Westair water cooled chillers - Westair Industries Inc.Compressors. Screw semihermetic with built-in...

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R134a Water Cooled Chillers WCWWXT/Y Series (76 - 703 Ton)R134a Water Cooled Chillers WCWWXT/Y Series (76 - 703 Ton)

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INDEX Page

� General description 3� Versions 3� Technical features 3� Factory fitted accessories 3� Loose accessories 3� Reference conditions 3� Operating range 3� Technical data 4-5� Cooling and heating capacity 6- 7� Water circuit pressure drops - Evaporator 8� Evaporator water flow limits 8� Correction factors - Evaporator 8

� Evaporator fouling factorscorrections 8

� Water circuit pressure drops - Condenser 9� Condenser water flow limits 9� Correction factors - Condenser 9

� Condenser fouling factorscorrections 9

� Refrigeration circuit diagram:Cooling only units 10-11

� Dimensions, weights and clearances 12-16� Water circuit 17� Sound pressure level 18� Microprocessor control system 19� Wiring diagrams 20-23� Wiring diagrams explanation 24

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GENERAL DESCRIPTION

The Water cooled liquid chiller units for indoor installation. The range consists of 18 models covering a cooling capacity from 260 to 2470 kW.

VERSIONS:WCWW/Y - cooling onlyWCWW/Y/SSL - super silenced cooling only

TECHNICAL FEATURES:Frame. The unit features a galvanized steel frame further pro-tected with polyester powder painting. The frame supports the main components and allows easy acess for maintenance and other necessary operations.Compressors. Screw semihermetic with built-in oil separator,

hot gas shut off valves.Condenser. Shell and tube type, with easily removable cast iron heads to enable acess for maintenance operations. Each refrigerant circuit is supplied with an indipendent condenser. Water connections for cooling tower operation.Evaporator. Shell and tube type, with two independent refriger-ants circuits (1302-B - 6002-B) or three indipendent refrigerants circuits (6603-B - 9003-B) and one water circuit.Electrical board. Includes: main switch with door safety interlock; fuses, overload protection for compressors; interface relays and electrical terminals for external connections.Microprocessor for automatic control of the unit allowing con-tinuous display of the operational status of the unit, control set and real water temperature and, in case of partial or total block of the unit, indication of security device that intervened.Refrigerant circuit. Each unit includes two (1302-B-6002-B) or three (6603-B-9003-B) independent refrigerant circuits. Produced in copper tubing, all models have the following components:electronic expansion valve, filter-drier, level and humidity indicator,pressure transducer, high and low pressure switches (with fixedsetting) and safety valve.Water circuit. Includes: evaporator, temperature sensor, anti-freeze sensor, air vent and water drain.

FACTORY FITTED ACCESSORIES:IM - Magnetothermic switches instead of fuses and thermal relays.RZ - Stepless regulation of the compressors to adjust the cooling capacity to the termic load of the system.HR - Desuperheater with 20% heat recovery.HRT - Total heat recovery for 100% heat recovery.RF - Cooling circuit shut off valve on liquid line.FE - Evaporator heater with thermostatic control.SS - Soft start to reduce compressor starting current.DP - Device for the heat pump functioning. Includes: water inlet and outlet temperature sensors on the condenser to control the compressor start and stop.WM - Web Monitoring: monitoring enables remote management of the system through communication protocols, GPRS/GSM/TCP-IP. Authorized users have access to a dashboard display that provides critical system information from which the user can measure, manage and report as necessary.CP - Potential free contacts for remote alarm and control.

suction filter, cranckcase heater, oil sight glass, thermal protection,

REFERENCE CONDITIONS

All technical data, indicated on pages 4 & 5, refer to the following unit operating conditions:- Cooling: • entering water temperature 12°C. • leaving water temperature 7°C. • condenser entering water temperature 30°C. • condenser leaving water temperature 35°C.- Heating: • entering water temperature 40°C. • leaving water temperature 45°C. • evaporator entering water temperature 10°C.- sound pressure level (DIN 45635):

from the ground. According to DIN 45635.- Sound pressure level (ISO 3744):

The power supply is 400V/3Ph/50Hz; auxiliary supply is 230V/1Ph/50Hz.

LOOSE ACCESSORIES:MN - High and low pressure gauges for every refrigeration circuit.CR - Remote control panel to be inserted in the room for remote control of the unit, with the same functions as that inserted in the machine.IS - RS 485 serial interface for connection to controls and centralized supervision systems.PV3 - 3-ways pressostatic valve to control the condensa-tion.AG - Rubber vibration dampers to be inserted at the bottom

where the machine is installed.AM - Spring shock absorbers to be inserted at the bottom of

where the machine is installed.FL - Flow switch

of the unit to dampen possible vibrations due to the type of floor

the unit to dampen possible vibrations due to the type of floor

to prevent any water flow interruption.

measured in free field conditions at 1m from the unit and at 1,5m

measured in free field conditions at 1m. As defined by ISO 3744.

(1) In all cases the water range will have to re-enter within the reported limits on page 8-9.

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°C 8 20

°C 5 15

°C 3 9

°C 10 45

°C 25 50

°C 4 12

°C - 8

kPa 1000

kPa 1000

Evaporator inlet water temperature

Evaporator outlet water temperature

Evaporator water thermal difference (1)

Condenser inlet water temperature

Condenser outlet water temperature

Condenser water thermal difference (1)

Min. chilled water/glycol temperature

Max. operating pressure evaporator water side

Max. operating pressure condenser water side

OPERATING RANGE

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TECHNICAL DATA

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kW 267 323 374 426 488 577 660 750 892kW 57 69 80 90 99 123 136 150 182

kW 293 354 409 465 533 628 719 819 977kW 67 80 93 105 120 149 166 185 221

n° 2 2 2 2 2 2 2 2 2n° 2 2 2 2 2 2 2 2 2% 6 6 6 6 6 6 6 6 6

l/s 12,76 15,43 17,87 20,35 23,32 27,57 31,53 35,83 42,62kPa 51 43 55 60 48 61 67 66 47DN 100 125 125 125 125 150 150 150 200dm³ 89 137 137 178 131 263 250 229 353

l/s 15,48 18,71 21,67 24,67 28,00 33,43 38,00 42,99 51,32kPa 43 49 51 47 36 52 48 45 57DN 65 65 65 65 80 80 80 80 80dm³ 27 30 34 42 56 56 66 77 84

kW 28,5 34,4 39,8 45,2 49,4 61,3 67,9 74,9 91,1A 48 59 64 74 81 101 112 117 143

Kg 10 10 10 10 18 18 18 20 20

dB(A) 80 80 81 81 80 81 81 83 84dB(A) 69 69 70 70 69 70 70 72 73Kg 45 45 42 55 60 65 90 90 95

mm 3550 3550 3300 3300 3300 3500 3500 3600 3600mm 800 800 1400 1400 1400 1450 1450 1650 1650mm 2000 2000 2150 2150 2150 2150 2150 2150 2150Kg 2124 2183 2309 2340 2973 3121 3174 4274 4613

dB(A) 75 75 76 76 75 76 76 78 79dB(A) 64 64 65 65 64 65 65 67 68

Kg 45 45 42 55 60 65 90 90 95

mm 3550 3550 3300 3300 3300 3500 3500 3600 3600mm 800 800 1400 1400 1400 1450 1450 1650 1650mm 2000 2000 2150 2150 2150 2150 2150 2150 2150Kg 2374 2433 2559 2590 3323 3471 3524 4724 5063

V/Ph/Hz <- - - - - - - - - - - - - - - - - - - - - - - - - - 400 / 3 / 50 - - - - - - - - - - - - - - - - - - - - - - - - - ->A 178 214 238 270 292 354 398 438 456A 247 265 333 349 448 479 501 566 575

MODEL

Cooling:Cooling Capacity (1)Absorbed power (1)

Heating:Heating capacity (1)Absorbed power (1)

CompressorsRefrigerant CircuitsCapacity steps

Evaporator:

Pressure drops (1)Water connectionsWater volume

Condenser:


Compressor:Unitary absorbed power (1)Unitary absorbed current (1)Oil charge

Standard version:Sound pressure level - DIN (1)Sound pressure level - ISO (1)Refrigerant charge R134a

Unit lenghtWidthHeightUnit transport weight

SSL version:Sound pressure level - DIN (1)Sound pressure level - ISO (1)Refrigerant charge R134a

Cooling only unit lenghtWidthHeight

Cooling only unit transport weight

Total electrical consumption:Power supplyMax. CurrentStarting current

Water flow (1)

(1) Referential conditions on page 3.

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1049 1159 1286 1438 1612 1789 1981 2204 2473 kW210 234 256 287 323 357 395 443 500 kW

1146 1245 1372 1528 1709 1895 2069 2301 2589 kW259 296 332 377 413 444 497 556 620 kW

2 2 2 2 2 3 3 3 3 n°2 2 2 2 2 3 3 3 3 n°6 6 6 6 6 9 9 9 9 %

50,12 55,37 61,44 68,70 77,02 85,47 94,65 105,30 118,15 l/s62 51 59 65 81 77 74 65 119 kPa200 200 200 200 200 250 250 250 250 DN353 435 435 510 500 545 680 715 725 dm³

60,17 66,55 73,67 82,42 92,45 102,53 113,52 126,47 142,04 l/s49 66 77 66 63 66 78 73 63 kPa100 100 100 100 125 100 100 100 125 DN102 135 145 150 190 205 220 235 295 dm³

105 117 128 143 161 119 132 148 167 kW166 191 212 235 265 194 218 242 273 A20 23 25 25 25 23 25 25 25 Kg

85 90 91 95 97 93 95 96 99 dB(A)74 78 79 83 85 80 82 83 87 dB(A)125 154 160 164 250 231 240 225 375 Kg

3600 4800 4800 5200 5200 5200 5200 5500 5500 mm1650 1800 1800 1800 1800 2200 2200 2200 2200 mm2150 2150 2150 2150 2150 2150 2150 2150 2150 mm4645 4650 5360 5440 6000 7050 8450 8600 9250 Kg

80 85 86 90 92 --- --- --- --- dB(A)69 73 74 78 80 --- --- --- --- dB(A)

125 154 160 136 250 --- --- --- --- Kg

3600 4800 4800 5200 5200 --- --- --- --- mm1650 1800 1800 1800 1800 --- --- --- --- mm2150 2150 2150 2150 2150 --- --- --- --- mm5095 5100 5860 5940 6500 --- --- --- --- Kg

<- - - - - - - - - - - - - - - - - - - - - - - - - - 400 / 3 / 50 - - - - - - - - - - - - - - - - - - - - - - - - - -> V/Ph/Hz536 552 660 734 804 828 990 1101 1206 A615 738 774 952 1067 931 988 1187 1337 A

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TECHNICAL DATA

MODEL




Evaporator:


Condenser:









Water flow (1)


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TECHNICAL DATA

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kW 267 323 374 426 488 577 660 750 892kW 57 69 80 90 99 123 136 150 182

kW 293 354 409 465 533 628 719 819 977kW 67 80 93 105 120 149 166 185 221

n° 2 2 2 2 2 2 2 2 2n° 2 2 2 2 2 2 2 2 2% 6 6 6 6 6 6 6 6 6

l/s 12,76 15,43 17,87 20,35 23,32 27,57 31,53 35,83 42,62kPa 51 43 55 60 48 61 67 66 47DN 100 125 125 125 125 150 150 150 200dm³ 89 137 137 178 131 263 250 229 353

l/s 15,48 18,71 21,67 24,67 28,00 33,43 38,00 42,99 51,32kPa 43 49 51 47 36 52 48 45 57DN 65 65 65 65 80 80 80 80 80dm³ 27 30 34 42 56 56 66 77 84

kW 28,5 34,4 39,8 45,2 49,4 61,3 67,9 74,9 91,1A 48 59 64 74 81 101 112 117 143

Kg 10 10 10 10 18 18 18 20 20

dB(A) 80 80 81 81 80 81 81 83 84dB(A) 69 69 70 70 69 70 70 72 73Kg 45 45 42 55 60 65 90 90 95

mm 3550 3550 3300 3300 3300 3500 3500 3600 3600mm 800 800 1400 1400 1400 1450 1450 1650 1650mm 2000 2000 2150 2150 2150 2150 2150 2150 2150Kg 2124 2183 2309 2340 2973 3121 3174 4274 4613

dB(A) 75 75 76 76 75 76 76 78 79dB(A) 64 64 65 65 64 65 65 67 68

Kg 45 45 42 55 60 65 90 90 95

mm 3550 3550 3300 3300 3300 3500 3500 3600 3600mm 800 800 1400 1400 1400 1450 1450 1650 1650mm 2000 2000 2150 2150 2150 2150 2150 2150 2150Kg 2374 2433 2559 2590 3323 3471 3524 4724 5063

V/Ph/Hz <- - - - - - - - - - - - - - - - - - - - - - - - - - 400 / 3 / 50 - - - - - - - - - - - - - - - - - - - - - - - - - ->A 178 214 238 270 292 354 398 438 456A 247 265 333 349 448 479 501 566 575

MODEL




Evaporator:


Condenser:









Water flow (1)


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1049 1159 1286 1438 1612 1789 1981 2204 2473 kW210 234 256 287 323 357 395 443 500 kW

1146 1245 1372 1528 1709 1895 2069 2301 2589 kW259 296 332 377 413 444 497 556 620 kW

2 2 2 2 2 3 3 3 3 n°2 2 2 2 2 3 3 3 3 n°6 6 6 6 6 9 9 9 9 %

50,12 55,37 61,44 68,70 77,02 85,47 94,65 105,30 118,15 l/s62 51 59 65 81 77 74 65 119 kPa200 200 200 200 200 250 250 250 250 DN353 435 435 510 500 545 680 715 725 dm³

60,17 66,55 73,67 82,42 92,45 102,53 113,52 126,47 142,04 l/s49 66 77 66 63 66 78 73 63 kPa100 100 100 100 125 100 100 100 125 DN102 135 145 150 190 205 220 235 295 dm³

105 117 128 143 161 119 132 148 167 kW166 191 212 235 265 194 218 242 273 A20 23 25 25 25 23 25 25 25 Kg

85 90 91 95 97 93 95 96 99 dB(A)74 78 79 83 85 80 82 83 87 dB(A)125 154 160 164 250 231 240 225 375 Kg

3600 4800 4800 5200 5200 5200 5200 5500 5500 mm1650 1800 1800 1800 1800 2200 2200 2200 2200 mm2150 2150 2150 2150 2150 2150 2150 2150 2150 mm4645 4650 5360 5440 6000 7050 8450 8600 9250 Kg

80 85 86 90 92 --- --- --- --- dB(A)69 73 74 78 80 --- --- --- --- dB(A)

125 154 160 136 250 --- --- --- --- Kg

3600 4800 4800 5200 5200 --- --- --- --- mm1650 1800 1800 1800 1800 --- --- --- --- mm2150 2150 2150 2150 2150 --- --- --- --- mm5095 5100 5860 5940 6500 --- --- --- --- Kg

<- - - - - - - - - - - - - - - - - - - - - - - - - - 400 / 3 / 50 - - - - - - - - - - - - - - - - - - - - - - - - - -> V/Ph/Hz536 552 660 734 804 828 990 1101 1206 A615 738 774 952 1067 931 988 1187 1337 A

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TECHNICAL DATA

MODEL




Evaporator:


Condenser:









Water flow (1)


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To(°C)30 �� 40 45

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5 262 50,9 313 249 55,6 305 235 60,8 296 220 66,6 2876 271 51,5 323 258 56,4 314 244 61,6 306 228 67,3 295� 280 52,2 332 �� 253 62,2 315 237 67,8 3058 291 53,0 344 276 57,8 334 261 63,0 324 245 68,5 3149 300 53,6 354 285 58,5 344 270 63,7 334 254 69,2 32310 310 54,5 365 295 59,2 354 280 64,4 344 262 70,2 332

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5 317 61,3 378 301 67,1 368 285 73,5 359 267 80,4 3476 328 62,2 390 312 67,9 380 296 74,2 370 277 81,1 358� 339 62,9 402 �� 306 75,0 381 288 82,0 3708 351 63,7 415 335 69,6 405 316 75,9 392 298 82,6 3819 363 64,6 428 345 70,5 416 327 76,8 404 308 83,5 39210 375 65,5 441 357 71,3 428 338 77,5 416 319 84,2 403

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5 367 71,1 438 349 77,7 427 330 84,9 415 310 92,9 4036 380 71,9 452 361 78,8 440 342 85,9 428 322 93,7 416� 393 72,8 466 �� 354 86,9 441 333 94,5 4288 406 73,6 480 387 80,6 468 366 87,7 454 347 95,6 4439 420 74,7 495 400 81,5 482 379 88,7 468 358 96,3 45410 433 75,7 509 413 82,6 496 392 89,8 482 370 97,2 467

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5 418 80,7 499 397 88,2 485 376 96,5 473 354 106 4606 433 81,6 515 412 89,2 501 390 97,5 488 367 106 473� 447 82,6 530 �� 404 98,7 503 379 107 4868 463 83,7 547 441 91,4 532 418 99,6 518 393 109 5029 479 84,8 564 455 92,6 548 432 101 533 408 110 51810 494 85,8 580 472 93,7 566 447 102 549 422 111 533

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5 479 87.0 566 455 97,8 553 430 109 539 406 120 5266 495 87,6 583 471 98,3 569 447 109 556 420 121 541� 511 88,1 599 �� 463 110 573 437 122 5598 530 88,7 619 504 99,3 603 478 111 589 451 123 5749 548 89,0 637 523 100 623 496 112 608 467 124 59110 566 89,6 656 540 100 640 512 112 624 483 126 609

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5 567 108 675 538 121 659 510 135 645 477 149 6266 586 109 695 558 122 680 527 136 663 496 150 646� 608 110 718 �� 546 137 683 515 151 6668 628 110 738 597 124 721 566 138 704 533 152 6859 647 111 758 618 124 742 586 138 724 550 153 70310 671 112 783 638 125 763 605 139 744 569 154 723

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5 648 120 768 615 134 749 582 149 731 546 165 7116 671 121 792 637 135 772 602 150 752 566 166 732� 694 121 815 �� 623 151 774 585 167 7528 717 122 839 684 137 821 646 152 798 607 168 7759 743 123 866 705 138 843 667 153 820 627 169 79610 765 124 889 729 139 868 690 154 844 650 171 821

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5 736 132 868 698 148 846 658 166 824 618 184 8026 761 133 894 724 149 873 682 166 848 642 185 827� 787 134 921 �� 707 167 874 665 185 8508 815 135 950 773 151 924 733 168 901 688 186 8749 842 136 978 800 152 952 759 169 928 713 187 90010 871 137 1008 828 153 981 785 170 955 739 188 927

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5 876 161 1037 831 179 1010 783 199 982 736 220 9566 907 162 1069 861 181 1042 814 200 1014 761 222 983� 942 163 1105 �� 841 202 1043 789 223 10128 970 165 1135 923 184 1107 871 204 1075 817 225 10429 1006 166 1172 953 185 1138 903 205 1108 848 226 107410 1038 168 1206 987 187 1174 934 207 1141 878 228 1106

kWf: Cooling capacity (kW).kWt: Heating capacity (kW).kWe: Power input (kW).To: Evaporator leaving water temperature ( ∆t in./out = 5K).

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COOLING AND HEATING CAPACITY

CONDENSER LEAVING WATER TEMPERATURE °C

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To(°C)30 �� 40 45

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5 1032 186 1218 979 207 1186 921 230 1151 865 255 11206 1065 187 1252 1013 209 1222 957 231 1188 898 256 1154� 1104 189 1293 �� 990 233 1223 931 257 11888 1141 190 1331 1085 212 1297 1023 235 1258 966 259 12259 1181 192 1373 1122 214 1336 1064 237 1301 995 260 125510 1219 193 1412 1158 215 1373 1097 238 1335 1034 262 1296

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5 1138 207 1345 1080 230 1310 1017 256 1273 956 283 12396 1178 208 1386 1119 233 1352 1058 257 1315 989 285 1274� 1224 210 1434 �� 1093 260 1353 1025 287 13128 1260 212 1472 1199 237 1436 1132 262 1394 1062 289 13519 1307 213 1520 1238 238 1476 1173 264 1437 1102 291 139310 1349 216 1565 1282 240 1522 1214 266 1480 1141 293 1434

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5 1263 226 1489 1198 252 1450 1129 280 1409 1061 309 13706 1308 228 1536 1241 255 1496 1174 281 1455 1097 312 1409� 1358 229 1587 �� 1212 284 1496 1138 314 14528 1398 232 1630 1331 259 1590 1256 287 1543 1178 316 14949 1450 233 1683 1374 260 1634 1302 288 1590 1223 318 154110 1496 236 1732 1423 263 1686 1347 291 1638 1266 321 1587

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5 1412 254 1666 1340 282 1622 1262 314 1576 1187 347 15346 1462 255 1717 1388 285 1673 1312 315 1627 1227 350 1577� 1519 257 1776 �� 1356 319 1675 1272 352 16248 1564 260 1824 1488 290 1778 1404 322 1726 1317 355 16729 1622 262 1884 1536 292 1828 1456 323 1779 1367 356 172310 1673 265 1938 1591 295 1886 1506 326 1832 1415 360 1775

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5 1583 286 1869 1502 318 1820 1415 353 1768 1330 390 17206 1639 288 1927 1556 321 1877 1471 355 1826 1375 394 1769� 1702 289 1991 �� 1520 358 1878 1426 396 18228 1753 293 2046 1668 327 1995 1574 362 1936 1476 399 18759 1818 295 2113 1722 328 2050 1632 364 1996 1532 401 193310 1876 298 2174 1784 332 2116 1688 367 2055 1587 405 1992

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5 1757 316 2073 1667 351 2018 1570 390 1960 1476 432 19086 1819 318 2137 1727 355 2082 1633 392 2025 1526 435 1961� 1889 320 2209 �� 1687 396 2083 1582 437 20198 1945 324 2269 1851 361 2212 1747 400 2147 1639 441 20809 2018 326 2344 1911 363 2274 1811 402 2213 1701 443 214410 2082 330 2412 1980 367 2347 1873 406 2279 1761 447 2208

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5 1945 349 2294 1846 388 2234 1739 432 2171 1635 477 21126 2014 352 2366 1912 393 2305 1808 434 2242 1690 482 2172� 2092 354 2446 �� 1868 438 2306 1752 484 22368 2154 358 2512 2050 399 2449 1934 443 2377 1814 488 23029 2234 360 2594 2116 402 2518 2005 445 2450 1883 490 237310 2305 365 2670 2192 406 2598 2074 449 2523 1950 495 2445

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5 2164 392 2556 2053 436 2489 1935 484 2419 1819 535 23546 2241 394 2635 2127 441 2568 2011 487 2498 1880 540 2420� 2328 397 2725 �� 2078 492 2570 1950 543 24938 2397 402 2799 2281 448 2729 2152 497 2649 2019 548 25679 2486 404 2890 2355 450 2805 2231 499 2730 2095 550 264510 2565 409 2974 2439 455 2894 2308 504 2812 2169 555 2724

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5 2429 442 2871 2304 492 2796 2171 547 2718 2041 604 26456 2515 445 2960 2387 497 2884 2257 549 2806 2110 610 2720� 2612 448 3060 �� 2332 555 2887 2187 613 28008 2689 453 3142 2559 505 3064 2415 560 2975 2265 618 28839 2789 456 3245 2642 508 3150 2503 563 3066 2351 621 297210 2878 462 3340 2736 514 3250 2589 569 3158 2434 626 3060


� ��CONDENSER LEAVING WATER TEMPERATURE °C


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To(°C)30 �� 40 45

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5 262 50,9 313 249 55,6 305 235 60,8 296 220 66,6 2876 271 51,5 323 258 56,4 314 244 61,6 306 228 67,3 295� 280 52,2 332 �� 253 62,2 315 237 67,8 3058 291 53,0 344 276 57,8 334 261 63,0 324 245 68,5 3149 300 53,6 354 285 58,5 344 270 63,7 334 254 69,2 32310 310 54,5 365 295 59,2 354 280 64,4 344 262 70,2 332

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5 317 61,3 378 301 67,1 368 285 73,5 359 267 80,4 3476 328 62,2 390 312 67,9 380 296 74,2 370 277 81,1 358� 339 62,9 402 �� 306 75,0 381 288 82,0 3708 351 63,7 415 335 69,6 405 316 75,9 392 298 82,6 3819 363 64,6 428 345 70,5 416 327 76,8 404 308 83,5 39210 375 65,5 441 357 71,3 428 338 77,5 416 319 84,2 403

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5 367 71,1 438 349 77,7 427 330 84,9 415 310 92,9 4036 380 71,9 452 361 78,8 440 342 85,9 428 322 93,7 416� 393 72,8 466 �� 354 86,9 441 333 94,5 4288 406 73,6 480 387 80,6 468 366 87,7 454 347 95,6 4439 420 74,7 495 400 81,5 482 379 88,7 468 358 96,3 45410 433 75,7 509 413 82,6 496 392 89,8 482 370 97,2 467

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5 418 80,7 499 397 88,2 485 376 96,5 473 354 106 4606 433 81,6 515 412 89,2 501 390 97,5 488 367 106 473� 447 82,6 530 �� 404 98,7 503 379 107 4868 463 83,7 547 441 91,4 532 418 99,6 518 393 109 5029 479 84,8 564 455 92,6 548 432 101 533 408 110 51810 494 85,8 580 472 93,7 566 447 102 549 422 111 533

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5 479 87.0 566 455 97,8 553 430 109 539 406 120 5266 495 87,6 583 471 98,3 569 447 109 556 420 121 541� 511 88,1 599 �� 463 110 573 437 122 5598 530 88,7 619 504 99,3 603 478 111 589 451 123 5749 548 89,0 637 523 100 623 496 112 608 467 124 59110 566 89,6 656 540 100 640 512 112 624 483 126 609

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5 567 108 675 538 121 659 510 135 645 477 149 6266 586 109 695 558 122 680 527 136 663 496 150 646� 608 110 718 �� 546 137 683 515 151 6668 628 110 738 597 124 721 566 138 704 533 152 6859 647 111 758 618 124 742 586 138 724 550 153 70310 671 112 783 638 125 763 605 139 744 569 154 723

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5 648 120 768 615 134 749 582 149 731 546 165 7116 671 121 792 637 135 772 602 150 752 566 166 732� 694 121 815 �� 623 151 774 585 167 7528 717 122 839 684 137 821 646 152 798 607 168 7759 743 123 866 705 138 843 667 153 820 627 169 79610 765 124 889 729 139 868 690 154 844 650 171 821

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5 736 132 868 698 148 846 658 166 824 618 184 8026 761 133 894 724 149 873 682 166 848 642 185 827� 787 134 921 �� 707 167 874 665 185 8508 815 135 950 773 151 924 733 168 901 688 186 8749 842 136 978 800 152 952 759 169 928 713 187 90010 871 137 1008 828 153 981 785 170 955 739 188 927

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5 876 161 1037 831 179 1010 783 199 982 736 220 9566 907 162 1069 861 181 1042 814 200 1014 761 222 983� 942 163 1105 �� 841 202 1043 789 223 10128 970 165 1135 923 184 1107 871 204 1075 817 225 10429 1006 166 1172 953 185 1138 903 205 1108 848 226 107410 1038 168 1206 987 187 1174 934 207 1141 878 228 1106


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CONDENSER LEAVING WATER TEMPERATURE °C

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To(°C)30 �� 40 45

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5 1032 186 1218 979 207 1186 921 230 1151 865 255 11206 1065 187 1252 1013 209 1222 957 231 1188 898 256 1154� 1104 189 1293 �� 990 233 1223 931 257 11888 1141 190 1331 1085 212 1297 1023 235 1258 966 259 12259 1181 192 1373 1122 214 1336 1064 237 1301 995 260 125510 1219 193 1412 1158 215 1373 1097 238 1335 1034 262 1296

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5 1138 207 1345 1080 230 1310 1017 256 1273 956 283 12396 1178 208 1386 1119 233 1352 1058 257 1315 989 285 1274� 1224 210 1434 �� 1093 260 1353 1025 287 13128 1260 212 1472 1199 237 1436 1132 262 1394 1062 289 13519 1307 213 1520 1238 238 1476 1173 264 1437 1102 291 139310 1349 216 1565 1282 240 1522 1214 266 1480 1141 293 1434

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5 1263 226 1489 1198 252 1450 1129 280 1409 1061 309 13706 1308 228 1536 1241 255 1496 1174 281 1455 1097 312 1409� 1358 229 1587 �� 1212 284 1496 1138 314 14528 1398 232 1630 1331 259 1590 1256 287 1543 1178 316 14949 1450 233 1683 1374 260 1634 1302 288 1590 1223 318 154110 1496 236 1732 1423 263 1686 1347 291 1638 1266 321 1587

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5 1412 254 1666 1340 282 1622 1262 314 1576 1187 347 15346 1462 255 1717 1388 285 1673 1312 315 1627 1227 350 1577� 1519 257 1776 �� 1356 319 1675 1272 352 16248 1564 260 1824 1488 290 1778 1404 322 1726 1317 355 16729 1622 262 1884 1536 292 1828 1456 323 1779 1367 356 172310 1673 265 1938 1591 295 1886 1506 326 1832 1415 360 1775

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5 1583 286 1869 1502 318 1820 1415 353 1768 1330 390 17206 1639 288 1927 1556 321 1877 1471 355 1826 1375 394 1769� 1702 289 1991 �� 1520 358 1878 1426 396 18228 1753 293 2046 1668 327 1995 1574 362 1936 1476 399 18759 1818 295 2113 1722 328 2050 1632 364 1996 1532 401 193310 1876 298 2174 1784 332 2116 1688 367 2055 1587 405 1992

��

5 1757 316 2073 1667 351 2018 1570 390 1960 1476 432 19086 1819 318 2137 1727 355 2082 1633 392 2025 1526 435 1961� 1889 320 2209 �� 1687 396 2083 1582 437 20198 1945 324 2269 1851 361 2212 1747 400 2147 1639 441 20809 2018 326 2344 1911 363 2274 1811 402 2213 1701 443 214410 2082 330 2412 1980 367 2347 1873 406 2279 1761 447 2208

��

5 1945 349 2294 1846 388 2234 1739 432 2171 1635 477 21126 2014 352 2366 1912 393 2305 1808 434 2242 1690 482 2172� 2092 354 2446 �� 1868 438 2306 1752 484 22368 2154 358 2512 2050 399 2449 1934 443 2377 1814 488 23029 2234 360 2594 2116 402 2518 2005 445 2450 1883 490 237310 2305 365 2670 2192 406 2598 2074 449 2523 1950 495 2445

��

5 2164 392 2556 2053 436 2489 1935 484 2419 1819 535 23546 2241 394 2635 2127 441 2568 2011 487 2498 1880 540 2420� 2328 397 2725 �� 2078 492 2570 1950 543 24938 2397 402 2799 2281 448 2729 2152 497 2649 2019 548 25679 2486 404 2890 2355 450 2805 2231 499 2730 2095 550 264510 2565 409 2974 2439 455 2894 2308 504 2812 2169 555 2724

��

5 2429 442 2871 2304 492 2796 2171 547 2718 2041 604 26456 2515 445 2960 2387 497 2884 2257 549 2806 2110 610 2720� 2612 448 3060 �� 2332 555 2887 2187 613 28008 2689 453 3142 2559 505 3064 2415 560 2975 2265 618 28839 2789 456 3245 2642 508 3150 2503 563 3066 2351 621 297210 2878 462 3340 2736 514 3250 2589 569 3158 2434 626 3060


� ��CONDENSER LEAVING WATER TEMPERATURE °C


8�

CORRECTION FACTORS

If an unit is made to operate with a glycol-water solution,the following correction factors should be applied to any calculations.

WATER CIRCUIT PRESSURE DROPS: Evaporator

��

Water flow limits

��

�� 5,0 14,6�� 6,4 18,1�� 6,8 19,1�� 7,4 21,7�� 8,1 24,8�� 9,2 28,9�� 11,0 34,3�� 11,3 37,2�� 17,0 50,0�� 18,2 54,1�� 19,8 64,4�� 19,8 64,4�� 23,8 78,1�� 27,4 89,2�� 29,7 96,6�� 29,7 96,6�� 35,9 117�� 41,1 134

EVAPORATOR FOULINGFACTOR CORRECTIONS

f1: capacity correction factors;fp1: compressor power input correction factor; unit performances reported in the

tables are given for the condition of clean exchanger (fouling factor = 0). For different fouling factors values, unit performances should be corrected with the correction factors shown above.

�� 0 Clean evaporator 1 10,44 x 10-4 (m² °C/W) 0,98 0,990,88 x 10-4 (m² °C/W) 0,96 0,991,76 x 10-4 (m² °C/W) 0,93 0,98

10

20

30

40

50

60

70

80

90100

120

150

3020177,0 8,0 9,0 10 50 60 70 80 90 100 110120 15017040

� �� Ethylene glycol

percent by weight (%)

0 -4,5 -9,5 -15,5 -21,5 -32,5Freezing point ( °C)1 0,975 0,95 0,93 0,91 0,88Cooling capacity corr. factor1 1,01 0,995 0,990 0,985 0,975Power input corr. factor1 1,01 1,04 1,08 1,14 1,20

1 1,05 1,13 1,21 1,26 1,32Pressure drop corr. factorMixture flow corr. factor

��

60

70

90

80

100

120

50

40

30

2010 20 40 60 80 100 130 150 200

Condenser

Water flow limits

��

�� 5,6 17,6�� 6,3 19,8�� 7,1 23,0�� 8,7 26,5�� 11,1 31,2�� 11,1 37,2�� 13,4 40,8�� 15,8 48,6�� 17,4 54,9�� 20,6 65,8�� 20,6 79,0�� 22,1 86,2�� 23,9 93,6�� 27,3 107�� 29,7 115�� 33,1 129�� 35,9 140�� 41,0 160

WATER CIRCUIT PRESSURE DROPS: Condenser

CONDENSER FOULING FACTOR CORRECTIONS


tables are given for the condition of exchanger with fouling factor = 0,44 x 10-4 (m² °C/W) . For different fouling factors values, unit performances should be corrected with the correction factors shown above.

�� 0,44 x 10-4 (m² °C/W) 1 10,88 x 10-4 (m² °C/W) 0,987 1,0211,76 x 10-4 (m² °C/W) 0,965 1,064

� ��

0 -4,5 -9,5 -15,5 -21,5 -32,5

1 0,975 0,969 0,961 0,920 0,908

1 1,018 1,023 1,029 1,063 1,071

1 1,004 1,008 1,037 1,060 1,103

1 1,040 1,124 1,247 1,366 1,554

Ethylene glycolpercent by weight (%)

Freezing point ( °C)Cooling capacity corr. factorPower input corr. factor

Pressure drop corr. factorMixture flow corr. factor

CORRECTION FACTORS


9�

CORRECTION FACTORS


WATER CIRCUIT PRESSURE DROPS: Evaporator

��

Water flow limits

��

�� 5,0 14,6�� 6,4 18,1�� 6,8 19,1�� 7,4 21,7�� 8,1 24,8�� 9,2 28,9�� 11,0 34,3�� 11,3 37,2�� 17,0 50,0�� 18,2 54,1�� 19,8 64,4�� 19,8 64,4�� 23,8 78,1�� 27,4 89,2�� 29,7 96,6�� 29,7 96,6�� 35,9 117�� 41,1 134

EVAPORATOR FOULINGFACTOR CORRECTIONS


tables are given for the condition of clean exchanger (fouling factor = 0). For different fouling factors values, unit performances should be corrected with the correction factors shown above.

�� 0 Clean evaporator 1 10,44 x 10-4 (m² °C/W) 0,98 0,990,88 x 10-4 (m² °C/W) 0,96 0,991,76 x 10-4 (m² °C/W) 0,93 0,98

10

20

30

40

50

60

70

80

90100

120

150

3020177,0 8,0 9,0 10 50 60 70 80 90 100 110120 15017040

� �� Ethylene glycol

percent by weight (%)

0 -4,5 -9,5 -15,5 -21,5 -32,5Freezing point ( °C)1 0,975 0,95 0,93 0,91 0,88Cooling capacity corr. factor1 1,01 0,995 0,990 0,985 0,975Power input corr. factor1 1,01 1,04 1,08 1,14 1,20

1 1,05 1,13 1,21 1,26 1,32Pressure drop corr. factorMixture flow corr. factor

��

60

70

90

80

100

120

50

40

30

2010 20 40 60 80 100 130 150 200

Condenser

Water flow limits

��

�� 5,6 17,6�� 6,3 19,8�� 7,1 23,0�� 8,7 26,5�� 11,1 31,2�� 11,1 37,2�� 13,4 40,8�� 15,8 48,6�� 17,4 54,9�� 20,6 65,8�� 20,6 79,0�� 22,1 86,2�� 23,9 93,6�� 27,3 107�� 29,7 115�� 33,1 129�� 35,9 140�� 41,0 160

WATER CIRCUIT PRESSURE DROPS: Condenser

CONDENSER FOULING FACTOR CORRECTIONS


tables are given for the condition of exchanger with fouling factor = 0,44 x 10-4 (m² °C/W) . For different fouling factors values, unit performances should be corrected with the correction factors shown above.

�� 0,44 x 10-4 (m² °C/W) 1 10,88 x 10-4 (m² °C/W) 0,987 1,0211,76 x 10-4 (m² °C/W) 0,965 1,064

� ��

0 -4,5 -9,5 -15,5 -21,5 -32,5

1 0,975 0,969 0,961 0,920 0,908

1 1,018 1,023 1,029 1,063 1,071

1 1,004 1,008 1,037 1,060 1,103

1 1,040 1,124 1,247 1,366 1,554

Ethylene glycolpercent by weight (%)

Freezing point ( °C)Cooling capacity corr. factorPower input corr. factor

Pressure drop corr. factorMixture flow corr. factor

CORRECTION FACTORS


10��

VDS

CA

RLLRLL

VDS

VDS VDS

P>

P>

P<MC

RC

MHP

MLP

VP VP

RM

SPS

SPH

SPL

P>

P>

P<MC

RC

MHP

MLP

RM

SPS

SPH

SPL

FD

VT

FD

SF

VT

EW

T2

T1

SF

TP TP

TPTP

REFRIGERATION CIRCUIT DIAGRAM

Cooling only units

DESCRIPTION

�� Condenser

�� Evaporator

�� Filter-drier

�� Compressor

�� High pressure guage(accessory)

�� Low pressure guage(accessory)

�� Crank case heater

�� Liquid line shut-off valve (accessory)

�� Discharge line

�� Sight glass

�� High pressure switch

�� Low pressure switch

�� Safety pressure gauges

�� Temperature sensor

�� Antifreeze sensor

�� Pressure transducer

�� Safety valve

�� Step regulation valve(accessory)

�� Electronic expansionvalve

��

��

VDS

RLLRLL

VDS VDS

VDS VDS

P>

P>

P<MC

RC

MHP

MLP

VP VP

RM

SPS

SPH

SPL

P>

P>

P<MC

RC

MHP

MLP

RM

CA

SPS

SPH

SPLFD

VT

FD

SF

VT

EW

T2

T1

SF

TP TP

TPTP

VDS

VP

P>

P>

P<MC

RC

MHP

MLP

RM

SPS

SPH

SPL

VT

TP

CA

SF FD

TP

RLL

CA


Cooling only units

��

DESCRIPTION

�� Condenser

�� Evaporator

�� Filter-drier

�� Compressor






�� Sight glass







�� Safety valve



11��

VDS

CA

RLLRLL

VDS

VDS VDS

P>

P>

P<MC

RC

MHP

MLP

VP VP

RM

SPS

SPH

SPL

P>

P>

P<MC

RC

MHP

MLP

RM

SPS

SPH

SPL

FD

VT

FD

SF

VT

EW

T2

T1

SF

TP TP

TPTP


Cooling only units

DESCRIPTION

�� Condenser

�� Evaporator

�� Filter-drier

�� Compressor






�� Sight glass







�� Safety valve



��

��

VDS

RLLRLL

VDS VDS

VDS VDS

P>

P>

P<MC

RC

MHP

MLP

VP VP

RM

SPS

SPH

SPL

P>

P>

P<MC

RC

MHP

MLP

RM

CA

SPS

SPH

SPLFD

VT

FD

SF

VT

EW

T2

T1

SF

TP TP

TPTP

VDS

VP

P>

P>

P<MC

RC

MHP

MLP

RM

SPS

SPH

SPL

VT

TP

CA

SF FD

TP

RLL

CA


Cooling only units

��

DESCRIPTION

�� Condenser

�� Evaporator

�� Filter-drier

�� Compressor






�� Sight glass







�� Safety valve



12��

DIMENSIONS

��

��

A mm 3550 3550 3550 3550B mm 800 800 800 800C mm 2000 2000 2000 2000

OPERATING WEIGHT

��

��

K1 Kg 520 580 555 610K2 Kg 600 665 620 690K3 Kg 520 580 555 610K4 Kg 600 665 620 690��

DIMENSIONS, CLEARANCES AND WEIGHTSWCWW/Y 1302-B-1502-B

OUT

IN

Clearance area

B

05752

n. 2+2 Ø18

250 250

52

1200

008

K1 K2

K3 K4

C

A

Basement Condenser connections

IN OUTE

lect

rical

pan

el s

ide

��

DIMENSIONS

��

��

A mm 3300 3300 3300 3300 3300 3300 3500 3500 3500 3500B mm 1400 1400 1400 1400 1400 1400 1450 1450 1450 1450C mm 2150 2150 2150 2150 2150 2150 2150 2150 2150 2150

OPERATING WEIGHT

��

��

K1 Kg 580 640 590 650 700 785 770 870 785 885K2 Kg 640 700 645 710 790 875 870 930 880 940K3 Kg 600 660 610 670 780 870 850 940 865 955K4 Kg 660 720 665 730 890 980 950 1050 960 1060��


OUT

IN

5 2

N. 2+2 ø18

0521

K3 K4

1300250

K1

52250

K2

0031

A B

C


IN OUT

Ele

ctric

pan

el s

ide

Clearance area

13��

DIMENSIONS

��

��

A mm 3550 3550 3550 3550B mm 800 800 800 800C mm 2000 2000 2000 2000

OPERATING WEIGHT

��

��

K1 Kg 520 580 555 610K2 Kg 600 665 620 690K3 Kg 520 580 555 610K4 Kg 600 665 620 690��


OUT

IN

Clearance area

B

05752

n. 2+2 Ø18

250 250

52

1200

008

K1 K2

K3 K4

C

A


IN OUT

Ele

ctric

al p

anel

sid

e

��

DIMENSIONS

��

��

A mm 3300 3300 3300 3300 3300 3300 3500 3500 3500 3500B mm 1400 1400 1400 1400 1400 1400 1450 1450 1450 1450C mm 2150 2150 2150 2150 2150 2150 2150 2150 2150 2150

OPERATING WEIGHT

��

��

K1 Kg 580 640 590 650 700 785 770 870 785 885K2 Kg 640 700 645 710 790 875 870 930 880 940K3 Kg 600 660 610 670 780 870 850 940 865 955K4 Kg 660 720 665 730 890 980 950 1050 960 1060��


OUT

IN

5 2

N. 2+2 ø18

0521

K3 K4

1300250

K1

52250

K2

0031

A B

C


IN OUT

Ele

ctric

pan

el s

ide

Clearance area

14��

DIMENSIONS

��

��

A mm 3600 3600 3600 3600 3600 3600B mm 1650 1650 1650 1650 1650 1650C mm 2150 2150 2150 2150 2150 2150


OUT

IN

Clearance area

0 741

n. 6 Ø18 5252850850250 250

2200

K4 K5 K6

K2K1 K3

C

B

500500800500

A

0251

Basement

OPERATING WEIGHT

��

��

K1 Kg 735 810 815 890 815 890K2 Kg 755 830 835 910 840 915K3 Kg 770 845 845 920 850 925K4 Kg 755 830 835 910 855 930K5 Kg 775 850 855 930 865 940K6 Kg 790 865 865 940 875 950��

Condenser connections

IN OUT

Ele

ctric

pan

el s

ide

��

DIMENSIONS

��

��

A mm 4800 4800 4800 4800 5200 5200 5200 5200B mm 1800 1800 1800 1800 1800 1800 1800 1800C mm 2150 2150 2150 2150 2150 2150 2150 2150


OUT

IN

400 800 950 950 800 400

0861

0303

026 1

K1 K2 K3 K4 K5

K6 K7 K8 K9 K9

4300

C

B

500

A

500800500

OPERATING WEIGHT

��

��

K1 Kg 605 650 675 725 695 745 760 810K2 Kg 570 615 640 690 660 710 725 775K3 Kg 525 570 595 645 615 665 680 730K4 Kg 435 480 505 555 515 565 565 615K5 Kg 415 460 485 535 495 545 545 595K6 Kg 625 670 695 745 715 765 780 830K7 Kg 590 635 660 710 680 730 745 795K8 Kg 545 590 620 670 640 690 705 755K9 Kg 465 510 540 590 550 600 600 650

K10 Kg 445 490 525 575 535 585 585 635��

IN OUT

Clearance area


Ele

ctric

al p

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sid

e

15��

DIMENSIONS

��

��

A mm 3600 3600 3600 3600 3600 3600B mm 1650 1650 1650 1650 1650 1650C mm 2150 2150 2150 2150 2150 2150


OUT

IN

Clearance area

0 741

n. 6 Ø18 5252850850250 250

2200

K4 K5 K6

K2K1 K3

C

B

500500800500

A

0251

Basement

OPERATING WEIGHT

��

��

K1 Kg 735 810 815 890 815 890K2 Kg 755 830 835 910 840 915K3 Kg 770 845 845 920 850 925K4 Kg 755 830 835 910 855 930K5 Kg 775 850 855 930 865 940K6 Kg 790 865 865 940 875 950��

Condenser connections

IN OUT

Ele

ctric

pan

el s

ide

��

DIMENSIONS

��

��

A mm 4800 4800 4800 4800 5200 5200 5200 5200B mm 1800 1800 1800 1800 1800 1800 1800 1800C mm 2150 2150 2150 2150 2150 2150 2150 2150


OUT

IN

400 800 950 950 800 400

0861

0303

026 1

K1 K2 K3 K4 K5

K6 K7 K8 K9 K9

4300

C

B

500

A

500800500

OPERATING WEIGHT

��

��

K1 Kg 605 650 675 725 695 745 760 810K2 Kg 570 615 640 690 660 710 725 775K3 Kg 525 570 595 645 615 665 680 730K4 Kg 435 480 505 555 515 565 565 615K5 Kg 415 460 485 535 495 545 545 595K6 Kg 625 670 695 745 715 765 780 830K7 Kg 590 635 660 710 680 730 745 795K8 Kg 545 590 620 670 640 690 705 755K9 Kg 465 510 540 590 550 600 600 650

K10 Kg 445 490 525 575 535 585 585 635��

IN OUT

Clearance area


Ele

ctric

al p

anel

sid

e

16��

DIMENSIONS

��

��

A mm 5200 --- 5200 --- 5500 --- 5500 ---B mm 2200 --- 2200 --- 2200 --- 2200 ---C mm 2150 --- 2150 --- 2150 --- 2150 ---

DIMENSIONS, CLEARANCES AND WEIGHTSWCWW/Y ��

OUT

IN

300

0312

0303

07 02

K1 K2 K3 K4 K5

4500

K6 K7

650 650 650 650 650 650 300

K8 K9 K10 K11 K12 K13 K14

C

B

500

A

500800500

OPERATING WEIGHT

��

��

K1 Kg 630 -- 750 -- 775 -- 820 --K2 Kg 610 -- 730 -- 750 -- 795 --K3 Kg 590 -- 710 -- 725 -- 770 --K4 Kg 570 -- 680 -- 690 -- 735 --K5 Kg 470 -- 570 -- 580 -- 625 --K6 Kg 450 -- 550 -- 560 -- 605 --K7 Kg 420 -- 520 -- 530 -- 580 --K8 Kg 680 -- 810 -- 835 -- 845 --K9 Kg 660 -- 780 -- 800 -- 865 --

K10 Kg 640 -- 760 -- 775 -- 840 --K11 Kg 620 -- 730 -- 740 -- 805 --K12 Kg 510 -- 610 -- 620 -- 685 --K13 Kg 490 -- 590 -- 600 -- 665 --K14 Kg 460 -- 560 -- 570 -- 635 --��

IN OUT

Clearance area


Ele

ctric

al p

anel

sid

e

��

SCA

ST2

FL

EW

ST1

SFAT

T

OUT IN

DESIGNATION

�� Evaporator

�� Flow switch (accessory)

�� Water drain

�� Manual air vent valve

�� Sensor for unit operation


WATER CIRCUITGeneral characteristics

Water circuit WCWW/Y, WCWW/Y/SSL versions. Includes: evaporator, temperature sensor, antifreeze sensor,manual air vent valve and water drain.

WATER CIRCUIT DIAGRAM

17��

DIMENSIONS

��

��

A mm 5200 --- 5200 --- 5500 --- 5500 ---B mm 2200 --- 2200 --- 2200 --- 2200 ---C mm 2150 --- 2150 --- 2150 --- 2150 ---

DIMENSIONS, CLEARANCES AND WEIGHTSWCWW/Y ��

OUT

IN

300

0312

0303

07 02

K1 K2 K3 K4 K5

4500

K6 K7

650 650 650 650 650 650 300

K8 K9 K10 K11 K12 K13 K14

C

B

500

A

500800500

OPERATING WEIGHT

��

��

K1 Kg 630 -- 750 -- 775 -- 820 --K2 Kg 610 -- 730 -- 750 -- 795 --K3 Kg 590 -- 710 -- 725 -- 770 --K4 Kg 570 -- 680 -- 690 -- 735 --K5 Kg 470 -- 570 -- 580 -- 625 --K6 Kg 450 -- 550 -- 560 -- 605 --K7 Kg 420 -- 520 -- 530 -- 580 --K8 Kg 680 -- 810 -- 835 -- 845 --K9 Kg 660 -- 780 -- 800 -- 865 --

K10 Kg 640 -- 760 -- 775 -- 840 --K11 Kg 620 -- 730 -- 740 -- 805 --K12 Kg 510 -- 610 -- 620 -- 685 --K13 Kg 490 -- 590 -- 600 -- 665 --K14 Kg 460 -- 560 -- 570 -- 635 --��

IN OUT

Clearance area


Ele

ctric

al p

anel

sid

e

��

SCA

ST2

FL

EW

ST1

SFAT

T

OUT IN

DESIGNATION

�� Evaporator

�� Flow switch (accessory)

�� Water drain

�� Manual air vent valve

�� Sensor for unit operation


WATER CIRCUITGeneral characteristics

Water circuit WCWW/Y, WCWW/Y/SSL versions. Includes: evaporator, temperature sensor, antifreeze sensor,manual air vent valve and water drain.

WATER CIRCUIT DIAGRAM

18��

SOUND PRESSURE LEVEL

at 1m distance and at a height of 1,5 m with respect to the base of the machine. On the noise levels that are indicated, a tolerance of +/- 3dB(A) should be considered (according to DIN 45635).

��

��

�� 49,0 50,0 50,0 49,5 49,0 50,0 50,0 49,0 49,0�� 68,0 69,0 69,0 69,5 69,0 69,5 69,5 66,5 67,0�� 71,0 71,0 72,0 72,5 70,5 71,5 71,0 72,5 74,0�� 76,5 77,0 77,5 78,0 77,0 77,5 78,0 79,5 81,0�� 73,0 73,5 74,0 74,0 73,5 74,5 74,0 78,5 79,5�� 68,5 70,0 71,0 71,5 71,0 71,5 72,0 72,5 74,5�� 64,5 67,0 69,0 69,5 67,5 69,0 69,5 63,5 65,0

��

��

�� 48,0 53,0 54,0 58,5 60,5 56,0 57,5 59,5 62,5�� 68,0 73,0 74,0 78,5 80,5 76,0 77,5 79,5 82,5�� 75,0 80,0 81,0 85,5 87,5 83,0 84,5 86,5 89,5�� 82,0 87,0 88,0 92,0 93,5 90,0 91,5 93,0 95,5�� 80,0 85,0 86,0 90,5 92,5 88,0 89,5 91,5 94,5�� 75,0 80,0 81,0 85,5 87,5 83,0 84,5 86,5 89,5�� 66,5 71,5 72,5 77,0 79,0 74,5 76,0 78,0 81,0

��

��

�� 47,0 48,0 48,5 48,0 47,5 48,0 48,5 47,5 47,5�� 65,5 66,0 67,0 67,0 66,5 66,5 66,5 64,0 64,5�� 65,5 65,5 67,0 67,5 66,5 66,5 66,5 67,0 68,0�� 70,5 71,0 71,0 71,0 70,5 71,0 71,0 73,0 75,0�� 68,0 68,5 69,0 69,5 67,5 69,0 69,5 74,5 75,0�� 65,5 66,0 67,0 67,5 67,5 69,0 69,0 70,0 71,0�� 62,5 64,5 67,0 68,0 65,5 66,5 67,0 62,0 63,5

��

��

�� 46,5 48 49 53,5 55,5 --- --- --- ---�� 65,5 68 69 73,5 75,5 --- --- --- ---�� 69,5 75 76 80,5 82,5 --- --- --- ---�� 76,0 82 83 87 88,5 --- --- --- ---�� 76,0 80 81 85,5 87,5 --- --- --- ---�� 72,0 75 76 80,5 82,5 --- --- --- ---�� 64,0 66,5 67,5 72,0 74,0 --- --- --- ---

��

The sound level values indicated in dB(A) have been mea-sured in free field conditions. The measurement is taken

��

MICROPROCESSOR CONTROL SYSTEM

A microprocessor controls all the functions of the unit and allows any adjustments to be made. The set-points and operating parameters are set directly into the microproces-sor. This type of microprocessor enables the adjustment of up to four compressors. It has a visual alarm signal, pushbuttons for the various functions, and offers a conti-nuous control of the system as well as saving all the data in case of a cut in the power supply. Through the display, one can input and have an indication of set values.Principal functions: indication of entering and leaving water temperature;of alphanumerical code; control of one or two pumps; flow switch alarm delay at start-up hour counter of compressors ;in operation; automatic changeover of compressor and pump sequence; compressors start individually and not together; frost protection; remote on-off; operation signalling; manual operation; manual reset; pump down stop; electronic card for connection to management and service systems.Alarms: high and low pressure, oil and overload on each

Accessories: electronic card for connection to manage-ment and service systems, remote display.

compressor; antifreeze; flow switch.

identification and display of blocks by means

19��

SOUND PRESSURE LEVEL

at 1m distance and at a height of 1,5 m with respect to the base of the machine. On the noise levels that are indicated, a tolerance of +/- 3dB(A) should be considered (according to DIN 45635).

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The sound level values indicated in dB(A) have been mea-sured in free field conditions. The measurement is taken

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MICROPROCESSOR CONTROL SYSTEM

A microprocessor controls all the functions of the unit and allows any adjustments to be made. The set-points and operating parameters are set directly into the microproces-sor. This type of microprocessor enables the adjustment of up to four compressors. It has a visual alarm signal, pushbuttons for the various functions, and offers a conti-nuous control of the system as well as saving all the data in case of a cut in the power supply. Through the display, one can input and have an indication of set values.Principal functions: indication of entering and leaving water temperature;of alphanumerical code; control of one or two pumps; flow switch alarm delay at start-up hour counter of compressors ;in operation; automatic changeover of compressor and pump sequence; compressors start individually and not together; frost protection; remote on-off; operation signalling; manual operation; manual reset; pump down stop; electronic card for connection to management and service systems.Alarms: high and low pressure, oil and overload on each

Accessories: electronic card for connection to manage-ment and service systems, remote display.

compressor; antifreeze; flow switch.

identification and display of blocks by means

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DESIGNATION� DISPLAY (USER INTERFACE)

�� REMOTE DISPLAY *

�� AUXILIARY CIRCUIT FUSES

�� COMPRESSOR FUSES CIRCUIT

�� AUXILIARY CONTACTOR

�� COMPRESSOR CONTACTOR

�� COIL

�� COMPRESSOR

�� DRIVER

�� COMPRESSOR CAPACITY STEPS

�� FLOW SWITCH

�� CONDENSER FLOW SWITCH

�� HP SWITCH CIRCUIT

�� MOTOR PROTECTION COMPRESSOR

�� LP SWITCH CIRCUIT

�� COMP. CRANKCASE HEATER

�� EVAPORATOR HEATER

�� PHASE SEQUENCE RELAY

�� CONDENSATION REGULATOR

�� ELECTRICAL BOARD HEATER

�� PIPES HEATER

�� COMPRESSOR OVERLOAD RELAY

�� PUMP OVERLOAD RELAY

�� ANTIFREEZE SENSOR

�� MICROPROCESSOR

�� DISPLAY CONNECTION BOARD

�� EXPANSION BOARD

�� MAIN SWITCH

�� TEMPERATURE SENSOR

�� DISCHARGE LINE SENSOR

�� SERIAL INTERFACE *

�� COMPRESSOR SOFT START

�� PRESSURE TRANSDUCER

�� LOW PRESSURE TRANSMITTER

�� VT PRESSURE TRANSDUCER

�� ELECTRICAL BOARD THERMOSTAT

�� AUXILIARY TRASFORMER

�� REVERSE CYCLE VALVE CIRCUIT

�� ELECTRIC BOARD FAN

* Accessory

ELECTRICAL DIAGRAM EXPLANATION

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DESIGNATION� DISPLAY (USER INTERFACE)

�� REMOTE DISPLAY *

�� AUXILIARY CIRCUIT FUSES

�� COMPRESSOR FUSES CIRCUIT

�� AUXILIARY CONTACTOR

�� COMPRESSOR CONTACTOR

�� COIL

�� COMPRESSOR

�� DRIVER

�� COMPRESSOR CAPACITY STEPS

�� FLOW SWITCH

�� CONDENSER FLOW SWITCH

�� HP SWITCH CIRCUIT

�� MOTOR PROTECTION COMPRESSOR

�� LP SWITCH CIRCUIT

�� COMP. CRANKCASE HEATER

�� EVAPORATOR HEATER

�� PHASE SEQUENCE RELAY

�� CONDENSATION REGULATOR

�� ELECTRICAL BOARD HEATER

�� PIPES HEATER

�� COMPRESSOR OVERLOAD RELAY

�� PUMP OVERLOAD RELAY

�� ANTIFREEZE SENSOR

�� MICROPROCESSOR

�� DISPLAY CONNECTION BOARD

�� EXPANSION BOARD

�� MAIN SWITCH

�� TEMPERATURE SENSOR

�� DISCHARGE LINE SENSOR

�� SERIAL INTERFACE *

�� COMPRESSOR SOFT START

�� PRESSURE TRANSDUCER

�� LOW PRESSURE TRANSMITTER

�� VT PRESSURE TRANSDUCER

�� ELECTRICAL BOARD THERMOSTAT

�� AUXILIARY TRASFORMER

�� REVERSE CYCLE VALVE CIRCUIT

�� ELECTRIC BOARD FAN

* Accessory

ELECTRICAL DIAGRAM EXPLANATION

U.S.A.

Dallas, Texas TX 75374-0183P.O. Box 740183Phone: +214-361-2164 Fax: +214 361-2165E-mail: [email protected]

CATALOG # WCWWXT/Y-08-15

U.A.E.

DubaiP.O. Box 12954Phone: +971-4 267 0909 Fax: +971-4 267 5747E-mail: [email protected]

All models, sizes, dimensions, and specifications are subject to change without prior notice.

www.westairind.com

Westair water cooled chillers - Westair Industries Inc.Compressors. Screw semihermetic with built-in...

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