Zehnder Rittling ComfoAir 350 Basic Series, Руководство по установке

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19 - EN
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.
E4
ComfoAir has been
switched off by
external contact
Cause depends on what
equipment is interfaced
with the ComfoAir.
Check the relevant device
Activate the self-test
(P76 on 1)
Risk of electrocution.
A1 / A2 / A3 / A4
NTC sensor
T1 / T2 / T3 / T4
is defective
Remove the handles
from the ComfoAir.
Remove the filters from
the ComfoAir.
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.
Remove the cover
panel.
Are the
connections
at the
ComfoAir
correct?
Reconnect the NTC
sensor.
Reconnect the
power to
the ComfoAir.
Yes
No
Yes
No
Is the
resistance of
the NTC sensor
correct?
Replace the
NTC sensor.
Replace the
control circuit
board
.
Set P51 on "0" and
P57 to the correct value.
(see rating plate)
A7
Malfunction
Reset the malfunction
(P74 on 1)
Set P51 on "0"
A6
Malfunction
Yes
No
Was the
temperature
< -27
ºC or
> 127ºC?
Reset the unit
(P74 on 1)
Disconnect the
power from
the ComfoAir.
Disconnect the
power from
the ComfoAir.
Disconnect the
power from
the ComfoAir.
Release the front panel
by unscrewing the
screws.
Reset the malfunction
(P74 on 1)
A1 / A2 / A3 / A4
NTC sensor
T1 / T2 / T3 / T4
is defective
Remove the handles
from the ComfoAir.
Remove the filters from
the ComfoAir.
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.
Remove the cover
panel.
Are the
connections
at the
ComfoAir
correct?
Reconnect the NTC
sensor.
Reconnect the
power to
the ComfoAir.
Yes
No
Yes
No
Is the
resistance of
the NTC sensor
correct?
Replace the
NTC sensor.
Replace the
control circuit
board
.
Set P51 on "0" and
P57 to the correct value.
(see rating plate)
A7
Malfunction
Reset the malfunction
(P74 on 1)
Set P51 on "0"
A6
Malfunction
Yes
No
Was the
temperature
< -27
ºC or
> 127ºC?
Reset the unit
(P74 on 1)
Disconnect the
power from
the ComfoAir.
Disconnect the
power from
the ComfoAir.
Disconnect the
power from
the ComfoAir.
Release the front panel
by unscrewing the
screws.
Reset the malfunction
(P74 on 1)