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Screw Compressor Condensing Unit

Screw Compressor Condensing Unit

Description
Screw compressor condensing unit is also used for changing refrigerant vapor into liquid form. The power unit is supplied by the famous BITZER Company. This condensing device mainly consists of screw compressors (high temperature), condenser (water cooled, air cooled or evaporative cooled), liquid reservoir, valves and economizer. Screw compressor condensing unit is suitable for all kinds of working conditions.

Features and Advantages
1. Screw compressor of this condensing device has a simple structure and less quick-wear parts. It can work in the conditions of large pressure difference or pressure ratio.
2. Exhaust gas temperature of screw compressor condensing unit is low. This unit is not sensitive to the lubrication oil in the refrigerant. It can well adjust the gas output.
3. This multi-compressor condensing unit or condensing device can save more than 20% of energy than using stand-alone units.
4. The screw rotor revolves when it compresses the air. The speed of the rotor can be increased in this way. When the gas output is same, the screw compressor is smaller and it occupies smaller space. It is lightweight. There is no reciprocating force in its movement. The compressor doesn’t have much demand of good ground condition.
5. Screw compressor condensing unit runs safely. It has fault early warning function. All the parameters can be monitored at any time.
6. This condensing device has a compact structure. It saves space and construction time.
7. A controller from the Italian DIXELL Company or advanced American controller especially used for parallel connected machine is adopted to achieve complete automation.
8. The screw compressor condensing unit not only has complete protective functions, but also has many warning functions and fault code display function.

Use and Maintenance
1. In order to keep the condensing device in a good condition, the condenser, filter and evaporator should be cleaned regularly.
2. Clients should not use chilled water pump when water tank is empty.
3. The temperature switches of screw compressor condensing unit should not be set to below 5℃ to prevent the evaporator from freezing.
4. When temperature of the chilled water reaches the set value, the compressor would stop automatically.
5. After the condensing device has run continuously for 10000 hours, clients should check the lubrication oil.
6. It is suggested to change lubrication oil and wash the filter after the screw compressor condensing unit has run 1000 hours for the first time.


Screw Compressor Condensing Unit of Low Temperature ( with Economizer)  
 
Unit Model HP Compressor Model QTY Ref. Capacity kW Overall Size
-40℃ -35℃ -33℃ -30℃ -25℃ A B C
2BSHN-150/L 150 HSN7471-75 2 91 119 132 151 247 2800 1950 2460
3BSHN-210/L 210 HSN7461-70 3 120 757 174 199 280 3400 2050 1970
3BSHN-225/L 225 HSN7471-75 3 136 179 198 227 329 3400 2050 2460
4BSHN-280/L 280 HSN7461-70 4 160 210 232 266 329 4300 2050 2460
4BSHN-300/L 300 HSN7471-75 4 182 239 264 302 374 4300 2050 2460
5BSHN-350/L 350 HSN7461-70 5 201 263 290 330 411 5200 2050 2470
5BSHN-375/L 375 HSN7471-75 5 228 299 330 378 467 5200 2050 2470
6BSHN-420/L 420 HSN7461-70 6 241 315 948 399 493 6100 2050 2470
6BSHN-450/L 450 HSN7471-75 6 273 358 396 454 561 6100 2050 2470

 

Screw Compressor Condensing Unit of Medium Temperature
 
Unit Model HP Compressor Model QTY Ref. Capacity kW Overall Size
-40℃ -35℃ -33℃ -30℃ -25℃ A B C
2BSHN-180/L 180 HSN7471-90 2 213 243 264 322 389 2800 1300 2460
3BSHN-240/L 240 HSN7461-80 3 281 321 348 426 514 3400 1200 1970
3BSHN-270/L 270 HSN7471-90 3 320 364 396 284 584 3400 1300 2460
4BSHN-320/L 320 HSN7461-80 4 375 428 465 568 685 4300 1300 2460
4BSHN-360/L 360 HSN7471-90 4 426 486 528 645 779 4300 1300 2460
5BSHN-400/L 400 HSN7461-80 5 469 535 581 710 857 5200 1300 2470
5BSHN-450/L 450 HSN7471-90 5 533 607 661 807 974 5200 1300 2470
6BSHN-480/L 480 HSN7461-80 6 563 642 697 852 1028 6100 1300 2470
6BSHN-450/L 450 HSN7471-90 6 640 729 793 968 1168 6100 1300 2470