Independent Heating/Ventilation

Operation
If an independent heating system is installed, the relay box which switches the independent heating or independent ventilation program in the IHKR control unit, can be activated via the on-board computer or multifunction clock. At a preselected time, the on-board computer (or multifunction clock) switches on the independent heating at an outside temperature < 16°C (60°F) and the independent ventilation at an outside temperature > 16°C (60°F).