... source Heat Pump System1. Heating, cooling and DHW function, adaptable for all types of fan coils and terminals, ideal replacement for water ... water 35ºC;4. Use world-known brand components, like Japanese famous brand compressor, Emerson ALCO expansion valve, Siemens electric, etc., high quality ... as anti-frost protection, high/ low pressure protection, water flow protection, high-temp protection, etc., ...