 517.5 477.0 572.9 539.0 500.4 462.7

cfm 2073 1987 1883 1766 2041 1951 1845 1731 1975 1880 1775 1670l/s 978.3 937.7 888.6 833.4 963.0 920.7 870.7 817.0 932.0 887.2 837.7 788.0

cfm 2152 2068 1976 1863 2124 2041 1945 1831 2071 1987 1885 1771l/s 1015.7 975.8 932.4 879.0 1002.1 963.1 918.0 863.8 977.4 937.5 889.6 835.8

cfm 490 469 443 408 486 465 438 403 478 457 428 394l/s 231.3 221.4 209.1 192.7 229.1 219.5 206.6 190.2 225.3 215.7 201.8 185.9

cfm 505 479 457 424 500 476 453 420 492 471 446 412l/s 238.1 226.0 215.6 199.9 236.0 224.7 213.8 198.0 232.2 222.2 210.4 194.3

cfm 871 831 794 760 862 823 788 753 844 807 775 738l/s 411.0 392.2 374.8 358.5 406.6 388.3 371.8 355.3 398.3 381.0 365.7 348.4

cfm 964 924 866 797 955 914 854 786 938 892 830 765l/s 455.1 435.8 408.9 376.1 450.8 431.1 402.9 370.7 442.8 420.8 391.7 361.1

cfm 988 944 895 825 979 937 885 816 963 923 866 797l/s 466.2 445.4 422.1 389.3 461.8 442.2 417.5 384.9 454.3 435.4 408.6 376.3

cfm 1684 1611 1544 1469 1663 1594 1528 1451 1625 1562 1495 1414l/s 794.5 760.1 728.7 693.4 784.6 752.0 721.1 684.5 766.9 737.0 705.6 667.2

cfm 1742 1662 1589 1519 1723 1645 1575 1506 1688 1615 1550 1477l/s 821.9 784.2 749.7 716.9 813.1 776.5 743.4 710.5 796.5 762.3 731.3 696.9

18

21

Maximum

Medium

Minimum

6

8

10

12

15

10

12

15

18

21

8


Speed

21

6

Size

12

15

18

4 Rows3 Rows

6

8

10

Air Flow Rates - District CoolingDCYE EC


16

Capacity Ratings - District CoolingDCYP EC 3 ROWS


21

Maximum

Medium

Minimum

15

Maximum

Medium

Minimum

18

Maximum

Medium

Minimum

10

Maximum

Medium

Minimum

12

Maximum

Medium

Minimum

6

Maximum

Medium

Minimum

8

Maximum

Medium

Minimum

Size SpeedESP Airflow

RateTotal

CapacitySensibleCapacity

WaterFlow Rate

WaterPressure Drop

Table 12Data based on 76°F/63°F (24.4°C/17.2°C) air on-coil DBT/WBT, 42°F/58°F (5.5°C/14.4°C) entering/leaving chilled water temperature



17


21

Maximum

Medium

Minimum

15

Maximum

Medium

Minimum

18

Maximum

Medium

Minimum

10

Maximum

Medium

Minimum

12

Maximum

Medium

Minimum

6

Maximum

Medium

Minimum

8

Maximum

Medium

Minimum


ESP AirflowRate

TotalCapacity

WaterFlow Rate

WaterPressure Drop



18



Minimum

6

8

10

12

15

18

21

Maximum

Medium

Minimum

Maximum

Medium

Medium

Minimum

Maximum

Medium

Minimum

Minimum

Maximum

Medium

Minimum

Maximum

Maximum

Medium

Minimum

Maximum

Medium


ESP AirflowRate

TotalCapacity

WaterFlow Rate

WaterPressure Drop




19


21

Maximum

Medium

Minimum

15

Maximum

Medium

Minimum

18

Maximum

Medium

Minimum

10

Maximum

Medium

Minimum

12

Maximum

Medium

Minimum

6

Maximum

Medium

Minimum

8

Maximum

Medium

Minimum


ESP AirflowRate

TotalCapacity

WaterFlow Rate

WaterPressure Drop



20



21

Maximum

Medium

Minimum

15

Maximum

Medium

Minimum

18

Maximum

Medium

Minimum

10

Maximum

Medium

Minimum

12

Maximum

Medium

Minimum

6

Maximum

Medium

Minimum

8

Maximum

Medium

Minimum


ESP AirflowRate

TotalCapacity

WaterFlow Rate

WaterPressure Drop




21


21

Maximum

Medium

Minimum

15

Maximum

Medium

Minimum

18

Maximum

Medium

Minimum

10

Maximum

Medium

Minimum

12

Maximum

Medium

Minimum

6

Maximum

Medium

Minimum

8

Maximum

Medium

Minimum


ESP AirflowRate

TotalCapacity

WaterFlow Rate

WaterPressure Drop



22

Notes:Above wiring from factory is provided only if CHTS option is ordered, or else all the required signals and controls (incloding 0-10V DC signals for CHTS fan to be provided at site by others.

Notes:Above wiring from factory is provided only if CHTS option is ordered, or else all the required signals and controls (including 0-10V DC signals for CHTS fan to be provided at site by others.

Control System Description

Control System Operation- MP1: 2-pipe system with modulating valveThermostat modulates an electric 2-way or 3-way motorized chilled water valve according to the set point.The fan runs between minimum and maximum speed set in the thermostat and according to the cooling demand.

Figure 4 ELECTRIC COOLING VALVE

G0 GY

E

N

LTFR

220~

240

V

24 V

Y50

G

G0 Y10 Y20

X2MX1

THERMOSTAT( OPTION )

POWER SUPPLY220~240V / 1PH / 50~60Hz

( BY OTHERS )

E

MCB1 MCB2

PE N L

+10

V

+10

V/PW

M

GND

TACH

O

YELL

OW

BLUE

BLAC

K

BLUE

YLW

/ GR

N

MOTOR TERMINALS

GNDD1

- MP2: 4-pipe system with modulating valveThermostat modulates electric 2-way or 3-way motorized hot or chilled water valve to maintain the desired temperature.The fan runs between minimum and maximum speed set in the thermostat and according to the cooling or heating demand.

ELECTRIC COOLING VALVE

G0 GY

E

N

LTFR

Y50

G

G0 Y10 Y20

X2MX1

THERMOSTAT( OPTION )

POWER SUPPLY220~240V / 1PH / 50~60Hz

( BY OTHERS )

E

MCB1 MCB2

PE N L

+10

V

+10

V/PW

M

GND

TACH

O

YELL

OW

BLUE

BLAC

K

BLUE

YLW

/ GR

N

MOTOR TERMINALS

GNDD1

ELECTRIC HEATING VALVE

G0 GY

( BY OTHERS )

220~

240

V

24 V

Figure 5



23

Selection

Selection Considerations

In selecting Hi - Static Fan Coil units for a specific application the factors to be considered should include:

• Available space for the unit including floor to ceiling height.• Type of application ( Standard / District cooling).• Presence of high sensible or peripheral loads in space.• Functionality of intended space usage.• Availability of access for pipes, drains and power.• Compatibility with intended space finish.• Fresh air and ventilation requirements.• Noise level desired at peak or part load operations.• Control system desired .• Economy of layout.

Once a particular model or models in the Hi - Static series is selected after consideration of the above factors, it is necessary to select the unit and coil size to match. It is possible to obtain different unit size with or without different coil depths to meet given design parameters.

The correct unit with correct coil size is obtained only when required cfm at defined speed; i.e. Maximum, Medium or Minimum to meet sensible load of the space is matched to the correct coil providing the required sensible cooling or outlet temperature at given flow rate and design temperature rise with the unit operating at functional sound levels.To achieve this the engineer or designer must not only check aesthetic needs but also space limitations, psychrometric feasibility, circulation and ventilation, room acoustical effect, control system, piping accesses including overall chilled water circuits and effect of diversity on same.

Selection Procedure

It is recommend to use SKM selection software. If it is not suitable, then follow the procedure below:

1. Select unit that delivers approximately airflow required at desired speed and external static pressure from airflow rate tables. Select unit with airflow equal or more than that required.

2. Apply correction factors to selected unit and find out the actual total and sensible cooling capacity.

3. Repeat step 1 if required parameter is not met with actual values obtained from initially selected unit.

Control PackagesSKM provides a variety of control options, a few of which are mentioned below. Please consult SKM sales department for other control applications.

Control System

The control systems for SKM Hi - Static FCUs can be selected provided the application is identified for Cooling and/or Heating.

The control system can be:

• 2-pipe with modulating valve (Code MP1)• 4-pipe with modulating valve (Code MP2)

Control valves in the control system are available in 2-way and 3-way modulating versions with compression ends for easy field installation and replacement.

Valve PackagesSKM offers a wide variety of optional valve packages (Types1 to Type8), shown in Figure 6, that can suit practically any application.

Any one of the following options may be chosen, considering application requirements:

1. Factory furnished and installed as a complete package. Specify Type number.

2. Furnished by the factory and field installed by the customer. Add prefix C to the valve package type; e.g. Type C1.

Specify your valve package requirements from the full line of accessories as follows:

• Gate or stop valve• Globe or balancing valve• 3 - way motorized valve, electric• 2 - way motorized valve, electric

Combinations available can be selected as standard.

Combinations and/or requirements not covered in Figure 6, Type1 to Type8, may be available and should refer to factory for selection.


24

Type 1

OUT

OUT

Type 3

LEGEND

2 Way motorized valve

Globe/Balancing valve

3 way motorized valve

Ball valve

IN

IN

*Type 7 Type 8*OUT

outside the unit for DDF models.Type 5 to Type 8 to be installed*

NOTE:

IN

IN

OUT

IN

OUT

Type 4

IN

OUT

Type 2 **

IN

OUT

IN

OUT

Type 5 Type 6

Valve Packages

LEGEND

2 Way motorized valve

Globe/Balancing valve

3 way motorized valve

Ball valveoutside the unitType 5 to Type 8 to be installed*

NOTE:

.

Figure 6

Ordering and Selection Procedure

To correctly order the desired valve package and/or control package as a complete integrated control system, the following procedure should be adopted.

1. Select desired valve package; Type 1 to Type 8

2. Decide to have same factory installed. Add prefix C to Type (eg. Type C1) if to be supplied only by SKM for field installation

3. Select desired control package Code MP1 or MP2

4. Complete ordering code option. For example ordering code 3MP1 shall provide a factory installed valve package with a 2 way electric modulating motorized valve plus stop valve for the supply and return lines as shown in Type 3, Figure 6.



25

Dimensional Data

DYP EC and DCYP EC

TERMINALCONNECTION

4-5/8 ØMTG.HOLES

2 3

4 4

CONNECTIONTERMINAL

AIR VENT

UNIT SIZE 06 - 10 UNIT SIZE 12 - 21

COIL IN/OUTLEFT HAND UNIT SHOWNRIGHT HAND UNIT OPPOSITE

UNITMODEL

06

A B C D1 F

33 838 21.5 546 12.48 317 15 381

3811564825.59403708

64825.59403710

3811595237.512454912

38115110543.513975515

110543.513975518

125749.515496121

1 1 32

6

5

(DUCTED)

5

6

BOTTOM RETURN-OPTIONAL

18.67 474

41716.42

G

GROMMETSWITH RUBBER

FILTERREMOVAL

FREE RETURN-STANDARD

FILTERREMOVAL

FILTERREMOVAL

5

6

REAR RETURN-OPTIONAL(DUCTED)

C

12

12

12

14.5

305

305

305

368

D

12 305

14.5 368

14.5 368

0.59 Ø FOR SIZES 06-100.87 Ø FOR SIZES 12-24

D1 F

F

D x A

D x

A F

Ø3/4DRAIN

*

KM

L

A

B

DRAINL KM

B

A

11.25[286]

P

Q

2.5

12 305

P

9.6 244

Q

12 305 9.6 244

13.5 343 11.25 286

12 305 9.6 244

12 305 9.6 244

13.5 343 11.25 286

13.5 343 11.25 28651

45

45

39

27

27

23

1295

1143

1143

991

686

686

584

31712.48

12.48 317

31712.48

37714.84

14.84 377

14.84 377

44017.32

17.32 440

17.32 440

G

MODELUNIT

06

K L M

707

707

681

663

606

553

603

26.12

27.84

27.84

26.82

23.86

21.78

23.74

857

804

804

760

800

747

747

29.93

33.75

31.66

31.50

29.41

29.41

200.79

2.88

0.79

1.82

20

73

46

4.61 117

559

mm

22

in

70327.68 2.64 67

DIMENSIONSFOR

3R / 4R

3R / 4R + HEATER

6R + HEATER

6R

6R + HEATER

3R / 4R + HEATER

6R

3R / 4R

4.61 117

672.64

081215

1821

10

8.5[216]

1.5[38]

2[51]

[19]

[16]

[19]Ø3/4

2[51]

8.5[216]

1.5[38]

N

1[25]

1[2

5]

0.75[19]

[15][22]

1.5

[38]1

[25]

[63]

0.75[19]

31.66

16.42 417

16.42 417

16.42 417

18.67 474

18.67 474

N

1.54 39

E

3.50 89

1.54 39

2.56 65

39

3.63 92

3.50 89

1.54 39

1.54

DYP-EC & DCYP-EC

E = 1.73 FOR 3R2.60 FOR 4R4.33 FOR 6R

LEGEND

1 INSULATED R.A.PLENUM

SUPPLY FAN2

FAN MOTOR3

COOLING COIL4

6 FILTER

5 ACCESS PANEL

ADD 1.75 FOR 6 ROW*

[44][66][110]

[44]

NOTE:

mmin mmin mminmminmminmminmminmminmminmminmminmmin

ALL DIMENSIONS ARE IN INCHES [mm]

TERMINALCONNECTION

4-5/8 ØMTG.HOLES

2 3

4 4

CONNECTIONTERMINAL

AIR VENT

UNIT SIZE 06 - 10 UNIT SIZE 12 - 21

COIL IN/OUTLEFT HAND UNIT SHOWNRIGHT HAND UNIT OPPOSITE

UNITMODEL

06

A B C D1 F

33 838 21.5 546 12.48 317 15 381

3811564825.59403708

64825.59403710

3811595237.512454912

38115110543.513975515

110543.513975518

125749.515496121

1 1 32

6

5

(DUCTED)

5

6

BOTTOM RETURN-OPTIONAL

18.67 474

41716.42

G

GROMMETSWITH RUBBER

FILTERREMOVAL

FREE RETURN-STANDARD

FILTERREMOVAL

FILTERREMOVAL

5

6

REAR RETURN-OPTIONAL(DUCTED)

C

12

12

12

14.5

305

305

305

368

D

12 305

14.5 368

14.5 368


D1

F

F

D x A

D x

A F

Ø3/4DRAIN

*

KM

L

A

B

DRAINL KM

B

A

11.25[286]

P

Q

2.5

12 305

P

9.6 244

Q

12 305 9.6 244

13.5 343 11.25 286

12 305 9.6 244

12 305 9.6 244

13.5 343 11.25 286

13.5 343 11.25 28651

45

45

39

27

27

23

1295

1143

1143

991

686

686

584

31712.48

12.48 317

31712.48

37714.84

14.84 377

14.84 377

44017.32

17.32 440

17.32 440

G

MODELUNIT

06

K L M

707

707

681

663

606

553

603

26.12

27.84

27.84

26.82

23.86

21.78

23.74

857

804

804

760

800

747

747

29.93

33.75

31.66

31.50

29.41

29.41

200.79

2.88

0.79

1.82

20

73

46

4.61 117

559

mm

22

in

70327.68 2.64 67

DIMENSIONSFOR

3R / 4R

3R / 4R + HEATER

6R + HEATER

6R

6R + HEATER

3R / 4R + HEATER

6R

3R / 4R

4.61 117

672.64

081215

1821

10

8.5[216]

1.5[38]

2[51]

[19]

[16]

[19]Ø3/4

2[51]

8.5[216]

1.5[38]

N

1[25]

1[2

5]

0.75[19]

[15][22]

1.5

[38]1

[25]

[63]

0.75[19]

31.66

16.42 417

16.42 417

16.42 417

18.67 474

18.67 474

N

1.54 39

E

3.50 89

1.54 39

2.56 65

39

3.63 92

3.50 89

1.54 39

1.54

DYP-EC & DCYP-EC

E = 1.73 FOR 3R2.60 FOR 4R4.33 FOR 6R

LEGEND

1 INSULATED R.A.PLENUM

SUPPLY FAN2

FAN MOTOR3

COOLING COIL4

6 FILTER

5 ACCESS PANEL

ADD 1.75 FOR 6 ROW*

[44][66][110]

[44]

NOTE:

mmin mmin mminmminmminmminmminmminmminmminmminmmin

ALL DIMENSIONS ARE IN INCHES [mm]

Table 18


26

4x5/8 ØMTG.HOLES

3 124

5

(DUCTED)REAR RETURN-OPTIONAL

CONNECTIONTERMINAL

GROMMETSWITH RUBBER

5

REMOVALFILTER

**

5.75

[146

]

1[25]

1 [25]

3[76]

8[2

03]

8[2

03]

J x

G

C

K

L

B A

[16]

P


FREE SUPPLY & RETURN WITH GRILL -STANDARD

COIL IN/OUT

F

[15] [22]

[44]

1.75

D

DRAIN [19]3/4 Ø

4 REMOVALFILTER

[38]

1.5

Q

0.75 [19]

AIR VENT

5

[76]3

[76]

LEFT HAND UNIT SHOWNRIGHT HAND UNIT OPPOSITE

FOR COIL OUT, COIL IN [32]HOLES 1 1/4 Ø

AND DRAIN2.5[64]

3

[25]1

J

ENTRYCABLE

E G E

3[76]

(FRONT VIEW)

(REAL VIEW)

A

B

6 7

DYE-EC & DCYE-EC

LEGEND

1 SUPPLY FAN

2 FAN MOTOR

3 COOLING COIL

4 ACCESS PANELFILTER5SUPPLY AIR GRILL6RETURN AIR GRILL7

UNITSIZE

06

A B C D F

ADD 1.75 FOR 6 ROW*

* *mm

24412 9.6305

in

P Q

30512 9.6 244

30512 9.6 244

28611.2513.5 343

2449.630512

13.5 11.25 286

13.5 11.25 286

343

343

[mm] [45]

20 508 36 914 24.5 622 12 305 15 381

3051272428.51016406102408

72428.51016406102410

30512102940.51321529143612

30512118146.514735810674215

38115118146.514735810674218

38115133352.516266412194821

15 381 18.5 470

ALL DIMENSIONS ARE IN INCHES

63525

49 1245

43 1092

G

16 406

J L

28.75 730

78731

K

31.75 806

34 864

16 406

16 406

730

730

730

31 787

31 787

E

80631.75

806

806

86434

86434

190 25 635

21 533

109243

37 940

12 305

30512

30512

30512

7.5

190

190

190

190

190

190

47018.5

47018.5

38115

38115

38115

7.5

7.5

7.5

7.5

7.5

7.5

31.75

31.75

28.75

28.75

28.75

mminmminmminmminmminmminmminmminmminmminmmin

4x5/8 ØMTG.HOLES

3 124

5

(DUCTED)REAR RETURN-OPTIONAL

CONNECTIONTERMINAL

GROMMETSWITH RUBBER

5

REMOVALFILTER

**

5.75

[146

]

1[25]

1 [25]

3[76]

8[2

03]

8[2

03]

J x

G

CK

L

B A

[16]

P


FREE SUPPLY & RETURN WITH GRILL -STANDARD

COIL IN/OUT

F

[15] [22]

[44]

1.75

D

DRAIN [19]3/4 Ø

4 REMOVALFILTER

[38]

1.5

Q

0.75

[19]

AIR VENT

5

[76]3

[76]

LEFT HAND UNIT SHOWNRIGHT HAND UNIT OPPOSITE

FOR COIL OUT, COIL IN [32]HOLES 1 1/4 Ø

AND DRAIN2.5[64]

3

[25]1

J

ENTRYCABLE

E G E

3[76]

(FRONT VIEW)

(REAL VIEW)

A

B

6 7

DYE-EC & DCYE-EC

LEGEND

1 SUPPLY FAN

2 FAN MOTOR

3 COOLING COIL

4 ACCESS PANELFILTER5SUPPLY AIR GRILL6RETURN AIR GRILL7

UNITSIZE

06

A B C D F

ADD 1.75 FOR 6 ROW*

* *mm

24412 9.6305

in

P Q

30512 9.6 244

30512 9.6 244

28611.2513.5 343

2449.630512

13.5 11.25 286

13.5 11.25 286

343

343

[mm] [45]

20 508 36 914 24.5 622 12 305 15 381

3051272428.51016406102408

72428.51016406102410

30512102940.51321529143612

30512118146.514735810674215

38115118146.514735810674218

38115133352.516266412194821

15 381 18.5 470

ALL DIMENSIONS ARE IN INCHES

63525

49 1245

43 1092

G

16 406

J L

28.75 730

78731

K

31.75 806

34 864

16 406

16 406

730

730

730

31 787

31 787

E

80631.75

806

806

86434

86434

190 25 635

21 533

109243

37 940

12 305

30512

30512

30512

7.5

190

190

190

190

190

190

47018.5

47018.5

38115

38115

38115

7.5

7.5

7.5

7.5

7.5

7.5

31.75

31.75

28.75

28.75

28.75

mminmminmminmminmminmminmminmminmminmminmmin

Dimensional Data

DYE EC and DCYE EC

Table 19



27

GUIDE SPECIFICATIONSFan Coil Units type and size shall be as indicated on the equipment schedule. Units shall be blow-thru arrangement. Units configurations shall be horizontal (suitable for ceiling suspended) or vertical (floor mounted), suitable for concealed or exposed applications with or without inlet plenum. Units shall be able to handle external static pressure up to 0.4 inwg.Units shall be installed at site as per Installation, Operation and Maintenance Manual.

Basic Unit and CabinetFan Coil Units shall include casing, fan(s), motor(s), coil, drain pan, inlet plenum and air filter. Unit casing shall be in galvanized or painted finish as indicated on the equipment schedule. Galvanized finish is standard for all models with exception of exposed units which are with painted finish as standard.

Galvanized casing shall be made of hot-dip galvanized steel sheets. Painted casing shall be made of hot-dip galvanized steel sheets, fabricated steel shall be thoroughly de-greased and then phosphatized before application of an average 60 micron baked electrostatic polyester dry powder coating in RAL 7032 color scheme. This finish can pass 1000-hour, 5% salt spray test at 95oF(35 oC) and 95% relative humidity (ASTM B117). Units casing shall be made of stainless steel or aluminum if so specified. Units casing shall be thermally and acoustically insulated with 12mm thick closed cell poly foam insulation.

Units shall be supplied with removable panels for easy access to internal components. For easy installation, ceiling suspended units shall be provided with mounting holes with rubber grommets. Units shall be supplied with free return and 1” supply air duct collar, 1” return air duct collar shall be provided, if so specified.

Fan and MotorFan shall be Forward curved, double inlet, centrifugal fan with EC motors, conforming to the standard EN 61800-5-1. Fan casing shall be galvanized sheet steel and impeller shall be sendzimir galvanized sheet steel. Fan shall be mounted on electronically commutated (EC) motor with integrated controls. Motor shall be class B, insulated with Thermal Overload Protector (TOP) and wired internally. Maximum permissible ambient motor temperature shall be +80 deg. C and minimum of -40 deg. C. Control input shall be 0-10 VDC.

CoilCoil shall be constructed of seamless Copper tubes, 3/8” OD for standard units and 5/16” OD for district cooling units, arranged in a staggered form mechanically bonded to high efficiency wavy corrugated Aluminum fins. Copper fins or Pre-coated Aluminum fins shall be provided, if so specified.

Fin spacing shall be 12 fpi for chilled water and hot water coils shall be provided as indicated on the equipment schedule. All water coils shall be provided with manual air vent, automatic air vent shall be provided, if so specified. Coil circuiting shall be counter flow (direction of coil water flow shall be counter to direction of unit airflow). Coil connections shall be sweat-type. Optional MPT or FPT connections shall be provided, if so specified. Coil shall be certified in accordance with AHRI - 410 and tested by compressed air under water to the pressure of 300 psig.

Drain PanDrain pan shall be constructed from 1mm thick zinc coated steel sheets, shall be painted, irrespective of the type of finish for unit casing, and insulated from outside with 4mm thick polyfoam insulation. Drain pan shall be constructed from Stainless steel if so specified. Drain pan shall be extended to include coil, headers and U - bends. The bottom of drain pan shall be plain and drain connection shall be ¾” OD sweat copper pipe. Auxiliary drip lip shall be supplied loose for field installation, if so specified.

FilterAir filter shall be 1” thick cleanable synthetic media and in accordance with ASHRAE 52.2 standards. 1” thick washable Aluminum media shall be provided, if so specified. Air filter is standard for all SKM Hi Static Fan Coil Units. Filter removal shall be as shown on drawings.

OptionsFollowing shall be provided if so specified:• Single deflection return air grill and double deflection supply air grill for exposed units• Discharge plenum for free standing units (floor mounted units)• Double skin casing for locations having a high temperature difference between supply air temperature and surrounding environment of the unit.

Valve Packages Valve Packages shall be field installed by customer or factory installed, if so specified. As indicated on the equipment schedule, valve packages shall consist of various combinations of gate or stop valves, globe or balancing valves, 2 - way motorized valves and 3 - way motorized valves.

ThermostatsThermostat shall be wall mounted decorative type, with large LCD and backlight. it shall be energy efficient modulating type for controlling EC fan, operating on AC 24V with 0-10V DC outputs for valves and fan.

REGIONAL OFFICES

For SKM Distributors visit:

www.skmaircon.com

Email: [email protected]

Spare Parts DivisionEmail: [email protected]

Service Centre

HEAD OFFICEP.O Box: 6004Sharjah, United Arab EmiratesTel: +971 6 514 3333Fax: +971 6 514 3300Email: [email protected] Email: [email protected]

KuwaitDasmanP.O Box: 1215-PC 15463Tel: +965 2 2492200Fax: +965 2 2494400Email: [email protected]

SKM Air Conditioning Factory Eastern provinceAD Dammam2nd industrial cityAbqiq main road Hail StreetTel: +966 3 8123332 / 4 / 5Fax: +966 3 8123337 / +966 3 8123092Email: [email protected]

Saudi Arabia (Production Facility)

AlgeriaAissat Idir ( EX-ENMA) CityBldg1, Flat 2, Dar El Beida AlgiersTel: +213 21 508197Fax: +213 21 508197Email: [email protected]

Abu DhabiP.O Box: 27788Tel: +971 2 6445223Fax: +971 2 6445145Email: [email protected]

United Arab EmiratesDubaiP.O Box: 98822Tel: +971 4 2940900Fax: +971 4 2940029Email: [email protected]

Al AinTel: +971 3 7619921Fax: +971 3 7619941Email: [email protected]

120/2015

Documents

Hi-Static Fan Coil Units with EC motor · Hi-Static. Fan Coil Units with EC motor. ... Ceiling suspended, exposed type with chilled water coils ... on/off type valves are used,