To test the operation of the heat recovery cell bypass flap:
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Select Settings:
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Use the arrow buttons to select Service menu:
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Select OK:
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Use the arrow buttons to select Cell bypass test:
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Select OK:
The Bypass flap position display opens:
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Use the Select button to select the damper position. The options are:
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(…) — The damper moves automatically.
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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 damper moves into the right position.
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Select Back:
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The cell bypass test is now complete.