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EN - 24
E1 /
E2
Supply fan / Exhaust
fan not rotating
Remove the handles
from the ComfoAir.
Remove the filters
from the ComfoAir.
Release the front
panel by unscrewing
the screws.
Slide the front panel
upwards and remove
the front panel from
the ComfoAir.
Release the cover panel
by unscrewing the
screws.
Remove the small
plastic panel in front of
the
control circuit
board
by unscrewing
the two screws.
Is
there 230 VAC
power present
on the fan ?
Yes
No
Disconnect the power
from the ComfoAir.
Replace the control
circuit board.
Is a
control signal
(1,5 - 10 VDC)
present on
the fan?
Yes
No
Disconnect the
power from
the ComfoAir.
Replace the
control circuit
board
Replace the fan.
(See
the
maintenance
chapter of the fans
)
Remove the cover
panel.
Disconnect the power
from the ComfoAir.
Activate the self-test
(P76 on 1)
Risk of electrocution
.
Содержание ComfoAir 550
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