LS SA075 User manual

R134a
75 to 350 RT
Air Conditioning System
Air-Cooled
Screw Chiller

Introduction
LS air-cooled water chillers are complete, self-contained automatic refrigerating units that include the latest in
engineering components arranged to provide a compact and efficient unit. Each unit is completely assembled;
factory wired, evacuated, charged, tested and comes complete and ready for installation. Each unit consists of
multiple air-cooled condensers with integral sub-cooler sections, one or more accessible semi-hermetic double-
screw compressors, star-delta starters, flooded type shell-and-tube evaporator, and complete refrigerant piping.
Liquid line components included are manual liquid line shutoff valves, charging valves, filter-driers, liquid line
solenoid valves, sight glass/moisture indicators, and electronic expansion valves.
Inspection
When the equipment is received, all items should be carefully checked against the bill of lading to ensure a
complete shipment. All units should be carefully inspected for damage upon arrival. The unit’s serial plate should
be checked before unloading the unit to be sure that it agrees with the power supply available. Physical damage to
unit after acceptance is not the responsibility of LS Company.
General Description
Nomenclature
S A X X X C S A H
-
3 Y F
Evaporator type : F-flooded
Start mode : Y-
Power : 3-380V 50Hz, 4-415V 50Hz, 5-440V 50Hz, 6 -380V 60Hz
H-high ambient, S-standard ambient
Refrigerant : A-R134a
Modules : S-single, D-double, T-triple
Chiller type : C-cooled water chiller
Capacity (RT)
Cooling mode : Air cooled
Compressor type : Semi-hermetic screw
LS Air-Cooled Water Chillers02

Compressor
·Type: The semi-hermetic twin screw compressor used in
Model SA liquid chillers has the advantage of hermetically
sealing the refrigerant and lubricating oil inside the compressor
while allowing technicians access to service and repair internal
moving parts.
·Capacity Control: Is achieved using a slide valve which
automatically modulates compressor capacity in 4 steps 25%,
50%, 75% and 100% with equivalent reductions in energy
consumption.
·Compressor Starting: The compressor starts fully unloaded
using the star-delta (Y/) method to minimize starting current
inrush.
·Compressor Characteristics: Using the optimum screw
rotor profile and precision machining of all components
achieves minimum operating clearances to ensure the highest
volumetric and compression efficiency and minimum friction
and windage losses. The nodular cast iron compressor casing
encloses compressor, electric motor and oil separator in a
single accessible housing ensuring the minimum levels of noise
breakout and vibration. This rugged structure ensures stable and
reliable operation in ambient temperatures ranging from -15 to
+55˚c.
Cooler
All SA liquid chillers are fitted with a single cooler of the•
“Flooded” shell and tube type having refrigerant in the shell
and chilled water inside the tubes. The shell is of welded alloy
steel construction with steel tube sheets and copper heat
exchange tubes. Removable steel water boxes at both ends
of the cooler allow tube cleaning without disturbing the
refrigerant circuit. Tubes are mechanically expanded into tube
sheets with double grooves to ensure leak tight and trouble
free operation. Multiple compressor/ circuit chillers have
coolers with separate refrigeration circuits for each compressor.
Each refrigeration circuit is provided with its own double safety
Specifications
System Flow Chart
Note: This is the flow chart of single refrigerant circuit type of air-cooled screw liquid chiller.
For multi refrigerant circuit chillers each compressor has its own separate circuit as above.
LS Air-Cooled Water Chillers 03

Specifications (Continued)
pressure relief valve. All chillers are fitted with drain valves on
the removable heads and shell. All coolers are factory insulated
with 25mm of closed cell expanded synthetic rubber with all
joints vapor sealed. Coolers are designed in accordance with
ASME guidelines and are rated according to the following
pressures.
REFRIGERANT SIDE WATER SIDE
Kg/Sq. cm Lbs/Sq. cm Kg/Sq. Inch Lbs/Sq. Inch
DESIGN PRESSURE 16 230 10.5 145
TEST PRESSURE 18 260 12.5 180
High efficiency heat transfer•
tubes are used in Model SA
coolers having the external
(refrigerant side) surface
expanded with “saw tooth”
type fins. The inside surface
has helical grooves to induce a swirling motion in the chilled
water which improves heat transfer efficiency.
Air Cooled Condenser
Condenser coils are constructed from copper tubes with spiral•
grooves on their inside surface to maximize heat transfer
efficiency. Aluminum condenser fins have a corrosion resistant
and hydrophilic coating to minimize dust and moisture
accumulation and ensure a long working life. The fins have
rippled and louvered surfaces to improve heat dissipation
efficiency. Each condenser section comprises 4 coils in a
reversed M arrangement which
ensures that at least 3 coils are
always shaded from direct solar
radiation and can therefore
operate satisfactorily in ambient
temperature up to 52˚C (125˚F).
Condenser fans are axial type using high strength pressed and•
formed aluminum alloy fan blades mechanically attached to
rustless steel fan hubs. Fan motors are waterproof rated to IP-54
with class ‘F’ insulation suitable for operation in temperatures
from -20˚c to 65˚c (-4˚F to 150˚F).
Electronic Expansion Valve
This is a standard feature on each refrigeration circuit on all
Model SA liquid chillers, Electronic expansion valves ensure
stable operation throughout their operating range and precisely
control the refrigerant flow
through the cooler. The very
low pressure losses associated
with electronic expansion
valves ensures that full
operating cost savings can be
achieved during cooler seasons
when ambient temperatures
and condensing pressures are reduced.
Economizer
This is a standard feature of all Model SA liquid
chillers. Economizers improve the efficiency of
the compressor and refrigeration system and
increase the capacity of the chiller.
Control Center
All SA liquid chillers are•
equipped with a factory
fitted and wired control
center mounted on one
end of the chiller unit.
The high voltage section
incorporates compressor
and fan contractors and
safety controls and is protected by a door interlocked isolator.
The low voltage control section is accessed by a separate
lockable door and houses the microprocessor controller and
LED screen displaying operating and historical date.
For high ambient units a double panel (panel within a panel)•
arrangement is used with thermostatically controlled fans to
ventilate the inter-panel
space and prevent “sun-
baking” in tropical areas
causing excessively high
temperatures inside the
panel.
LS Air-Cooled Water Chillers04

Factory Options
Remote Monitoring System
A remote monitoring system is available as an accessory for field
installation.
Vibration Isolators
A feature of all Model SA chillers is their very low levels of noise
and vibration. For most outdoor installations where chillers
are positioned directly on a ground level concrete slab chillers
can be quite satisfactorily mounted on the neoprene isolation
pads that are supplied with the unit. For installation on building
roofs or in sensitive noise areas (hospitals, studios and some
residential areas) pre selected spring type isolators are available
as a factory option – shipped loose for field installation.
High Static Condenser Fans
These are available for certain models to provide increased
airflow over condenser coils and increased cooling capacity or
increased static pressure in installations where exhaust air has to
be ducted away from the chiller. Specific performance data and
costs can be provided for this option on application to LS Air
Conditioning Co.
Anti- Freeze Heaters
For installations where ambient temperatures can fall to 0˚c or
below, factory installed and thermostatically controlled heater
mats are available as an accessory to prevent freezing of water
inside the cooler, tubes and waterboxes.
Optimisation Main / Auxiliary Unit
For multi chiller installations an optional “Master Controller” can
be factory fitted to one of the chillers. This “Master Controller”
will sequence up to four additional “Slave” chillers to optimize
chiller running hours’and energy consumption.
Multi-compressor Option
Models SA125 and SA150 are also available with 2-compressor
and refrigeration circuits.
ESD(Energy Saving Drive)
Reduce Energy Use
The energy saving drive (ESD) technology revolutionized the
performance of air cooled chillers.
ESD is a complete and high-quality device with a variable
frequency drive inside. By modulating the frequency of the input
power, it can always match chiller capacity to the building load
and significantly lower energy consumption. And if an ESD is
installed in the constant-speed chiller, almost 20% of the energy
will be saved.
This graph shows typical energy savings when an ESD is installed
on a constant speed chiller.
Reduce electrical demand charges
Along with lowering energy consumption, an ESD delivers other
cost saving benefits, like the possible elimination of electrical
demand charges. Electrical demand charges may be reduced
because the motor will always start at low frequencies and
maintain inrush current at or below full load amps. And the
electronics and circuitry can be designed for Minimum Current
Amps which reduces the size and cost of chiller wiring.
Reduce Motor Stress
Another important benefit of an ESD installation is that it reduces
stress on your chiller’s motor. Unlike conventional motor starters,
an ESD avoids the sudden current surges that shock motors and
drives during start-up. Starting the compressor slowly and then
bringing it up to speed gradually reduces equipment stress.
1.3
1.1
0.9
0.7
0.5
0.3
100 75 50 25
KW/ton
Load (%)
ESD
Non-ESD
LS Air-Cooled Water Chillers 05

Physical Data - High Ambient Models
MODEL SA 75 100 125 150 170 210 225 250 270 300 325 350
Nominal cooling capacity(kW) 263 344.7 443.3 519.6 608 689 788 886.6 924.3 1033.7 1132.3 1242.6
Power supply 3PH 380/220V 50Hz
Nominal total power(kW) 115.6 150.1 193.5 226.1 274.2 302.1 343.6 387 427.4 452.1 495.6 542.6
Normal running current(A) 233.9 286.1 367.2 430.3 521.8 572.2 653.3 734.4 762.6 858.3 939.4 1017.2
Safety protection High/low pressure protection, water flow failier protection, low water temperature protection,
motor overload, phase-failure and phase sequence protection.
Compressor
Type Rotary Screw Compressor
Quantity 1 1 1 1 2 2 2 2 2 3 3 3
Motor Kw 108.4 139.3 179.1 208.1 252.6 280.5 318.4 358.2 398.6 419.7 459.6 506.6
Oil charge liters 20 23 28 28 23/23 23/23 23/28 28/28 28/28 28/28/28 28/28/28 28/28/28
Air cooled
condenser
Fan motor type Axial
Quantity of fan motor 4 6 8 10 6/6 6/6 6/8 8/8 8/8 6/6/6 6/6/8 6/6/8
Motor Kw (each) 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8
Fan RPM 960 960 960 960 960 960 960 960 960 960 960 960
Heat exchanger type High Efficiency Copper Tube with Aluminum Fins
Chilled
water
cooler
Type Shell and tube high efficiency heat exchanger
Water side working
pressure(Kg/Sq cm)
14
Nominal flow(m³/h) 46 59.1 76 89.1 104.2 118.1 135.1 152 158.4 177.2 194.1 213
Water resistance(kPa) 50 50 55 55 55 60 58 60 60 65 65 65
Water pipe diameter(DN) 100 100 125 125 150 150 150 150 150 200 200 200
Refrigerant
Type R134a
Charge / Circuit (kg) 165 220 275 330 185/185 210/210 210/230 250/250 275/275 210/210/210 210/210/230 210/210/250
No. of Circuits 1 1 1 1 2 2 2 2 2 3 3 3
Outline
dimension
length(mm) 3150 3950 4950 6000 7050 7050 8550 9550 9550 10650 11650 11650
width(mm) 2200
height(mm) 2400
Net weight of unit(kg) 3464 4159 4557 5380 6253 7462 7615 7868 8340 9118 9726 10018
Operating weight of unit(kg) 3727 4519 4964 5835 6711 8010 8172 8444 9021 9839 10495 10810
Noise dB(A) 74 74 74 78 78 78 78 79 79 80 80 80
Note:1. The nominal cooling capacities (stated above) are at chilled water temperatures of 12/7˚c and ambient of 46˚c.
2. Fouling Factor of evaporator is 0.086 m2.k/kW.
3. Specification may be changed without further notification.
4. The unit conforms to standard ARI 550/590-98.
5. The cooling capacity and power supply is measured with the economizer at the nominal operating conditions defined in Note 1 above.
6. Noise dB : Sound pressure level at 10 meters.
LS Air-Cooled Water Chillers06

Physical Data - Standard Ambient Models
MODEL SA 75 100 125 150 170 210 225 250 270 300 325 350
Nominal cooling capacity(kW) 263.2 351.9 462.7 535.1 591.2 703.8 814.6 861.9 925.4 1055.7 1137 1197.5
Power supply 3PH 380/220V 50Hz
Nominal total power(kW) 82.9 110.4 145.1 167.9 186.8 220.8 255.5 270.8 290.2 331.2 356.9 389.6
Normal running current(A) 150.8 204 262.4 307.3 353.2 408 466.4 495.4 524.8 612 670.4 708.4
Safety protection High/low pressure protection, water flow failier protection, low water temperature protection,
motor overload, phase-failure and phase sequence protection.
Compressor
Type Rotary Screw Compressor
Quantity 1 1 1 1 2 2 2 2 2 3 3 3
Motor Kw 76.5 100.8 132.3 151.9 167.6 201.6 233.1 245.2 264.6 302.4 324.9 357.6
Oil charge liters 15 23 23 28 18/18 23/23 23/23 23/23 28/28 23/23/23 23/23/23 23/23/28
Air cooled
condenser
Fan motor type Axial
Quantity of fan
motor 4 6 8 10 6/6 6/6 6/8 8/8 8/8 6/6/6 6/6/8 6/6/8
Motor Kw (each) 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6
Fan RPM 960 960 960 960 960 960 960 960 960 960 960 960
Heat exchanger type High Efficiency Copper Tube with Aluminum Fins
Chilled
water
cooler
Type Shell and tube high efficiency heat exchanger
Water side working
pressure(Kg/Sq cm)
14
Nominal flow(m³/h) 45.1 61.2 79.3 91.7 104.2 122.4 139.6 147.7 158.6 180.9 199.9 212.7
Water
resistance(kPa) 50 50 55 55 58 58 58 60 60 65 65 65
Water pipe diameter(DN) 100 100 125 125 150 150 150 150 150 200 200 200
Refrigerant
Type R134a
Charge / Circuit (kg) 130 215 250 300 175/175 185/185 210/230 250/250 275/275 210/210/210 210/210/230 210/210/250
No. of Circuits 1 1 1 1 2 2 2 2 2 3 3 3
Outline
dimension
length(mm) 3150 3950 4950 6000 7050 7050 8550 9550 9550 10650 11650 11650
width(mm) 2200
height(mm) 2400
Net weight of unit(kg) 3424 4219 4476 5355 6173 7402 7504 7706 7889 9058 9585 10018
Operating weight of unit(kg) 3687 4489 4883 5810 6631 7950 8061 8282 8570 9779 10354 10665
Noise dB(A) 74 74 74 78 78 78 78 79 79 80 80 80
Note:1. The nominal cooling capacities (stated above) are at chilled water temperatures of 12/7˚c and ambient of 35˚c.
2. Fouling Factor of evaporator is 0.086 m2.k/kW.
3. Specification may be changed without further notification.
4. The unit conforms to standard ARI 550/590-98.
5. The cooling capacity and power supply is measured with the economizer at the nominal operating conditions defined in Note 1 above.
6. Noise dB : Sound pressure level at 10 meters.
LS Air-Cooled Water Chillers 07

Ratings - High Ambient Models
MODEL
Leaving
Chilled
Liquid
˚C
Condenser Air Entering Temperature ˚C
25 30 35 40 46 50
cool Power cool Power cool Power cool Power cool Power cool Power
KW KW KW KW KW KW KW KW KW KW KW KW
SA075
5 299 69 297 74 272 78 262 83 252 107 232 112
7 319 72 308 77 290 81 280 86 263 116 250 116
10 339 76 332 80 320 85 309 90 289 117 278 121
12 348 78 334 83 328 88 317 93 306 120 295 125
15 357 80 344 86 335 92 322 96 311 125 309 130
SA100
5 392 93 385 99 375 105 362 111 332 137 309 143
7 409 97 392 109 380 119 367 145 345 150 332 148
10 421 102 403 112 391 125 376 150 353 152 349 156
12 439 105 420 115 406 138 388 153 376 154 382 161
15 450 109 439 120 423 142 398 156 388 161 393 167
SA125
5 496 111 475 119 451 126 435 372 422 162 393 168
7 529 116 507 124 481 131 465 398 443 194 423 175
10 578 122 557 129 531 138 513 440 491 206 470 183
12 612 126 590 134 561 142 543 465 519 212 499 190
15 661 131 636 139 606 148 586 502 560 219 539 197
SA150
5 622 152 596 162 566 172 545 182 492 214 458 199
7 662 158 636 168 603 178 582 188 520 226 492 206
10 725 166 698 177 664 188 642 198 582 233 547 217
12 767 172 739 183 702 194 680 205 616 240 581 224
15 827 178 797 189 759 202 733 213 665 249 627 233
SA170
5 689 185 660 197 662 208 604 206 579 264 539 275
7 704 192 675 204 645 216 626 213 608 274 579 285
10 724 202 694 214 677 227 642 224 626 287 644 300
12 750 208 719 221 692 235 684 231 645 297 684 310
15 788 216 733 229 728 245 704 241 663 310 738 322
SA210
5 758 202 790 215 710 228 692 239 666 296 614 309
7 778 210 743 223 730 237 702 248 689 307 667 320
10 801 221 776 235 741 249 721 260 709 323 701 336
12 817 228 799 243 782 258 751 269 735 334 727 348
15 997 237 956 252 907 268 773 280 842 346 840 362
Note:1. High ambient models are suitable for operation in ambient temperatures up to 52˚c (125˚F)
2. Fouling factor of evaporator is 0.086 m2.·k/kW.
3. Specification may be changed without further notification
4. The unit conforms to standard ARI 550/590-98.
5. The cooling capacity and power supply is measured with the economizer.
6. Power consumption values include compressors and fans.
LS Air-Cooled Water Chillers08

Ratings - High Ambient Models (Continued)
MODEL
Leaving
Chilled
Liquid
˚C
Condenser Air Entering Temperature ˚C
25 30 35 40 46 50
cool Power cool Power cool Power cool Power cool Power cool Power
KW KW KW KW KW KW KW KW KW KW KW KW
SA225
5 958 267 973 278 992 289 821 298 768 335 745 317
7 978 296 993 309 1012 321 838 331 787 344 760 352
10 1163 299 1181 312 1204 324 997 335 936 351 904 356
12 1232 305 1251 319 1275 331 1056 341 994 357 958 363
15 1330 311 1350 325 1376 337 1140 348 1073 370 1034 370
SA250
5 1077 300 1094 313 1115 325 923 335 869 348 745 356
7 1099 333 1116 348 1138 361 942 372 887 387 760 396
10 1308 336 1328 351 1354 365 1121 376 1056 391 904 400
12 1385 343 1406 358 1433 372 1187 384 1118 399 958 408
15 1495 350 1518 365 1547 379 1281 391 1206 406 1034 416
SA270
5 1145 256 1096 272 1041 313 1005 304 932 383 901 400
7 1220 265 1171 281 1111 325 1074 316 924 427 968 414
10 1335 278 1286 296 1224 341 1184 332 1104 418 1076 434
12 1413 288 1361 303 1295 353 1253 343 1168 432 1143 450
15 1526 388 1470 316 1397 367 1353 356 1260 448 1233 467
SA300
5 1243 307 1191 323 1131 343 1077 365 1000 460 966 479
7 1325 319 1272 335 1206 356 1152 379 1034 452 1038 497
10 1450 334 1396 353 1329 374 1269 398 1184 501 1154 522
12 1534 376 1477 364 1406 387 1345 411 1252 518 1226 540
15 1656 391 1596 379 1518 402 1451 426 1352 539 1323 560
SA325
5 1380 384 1402 401 1429 417 1183 430 1109 446 745 457
7 1408 427 1430 446 1458 463 1207 477 1132 496 760 508
10 1676 431 1702 450 1735 467 1437 482 1347 501 904 513
12 1775 440 1802 459 1837 477 1521 492 1426 511 958 523
15 1915 448 1945 468 1983 486 1642 501 1540 521 1034 533
SA350
5 1511 421 1534 439 1564 456 1295 470 1218 489 745 500
7 1542 467 1566 488 1596 507 1322 522 1243 543 760 556
10 1835 472 1863 493 1899 512 1573 528 1479 548 904 561
12 1943 481 1973 502 2011 522 1666 538 1566 559 958 572
15 2097 491 2129 512 2171 532 1798 549 1690 570 1034 583
Note:1. High ambient models are suitable for operation in ambient temperatures up to 52˚c (125˚F)
2. Fouling Factor is 0.086 m2.·k/kW.
3 .Specification may be changed without further notification
4. The unit conforms to standard ARI 550/590-98.
5 .The cooling capacity and power supply is measured with the economizer.
6. Power consumption values include compressors and fans.
LS Air-Cooled Water Chillers 09

Ratings - Standard Ambient Models
MODEL
Leaving
Chilled
Liquid
˚C
Condenser Air Entering Temperature ˚C
25 30 35 40 46 50
cool Power cool Power cool Power cool Power cool Power cool Power
KW KW KW KW KW KW KW KW KW KW KW KW
SA075
4.5 263 71 295 75 240 80 232 84 212 105 196 108
5 272 72 303 76 247 81 238 85 220 106 202 111
6 280 72 314 77 255 81 246 87 227 106 210 112
7 290 74 325 79 263 83 255 89 235 109 218 115
10 316 78 355 82 291 88 281 93 260 115 241 120
12 335 81 286 85 307 91 297 96 275 119 257 124
15 361 82 286 89 332 95 320 99 296 124 277 128
SA100
4.5 335 93 343 336 327 105 315 111 289 138 269 143
5 363 94 348 341 330 106 319 112 291 139 272 144
6 374 96 359 352 341 108 330 113 301 140 282 146
7 386 98 371 364 352 110 341 116 314 143 291 149
10 424 103 407 400 388 116 374 122 346 151 326 157
12 448 106 432 423 410 119 399 127 366 155 345 164
15 483 110 465 457 443 123 430 132 394 164 372 169
SA125
4.5 473 123 453 130 429 139 414 407 403 178 374 186
5 477 123 457 131 434 140 419 411 406 179 379 187
6 493 125 473 133 448 142 434 424 421 181 392 190
7 508 128 488 137 463 145 447 440 435 186 407 194
10 557 134 535 143 510 152 494 486 482 194 452 202
12 589 140 568 148 538 157 522 514 508 200 480 210
15 636 145 612 153 582 164 564 555 549 208 518 217
SA150
4.5 546 143 523 153 498 162 477 170 431 201 402 187
5 551 144 529 154 503 163 483 172 436 201 407 188
6 569 146 546 155 519 164 502 173 451 205 421 191
7 588 150 564 159 535 168 517 178 468 210 436 194
10 643 157 620 167 589 178 570 187 517 220 485 205
12 681 163 656 173 624 183 604 193 547 227 515 211
15 734 168 707 179 673 191 651 201 590 236 555 220
Note:1. Standard models are designed for operation in ambient temperatures up to 46˚c (115 ˚F). When ambient temperatures rise above
46˚c compressors will progressively unload to prevent trips on high pressure/temperature/current.
2. Fouling factor of evaporator is 0.086 m2.·k/kW.
3. Specification may be changed without further notification
4. The unit conforms to standard ARI 550/590-98.
5. The cooling capacity and power supply is measured with the economizer.
6. Power consumption values include compressors and fans.
LS Air-Cooled Water Chillers10

Ratings - Standard Ambient Models (Continued)
MODEL
Leaving
Chilled
Liquid
˚C
Condenser Air Entering Temperature ˚C
25 30 35 40 46 50
cool Power cool Power cool Power cool Power cool Power cool Power
KW KW KW KW KW KW KW KW KW KW KW KW
SA170
4.5 571 159 547 171 547 179 501 177 477 227 445 236
5 576 159 553 170 554 180 506 178 485 229 451 238
6 596 162 571 173 571 182 524 180 501 232 468 242
7 614 166 591 177 591 187 541 184 519 234 485 246
10 673 175 649 185 650 196 596 194 574 248 539 259
12 711 180 685 192 689 203 631 200 607 257 572 268
15 768 187 739 198 742 211 681 209 655 268 617 278
SA210
4.5 718 188 688 201 653 213 629 222 580 276 534 288
5 724 189 695 202 659 214 635 223 586 276 540 289
6 749 192 718 204 682 216 658 228 606 281 565 292
7 773 197 741 208 704 221 680 232 628 287 587 299
10 846 206 814 219 775 233 750 243 694 302 651 315
12 895 214 862 228 820 241 793 251 734 313 692 325
15 965 221 929 236 886 250 856 262 820 323 749 338
SA270
4.5 992 241 952 257 905 294 873 287 809 360 782 374
5 1004 242 962 257 913 296 882 288 817 363 791 378
6 1038 245 993 261 944 300 912 292 845 367 818 383
7 1070 250 1029 266 975 307 942 298 876 374 849 392
10 1172 263 1129 279 1074 322 1039 314 969 395 944 411
12 1240 272 1194 287 1136 333 1099 324 1025 408 1003 424
15 1339 367 1289 298 1226 347 1187 337 1105 423 1082 442
SA320
4.5 1091 288 1047 304 994 323 947 344 878 434 849 452
5 1102 290 1056 306 1003 325 956 346 887 437 857 455
6 1138 295 1091 311 1038 330 990 351 916 443 888 462
7 1175 302 1128 318 1070 338 1021 359 950 448 921 471
10 1286 317 1238 334 1179 354 1126 377 1050 475 1023 495
12 1360 356 1311 345 1247 367 1193 390 1110 491 1087 512
15 1468 371 1416 359 1347 381 1287 404 1199 511 1173 532
Note:1. Standard models are designed for operation in ambient temperatures up to 46˚c (115 ˚F). When ambient temperatures rise above
46˚c compressors will progressively unload to prevent trips on high pressure/temperature/current.
2. Fouling factor of evaporator is 0.086 m2.·k/kW.
3. Specification may be changed without further notification
4. The unit conforms to standard ARI 550/590-98.
5. The cooling capacity and power supply is measured with the economizer.
6. Power consumption values include compressors and fans.
LS Air-Cooled Water Chillers 11

Water Pressure Drop Through Evaporator
Line Symbol
ASA075, SA100
BSA125, SA150
CSA170, SA210
DSA250, SA270
ESA300
FSA325, SA350
Water Pressure Drop
Pressure Drop (kPa)
Water Flow Rate (l/s)
LS Air-Cooled Water Chillers12

Operating Limitations
MODEL SA 75 100 125 150 170 210
Min Max Min Max Min Max Min Max Min Max Min Max
Water Leaving Temp ˚C 4.5 to 15
Cooling Range
(Entering – Leaving) ˚C 3 to 20
Evaporator Flow Rate m3/h 18 57 30 59 32 86 33 105 42 107 41 126
Evaporator Pressure Drop kPa 8.5 100 11 120 11 130 12 110 13 115 12 118
Maximum Water side
Pressure bar 10
Air Entering Temperature ˚C -10 to 52
Fan Available Static Pressure kPa 10
Maximum Refrigerant Side
Pressure bar 16
Power Supply Voltage 3PH 380 50Hz 340 to 420
Max Running Current(A) High Ambient Model 350.9 429.2 550.8 645.5 782.7 858.3
Standard Ambient Model 292 391 501 594 715.1 784.1
MODEL SA 225 250 270 300 325 350
Min Max Min Max Min Max Min Max Min Max Min Max
Water Leaving Temp ˚C 4.5 to 15
Cooling Range
(Entering – Leaving) ˚C 3 to 20
Evaporator Flow Rate m3/h 49 138 53 155 48 159 55 188 57 200 64 220
Evaporator Pressure Drop kPa 15 122 18 128 18 128 21 134 21 134 22 138
Maximum Water side
Pressure
bar 10
Air Entering Temperature ˚C -10 to 52
Fan Available Static Pressure kPa 10
Maximum Refrigerant Side
Pressure bar 16
Power Supply Voltage 3PH 380 50Hz 340 to 420
Max Running Current(A) High Ambient Model 978 1101.6 1143.9 1287.5 1409.1 1525.8
Standard Ambient Model 893.5 1006.4 1045.1 1176.3 1287.4 1394
Max running Current values included compressors and fans.
LS Air-Cooled Water Chillers 13

Electrical Data
1 Compressor Unit
- Standard ambient model
SA MODEL Volts(V) Freq.(Hz) Compressor Fans
RLA MCC Start Amps Qty. RLA
075 380 50 131 216 328 4 5
100 380 50 174 292 435 6 5
125 380 50 223 365 558 8 5
150 380 50 258 422 645 10 5
- High ambient model
SA MODEL Volts(V) Freq.(Hz) Compressor Fans
RLA MCC Start Amps Qty. RLA
075 380 50 214 271 535 4 5
100 380 50 256 317 640 6 5
125 380 50 327 404 818 8 5
150 380 50 380 490 951 10 5
2 Compressor Unit
- Standard ambient model
SA MODEL Volts(V) Freq.(Hz) System Compressor Fans
RLA MCC Start Amps Qty. RLA
170 380 50 l 161 271 403 6 5
ll 161 271 403 6 5
210 380 50 l 174 292 435 6 5
ll 174 292 435 6 5
225 380 50 l 174 292 435 6 5
ll 223 365 558 8 5
250 380 50 l 193 317 483 8 5
ll 223 365 558 8 5
270 380 50 l 223 365 558 8 5
ll 223 365 558 8 5
- High ambient model
SA MODEL Volts(V) Freq.(Hz) System Compressor Fans
RLA MCC Start Amps Qty. RLA
170 380 50 l 231 292 577 6 5
ll 231 292 577 6 5
210 380 50 l 256 317 640 6 5
ll 256 317 640 6 5
225 380 50 l 256 317 818 6 5
ll 327 404 818 8 5
250 380 50 l 327 404 818 8 5
ll 327 404 818 8 5
270 380 50 l 341 422 853 8 5
ll 341 422 853 8 5
LS Air-Cooled Water Chillers14

Electrical Data (Continued)
3 Compressor Unit
- Standard ambient model
SA MODEL Volts(V) Freq.(Hz) System Compressor Fans
RLA MCC Start Amps Qty. RLA
300 380 50
l 174 292 435 6 5
ll 174 292 435 6 5
lll 174 292 435 6 5
325 380 50
l 174 292 435 6 5
ll 174 292 435 6 5
lll 223 365 558 8 5
350 380 50
l 193 317 483 6 5
ll 193 317 483 6 5
lll 223 365 558 8 5
- High ambient model
SA MODEL Volts(V) Freq.(Hz) System Compressor Fans
RLA MCC Start Amps Qty. RLA
300 380 50
l 256 317 640 6 5
ll 256 317 640 6 5
lll 256 317 640 6 5
325 380 50
l 256 317 640 6 5
ll 256 317 640 6 5
lll 327 404 818 8 5
350 380 50
l 295 365 738 6 5
ll 295 365 738 6 5
lll 327 404 818 8 5
Note:RLA: Rated Load Amps
MCC: Maximum Continuous Current
LS Air-Cooled Water Chillers 15

Electrical Data (Continued)
High Ambient Model for 46˚C Nominal Ambient Operation Electricity Supply 380/3/50
Model No.
Chiller Total Power Input Nominal
Running Amps
Maximum
Running Amps
Maximum
Start Amps
Nominal Kw Maximum Kw
SA-75 115.6 173.4 233.9 350.9 641.7
SA-100 150.1 225.2 286.1 429.2 768.3
SA-125 193.5 290.3 367.2 550.8 981.6
SA-150 226.1 339.2 430.3 645.5 1140.9
SA-170 274.2 411.3 521.8 782.7 692.7
SA-210 302.1 453.2 572.2 858.3 768.3
SA-225 343.6 515.4 653.3 978.0 981.6
SA-250 387.0 580.3 734.4 1101.6 981.6
SA-270 427.4 641.1 762.6 1143.9 1023.9
SA-300 452.1 678.2 858.3 1287.5 768.3
SA-325 495.6 743.4 939.4 1409.1 981.6
SA-350 542.6 813.9 1017.2 1525.8 1140.9
Note:1. Chiller total power includes all compressors and condenser fans running.
2.
Nominal Kw and Amps (above) apply when chiller is operating in an ambient temperature of 46˚c with leaving chilled water temperature of 7˚c.
3. Max Kw and Amps (above) apply when chiller is operating at extreme limits beyond which safety controls will prevent higher values.
4. Max Start Amps occur when the last compressor starts while all other compressors and condenser fans are already running.
5. Max running Amps values include compressors and fans.
Standard Model for 35˚C Nominal Ambient Operation Electricity Supply 380/3/50
Model No.
Chiller Total Power Input Nominal
Running Amps
Maximum
Running Amps
Maximum
Start Amps
Nominal Kw Maximum Kw
SA-75 82.9 124.4 150.8 292.0 392.4
SA-100 110.4 165.6 204.0 391.0 828.0
SA-125 145.1 217.7 262.4 501.0 667.2
SA-150 167.9 251.9 307.3 594.0 771.9
SA-170 186.8 280.2 353.2 715.1 439.8
SA-210 220.8 331.2 408.0 784.1 828.0
SA-225 255.5 383.3 466.4 893.5 667.2
SA-250 270.8 406.2 495.4 1006.4 667.2
SA-270 290.2 435.3 524.8 1045.1 667.2
SA-300 331.2 496.8 612.0 1176.3 828.0
SA-325 356.9 535.4 670.4 1287.4 667.2
SA-350 389.6 584.4 708.4 1394.0 771.9
Note:1. Chiller total power includes all compressors and condenser fans running.
2.
Nominal Kw and Amps (above) apply when chiller is operating in an ambient temperature of 35˚c with a leaving chilled water temperature of 7˚c.
3. Max Kw and Amps (above) apply when chiller is operating at extreme limits beyond which safety controls will prevent higher values.
4. Max Start Amps occur when the last compressor starts while all other compressors and condenser fans are already running
5. Max running Amps values include compressors and fans.
LS Air-Cooled Water Chillers16

Chiller Control
Automatic PLC Controller
Model SA liquid chillers are equipped with PLC controllers which
are housed in the low voltage section of the unit Control Center.
The primary functions of the PLC are:
To automatically start and stop the chiller in response to•
“Cooling Demand”signals.
To start and stop individual compressors and associated•
condenser fans and to modulate the compressor capacity
by unloading the compressor slide valve in response to unit
cooling load.
To activate and control peripheral equipment (i.e. chilled water•
pumps).
To continuously monitor operating temperatures and safety•
controls and display readouts both locally and remotely.
Optimization – Main Auxiliary Unit
For multi-compressor units an optimization function is•
available to equalize the running time of each compressor/
condenser assembly.
For multi chiller installations one unit can be selected as the•
“master” and its controller will sequence up to 4 “slave” chillers.
(option)
Automatic and remote control
of peripherals
Remote start/stop function via cabled connection.•
On/Off of chiller and system peripherals together with•
functional monitoring can be achieved through remote BMS
System.
Time Table Running
Up to 3 start/stop programmes /day can be achieved.
Soft Loading Function
This ensures that the chiller will operate stably during system
start up, when large fluctuations in cooling load can occur.
Analogue data display function
This function monitors and displays analog signals of
refrigeration system temperatures and pressures.
Network Control Function
Model SA liquid chillers have interfaces for RS-232 & RS-485•
and can work with MODBUS protocols.
Each chiller can operate as a “Master” or “Slave”unit in a group•
control network. (option)
LS Air-Cooled Water Chillers 17

Typical Starter Diagram-1 Compressor
VP
107
D24
Z
Y
X
W
V
U
R11
S11
R2
PB
106
D24
T2
R2
380V
TR R02
T2
220V
700VA
R01
T01
NFB2
10A
S
2M
1M
S
2M
164
2M
161158
1MS
S0 T0
R0
T1
S1
R1
600V
NFB1
301 302 303
88
F4
F4
88
U42 V42
F3
V41U41
W42
W41
51
FM4
U31 V31
U32V32
F1
88
V21
V22
F1
W11
51
W12 U22
U21
F2
W22
W21
51
F2
88
FM3FM2
V11U11
V12U12
FM1
W32
W31
51
F3
KM1 KM2 KM3
231
230
C2
C1
R2 G
IT
CT
AI3 T2
232
88F1 88F2 88 F3
F1
51 F2
51 F3
51
R2 T2
171 172 173
233
88F4
F4
51
174
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
TO CONTROL
PANEL
R02
R02 R02
R2 R2
303
302
301
R2 231 232
KM1 KM3KM2
230 233
MP VP
106 107 D24 106 107 D24 E
R2
G
AI3
G
AI3
G
AI3
R2 R2
301
301
302
302
303
303
230
230
231
231
232
232
233
233
STARTER PNL CONTROL PNL BODY WIRING
STOP SGL.
EMERGERNCY
ABNORMAL SGL.
MOTOR&POWER
TRANSDUCER SGL.
CURRENT
CONTACTOR SIGNAL COOLING FANS SIGAL
FROM CONTROL PANEL
TO CONTROL PANEL
T2
T2 T2
R2 R2
R2
POWER
CTRL. PANEL
3. FROM/TO CONTROL PANEL.
2. THESE PARTS ARE LOCATED ON CHILLER BODY.
Note
1. THESE PARTS ARE LOCATED IN CONTROL PANEL.
ELECTRICAL PART LIST
11M,2M,S MAGNETIC CONTACTOR
2 NFB1
MOLDED CASED CIRCUIT BREAKER
3 NFB2 NO FUSE BREAKER
4 TR TRANSFORMER 700VA
5 PB EMERGERNCY STOP SWITCH
6 MP MOTOR PROTECT RELAY
7 VP POWER PROTECTOR
8 IT AMPERE TRANSDUCER
9CT CURRENT TRANSFORMER
10 88F1-4 MAGNETIC CONTACTOR
11 51F1-4 THERMAL RELAY
12 FM1-4 COOLING FAN
13 FAN COOLING FAN
14 KM1-3 AUX.RELAY CONTACT
FROM CONTROL PNL
T11
11
14
12L2
L3
L1
1
4
3
2
5
6
COMP
MOTOR
M2
M1
N
L
L1
MP
L3 L2
FAN
101 102100 103 105 106104 107
COM
R21 T21
FS SW
D24
F1/5A
E E
R22
223220 222221
PU
COM COM COMD24
CH XC
201
200
RS
110 111
COM
D24
OUT
C0 Y0 Y1 Y2 Y3 Y7Y6Y5
DVP-16SP
Y4
S/S X0 X1 X2 X3 X4 X5 X6 X7
IN
24V 0V
GNL
DVPPS02
TP04
- + G 0 24
RS-485
HP
LP
OL
OP
MP EKDVP
F.G
1
T2 R2
HQ
R20
T20
MCCB
10A
FAN
KM2
340
POWER 1PH 220VAC 50/60HZ
2
3
4
V3V1 V2V0 N.F.
T21
R21
E E E
402
401 403 404
KM2 XC
406
405 D24101 102 D24
SW RS
D24
103
PU
CH
T2
T2 T2
R2 R2
106
MP
107 D24
106 107 D24
R2
G
AI3 AI3 G
G
AI3
VP
E
1.
2. 4. 3.
ELECTRICAL PART LIST
1 FS FLOW SWITCH
2 PU CHW PUMP INTERLOCK SGL FROM USER
3 SW
REMOTE START/STOP SIGNAL
FROM USER
4 RS REMOTE RESET SIGNAL FROM USER
5 VP POWER PROTECT RELAY
6 MP MOTOR PROTECT RELAY
7 HP HIGH PERSSURE SWITCH
8 LP LOW PRESSURE SWITCH
9 OL OIL LEVEL SWITCH
10 OP OIL DIFF. PRESSURE SWITCH
11 TE01
ECHW TEMPERATURE SENSOR
PT100
12 TE02
LCHW TEMPERATURE SENSOR
PT100
13 TE03 FIN TEMPERATURE SENSOR PT100
14 TE04
SUCTION TEMPREATURE SENSOR
PT100
15 TE05
EXHAUST TEMPREATURE SENSOR
PT100
16 EP
EVAP PRESSURE TRANSMITTER
17 CP
COND PRESSURE TRANSMITTER
18 IT
CURRENT TRANSDUCER SIGNAL
19 KM1-3 AUX.RELAY (CONTACTOR)
20 CH AUX.RELAY (CHW PUMP)
21 XC AUX.RELAY (FAULT)
22 PY
SPRAY LIQUID SOLENOID VALVE
23 ETS E
LECTRONIC EXPANSION
VALVE
24 SV1 SOLENOID VALVE 25%
25 SV2 SOLENOID VALVE 75% 26 SV3 SOLENOID VALVE 50% 27 HQ OIL HEATER 28 FAN COOLING FANS
29 MCCB
MOLDED CASE CIRCUIT BREAKER
30 N.F. NOISE FILTER
31 F1-2 FUSE
32 V0-3 VARISTER
33 TR TRANSFORMER
34 EKD DRIVER MODULE -ETS
35 EC
ECONOMIZER SOLENOID VALVE
36 PB EMERGERNCY STOP SWITCH
120
OUT
C0 Y0 Y1 Y2 Y3 Y7Y6Y5
DVP-08SN
Y4
224 225 226
COM
D24
1C1B1A
TE01
2C2B2A
TE02
3C3B3A 4C4B4A
5C5B5A
TE05
COMD24 COMD24
24V G.
CH1
FGI-L-
DVP-04PT
L+ FGI-L-L+ . L+ L- I- FG L+ L- I- FG
CH2
CH3 CH4
0V 24V
G.
CH1
FGI-L-
DVP-04PT
L+ FGI-L-L+ .
L+ L- I- FG L+ L- I- FG
CH2
CH3 CH4
0V
COMD24
E
+-
EP
AI1
+-
CP
AI2
7
8
AI3 G
IT
AO1 ACOM
TO EKD
DVP-06XA
CH1
COM
I+V+
0V24V
GCOM
I+V+
CH2
COM
I+V+
CH3
COM
I+V+
COM
I+V+ COM
I+V+
CH4 CH5 CH6
D24 COM
302 303
303
302
301
R2 R2
R2
KM1 KM3KM2
231 232230
231 232230 231 232230
-
DVP-12SA
IN
0V24V G
OUT
S/S
C0
X0 X1 X2 X3 Y0 C1
RS-485
+
X4 X5 X6 X7
Y1 C2 Y2 Y3
227
KM1 KM2 KM3 EC PY SV1 SV3 SV2
AC220/24V
TR
R23
T23
R21 T21
F2/1A
R33
20VA
TO ELEC.EXP.VALVE (ETS)
501 502 503 504
302 303301
301
EKD
24VAC
-
12 5678
ETS
21 22 24 25 26
+
20
FROM PLC
D24 120
CH
AO1ACOM410
TO PLC
TE03 TE04
230 231 232 233
233
233 233
EE
FOR CHW PUMP
START/STOP SGL
FOR COMPRESSOR
RUN/STOP INDICATION
FOR FAULT
INDICATION
FOR FAULT
INDICATION
TO USER'S MCC
FOR CHW PUMP
INTERLOCK
FOR REMOTE
START/STOP SGL
FOR REMOTE
RESTART SGL
FROM USER'S MCC
CONTROL PNL STARTER PNL BODY WIRING
POWER
CTRL. PANEL
ABNORMAL SGL
MOTOR&POWER
TRANSDUCER SGL
CURRENT
FROM STARTER PANEL
CONTACTOR SIGNAL COOLING FANS RUN/STOP
TO STARTER PANEL
FANS RUN SGL
NOTE
SUPPLIED BY USERS
LOCATED ON CHILLER BODY
FROM/TO STARTER PANEL
FROM/TO USER'S MCC
R2R02
R2R02 R2R02
PB
STOP SGL
EMERGERNCY
11
14
12L2
L3
L1
VP-A
AZ
AY
AX
AW
AV
AU
R2
PB
R2 T2
380V
TR
R02
T2
220V
R01
T01
NFB2
10A
S-A
2M-A
1M-A
S-A
2M-A
161
2M
158
1M
S
AT1
AS1
AR1
600V
NFB1-A
301 302 303
-A
88F1
AU1
FM1
KM1 KM2 KM3
-A
-A -A -A
-A
-A
-A
S-B2M-B
171
2M
168
1MS
304 305 306
KM1 KM2 KM3 -B -B -B
-B
-B
-B
AU
AV
AW
106
D24
T2
R2
M2
M1
N
L
L1
MP-A
L3 L2
BU
BV
BW
123
D24
T2
R2
M2
M1
N
L
L1
MP-B
L3 L2
FAN
88F
1-A
230
323321
51F1 51F3
-A -A
88F
3-A 88F
5-A
232
326325
51F5 51F6
-A -A
88F
6-A 88F
1-B
329327
51F1 51F3
-B -B
88F
3-B 88F
5-B
51F5 51F6
-B -B
88F
6-B
231 233 244 246245 247T2
AT0
AS0
AR0
D24 107
ABZ
BY
BX
BW
BV
BU
S-B
2M-B
1M-B
BT1
BS1
BR1
600V
NFB1-B
B
BT0
BS0
BR0
VP-B
D24 124
11
14
12L2
L3
L1
-A
51F1
AV1 AW 1
-A
88F2
AU2
FM2
-A
-A
51F2
AV2 AW 2
-A
88F3
AU3
FM3
-A
-A
51F3
AV3 AW 3
-A
88F4
AU4
FM4
-A
-A
51F4
AV4 AW 4
COMP
MOTOR
-B
88F1
BU1
FM1
-B
-B
51F1
BV1 BW1
-B
88F2
BU2
FM2
-B
-B
51F2
BV2 BW2
-B
88F3
BU3
FM3
-B
-B
51F3
BV3 BW3
-B
88F4
BU4
FM4
-B
-B
51F4
BV4 BW4
COMP
MOTOR
T2
T2 T2
R2 R2
302 303
106
302 303
303
302301
R2 R2
R2 231 232
KM1 KM3KM2
233
-A -A-A
MP
301 301
230
231 232 233230 231 232 233230
-A -A
VP
107 D24
106 107 D24 E
R2R02
R02 R02
R2 R2
R2 AIG
AIG AIG
AI5 AI5
AI5
305 306
123
305 306
306
305304
R2 R2
R2 245 246
KM1 KM3KM2
247
-B -B-B
MP
304 304
244
245 246 247244 245 246 247244
-B -B
VP
124 D24
123 124 D24 E
AIG
AIG AIG
AI6 AI6
AI6
AC2
AC1
R2 G
IT-A
CT-A
AI5 T2
BC2
BC1
R2 G
IT-B
CT-B
AI6 T2
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
TO CONTROL
PANEL
3. FROM/TO CONTROL PANEL.
2. THESE PARTS ARE LOCATED ON CHILLER BODY.
Note
1. THESE PARTS ARE LOCATED IN CONTROL PANEL.
STARTER PNL CONTROL PNL BODY WIRING
STOP SGL.
EMERGERNCY
ABNORMAL SGL-A
MOTOR&POWER
TRANSDUCER SGL.
CURRENT-A
POWER
CTRL. PANEL
TO CONTROL PANEL
CONTACTOR SIGNAL-A COOLING FANS SIGAL-A
FROM CONTROL PANEL
STARTER PNL CONTROL PNL BODY WIRING
ABNORMAL SGL-B
MOTOR&POWER
TRANSDUCER SGL.
CURRENT-B
TO CONTROL PANEL
CONTACTOR SIGNAL-B COOLING FANS SIGAL-B
FROM CONTROL PANEL
ELECTRICAL PART LIST
11M,2M,S MAGNETIC CONTACTOR
2 NFB1
MOLDED CASED CIRCUIT BREAKER
3 NFB2 NO FUSE BREAKER
4 TR TRANSFORMER 700VA
5 PB EMERGERNCY STOP SWITCH
6 MP MOTOR PROTECT RELAY
7 VP POWER PROTECTOR 8 IT AMPERE TRANSDUCER
9CT CURRENT TRANSFORMER
10 88F1-6 MAGNETIC CONTACTOR
11 51F1-6 THERMAL RELAY
12 FM1-6 COOLING FAN
13 FAN COOLING FAN
14 KM1-3 AUX.RELAY CONTACT
FROM CONTROL PNL
1
4
3
2
5
6
1
4
3
2
5
6
-A
88F5
AU5
FM5
-A
-A
51F5
AV5 AW 5
-A
88F6
AU6
FM6
-A
-A
51F6
AV6 AW 6
-B
88F5
BU5
FM5
-B
-B
51F5
BV5 BW5
-B
88F6
BU6
FM6
-B
-B
51F6
BV6 BW6
88F
2-A
322
51F2
-A
324
51F4
-A
88F
4-A
328
51F2
-B
88F
2-B
51F4
-B
88F
4-B
330 331 332
LS Air-Cooled Water Chillers18

Typical Schematic Diagram-1 Compressor
VP
107
D24
Z
Y
X
W
V
U
R11
S11
R2
PB
106
D24
T2
R2
380V
TR
R02
T2
220V
700VA
R01
T01
NFB2
10A
S
2M
1M
S
2M
164
2M
161158
1MS
S0 T0
R0
T1
S1
R1
600V
NFB1
301 302 303
88
F4
F4
88
U42 V42
F3
V41U41
W42
W41
51
FM4
U31 V31
U32V32
F1
88
V21
V22
F1
W11
51
W12 U22
U21
F2
W22
W21
51
F2
88
FM3FM2
V11U11
V12U12
FM1
W32
W31
51
F3
KM1 KM2 KM3
231
230
C2
C1
R2 G
IT
CT
AI3 T2
232
88F1 88F2 88 F3
F1
51 F2
51 F3
51
R2 T2
171 172 173
233
88F4
F4
51
174
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
TO CONTROL
PANEL
R02
R02 R02
R2 R2
303
302
301
R2 231 232
KM1 KM3KM2
230 233
MP VP
106 107 D24 106 107 D24 E
R2
G
AI3
G
AI3
G
AI3
R2 R2
301
301
302
302
303
303
230
230
231
231
232
232
233
233
STARTER PNL CONTROL PNL BODY WIRING
STOP SGL.
EMERGERNCY
ABNORMAL SGL.
MOTOR&POWER
TRANSDUCER SGL.
CURRENT
CONTACTOR SIGNAL COOLING FANS SIGAL
FROM CONTROL PANEL
TO CONTROL PANEL
T2
T2 T2
R2 R2
R2
POWER
CTRL. PANEL
3. FROM/TO CONTROL PANEL.
2. THESE PARTS ARE LOCATED ON CHILLER BODY.
Note
1. THESE PARTS ARE LOCATED IN CONTROL PANEL.
ELECTRICAL PART LIST
11M,2M,S MAGNETIC CONTACTOR
2 NFB1
MOLDED CASED CIRCUIT BREAKER
3 NFB2 NO FUSE BREAKER
4 TR TRANSFORMER 700VA
5 PB EMERGERNCY STOP SWITCH
6 MP MOTOR PROTECT RELAY
7 VP POWER PROTECTOR
8 IT AMPERE TRANSDUCER
9CT CURRENT TRANSFORMER
10 88F1-4 MAGNETIC CONTACTOR
11 51F1-4 THERMAL RELAY
12 FM1-4 COOLING FAN
13 FAN COOLING FAN
14 KM1-3 AUX.RELAY CONTACT
FROM CONTROL PNL
T11
11
14
12L2
L3
L1
1
4
3
2
5
6
COMP
MOTOR
M2
M1
N
L
L1
MP
L3 L2
FAN
101 102100 103 105 106104 107
COM
R21 T21
FS SW
D24
F1/5A
E E
R22
223220 222221
PU
COM COM COMD24
CH XC
201
200
RS
110 111
COM
D24
OUT
C0 Y0 Y1 Y2 Y3 Y7Y6Y5
DVP-16SP
Y4
S/S X0 X1 X2 X3 X4 X5 X6 X7
IN
24V 0V
GNL
DVPPS02
TP04
- + G 0 24
RS-485
HP
LP
OL
OP
MP EKDVP
F.G
1
T2 R2
HQ
R20
T20
MCCB
10A
FAN
KM2
340
POWER 1PH 220VAC 50/60HZ
2
3
4
V3V1 V2V0 N.F.
T21
R21
E E E
402
401 403 404
KM2 XC
406
405 D24101 102 D24
SW RS
D24
103
PU
CH
T2
T2 T2
R2 R2
106
MP
107 D24
106 107 D24
R2
G
AI3 AI3 G
G
AI3
VP
E
1.
2.
4. 3.
ELECTRICAL PART LIST
1 FS FLOW SWITCH
2 PU CHW PUMP INTERLOCK SGL FROM USER
3 SW
REMOTE START/STOP SIGNAL
FROM USER
4 RS REMOTE RESET SIGNAL FROM USER
5 VP POWER PROTECT RELAY
6 MP MOTOR PROTECT RELAY
7 HP HIGH PERSSURE SWITCH
8 LP LOW PRESSURE SWITCH
9 OL OIL LEVEL SWITCH
10 OP OIL DIFF. PRESSURE SWITCH
11 TE01
ECHW TEMPERATURE SENSOR
PT100
12 TE02
LCHW TEMPERATURE SENSOR
PT100
13 TE03 FIN TEMPERATURE SENSOR PT100
14 TE04
SUCTION TEMPREATURE SENSOR
PT100
15 TE05
EXHAUST TEMPREATURE SENSOR
PT100
16 EP
EVAP PRESSURE TRANSMITTER
17 CP
COND PRESSURE TRANSMITTER
18 IT
CURRENT TRANSDUCER SIGNAL
19 KM1-3 AUX.RELAY (CONTACTOR)
20 CH AUX.RELAY (CHW PUMP)
21 XC AUX.RELAY (FAULT)
22 PY
SPRAY LIQUID SOLENOID VALVE
23 ETS E
LECTRONIC EXPANSION
VALVE
24 SV1 SOLENOID VALVE 25%
25 SV2 SOLENOID VALVE 75% 26 SV3 SOLENOID VALVE 50% 27 HQ OIL HEATER 28 FAN COOLING FANS
29 MCCB
MOLDED CASE CIRCUIT BREAKER
30 N.F. NOISE FILTER
31 F1-2 FUSE
32 V0-3 VARISTER
33 TR TRANSFORMER
34 EKD DRIVER MODULE -ETS
35 EC
ECONOMIZER SOLENOID VALVE
36 PB EMERGERNCY STOP SWITCH
120
OUT
C0 Y0 Y1 Y2 Y3 Y7Y6Y5
DVP-08SN
Y4
224 225 226
COM
D24
1C1B1A
TE01
2C2B2A
TE02
3C3B3A 4C4B4A
5C5B5A
TE05
COMD24 COMD24
24V G.
CH1
FGI-L-
DVP-04PT
L+ FGI-L-L+ .
L+ L- I- FG L+ L- I- FG
CH2
CH3 CH4
0V 24V
G.
CH1
FGI-L-
DVP-04PT
L+ FGI-L-L+ .
L+ L- I- FG L+ L- I- FG
CH2
CH3 CH4
0V
COMD24
E
+-
EP
AI1
+-
CP
AI2
7
8
AI3 G
IT
AO1 ACOM
TO EKD
DVP-06XA
CH1
COM
I+V+
0V24V
GCOM
I+V+
CH2
COM
I+V+
CH3
COM
I+V+
COM
I+V+ COM
I+V+
CH4 CH5 CH6
D24 COM
302 303
303
302
301
R2 R2
R2
KM1 KM3KM2
231 232230
231 232230 231 232230
-
DVP-12SA
IN
0V24V G
OUT
S/S
C0
X0 X1 X2 X3 Y0 C1
RS-485
+
X4 X5 X6 X7
Y1 C2 Y2 Y3
227
KM1 KM2 KM3 EC PY SV1 SV3 SV2
AC220/24V
TR
R23
T23
R21 T21
F2/1A
R33
20VA
TO ELEC.EXP.VALVE (ETS)
501 502 503 504
302 303301
301
EKD
24VAC
-
12 5678
ETS
21 22 24 25 26
+
20
FROM PLC
D24 120
CH
AO1ACOM410
TO PLC
TE03 TE04
230 231 232 233
233
233 233
EE
FOR CHW PUMP
START/STOP SGL
FOR COMPRESSOR
RUN/STOP INDICATION
FOR FAULT
INDICATION
FOR FAULT
INDICATION
TO USER'S MCC
FOR CHW PUMP
INTERLOCK
FOR REMOTE
START/STOP SGL
FOR REMOTE
RESTART SGL
FROM USER'S MCC
CONTROL PNL STARTER PNL BODY WIRING
POWER
CTRL. PANEL
ABNORMAL SGL
MOTOR&POWER
TRANSDUCER SGL
CURRENT
FROM STARTER PANEL
CONTACTOR SIGNAL COOLING FANS RUN/STOP
TO STARTER PANEL
FANS RUN SGL
NOTE
SUPPLIED BY USERS
LOCATED ON CHILLER BODY
FROM/TO STARTER PANEL
FROM/TO USER'S MCC
R2R02
R2R02 R2R02
PB
STOP SGL
EMERGERNCY
11
14
12L2
L3
L1
VP-A
AZ
AY
AX
AW
AV
AU
R2
PB
R2 T2
380V
TR
R02
T2
220V
R01
T01
NFB2
10A
S-A
2M-A
1M-A
S-A
2M-A
161
2M
158
1M
S
AT1
AS1
AR1
600V
NFB1-A
301 302 303
-A
88F1
AU1
FM1
KM1 KM2 KM3
-A
-A -A -A
-A
-A
-A
S-B2M-B
171
2M
168
1MS
304 305 306
KM1 KM2 KM3 -B -B -B
-B
-B
-B
AU
AV
AW
106
D24
T2
R2
M2
M1
N
L
L1
MP-A
L3 L2
BU
BV
BW
123
D24
T2
R2
M2
M1
N
L
L1
MP-B
L3 L2
FAN
88F
1-A
230
323321
51F1 51F3
-A -A
88F
3-A 88F
5-A
232
326325
51F5 51F6
-A -A
88F
6-A 88F
1-B
329327
51F1 51F3
-B -B
88F
3-B 88F
5-B
51F5 51F6
-B -B
88F
6-B
231 233 244 246245 247T2
AT0
AS0
AR0
D24 107
ABZ
BY
BX
BW
BV
BU
S-B
2M-B
1M-B
BT1
BS1
BR1
600V
NFB1-B
B
BT0
BS0
BR0
VP-B
D24 124
11
14
12L2
L3
L1
-A
51F1
AV1 AW 1
-A
88F2
AU2
FM2
-A
-A
51F2
AV2 AW 2
-A
88F3
AU3
FM3
-A
-A
51F3
AV3 AW 3
-A
88F4
AU4
FM4
-A
-A
51F4
AV4 AW 4
COMP
MOTOR
-B
88F1
BU1
FM1
-B
-B
51F1
BV1 BW1
-B
88F2
BU2
FM2
-B
-B
51F2
BV2 BW2
-B
88F3
BU3
FM3
-B
-B
51F3
BV3 BW3
-B
88F4
BU4
FM4
-B
-B
51F4
BV4 BW4
COMP
MOTOR
T2
T2 T2
R2 R2
302 303
106
302 303
303
302301
R2 R2
R2 231 232
KM1 KM3KM2
233
-A -A-A
MP
301 301
230
231 232 233230 231 232 233230
-A -A
VP
107 D24
106 107 D24 E
R2R02
R02 R02
R2 R2
R2 AIG
AIG AIG
AI5 AI5
AI5
305 306
123
305 306
306
305304
R2 R2
R2 245 246
KM1 KM3KM2
247
-B -B-B
MP
304 304
244
245 246 247244 245 246 247244
-B -B
VP
124 D24
123 124 D24 E
AIG
AIG AIG
AI6 AI6
AI6
AC2
AC1
R2 G
IT-A
CT-A
AI5 T2
BC2
BC1
R2 G
IT-B
CT-B
AI6 T2
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
TO CONTROL
PANEL
3. FROM/TO CONTROL PANEL.
2. THESE PARTS ARE LOCATED ON CHILLER BODY.
Note
1. THESE PARTS ARE LOCATED IN CONTROL PANEL.
STARTER PNL CONTROL PNL BODY WIRING
STOP SGL.
EMERGERNCY
ABNORMAL SGL-A
MOTOR&POWER
TRANSDUCER SGL.
CURRENT-A
POWER
CTRL. PANEL
TO CONTROL PANEL
CONTACTOR SIGNAL-A COOLING FANS SIGAL-A
FROM CONTROL PANEL
STARTER PNL CONTROL PNL BODY WIRING
ABNORMAL SGL-B
MOTOR&POWER
TRANSDUCER SGL.
CURRENT-B
TO CONTROL PANEL
CONTACTOR SIGNAL-B COOLING FANS SIGAL-B
FROM CONTROL PANEL
ELECTRICAL PART LIST
11M,2M,S MAGNETIC CONTACTOR
2 NFB1
MOLDED CASED CIRCUIT BREAKER
3 NFB2 NO FUSE BREAKER
4 TR TRANSFORMER 700VA
5 PB EMERGERNCY STOP SWITCH
6 MP MOTOR PROTECT RELAY
7 VP POWER PROTECTOR 8 IT AMPERE TRANSDUCER
9CT CURRENT TRANSFORMER
10 88F1-6 MAGNETIC CONTACTOR
11 51F1-6 THERMAL RELAY
12 FM1-6 COOLING FAN
13 FAN COOLING FAN
14 KM1-3 AUX.RELAY CONTACT
FROM CONTROL PNL
1
4
3
2
5
6
1
4
3
2
5
6
-A
88F5
AU5
FM5
-A
-A
51F5
AV5 AW 5
-A
88F6
AU6
FM6
-A
-A
51F6
AV6 AW 6
-B
88F5
BU5
FM5
-B
-B
51F5
BV5 BW5
-B
88F6
BU6
FM6
-B
-B
51F6
BV6 BW6
88F
2-A
322
51F2
-A
324
51F4
-A
88F
4-A
328
51F2
-B
88F
2-B
51F4
-B
88F
4-B
330 331 332
LS Air-Cooled Water Chillers 19

Typical Starter Diagram-2 Compressor
VP
107
D24
Z
Y
X
W
V
U
R11
S11
R2
PB
106
D24
T2
R2
380V
TR
R02
T2
220V
700VA
R01
T01
NFB2
10A
S
2M
1M
S
2M
164
2M
161158
1MS
S0 T0
R0
T1
S1
R1
600V
NFB1
301 302 303
88
F4
F4
88
U42 V42
F3
V41U41
W42
W41
51
FM4
U31 V31
U32V32
F1
88
V21
V22
F1
W11
51
W12 U22
U21
F2
W22
W21
51
F2
88
FM3FM2
V11U11
V12U12
FM1
W32
W31
51
F3
KM1 KM2 KM3
231
230
C2
C1 R2
G
IT
CT
AI3 T2
232
88F1 88F2 88 F3
F1
51 F2
51 F3
51
R2 T2
171 172 173
233
88F4
F4
51
174
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
TO CONTROL
PANEL
R02
R02 R02
R2 R2
303
302
301
R2 231 232
KM1 KM3KM2
230 233
MP VP
106 107 D24 106 107 D24 E
R2
G
AI3
G
AI3
G
AI3
R2 R2
301
301
302
302
303
303
230
230
231
231
232
232
233
233
STARTER PNL CONTROL PNL BODY WIRING
STOP SGL.
EMERGERNCY
ABNORMAL SGL.
MOTOR&POWER
TRANSDUCER SGL.
CURRENT
CONTACTOR SIGNAL COOLING FANS SIGAL
FROM CONTROL PANEL
TO CONTROL PANEL
T2
T2 T2
R2 R2
R2
POWER
CTRL. PANEL
3. FROM/TO CONTROL PANEL.
2. THESE PARTS ARE LOCATED ON CHILLER BODY.
Note
1. THESE PARTS ARE LOCATED IN CONTROL PANEL.
ELECTRICAL PART LIST
11M,2M,S MAGNETIC CONTACTOR
2 NFB1
MOLDED CASED CIRCUIT BREAKER
3 NFB2 NO FUSE BREAKER
4 TR TRANSFORMER 700VA
5 PB EMERGERNCY STOP SWITCH
6 MP MOTOR PROTECT RELAY
7 VP POWER PROTECTOR
8 IT AMPERE TRANSDUCER
9CT CURRENT TRANSFORMER
10 88F1-4 MAGNETIC CONTACTOR
11 51F1-4 THERMAL RELAY
12 FM1-4 COOLING FAN
13 FAN COOLING FAN
14 KM1-3 AUX.RELAY CONTACT
FROM CONTROL PNL
T11
11
14
12L2
L3
L1
1
4
3
2
5
6
COMP
MOTOR
M2
M1
N
L
L1
MP
L3 L2
FAN
101 102100 103 105 106104 107
COM
R21 T21
FS SW
D24
F1/5A
E E
R22
223220 222221
PU
COM COM COMD24
CH XC
201
200
RS
110 111
COM
D24
OUT
C0 Y0 Y1 Y2 Y3 Y7Y6Y5
DVP-16SP
Y4
S/S X0 X1 X2 X3 X4 X5 X6 X7
IN
24V 0V
GNL
DVPPS02
TP04
- + G 0 24
RS-485
HP
LP
OL
OP
MP EKDVP
F.G
1
T2 R2
HQ
R20
T20
MCCB
10A
FAN
KM2
340
POWER 1PH 220VAC 50/60HZ
2
3
4
V3V1 V2V0 N.F.
T21
R21
E E E
402
401 403 404
KM2 XC
406
405 D24101 102 D24
SW RS
D24
103
PU
CH
T2
T2 T2
R2 R2
106
MP
107 D24
106 107 D24
R2
G
AI3 AI3 G
G
AI3
VP
E
1.
2. 4. 3.
ELECTRICAL PART LIST
1 FS FLOW SWITCH
2 PU CHW PUMP INTERLOCK SGL FROM USER
3 SW
REMOTE START/STOP SIGNAL
FROM USER
4 RS REMOTE RESET SIGNAL FROM USER
5 VP POWER PROTECT RELAY
6 MP MOTOR PROTECT RELAY
7 HP HIGH PERSSURE SWITCH
8 LP LOW PRESSURE SWITCH
9 OL OIL LEVEL SWITCH
10 OP OIL DIFF. PRESSURE SWITCH
11 TE01
ECHW TEMPERATURE SENSOR
PT100
12 TE02
LCHW TEMPERATURE SENSOR
PT100
13 TE03 FIN TEMPERATURE SENSOR PT100
14 TE04
SUCTION TEMPREATURE SENSOR
PT100
15 TE05
EXHAUST TEMPREATURE SENSOR
PT100
16 EP
EVAP PRESSURE TRANSMITTER
17 CP
COND PRESSURE TRANSMITTER
18 IT
CURRENT TRANSDUCER SIGNAL
19 KM1-3 AUX.RELAY (CONTACTOR)
20 CH AUX.RELAY (CHW PUMP)
21 XC AUX.RELAY (FAULT)
22 PY
SPRAY LIQUID SOLENOID VALVE
23 ETS E
LECTRONIC EXPANSION
VALVE
24 SV1 SOLENOID VALVE 25%
25 SV2 SOLENOID VALVE 75% 26 SV3 SOLENOID VALVE 50% 27 HQ OIL HEATER 28 FAN COOLING FANS
29 MCCB
MOLDED CASE CIRCUIT BREAKER
30 N.F. NOISE FILTER
31 F1-2 FUSE
32 V0-3 VARISTER
33 TR TRANSFORMER
34 EKD DRIVER MODULE -ETS
35 EC
ECONOMIZER SOLENOID VALVE
36 PB EMERGERNCY STOP SWITCH
120
OUT
C0 Y0 Y1 Y2 Y3 Y7Y6Y5
DVP-08SN
Y4
224 225 226
COM
D24
1C1B1A
TE01
2C2B2A
TE02
3C3B3A 4C4B4A
5C5B5A
TE05
COMD24 COMD24
24V G.
CH1
FGI-L-
DVP-04PT
L+ FGI-L-L+ . L+ L- I- FG L+ L- I- FG
CH2
CH3 CH4
0V 24V
G.
CH1
FGI-L-
DVP-04PT
L+ FGI-L-L+ .
L+ L- I- FG L+ L- I- FG
CH2
CH3 CH4
0V
COMD24
E
+-
EP
AI1
+-
CP
AI2
7
8
AI3 G
IT
AO1 ACOM
TO EKD
DVP-06XA
CH1
COM
I+V+
0V24V
GCOM
I+V+
CH2
COM
I+V+
CH3
COM
I+V+
COM
I+V+ COM
I+V+
CH4 CH5 CH6
D24 COM
302 303
303
302
301
R2 R2
R2
KM1 KM3KM2
231 232230
231 232230 231 232230
-
DVP-12SA
IN
0V24V G
OUT
S/S
C0
X0 X1 X2 X3 Y0 C1
RS-485
+
X4 X5 X6 X7
Y1 C2 Y2 Y3
227
KM1 KM2 KM3 EC PY SV1 SV3 SV2
AC220/24V
TR
R23
T23
R21 T21
F2/1A
R33
20VA
TO ELEC.EXP.VALVE (ETS)
501 502 503 504
302 303301
301
EKD
24VAC
-
12 5678
ETS
21 22 24 25 26
+
20
FROM PLC
D24 120
CH
AO1ACOM410
TO PLC
TE03 TE04
230 231 232 233
233
233 233
EE
FOR CHW PUMP
START/STOP SGL
FOR COMPRESSOR
RUN/STOP INDICATION
FOR FAULT
INDICATION
FOR FAULT
INDICATION
TO USER'S MCC
FOR CHW PUMP
INTERLOCK
FOR REMOTE
START/STOP SGL
FOR REMOTE
RESTART SGL
FROM USER'S MCC
CONTROL PNL STARTER PNL BODY WIRING
POWER
CTRL. PANEL
ABNORMAL SGL
MOTOR&POWER
TRANSDUCER SGL
CURRENT
FROM STARTER PANEL
CONTACTOR SIGNAL COOLING FANS RUN/STOP
TO STARTER PANEL
FANS RUN SGL
NOTE
SUPPLIED BY USERS
LOCATED ON CHILLER BODY
FROM/TO STARTER PANEL
FROM/TO USER'S MCC
R2R02
R2R02 R2R02
PB
STOP SGL
EMERGERNCY
11
14
12L2
L3
L1
VP-A
AZ
AY
AX
AW
AV
AU
R2
PB
R2 T2
380V
TR
R02
T2
220V
R01
T01
NFB2
10A
S-A
2M-A
1M-A
S-A
2M-A
161
2M
158
1M
S
AT1
AS1
AR1
600V
NFB1-A
301 302 303
-A
88F1
AU1
FM1
KM1 KM2 KM3
-A
-A -A -A
-A
-A
-A
S-B2M-B
171
2M
168
1MS
304 305 306
KM1 KM2 KM3 -B -B -B
-B
-B
-B
AU
AV
AW
106
D24
T2
R2
M2
M1
N
L
L1
MP-A
L3 L2
BU
BV
BW
123
D24
T2
R2
M2
M1
N
L
L1
MP-B
L3 L2
FAN
88F
1-A
230
323321
51F1 51F3
-A -A
88F
3-A 88F
5-A
232
326325
51F5 51F6
-A -A
88F
6-A 88F
1-B
329327
51F1 51F3
-B -B
88F
3-B 88F
5-B
51F5 51F6
-B -B
88F
6-B
231 233 244 246245 247T2
AT0
AS0
AR0
D24 107
ABZ
BY
BX
BW
BV
BU
S-B
2M-B
1M-B
BT1
BS1
BR1
600V
NFB1-B
B
BT0
BS0
BR0
VP-B
D24 124
11
14
12L2
L3
L1
-A
51F1
AV1 AW 1
-A
88F2
AU2
FM2
-A
-A
51F2
AV2 AW 2
-A
88F3
AU3
FM3
-A
-A
51F3
AV3 AW 3
-A
88F4
AU4
FM4
-A
-A
51F4
AV4 AW 4
COMP
MOTOR
-B
88F1
BU1
FM1
-B
-B
51F1
BV1 BW1
-B
88F2
BU2
FM2
-B
-B
51F2
BV2 BW2
-B
88F3
BU3
FM3
-B
-B
51F3
BV3 BW3
-B
88F4
BU4
FM4
-B
-B
51F4
BV4 BW4
COMP
MOTOR
T2
T2 T2
R2 R2
302 303
106
302 303
303
302301
R2 R2
R2 231 232
KM1 KM3KM2
233
-A -A-A
MP
301 301
230
231 232 233230 231 232 233230
-A -A
VP
107 D24
106 107 D24 E
R2R02
R02 R02
R2 R2
R2 AIG
AIG AIG
AI5 AI5
AI5
305 306
123
305 306
306
305304
R2 R2
R2 245 246
KM1 KM3KM2
247
-B -B-B
MP
304 304
244
245 246 247244 245 246 247244
-B -B
VP
124 D24
123 124 D24 E
AIG
AIG AIG
AI6 AI6
AI6
AC2
AC1
R2 G
IT-A
CT-A
AI5 T2
BC2
BC1
R2 G
IT-B
CT-B
AI6 T2
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
3PH 380VAC 50/60HZ
MAIN POWER SUPPLY
TO CONTROL
PANEL
3. FROM/TO CONTROL PANEL.
2. THESE PARTS ARE LOCATED ON CHILLER BODY.
Note
1. THESE PARTS ARE LOCATED IN CONTROL PANEL.
STARTER PNL CONTROL PNL BODY WIRING
STOP SGL.
EMERGERNCY
ABNORMAL SGL-A
MOTOR&POWER
TRANSDUCER SGL.
CURRENT-A
POWER
CTRL. PANEL
TO CONTROL PANEL
CONTACTOR SIGNAL-A COOLING FANS SIGAL-A
FROM CONTROL PANEL
STARTER PNL CONTROL PNL BODY WIRING
ABNORMAL SGL-B
MOTOR&POWER
TRANSDUCER SGL.
CURRENT-B
TO CONTROL PANEL
CONTACTOR SIGNAL-B COOLING FANS SIGAL-B
FROM CONTROL PANEL
ELECTRICAL PART LIST
11M,2M,S MAGNETIC CONTACTOR
2 NFB1
MOLDED CASED CIRCUIT BREAKER
3 NFB2 NO FUSE BREAKER
4 TR TRANSFORMER 700VA
5 PB EMERGERNCY STOP SWITCH
6 MP MOTOR PROTECT RELAY
7 VP POWER PROTECTOR 8 IT AMPERE TRANSDUCER
9CT CURRENT TRANSFORMER
10 88F1-6 MAGNETIC CONTACTOR
11 51F1-6 THERMAL RELAY
12 FM1-6 COOLING FAN
13 FAN COOLING FAN
14 KM1-3 AUX.RELAY CONTACT
FROM CONTROL PNL
1
4
3
2
5
6
1
4
3
2
5
6
-A
88F5
AU5
FM5
-A
-A
51F5
AV5 AW 5
-A
88F6
AU6
FM6
-A
-A
51F6
AV6 AW 6
-B
88F5
BU5
FM5
-B
-B
51F5
BV5 BW5
-B
88F6
BU6
FM6
-B
-B
51F6
BV6 BW6
88F
2-A
322
51F2
-A
324
51F4
-A
88F
4-A
328
51F2
-B
88F
2-B
51F4
-B
88F
4-B
330 331 332
LS Air-Cooled Water Chillers20