... 2kw--752.4kw Air Source Heat pump with Screw CompressorsModel :LSQW(R)F 150Z÷180Z LSBLG(R)F 250Z÷760ZFunction:Cooling and heatingCooling ... , thermostatic expansion valve, high & low pressure switch. The heat pump unit is completed also with 4-way valve, liquid receiver ... :Without cooling water system such as cooling tower and cooling pump, easy to install and maintain. Applicable to hotels, villas, ...