... + Hot water;Cooling + Hot water.4.In summer,On the cooling+hot water model,unit will be cooling,or hot water,or ... two at the same time automatically.5.In winter,On the heating+hot water model,unit will be heating,or hot water ... . Low ambient temperature air to water EVI heat pump three in one unit(central air conditioner and sanitary hot water8kW 10kW 12kW