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Outdoor air /exhaust air kit
OEK 20-160 is an accessory that enables F730 to operate with both exhaust air and outdoor air. This gives higher heat output than operation using just exhaust air. There is the option of retrieving pre-heated outdoor air from an attic or conservatory, for example.
At outdoor temperatures below "min. outdoor air temperature", the outdoor air flow is closed by an outdoor air damper and the heat pump operates with just the exhaust air.
To keep the indoor temperature down at outdoor air temperatures above "high outdoor temperature" the outdoor air damper opens and the heat pump operates with outdoor air, as well as reduced exhaust air.
Item no: 067535