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air-conditioning unit

Direct expansion air conditioning unit

Product features

Compact structure
The unit has a compact structure and comes with a cold and heat source. It is an air-cooled direct evaporative expansion air conditioning equipment. The entire air conditioning system is composed of only outdoor main units and indoor units, without the need for cooling water and chilled water systems. It is easy to install and use, saves user investment, and is especially suitable for water scarce areas.

rational design 
The indoor air conditioning system has no moving machinery or water pipes, avoiding noise and water leakage troubles.

Easy to install
The unit is designed for outdoor installation on the roof or in an open space, with properties such as sun protection, rust prevention, and rain protection, while also saving costs on air conditioning rooms and civil engineering.

High heat exchange efficiency
The refrigeration system of the unit is efficient and reliable, and can meet various types of air conditioning requirements. The evaporator and condenser both use finned heat exchangers, which have high heat transfer efficiency.

High degree of automation
The unit comes with full computer control, with a high degree of automation. Only a small number of control lines and main power lines need to be connected on site.

A direct expansion air conditioning unit is a refrigerant that directly exchanges heat with the air to be treated, without undergoing secondary heat exchange, i.e. refrigerant air.

Place of use
  Widely applicable for air conditioning engineering in newly built and renovated industrial and civil buildings, such as textile and clothing manufacturing, mechanical manufacturing, metallurgy and chemical engineering, electronic power, medical and pharmaceutical, broadcasting halls, shopping malls, entertainment centers, cinemas, sports venues, and other air conditioning places.

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Parameter table for suspended ceiling direct expansion unit series (return air)
吊顶式直膨机组系列参数表(回风)

Note:

1. The customized cooling capacity is measured under the conditions of indoor dry and wet bulb temperature of 27/19 ℃ and outdoor dry and wet bulb temperature of 35/28 ℃ under nominal air volume;

2. The customized heat is measured under the conditions of indoor dry and wet bulb temperature of 20/15 ℃ and outdoor dry and wet bulb temperature of 7/6 ℃ under nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: cooling -5~50 ℃, heating -20~25 ℃;

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.


Parameter table for suspended ceiling direct expansion unit series (fresh air)
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Note:

1. The customized cooling capacity is measured under outdoor wet and dry bulb conditions of 35/28C at nominal air volume;

2. The customized heat is measured under outdoor dry and wet bulb conditions of 7/6 ℃ at nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: cooling 15-50 ℃, heating -5-25 ℃, heating -15-25 ℃ (distribution preheating);

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.


Parameter Table for Vertical Cabinet Direct Expansion Unit Series (Return Air)
立柜式直膨机组系列参数表(回风)

Note:

1. The customized cooling capacity is measured under the conditions of indoor dry and wet bulb temperature of 27/19 ℃ and outdoor dry and wet bulb temperature of 35/28 ℃ under nominal air volume;

2. The customized heat is measured under the conditions of indoor dry and wet bulb temperature of 20/15 ℃ and outdoor dry and wet bulb temperature of 7/6 ℃ under nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: cooling -5~50 ℃, heating -20~25 ℃;

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.


Parameter Table for Vertical Cabinet Direct Expansion Unit Series (Fresh Air)
立柜式直膨机组系列参数表(全新风)

note:

1. The customized cooling capacity is measured under outdoor dry and wet bulb conditions of 35/28 ℃ at nominal air volume;

2. The customized heat is measured under outdoor dry and wet bulb conditions of 7/6 ℃ at nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: refrigeration 15~50C, heating -5~25 ℃, heating -15~25 ℃ (distribution preheating);

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.


Horizontal direct expansion unit series parameter table (return air)

卧式直膨机组系列参数表(回风)

Note:

1. The customized cooling capacity is measured under the conditions of indoor dry and wet bulb temperature of 27/19C and outdoor dry and wet bulb temperature of 35/28 ℃ under nominal air volume;

2. The customized heat is measured under the conditions of indoor dry and wet bulb temperature of 20/15 ℃ and outdoor dry and wet bulb temperature of 7/6 ℃ under nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: cooling -5~50 ℃, heating -20~25 ℃;

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.


Horizontal direct expansion unit series parameter table (fresh air)
卧式直膨机组系列参数表(全新风)

Note:

1. The customized cooling capacity is measured under outdoor dry and wet bulb conditions of 35/28 ℃ at nominal air volume;

2. The customized heat is measured under outdoor dry and wet bulb conditions of 7/6 ℃ at nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: cooling 15-50 ℃, heating -5-25 ℃, heating -15-25 ℃ (distribution preheating);

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.


Horizontal direct expansion unit constant temperature and humidity series parameter table (return air)卧式直膨机组恒温恒湿系列参数表(回风)

note:

1. The customized cooling capacity is measured under the conditions of indoor dry and wet bulb temperature of 27/19 ℃ and outdoor dry and wet bulb temperature of 35/28 ℃ under nominal air volume;

2. The customized heat is measured under the conditions of indoor dry and wet bulb temperature of 20/15 ℃ and outdoor dry and wet bulb temperature of 7/6 ℃ under nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: cooling -5~50 ° C, heating -20~25 ° C;

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.

Horizontal direct expansion unit constant temperature and humidity series parameter table (fresh air)
卧式直膨机组恒温恒湿系列参数表(全新风)

Note:

1. The customized cooling capacity is measured under outdoor wet and dry bulb conditions of 35/28C at nominal air volume;

2. The customized heat is measured under the outdoor dry and wet bulb conditions of 7/6C at the nominal air volume;

3. The customized cooling capacity does not take into account the heat loss of the fan motor, and the external static pressure can be determined according to customer requirements;

4. The external dimensions of the outdoor unit in the parameter table are the external dimensions of a single unit;

5. Unit performance testing piping conditions: equivalent refrigerant pipe length of 7.5m (horizontal);

6. The ambient temperature range for outdoor unit operation: cooling 15-50 ℃, heating -5-25 ℃, heating -15-25 ℃ (distribution preheating);

7. The external units shown in the parameter table are equipped with refrigerants at the factory;

8. Technical parameters may be changed due to product improvements without prior notice. Please refer to the unit nameplate for accuracy.


Correction coefficient table for refrigeration/heating capacity (direct expansion air conditioning unit)
制冷/制热能力修正系数表(直膨式空调机组)



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