The difference of water-cooled screw chillers and air-cooled screw chillers:
Industrial water cooled and cooling screw chiller don't have fans on top, must work with cooling towers which can cool the condenser of the chiller.
Industrial air cooling screw compressor chillers are equipped with fans on top, have threee kind compressors brand (Hanbell, Bitzer, Refcomp) for you to choose.
Specifications for Industrial air cooled and cooling screw chiller:
|
Model |
Unit |
AT-50AS |
AT-60AS |
AT-80AS |
|
Refrigerating Capacity |
KW |
165 |
176 |
237 |
|
Kcal/h |
1342072 |
151360 |
203992 |
|
|
Input Power |
KW |
37 |
45 |
30X2 |
|
Control Type |
Expansion Valve |
|||
|
Refrigerant |
R22(R407C) |
|||
|
Compressor |
Type |
Semi-hermetic Screw |
||
|
Quantity |
1/2/3/4 |
|||
|
Startup Mode |
Y-△start |
|||
|
Capacity Control (%) |
0-25-50-75-100 |
|||
|
Power |
|
3PH-380V/50HZ(200V/220V/415V 50HZ/60HZ) |
||
|
Evaporator |
Type |
Shell and Tube Type |
||
|
Cooling Water Flow(m3/h) |
23 |
26 |
26 |
|
|
Water Pipe Diameter(inch) |
3'' |
3'' |
4'' |
|
|
Condenser |
Type |
air cooled high-efficient inner threaded copper-tubing aluminum fin type |
||
| Fan power | 4.8 |
9 |
4.8 |
|
| Cooling air flow | 51000 |
63000 |
80000 | |
|
Safety Protection |
High and Low Pressure Protection, Overload Protection,Overtemperature Protection, Phase Sequence Protection,etc. |
|||
|
Dinmensions (L*W*H) |
mm |
2400*2250*1880 |
2480*2300*1980 |
2600*2300*1980 |
Inside pictures of Industrial air cooled and cooling screw chiller
01 Semi-hermetic Compressors
▪ Adopted world famous branded semi-hermetic compressors for long term reliable and efficient running; ▪ Compressor runs with no stage limits to realize stageless continuous adjustment of cooling capacity in between 25%-100% power loaded and maintaining stable outputs; ▪ Option: HANBELL, BITZER
bitzer compressor Hanbellcompressor
02 AIr cooled high-efficient inner threaded copper-tubing hydrophilic aluminum foil fin type Evaporator
The condenser type is hydrophilic aluminum foil fin type. The aluminum foil is hydrophilic treated. Through special processing, a hydrophilic layer is coated on the surface. The condensed water will spread quickly on the hydrophilic aluminum foil and will not condense into water droplets. Increase the heat exchange area, speed up the cooling and heating speed, and effectively avoid the noise caused by condensed water blocking the air flow.
The raw material of the heat exchanger is hydrophilic aluminum foil, which can increase the refrigeration efficiency by 5%. It is also anti-corrosion and anti-mold, has no odor, and will not cause the accumulation of water droplets to block the heat exchange.
shell and tube type evaporator adopts inner treaded copper design, with larger heat exchanging area for higher efficiency and maximizing system performance.
05
Adopt welded angle filter, the filter element is imported molecular sieve. Can filter water, acid and other impurities, and easy to replace. 
06 Thermal expansion valve
The imported thermal expansion valve is used to throttle and cool the high-pressure super cooled liquid into a low-temperature and low-pressure liquid, and automatically adjust the flow rate of the refrigerant into the evaporator according to the evaporation temperature, and maintain a certain pressure to ensure evaporation in the evaporator. rate.
07 Electrical control system
The control panel is an LCD touch screen, highly automated, easy to operate, intuitive interface, which can make the unit to continuously adjust the performance energy between 25% and 100% (or stepless energy adjustment) to ensure the complete performance of the compressor Play and help users save operating costs to the greatest extent. The control panel interface has two languages, Chinese and English.
08 Safety protection device：
The system is equipped with motor overload, short circuit protection, overheating, high pressure, low pressure, compressor delay start protection, water flow protection and other functions, the unit runs safely and reliably.
Product Features
Efficient and Energy-Saving: Some units feature a free cooling function, utilizing outdoor air for free cooling when ambient temperatures are low, reducing compressor operating time. The high efficiency of screw compressors also helps reduce energy consumption.
Large Cooling Capacity: Available in a wide range of cooling capacities, from tens to thousands of RT, these units meet diverse operating requirements and are widely used in large central air conditioning systems, industrial cooling, and other fields.
Stable Operation: Screw compressors offer a compact design and smooth operation, equipped with multiple safety features, including high and low pressure switches, phase loss, reverse phase, and overload protection, ensuring safe and reliable operation.
Easy Maintenance: The unit's structural design facilitates routine maintenance and overhaul, reducing maintenance costs.
Applications
Central Air Conditioning Systems: Commonly used in large office buildings, shopping malls, hotels, and other venues, providing a comfortable indoor cooling environment.
Refrigeration Industry: Used in the plastics, rubber, and chemical fiber industries to cool materials and ensure production stability and product quality. Electronics Industry: Provides precise temperature control during the manufacturing of semiconductors, LEDs, LCDs, and other electronics, protecting sensitive equipment from high temperatures.
Food and Beverage Industry: Used for cooling and refrigeration during food processing and beverage production, ensuring food safety and freshness.
Medical Device Industry: Used to cool medical equipment during manufacturing, ensuring its normal operation and service life.
