Cell bypass test
To test the operation of the heat recovery cell bypass flap of the ventilation unit:
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Select Service menu.
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Activate the test mode by pressing the On/Off button in the right top corner of the Service menu display until the value is On.
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To test the operation of the heaters in the Bypass flap position area:
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Normal operation – The damper is in the winter position (closed) and the air flow passes through the heat recovery cell.
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Bypass – The damper is in the summer position (open) and the air flow is directed past the heat recovery cell.
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Open the unit to ensure that the bypass flap moves into the right position.