... Evaporator, Top Air blow type heat pump air to water heater specifications 1. Hitachi, Copeland scroll compressors, strong operation ... display9. Intelligent Defrosting System, enable unit to work reliably in chilling climates10. High/Low pressure protection11. Automatic unit on ... on testing conditions: outdoor DB 20oC, WB 15oC, Water In 15oC, Water Out 55oC.2 .Working Environment Temp.:from -10 to ...