... heater heat pump heating: 4.5kW, 8kW, 13.5kW cooling: 3.5kW, 7.2kW, 12kW CE,CCC,ISO9001,ISO14001 Air source ... energy is released when vapor refrigerant is condensed to liquid phase, while at the evaporator, heat energy is extracted (in other ... compressor. Generally, heat pump can achieve a COP(heating) of 3 and the corresponding COP(cooling) would be around 2, Hence ...