Function

Ventilation, which means totally hygienic inside air, is a basic requirement for living in a healthy house. Controlled domestic ventilation with heat recovery reuses the energy from the exhaust air. Not only that, the additional heat generated internally from lighting, people and domestic appliances is also utilised through heat recovery.

Fresh outside air is supplied to the house through cleanable outside vent holes. The air overflow occurs under the door or through the overflow vent holes. The warm inside air (exhaust air) is drawn into the ventilation system. Warm exhaust air is supplied to the heat pump for heat recovery. When the inside air has passed through the heat pump the discharge air is released into the open air. Before this, the heat pump has extracted sufficient energy from the exhaust air to produce hot water.

Function of the cooling circuit

The refrigerant has now completed its circuit and is once more fed into the evaporator where it is evaporated yet again due to the effect of the energy that the collector has carried from the energy source.