... ,cooling,DHW *COP exceeds 4.0 *Reliable system,powerful control *CE Residential Air-source Heat Pump System1. Heating ... ;4. Use world-known brand components, like Japanese famous brand compressor, Emerson ALCO expansion valve, Siemens electric, etc., high quality ... high-temp protection, etc., and automatic defrost function, assuring the system to run safely and efficiently even in hard conditions7. SWEP ...