WA-AS Series Single Head Air Cooled Screw Chiller Parameters (310KW~430KW)

WA-AS Series Single Head Air Cooled Screw Chiller Parameters (310KW~430KW)
This unit integrates high efficiency, stable operation, and intelligent control, offering the following core benefits:
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Product Advantages

This unit integrates high efficiency, stable operation, and intelligent control, offering the following core benefits:


1. Highly Efficient and Stable Compression Core
Equipped with a semi-hermetic twin-screw compressor, it delivers high operational efficiency, minimal vibration, and low noise levels, ensuring long-term, smooth, and reliable performance.

2. Durable and Reliable Mechanical Components
Key bearings are designed for a service life of at least 40,000 hours, providing a solid foundation for continuous and efficient operation.

3. Compact and Efficient Oil Separation System
Features a built-in high-efficiency oil separator with a compact design and exceptional separation performance, effectively ensuring oil return and system stability.

4. Precise and Flexible Capacity Control
Capable of multi-stage or stepless capacity regulation from 0% to 100%, it accurately matches cooling load demands, significantly reducing energy consumption.

5. Superior Heat Exchange Performance
Comes standard with a high-efficiency shell-and-tube evaporator (stainless steel plate heat exchanger optional). The enhanced internal finned tubes are optimally designed for excellent heat transfer.

6. Comprehensive Intelligent Control Functions
The control system integrates multiple programs for startup, capacity adjustment, shutdown, fault diagnosis and protection, operation statistics, and status display, offering a high level of automation and ease of management.

7. User-Friendly Human-Machine Interface
Fitted with an LCD touch-screen controller that displays real-time operating status and parameters, ensuring straightforward and convenient monitoring and operation.

8. Simplified Installation and Cost Savings
Utilizing air-cooled condensing, it eliminates the need for a cooling tower and associated water pumps and piping. This saves installation space, reduces initial investment, and simplifies maintenance.


WA-AS Series Single Head Air Cooled Screw Chiller Parameters (310KW~430KW)

Items

WA-AS310

WA-AS340

WA-AS405

WA-AS430

Rated cooling capacity

266600 Kcal/h

292400Kcal/h

348300 Kcal/h

369800 Kcal/h

310KW

340KW

405KW

430KW

Input power

112.8KW

123.8KW

145KW

155KW

Max operating current

218A

240A

280A

300A

Power

3PH 380V 50HZ (200V /220V/ 415V 50HZ/60HZ)

Refrigerant

Type

R22 /R134A/

R407C/R404A

R22 /R134A/

R407C/R404A

R22 /R134A/

R407C/R404A

R22 /R134A/

R407C/R404A

Charge amount

77Kg

84Kg

98Kg

112Kg

Control

External balance temperature thermal expansion valve

Compressor

Type

Semi-hermetic screw

Power

104KW

115KW

134KW

142KW

Start

Y-△

Y-△

Y-△

Y-△

Regulation range

0-25-50-75-100%

0-25-50-75-100%

0-25-50-75-100%

0-25-50-75-100%

Evaporator

Type

Dry-type shell and tube (stainless steel plate evaporator)

Chilled water flow

53.3m3/h

58.4 m3/h

70.0 m3/h

74.0 m3/h

Water pressure drop

43Kpa

43Kpa

41Kpa

43Kpa

Inlet/outlet pipe diameter

5” inch

5” inch

6” inch

6” inch

Condenser

Type

Efficient air-cooled aluminum thread brass sleeve

Fan

Type

Low wind noise external rotor fan or aluminum axial fan

Power

1.1x8 Kw

1.1x8 Kw

1.1x10 Kw

1.1x12 Kw

Airflow

110000 m3/h

116000 m3/h

145000 m3/h

165000 m3/h

Protection

Security protection

Compressor motor overloading protection, compressor bearing overload protection device, intelligent digital high and low pressure protection device, anti - freezing protection device, protection phase - lack digital protection, exhaust temperature protection, over - temperature protection device, safety valve, water flow switch

Dimension & weight

Length

4600mm

4500mm

4500mm

4900mm

Width

2020mm

2200mm

2200mm

2020mm

Height

2300mm

2300mm

2300mm

2300mm

Machine weight

2850KG

2950KG

3200KG

3550KG

Operating weight

3350KG

3560KG

3650KG

3950KG


Notes:

1.The rated cooling capacity is determined based on the following conditions: chilled water inlet temperature of 12°C and outlet temperature of 7°C; cooling air inlet temperature of 30°C and outlet temperature of 35°C.

2. Operating Range:

● Chilled Water Temperature Range: 5°C to 30°C.

● Chilled Water Temperature Difference (Inlet/Outlet): 3°C to 8°C.

● Optimal Ambient Air Temperature Range: 15°C to 30°C.

● Operation is recommended at ambient temperatures below 38°C. Cooling Air Temperature Difference (Inlet/Outlet): 8°C to 10°C.

3. Units can be customized and produced according to customer requirements.

4. All specifications and dimensions provided above are subject to change without prior notice.

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WA-AS Series Single Head Air Cooled Screw Chiller Parameters (310KW~430KW)
更新时间:Jul 25, 2026
WA-AS Series Single Head Air Cooled Screw Chiller Parameters (310KW~430KW)

Product Advantages

This unit integrates high efficiency, stable operation, and intelligent control, offering the following core benefits:


1. Highly Efficient and Stable Compression Core
Equipped with a semi-hermetic twin-screw compressor, it delivers high operational efficiency, minimal vibration, and low noise levels, ensuring long-term, smooth, and reliable performance.

2. Durable and Reliable Mechanical Components
Key bearings are designed for a service life of at least 40,000 hours, providing a solid foundation for continuous and efficient operation.

3. Compact and Efficient Oil Separation System
Features a built-in high-efficiency oil separator with a compact design and exceptional separation performance, effectively ensuring oil return and system stability.

4. Precise and Flexible Capacity Control
Capable of multi-stage or stepless capacity regulation from 0% to 100%, it accurately matches cooling load demands, significantly reducing energy consumption.

5. Superior Heat Exchange Performance
Comes standard with a high-efficiency shell-and-tube evaporator (stainless steel plate heat exchanger optional). The enhanced internal finned tubes are optimally designed for excellent heat transfer.

6. Comprehensive Intelligent Control Functions
The control system integrates multiple programs for startup, capacity adjustment, shutdown, fault diagnosis and protection, operation statistics, and status display, offering a high level of automation and ease of management.

7. User-Friendly Human-Machine Interface
Fitted with an LCD touch-screen controller that displays real-time operating status and parameters, ensuring straightforward and convenient monitoring and operation.

8. Simplified Installation and Cost Savings
Utilizing air-cooled condensing, it eliminates the need for a cooling tower and associated water pumps and piping. This saves installation space, reduces initial investment, and simplifies maintenance.


WA-AS Series Single Head Air Cooled Screw Chiller Parameters (310KW~430KW)

Items

WA-AS310

WA-AS340

WA-AS405

WA-AS430

Rated cooling capacity

266600 Kcal/h

292400Kcal/h

348300 Kcal/h

369800 Kcal/h

310KW

340KW

405KW

430KW

Input power

112.8KW

123.8KW

145KW

155KW

Max operating current

218A

240A

280A

300A

Power

3PH 380V 50HZ (200V /220V/ 415V 50HZ/60HZ)

Refrigerant

Type

R22 /R134A/

R407C/R404A

R22 /R134A/

R407C/R404A

R22 /R134A/

R407C/R404A

R22 /R134A/

R407C/R404A

Charge amount

77Kg

84Kg

98Kg

112Kg

Control

External balance temperature thermal expansion valve

Compressor

Type

Semi-hermetic screw

Power

104KW

115KW

134KW

142KW

Start

Y-△

Y-△

Y-△

Y-△

Regulation range

0-25-50-75-100%

0-25-50-75-100%

0-25-50-75-100%

0-25-50-75-100%

Evaporator

Type

Dry-type shell and tube (stainless steel plate evaporator)

Chilled water flow

53.3m3/h

58.4 m3/h

70.0 m3/h

74.0 m3/h

Water pressure drop

43Kpa

43Kpa

41Kpa

43Kpa

Inlet/outlet pipe diameter

5” inch

5” inch

6” inch

6” inch

Condenser

Type

Efficient air-cooled aluminum thread brass sleeve

Fan

Type

Low wind noise external rotor fan or aluminum axial fan

Power

1.1x8 Kw

1.1x8 Kw

1.1x10 Kw

1.1x12 Kw

Airflow

110000 m3/h

116000 m3/h

145000 m3/h

165000 m3/h

Protection

Security protection

Compressor motor overloading protection, compressor bearing overload protection device, intelligent digital high and low pressure protection device, anti - freezing protection device, protection phase - lack digital protection, exhaust temperature protection, over - temperature protection device, safety valve, water flow switch

Dimension & weight

Length

4600mm

4500mm

4500mm

4900mm

Width

2020mm

2200mm

2200mm

2020mm

Height

2300mm

2300mm

2300mm

2300mm

Machine weight

2850KG

2950KG

3200KG

3550KG

Operating weight

3350KG

3560KG

3650KG

3950KG


Notes:

1.The rated cooling capacity is determined based on the following conditions: chilled water inlet temperature of 12°C and outlet temperature of 7°C; cooling air inlet temperature of 30°C and outlet temperature of 35°C.

2. Operating Range:

● Chilled Water Temperature Range: 5°C to 30°C.

● Chilled Water Temperature Difference (Inlet/Outlet): 3°C to 8°C.

● Optimal Ambient Air Temperature Range: 15°C to 30°C.

● Operation is recommended at ambient temperatures below 38°C. Cooling Air Temperature Difference (Inlet/Outlet): 8°C to 10°C.

3. Units can be customized and produced according to customer requirements.

4. All specifications and dimensions provided above are subject to change without prior notice.

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