What factors Affect the COP of an Air Source Heat Pump?

The COP of an air source heat pump system is never fixed and varies according to a variety of technical and environmental conditions:

1. Ambient temperature

Warm air provides more available heat, which increases the COP of the air source heat pump.

For example, at A12/W24, the COP reaches 9.59, while it drops to 1.89 at A-10/W55.

2. Water temperature setting

The higher the outlet temperature of the air source heat pump, the more energy is required and the lower the efficiency.

3. Part load operation

Most heater units perform better at part load. At A7/W27, the COP of the BLN-012TC1 can reach 7.10.

4. Air source heat pump core component configuration

1) Compressor

inverter rotary compressor (model: WHP13300PSDPC8FQ), stable and efficient performance

2) Expansion valve

Electronic type (model: CAM-BD24FKS-12), ensuring precise refrigerant flow control

3) Refrigerant

R290, a natural refrigerant with a GWP of only 3, combines environmental protection and thermal performance

4) Evaporator

Copper and aluminum fin structure, heat exchange area 80m²

5) Condenser

Plate heat exchanger (model: C39L-EZ-54), compact structure, high heat transfer efficiency

5. Defrost cycle

In cold climates, air source heat pump defrosting affects actual efficiency. BLN-012TC1 has a reliable automatic defrost function.