Air Cooled Screw Water Chiller

water cooled screw water chiller

Environmental responsibility
- A more ecient chiller means less power consumption, which reduces greenhouse gas(CO2) emissions.

- R134a friendly refrigerant has no ozone-depletion potential.
- High eciency,world class,sustainable and reliable performance.
Lowest total cost of ownership
- Reliability, low risk of uncomfortable downtime.
- The best parts, Bitzer Comp. &Danfoss EXV, Shneider electric.
- World-class testing facilities ensure the performance and reliability.
- Each unit was extensively tested to verify its operational reliability and to ensure a smooth startup.
- Serviceability, low maintenance costs.
Silent operation
- Larger dimension impellers reduced speed causing less noise.
- The lower ambient temperature, the lower fan air ow, then reduce noise.
- Intelligent control logic balance the performance and working fan
- numbers to control the noise and power consumption.
- Super low noise model is optional.
Operating cost savings
- The COP was optimized for 50% ~ 75% part load conditions.
- Larger T of cooler reduces HVAC system running cost.
Design exibility
- Six basic capacity modules, wide array of module combination.
- Standard module for exible stock and fast delivery.
- Field-coupled to meet large project tonnage requirements.
- Low initial investment and maintenance cost.
Easy and fast installation
- Compact size and module design save the transportation, lifting and installation cost.
- The unit can be placed in service after being connected with power supply and water supply during eld installation.

Specification

LSBLGWXXX/C 380 500 600 720
Cooling capacity kW 376 496 594 720
Power input kW 124 159 187 234
COP kW/kW 3.03 3.12 3.17 3.07
IPLV kW/kW 3.93 4.02 3.94 3.87
Semi-hermetic screw compressor  
Circuit A Quantity 1 1 1 1
Circuit B Quantity -- -- -- --
Oil recharge Type BSE170 BSE170 BSE170 BSE170
Circuit A L 30 30 30 32
Circuit B L -- -- -- --
Refrigerant Type R134a R134a R134a R134a
Circuit A kg 76 90 105 140
Circuit B kg -- -- -- --
Control Type   EXV EXV EXV EXV
Evaporator Type Shell and tube heat exchanger(DX)
Water content L 222 308 340 520
Water flow m³/h 65.4 86 103.2 123.8
Pressure drop kPa 39 54 56 58
Max. woking pressure(water side) MPa 1 1 1 1
Pipe connection type Victaulic coupling
Water inlet/outlet pipe dim DN125 DN125 DN125 DN150
Condenser Type Fin-coil Fin-coil Fin-coil Fin-coil
Fan Quantity 6 8 10 10
Total air flow m³/h 23000x6 23000x8 23000x10 23000x10
Fan speed rpm 940 940 940 940
Unit size(LxWxH) mm 3810x2280x2370 4865x2280x2370 5800x2280x2370 5800x2280x2370
Shipping weight kg 3320 4330 5000 5500
Running weight kg 3540 4640 5340 6020

 

LSBLGWXXX/C 900 1000 1200 1420
Cooling capacity kW 902 996 1203 1419
Power input kW 285 318 381 466
COP kW/kW 3.16 3.13 3.15 3.04
IPLV kW/kW 3.94 4.01 4.10 3.80
Semi-hermetic screw compressor  
Circuit A Quantity 1 1 1 1
Circuit B Quantity 1 1 1 1
Oil recharge Type BSE170 BSE170 BSE170 BSE170
Circuit A L 30 30 30 32
Circuit B L 30 30 30 32
Refrigerant Type R134a R134a R134a R134a
Circuit A kg 76 90 105 140
Circuit B kg 90 90 105 140
Control Type   EXV EXV EXV EXV
Evaporator Type Shell and tube heat exchanger(DX)
Water content L 620 600 770 910
Water flow m³/h 154.8 172 206.4 244.2
Pressure drop kPa 74 75 71 69
Max. woking pressure(water side) MPa 1 1 1 1
Pipe connection type Victaulic coupling
Water inlet/outlet pipe dim DN150 DN150 DN200 DN200
Condenser Type Fin-coil Fin-coil Fin-coil Fin-coil
Fan Quantity 16 16 20 14
Total air flow m³/h 23000x16 23000x16 23000x20 23000x14
Fan speed rpm 940 940 940 940
Unit size(LxWxH) mm 9640x2280x2370 9640x2280x2370 11700x2280x2370 8800x2280x2370
Shipping weight kg 8900 9100 11100 7750
Running weight kg 9500 9870 12010 8370

 

Note:

1. Nominal cooling capacities are based on the following conditions:

   Chilled water inlet/outlet temp: 12°C/7°C; Outdoor temp (DB/WB):35°C/24°C,

   Evaporator fouling factor=0.018 m2.°C/kW.

2. The applicable ambient temperature range of R134a air-cooled screw units is 15°C ~ 43°C.

3. This specification might be change without prior notice.