... , 3, hot water only,4, cooling+hot water(partial heat recovery),5, cooling+more hot water(total heat recovery) 6, Heating+hot water(partial heat recovery ... with built-in thermal overload cut-out and crankcase heater, mounted on rubber vibration dampers.Mod. 10 and 12 ... source,including soil,groundwater,surface water etc.).The ground surface is a enormouos solar energy collector,which collects 47% ...