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- 19 - 

 
 

FLOOR LOADING DIAGRAM 

 
 

 

  WCFX-E 10S, 12S, 15S, 19S 

WCFX-E 108, 113, 118, 123 

  20T, 22T, 24T, 27T, 30T 
 
 
 
 

 
 
 

 

  WCFX-E 20S, 23S, 24S, 27S, 30S, 36S, 41S, 
  38T, 40T, 46T, 50T, 54T, 57T, 60T, 73T, 75T, 81T, 
  69, 73, 77, 81, 84, 87, 90 

 

 

 
 
 
 
 
 
 
 
 
 

 

POINT LOAD DATA 

Model 

WCFX-E 

P1 

P2 

P3 

P4 

P5 

P6 

P7 

P8 

P9 

Operating Weight

lbs 

kg 

lbs 

kg 

lbs 

kg 

lbs 

kg 

lbs 

kg 

lbs 

kg 

lbs 

kg 

lbs 

kg 

lbs 

kg 

lbs 

kg 

10S 

1186 

538 

1845 

837 

930 

422 

1441 

654 

- - - - - - - - - - 5402 

2450 

12S 

1382 627 2150 975 1083 491 1679 762 

6294  2855 

15S 

1452 

659 

2259 

1025

1138 

516 

1764 

800 

- - - - - - - - - - 6613 

3000 

19S 

1131 513 1545 701 1034 469 1420 644  935  424 1296 588  838  380 1171 531 

9370  4250 

20S 

1292 586 1934 877 1173 532 1764 800 1054 478 1595 724  935  424 1426 647 

11173  5068 

20T 

1786 

810 

2892 

1312

1742 

790 

2509 

1138

- - - - - - - - - - 8929 

4050 

22T 

1940 

880 

3144 

1426

1889 

857 

2727 

1237

- - - - - - - - - - 9700 

4400 

23S 

1329 603 2023 918 1210 549 1846 837 1090 494 1670 757  970  440 1493 677 

11631  5276 

24S 

1411 640 2106 955 1273 578 1918 870 1136 515 1731 785  999  453 1544 700 

12118  5497 

24T 

2094 

950 

3391 

1538

2039 

925 

2941 

1334

- - - - - - - - - - 

10465 

4747 

27S 

1468 666 2247 1019

1329 603 2049 929 1190 540 1850 839 1050 476 1651 749 

12833  5821 

27T 

2238 

1015 

3622 

1643

2178 

988 

3142 

1425

- - - - - - - - - - 

11180 

5071 

30S 

1621 735 2456 1114

1463 664 2238 1015

1305 592 2020 916 1147 520 1802 817 

14052  6374 

30T 

2482 1126 4019 1823

2414 1095 3483 1580

12398  5624 

36S 

1709 775 2838 1287

1608 729 2653 1203

1507 684 2468 1120

1406 638 2283 1036  - 

16473  7472 

38T 

1936 878 2357 1069

1793 813 2202 999 1651 749 2048 929 1510 685 1896 860 

15393  6982 

40T 

2348 1065 2859 1297

2176  987  2672 1212

2004  909  2485 1127

1832  831  2297 1042 

18673  8470 

41S 

1813 822 3055 1386

1705 773 2856 1296

1597 724 2658 1205

1489 676 2459 1115  - 

17633  7998 

46T 

2337 1060 3057 1387

2233 1013 2875 1304

2129  966  2694 1222

2025  919  2512 1140 

19863  9010 

50T 

2521 1144 3385 1536

2403 1090 3181 1443

2285 1036

2976 1350

2166  983  2771 1257 

21688  9837 

54T 

2696 1223 3713 1684

2579 1170 3489 1583

2461 1116

3265 1481

2343 1063

3041 1380 

23588  10699 

57T 

2811 1275 3809 1728

2698 1224 3590 1628

2585 1173

3371 1529

2472 1121

3151 1429 

24486  11107 

60T 

2888 1310 3897 1768

2786 1264 3677 1668

2684 1218

3456 1568

2582 1171

3236 1468 

25208  11434 

69 

3589 1628 4396 1994

3330 1511 4133 1875

3072 1393

3869 1755

2813 1276

3605 1635 

28807  13067 

73 

3910 1773 4973 2256

3616 1640 4670 2118

3322 1507

4366 1981

3029 1374

4063 1843 

31949  14492 

73T 

3733 1693 4850 2200

3255 1476 4464 2025

2777 1259

4077 1849

2298 1042

3690 1674 

29144  13220 

75T 

3840 1742 5012 2274

3354 1521 4615 2094

2868 1301

4219 1914

2382 1080

3822 1734 

30111  13658 

77 

3983 1807 5033 2283

3688 1673 4727 2144

3393 1539

4421 2005

3098 1405

4115 1867 

32458  14723 

81 

4205 1907 5454 2474

3910 1773 5125 2325

3614 1639

4796 2175

3318 1505

4467 2026 

34889  15825 

81T 

4082 1852 5504 2497

3582 1625 5076 2302

3082 1398

4647 2108

2582 1171

4218 1913 

32773  14866 

84 

4441 2014 5750 2608

4132 1874 5411 2454

3823 1734

5072 2300

3514 1594

4732 2147 

36873  16725 

87 

4538 2059 5845 2651

4228 1918 5502 2495

3917 1777

5158 2340

3606 1635

4815 2184 

37608  17059 

90 

4659 2113 6050 2744

4358 1977 5698 2585

4058 1841

5346 2425

3758 1704

4994 2265 

38920  17654 

108 

4596 2085 4993 2265

4795 2175 5348 2426

4696 2130

5171 2345

4776 2166

5053 2292 4914 2229  44342  20113 

113 

4713 2138 5141 2332

4946 2243 5523 2505

4830 2191

5332 2419

4908 2226

5215 2366 5062 2296  45669  20715 

118 

5150 2336 5729 2598

5430 2463 6176 2801

5290 2400

5953 2700

5419 2458

5785 2624 5602 2541  50533  22921 

123 

5322 2414 5919 2685

5581 2532 6363 2886

5452 2473

6141 2786

5599 2540

5955 2701 5777 2620  52109  23636 

Notes:  1.) Refer to dimensional drawings for location of mounting points. 
 

2.) Unit must be lowered onto mounting springs in a level fashion or spring damage may occur. 

Summary of Contents for WCFX-E Series

Page 1: ...Products that perform By people who care WCFX E Series 60Hz Water Cooled Rotary Screw Water Chillers Cooling Capacity 70 to 1000 TR 246 to 3517 kW R134a...

Page 2: ...atures 4 Operating Benefits 9 Typical Sequence of Operation 10 Physical Specifications 11 Dimensional Data 13 Floor Loading Diagram 19 Water Pressure Drop 20 Sound Pressure Data 26 Electrical Data 26...

Page 3: ...inimum downtime during rework of faulty or damaged compressor Dunham Bush can arrange to provide a substitute reworked compressors while the faulty compressor is being reworked or repaired D Vapor inj...

Page 4: ...exclusive electronically initiated hydraulically actuated control arrangement Positive Displacement Direct Connected The compressor is directly connected to the motor without any complicated gear sys...

Page 5: ...space is decreased and the gas pressure consequently increased Discharge Phase At a point determined by the designed built in compression ratio the discharge port is covered and the compressed gas is...

Page 6: ...hiller water temperature derivative D Evaporator Pressure D Condenser Pressure D Compressor amp draw of each compressor D Compressor elapsed run time of each compressor D Compressor starts status D Oi...

Page 7: ...em however is very similar to centrifugal water chillers and is shown in the refrigerant cycle diagram below Liquid refrigerant enters the flooded evaporator uniformly where it absorbs heat from water...

Page 8: ...g may be exposed to temperatures below freezing glycol protection is recommended if the water is not drained The recommended protection is 15 F below the minimum ambient temperature in the equipment r...

Page 9: ...D ASHRAE Standard 15 Safety Code for Mechanical Refrigeration D National Electric Code D IEEE D Optional PED Refrigerant Compatibility D Designed to operate with environmentally safe and economically...

Page 10: ...emperature is below the deadband the compressor is commanded to unload Thus the compressor capacity is continuously modulated to match applied load and hold leaving chilled water temperature at setpoi...

Page 11: ...kW 776 6 692 8 874 3 750 9 1028 4 951 3 1162 0 1168 3 1320 6 10 4 kcal h 66 8 59 6 75 2 64 6 88 4 81 8 99 9 100 5 113 6 Min Unit Capacity 25 12 5 25 12 5 25 12 5 12 5 25 12 5 Power 460 3P 60Hz Compres...

Page 12: ...2650 8 3080 2 3223 7 3354 2 3510 7 10 4 kcal h 204 8 201 2 210 9 219 6 228 0 264 9 277 2 288 5 301 9 Min Unit Capacity 8 5 12 5 8 5 8 5 8 5 8 5 8 5 8 5 8 5 Power 460 3P 60Hz Compressor Model Qty 1227...

Page 13: ...630 16 7 16 417 14 7 16 366 124 1 4 3157 4 102 45 3 16 1148 5 127 6 152 WCFX E 15S 2 1 16 53 16 7 8 429 101 7 8 2588 6 153 1 9 16 39 12 3 8 315 5 5 8 143 83 1 4 2115 28 1 8 715 18 3 16 462 15 3 8 391...

Page 14: ...530 164 3 16 4171 11 16 17 3 1 2 89 6 7 8 175 15 7 8 403 22 5 16 567 30 3 4 782 5 5 8 143 70 1778 6 152 8 203 WCFX E 30S 20 508 40 11 16 1033 40 11 16 1033 40 11 16 1033 25 635 58 1 2 1486 53 1 2 135...

Page 15: ...3 16 3866 29 1 4 743 5 5 8 143 5 5 8 143 5 5 8 143 5 5 8 143 19 3 16 487 20 3 16 513 15 1 4 387 15 1 4 387 15 1 4 387 5 5 8 143 6 7 8 175 6 7 8 175 12 5 8 321 12 5 8 321 12 7 8 327 18 1 4 464 78 7 8 2...

Page 16: ...64 1 2 1638 64 1 2 1638 86 11 16 2202 7 8 22 1 7 8 48 18 15 16 480 196 3 4 4997 1 1 2 38 3 7 8 99 8 5 8 219 20 508 28 5 16 719 39 11 16 1008 7 3 8 187 80 2032 10 254 10 254 WCFX E 60T 15 381 55 1397...

Page 17: ...2057 86 2184 7 8 22 1 7 8 48 20 5 8 524 213 3 4 5429 1 1 2 38 4 1 4 108 10 3 16 259 25 1 2 648 27 5 16 694 41 1 2 1055 8 1 8 207 88 2235 12 305 12 305 WCFX E 84 15 381 60 11 16 1541 60 11 16 1541 60...

Page 18: ...1 11 16 1312 10 3 4 273 99 2515 14 356 14 356 WCFX E 118 20 508 52 7 16 1331 52 7 16 1331 52 7 16 1331 27 686 72 5 8 1845 72 5 8 1845 129 9 16 3291 7 8 22 1 7 8 48 17 7 8 454 199 5055 1 1 2 38 3 1 2 8...

Page 19: ...50T 2521 1144 3385 1536 2403 1090 3181 1443 2285 1036 2976 1350 2166 983 2771 1257 21688 9837 54T 2696 1223 3713 1684 2579 1170 3489 1583 2461 1116 3265 1481 2343 1063 3041 1380 23588 10699 57T 2811...

Page 20: ...6T 1 10 100 1000 10000 Pressure Drop ft wg Water Flow Rate USgpm 1 10 100 100 1000 10000 Pressure Drop ft wg Water Flow Rate USgpm 46T 50T 73T 75T 81T 54T 57T 60T 20T 22T 24T 27T 30T 38T 40T 20T 22T 2...

Page 21: ...ate USgpm WATER PRESSURE DROP IMPERIAL UNITS 1C EVAPORATOR 3 PASS a Single Compressor b Twin Compressors c Three Compressors 2A CONDENSER 1 PASS a Single Compressor b Twin Compressors c Three Compress...

Page 22: ...Rate USgpm WATER PRESSURE DROP IMPERIAL UNITS 2B CONDENSER 2 PASS a Single Compressor b Twin Compressors c Three Compressors 2C CONDENSER 3 PASS a Single Compressor b Twin Compressors c Three Compress...

Page 23: ...10 100 1000 100 1000 10000 Pressure Drop kPa Water Flow Rate m hr 57T 60T 73T 75T 81T 10 100 100 1000 10000 Pressure Drop kPa Water Flow Rate m hr 20T 22T 24T 40T 38T 27T 30T 54T 50T 46T 40T 20T 22T 2...

Page 24: ...WATER PRESSURE DROP SI UNITS 1C EVAPORATOR 3 PASS a Single Compressor b Twin Compressors c Three Compressors 2A CONDENSER 1 PASS a Single Compressor b Twin Compressors c Three Compressors Note Above...

Page 25: ...ER PRESSURE DROP SI UNITS 2B CONDENSER 2 PASS a Single Compressor b Twin Compressors c Three Compressors 2C CONDENSER 3 PASS a Single Compressor b Twin Compressors c Three Compressors Note Above water...

Page 26: ...0 408 3 612 4 20S 460VAC 10 400 200 1222 1 154 499 749 20T 460VAC 10 300 200 1210 2 78 0 2 283 0 2 424 5 2 22T 460VAC 10 400 200 1210 1 1212 1 78 0 104 0 283 0 392 0 424 5 588 0 23S 460VAC 10 400 200...

Page 27: ...27 TYPICAL WIRING SCHEMATIC Two Compressors Unit...

Page 28: ...28 TYPICAL WIRING SCHEMATIC...

Page 29: ...29 TYPICAL WIRING SCHEMATIC...

Page 30: ...30 TYPICAL WIRING SCHEMATIC...

Page 31: ...31 TYPICAL WIRING SCHEMATIC...

Page 32: ...only the capacity required for the variable heating load This would enable the remainder of the base cooling load to be handled by a separate chiller utilizing evaporator entering condensing water tem...

Page 33: ...e point floating or tri state control and the analog can be used to drive a 0 10 vdc actuator Thus even though there has been a trend toward fan cycling control of cooling towers it is not a device th...

Page 34: ...ages can be controlled via an Equipment Management Center D Unit mounted disconnect switch 400 to 575 volts applications D Flanged semi hermetic compressor D Discharge service valve for MSC 226 series...

Page 35: ...ompressor loading based on leaving chilled water temperature It shall provide for high and low refrigerant pressure protection low oil level protection evaporator water freeze protection sensor error...

Page 36: ......

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