... Heat Pum -CE Certificate -High Efficiency&Muti-fuction LTWH Series High Quality Ground Source Heat Pump for Houses and Commerical UseHeat Pump ... /outlet connectors, water discharge connectors, air vent valve, mod.4.5รท30 the user side is complete also with ... .54.04.54.86.1Control SystemDedicated heat pump controller,PID regulatorSecurityOverload, high voltage, wrong Phase, water, oil, antifreeze switch ...