Swegon bluMartin freeAir 100, Manual

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Service
[ S ] 49
Piep
4. Clean the wall box and the outside hood from the inside
with soapy water.
Provide for the free flow of condensate (if installed, round
brass porthole behind).
Before replacing the unit use the (included with the filter)
silicone lubricant and apply a thin film to the seal at the
leading edge of the wall box, so the device slides easily
into the wall box.
5. Support the appliance with your right hand in front and
bottom and slide it straight into the box. Slide by pressing
the front panel on the unit until it stops.
Note
The device will only be operational if seated completely
inside the wall box (if necessary beat with your hand on
the front panel).
6. To reset the filter hour counter shortly change into Service
mode. To do that turn first the device off (wait till all LEDs
are off).
Push and hold the -button and switch the device on
again.
Keep the -button pushed for about 5 seconds, until you
hear a short beep.
Switch the unit off.
Only when all LEDs are
out… switch on the device again.