WA-ASD Series Double Head Air Cooled Screw Chiller Parameters (620KW~860KW)

WA-ASD Series Double Head Air Cooled Screw Chiller Parameters (620KW~860KW)
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-ASD Series Double Head Air Cooled Screw Chiller Parameters (620KW~860KW)

Items

WA-WSD620

WA-WSD680

WA-WSD810

WA-WSD860

Rated cooling capacity

533200 Kcal/h

584800Kcal/h

696600 Kcal/h

739600 Kcal/h

620KW

680KW

810KW

860KW

Input power

225.6KW

247.6KW

290KW

310.4KW

Max operating current

436A

478A

560A

600A

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

77x2 Kg

84x2 Kg

98x2 Kg

112x2 Kg

Control

External balance temperature thermal expansion valve

Compressor

Type

Semi-hermetic screw

Power

104x2 KW

115x2 KW

134x2 KW

142x2 KW

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

106.6 m3/h

117 m3/h

139.3 m3/h

147.9 m3/h

Water pressure drop

43Kpa

43Kpa

41Kpa

43Kpa

Inlet/outlet pipe diameter

8” inch

8” inch

8” inch

10” inch

Condenser

Type

Efficient air-cooled aluminum thread brass sleeve

Fan

Type

Low wind noise external rotor fan or aluminum axial fan

Power

1.1x16 Kw

1.1x16 Kw

1.1x20 Kw

1.1x24 Kw

Airflow

225000 m3/h

242000 m3/h

285000 m3/h

325000 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

7800mm

8000mm

9800mm

11600mm

Width

2200mm

2200mm

2200mm

2200mm

Height

2250mm

2300mm

2350mm

2350mm

Machine weight

4650KG

4930KG

5450KG

5850KG

Operating weight

4920KG

5360KG

5830KG

6530KG


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-ASD Series Double Head Air Cooled Screw Chiller Parameters (620KW~860KW)
更新时间:Jul 25, 2026
WA-ASD Series Double Head Air Cooled Screw Chiller Parameters (620KW~860KW)

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-ASD Series Double Head Air Cooled Screw Chiller Parameters (620KW~860KW)

Items

WA-WSD620

WA-WSD680

WA-WSD810

WA-WSD860

Rated cooling capacity

533200 Kcal/h

584800Kcal/h

696600 Kcal/h

739600 Kcal/h

620KW

680KW

810KW

860KW

Input power

225.6KW

247.6KW

290KW

310.4KW

Max operating current

436A

478A

560A

600A

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

77x2 Kg

84x2 Kg

98x2 Kg

112x2 Kg

Control

External balance temperature thermal expansion valve

Compressor

Type

Semi-hermetic screw

Power

104x2 KW

115x2 KW

134x2 KW

142x2 KW

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

106.6 m3/h

117 m3/h

139.3 m3/h

147.9 m3/h

Water pressure drop

43Kpa

43Kpa

41Kpa

43Kpa

Inlet/outlet pipe diameter

8” inch

8” inch

8” inch

10” inch

Condenser

Type

Efficient air-cooled aluminum thread brass sleeve

Fan

Type

Low wind noise external rotor fan or aluminum axial fan

Power

1.1x16 Kw

1.1x16 Kw

1.1x20 Kw

1.1x24 Kw

Airflow

225000 m3/h

242000 m3/h

285000 m3/h

325000 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

7800mm

8000mm

9800mm

11600mm

Width

2200mm

2200mm

2200mm

2200mm

Height

2250mm

2300mm

2350mm

2350mm

Machine weight

4650KG

4930KG

5450KG

5850KG

Operating weight

4920KG

5360KG

5830KG

6530KG


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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