York Screw Chiller

York Screw Chiller

The RWK II-BC/RC York Screw Chiller Series is a highly efficient and reliable solution designed for commercial and industrial applications.Using R22 refrigerant,these chillers offer exceptional performance in cooling applications such as chemical process cooling,office buildings,shopping malls,factories,and medical institutions.Known for their mature technology and safe operation,they provide efficient refrigeration systems with a focus on energy savings,low noise,and long service life.

Description

1.High Energy Efficiency

The York Screw Chiller series uses York twin-screw open compressors,which feature an advanced asymmetric original shaft design.This design significantly improves energy efficiency,reducing operational costs and enhancing performance over time.

-The high energy efficiency ratio(EER)ensures that the unit delivers reliable cooling with minimal energy consumption.

2.Long Service Life

The compressors in the RWK II-BC/RC York Screw Chiller units are equipped with anti-friction rolling bearings,offering an L10 service life of up to 1,000,000 hours under design conditions.

-The oil-free pump lubrication system ensures that all oil injection and lubrication are achieved through positive pressure differences,reducing wear and prolonging the life of the compressor.

3.Advanced Control and Safety Features

The Next View Controller is a new-generation control center that provides easy operation and displays key operating parameters.It also supports automatic control and safety protection for both the compressor and refrigeration system.

-This control system offers powerful data processing and expansion capabilities and supports Chinese/English display,making it adaptable to different regions and applications.

4.Low-Noise Operation

The unit features a low-noise open motor,which is connected to the compressor via a DF flange,simplifying installation and eliminating the need for on-site calibration.This makes the unit quieter during operation,improving the working environment.

5.Efficient Oil and Gas Separation

The unit includes a high-efficiency oil separator with a horizontal three-stage separation design.It is equipped with an integrated oil tank and a replaceable oil accumulation filter that ensures oil and gas separation particles are reduced to less than 1 micron.

-This ensures the cleanliness of the lubricating oil system,further enhancing the service life and efficiency of the compressor.

6.Compact and Easy Maintenance

The system is designed with a compact structure,saving space and making it easy to install and maintain.

-The shell-and-tube condenser and evaporator are designed for simplicity,providing easy access for maintenance and enhancing the operational lifespan of the system.

Model York RWK II-BC/RC screw refrigeration brine unit

York RWK II-BC/RC screw refrigeration brine unit

Refrigeration Capacity 628-1663 kW(specific cooling capacity adjustable based on needs)
Power Supply 10KV/50Hz
Refrigerant Type R22
Cooling Water Temperature 32°C(inlet)
Chilled Water Temperature -15°C(outlet)
Water Temperature Difference 5°C

 

Application

The York RWK II-BC/RC York Screw Chiller is widely used in various sectors,including: 

Commercial Buildings

(e.g.,office buildings,shopping malls)

Industrial Facilities

(e.g.,manufacturing plants,warehouses)

Medical Institutions

(e.g.,hospitals,laboratories)

Hotels and Large Entertainment Venues

 

These chillers offer flexible,high-efficiency cooling solutions across a broad range of industries,providing reliable performance,ease of maintenance,and reduced operating costs. 

 

parameters

 

Brine unit (BC) technical parameters
Standard Configuration
Units model   RWKII40-BC RWKII50-BC RWKII65-BC RWKII85-BC RWKII100-BC
Compressor Model   XJF151N YFG1918 YFG2313 YFG2317 YFG2321
Capacity adjustment
range
  25%~100%

 

10%~100%

refrigerant   R22
Refrigerant charge kg 200 275 415 400 500
Lubricating oil type   FRICK #2A
Oil filling amount L 190 210 370 370 460
Motor Rated voltage V 380
frequency Hz 50
Rated speed r/min 2950
power kW Configure according to the corresponding
working conditions
Dimension2 Length mm 4320 4365 5380 5350 5820
Width mm 2220 2260 2620 2690 2700
Height mm 2170 2370 2650 2750 2700
Unit weight (including motor) kg 7050 8200 10700 11800 13000
Unit operating weight kg 7330 8490 11100 12210 13680
Evaporator* Coolant interface mm DN200 DN200 DN250 DN250 DN350
Medium flow L/s 24 30 41 52 64
Pressure Drop kPa 40 63 72 82 105
Condenser Cooling water interface mm DN125 DN125 DN200 DN200 DN200
Medium flow L/s 30 37 49 63 78
Pressure Drop kPa 81 85 81 92 88
Select Configuration
High voltage
motor
Voltage

 
V / 10KV
Frequency Hz 50
RPM r/min 2950
Rated Power kW Configure according to application
conditions

 

Normal operating technical parameters of brine unit (BC)
RWKII-40BC Cooling water inlet temperature (℃)
24 26 30 32
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 628 144 624 152 613 167 607 176
-10 538 141 534 149 522 163 517 171
-15 453 140 447 147 439 160 434 166
-20 368 135 364 140 358 152 352 158
-25 301 127 298 132 291 142 289 147
                   
RWKII-50BC Cooling water inlet temperature (℃)
24 26 30 32
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 786 186 780 196 766 213 760 223
-10 677 180 671 189 658 207 651 217
-15 571 178 565 187 553 206 546 216
-20 471 174 468 180 458 194 455 202
-25 388 162 384 168 377 181 373 188
                   
RWKII-65BC Cooling water inlet temperature (℃)
24 26 30 32
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 1071 268 1064 277 1043 299 1033 310
-10 914 254 905 264 877 285 878 296
-15 769 242 761 251 746 272 738 284
-20 634 243 629 251 616 268 609 257
-25 522 225 517 233 505 249 499 257
                   
RWKII-85BC Cooling water inlet temperature (℃)
24 26 30 32
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 1342 318 1330 335 1309 365 1296 381
-10 1153 309 1143 323 1124 354 1112 370
-15 976 303 966 318 949 349 937 366
-20 807 295 802 307 784 331 775 344
-25 663 277 656 287 643 309 635 320
                   
RWKII-100BC Cooling water inlet temperature (℃)
24 26 30 32
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 1663 394 1643 415 1618 452 1600 474
-10 1423 379 1410 387 1382 435 1391 455
-15 1199 373 1187 391 1161 430 1170 450
-20 986 359 976 373 955 402 971 424
-25 813 337 797 350 784 378 774 392

 

Brine unit (RC) technical parameters
Standard Configuration
Units model   RWKII40-BC RWKII50-BC RWKII65-BC RWKII85-BC RWKII100-BC
Compressor Model   XJF151N YFG1918 YFG2313 YFG2317 YFG2321
Capacity adjustment
range
  25%~100% 10%~100%
refrigerant   R22
Storage bottle capacity L 750 750 1250 1250 1250
Lubricating oil type   FRICK #2A
Oil filling amount L 190 210 370 370 460
Motor Rated voltage V 380
frequency Hz 50
Rated speed r/min 2950
power kW Configure according to the corresponding
working conditions
Dimension2 Length mm 4320 4340 5375 5335 5815
Width mm 2220 2260 2620 2620 2690
Height mm 2170 2370 2650 2750 2700
Unit weight (including motor) kg 6550 8000 9900 10700 11800
Unit operating weight kg 6850 8300 10260 11100 12250
system Oil separator outlet
pipe specifications
DN100 DN100 DN100 DN100 DN100
Tank inlet pipe
specifications
DN50 DN50 DN50 DN50 DN50
Evaporator* Refrigerant interface
specifications
DN200 DN200 DN200 DN200 DN200
Medium flow L/s 24 30 41 52 64
Pressure Drop kPa 40 63 72 82 105
Select Configuration
High voltage
motor

 

Voltage
 

V / 10KV
Frequency Hz 50
RPM r/min 2950
Rated Power kW Configure according to application
conditions

 

Technical parameter table of salt water unit (RC) under normal working conditions
RWKII-40RC Cooling water inlet temperature (℃)
32 34 38 40
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 628 144 624 152 613 167 607 172
-10 538 141 534 149 522 163 517 171
-15 453 140 447 147 439 160 434 166
-20 368 135 364 140 358 152 352 158
-25 301 127 298 132 291 142 289 147
                   
RWKII-50RC Cooling water inlet temperature (℃)
32 34 38 40
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 786 186 780 196 766 213 760 223
-10 677 180 671 189 658 207 651 217
-15 571 178 565 187 553 206 546 216
-20 471 174 468 180 458 194 455 202
-25 388 162 384 168 377 181 373 188
                   
RWKII-65RC Cooling water inlet temperature (℃)
32 34 38 40
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 1071 268 1064 277 1043 299 1033 310
-10 914 254 905 264 877 285 878 296
-15 769 242 761 251 746 272 738 284
-20 634 243 629 251 616 268 609 257
-25 522 225 517 233 505 249 499 257
                   
RWKII-85RC Cooling water inlet temperature (℃)
32 34 38 40
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 1342 318 1330 335 1309 365 1296 381
-10 1153 309 1143 323 1124 354 1112 370
-15 976 303 966 318 949 349 937 366
-20 807 295 802 307 784 331 775 344
-25 663 277 656 287 642 309 635 320
                   
RWKII-100RC Cooling water inlet temperature (℃)
32 34 38 40
R22 Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Cooling
capacity
(KW)
Shaft power
(KW)
Refrigerant ethylene glycol outlet water temperature (℃) -5 1663 394 1643 415 1618 452 1600 474
-10 1423 379 1410 397 1382 435 1391 455
-15 1199 373 1187 391 1161 430 1170 450
-20 986 359 976 373 955 402 971 424
-25 813 337 797 350 784 378 774 392

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