... Heat Pum -CE Certificate -High Efficiency&Muti-fuction LTWH Series High Quality Ground Source Heat Pump for Houses and Commerical UseHeat ... 2~ 1000m2 building. It can make free living hot water for demand as Villa, hotel, restaurant, factory, theater, stadium, ... charge valves, filter, thermostatic expansion valve, gas-liquid separator, high pressure switch and low pressure switch.The heat pump units ...