... ,R410A available,energy saving. FEATUREFunction:Freely being changed from 6 running mode as below, meet more requirements of clients. ... , thermostatic expansion valve (capillary for mod. 4.5-14), gas-liquid separator, high pressure switch and low pressure switch.The ... hospitals, cinemas, stadiums, recreations, office blocks, factories and so on. water source heat pump water heater (muti-function type)