... mod. 4.5-14), gas-liquid separator, high pressure switch and low pressure switch.The heat pump units are complete also with 4 ... also with expansion vessel, water pump and water flow switch.ELECTRIC PANELconsists of:Compressor contactor,Compressor protection breaker,User side ... which must be installed in factory,Source side water flow switch,Source side water pump,Anti-vibration rubber,Metallic filter ...