... ,household,villa. Hemetic anti-corrosion housing Water-to-air heat pump1. Heating capacity 12.50kw~32 ... The unit runs with better efficiency,using water as the cooling and heating medium.4. ... space for facilities.6. Longer life than air-cooled refrigeration unit.7. Tranformer 50VA,printed ... switch,starting relay, high and low voltage protection9. Fiber filter net, accoustic lining water-to-air heat pump