... filter, thermostatic expansion valve (capillary for mod. 4.5-14), gas-liquid separator, high pressure switch and low pressure switch.The ... outspace such as roof, floor and porch, left off the boiler room and the special room,Applicable to hotels, villas, hospitals ... , cinemas, stadiums, recreations, office blocks, factories and so on. water source heat pump water heater (muti-function type)