Water source heat pump,4.5-75kw,changed freely from many running mode:cooling,heating,cooling/heating+hot water, ... available,energy saving. FEATUREFunction:Freely being changed from 6 running mode as below, meet more requirements of clients.1, Cooling,2, heating ... water and power supply only.STRUCTUREPanels and frame are made from galvanized steel protected with polyester powder painting to ensure ...