INSTALLATION
Appliance shutdown
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ENGLISH
P33 : Temperature offset for condensate prevention
This parameter is used to vary the shutdown point for condensate
prevention. This allows the fans to be switched off 2K before the
dew point temperature is reached, for example.
P35 : Bypass function cooling/heating
f Set the operating mode for the bypass function.
Effect
1 Cooling/heating
2 Cooling
3 Heating
P70 : Delete fault list
To delete the fault list, set this parameter to 1. Press the "OK"
button to confirm. Afterwards, 0 is displayed again and the fault
list is deleted.
12.2 Actual values
Display Description Unit
I1 Bypass damper status
I2 Extract air temperature °C
I3 Relative humidity of extract air %
I4 Filter service life h
I5 Appliance software version
I6 Unit software patch
I7 Terminal device serial number
I8 Programming unit software version
I9 Outdoor air temperature °C
I10 Supply air temperature °C
I11 Exhaust air temperature °C
I12 Relative humidity of outdoor air %
I13 Extract air dew point °C
I14 Outdoor air dew point °C
I15 Supply air fan control level %
I16 Calculated supply air flow rate m³/h
I17 Exhaust air fan control level %
I18 Calculated exhaust air flow rate m³/h
I19 Percentage output of internal preheating %
I20 Ventilation unit operating time d
I21 Fan operating time d
I22 Extract air pressure differential Pa
I23 Fan speed, supply air fan rpm
I24 Fan speed, exhaust air fan rpm
I70-79 Fault
12.3 Code
Cod
Enter 1000 to enable actual values and parameters which are re-
served for qualified contractors. "A1" is shown on the display when
this is entered correctly.
13. Appliance shutdown
We recommend running the appliance in fan stage1, even during
prolonged absence.
!
Material losses
If you interrupt the power supply to the appliance, check
that humidity protection is ensured for the building.
If the appliance needs to be taken out of use for an extended peri-
od, disconnect it from the power supply by pulling the mains plug.
f Replace the filters.
14. Maintenance
WARNING Electrocution
Disconnect the appliance from the power supply before
carrying out work inside the appliance.
f Pull the mains plug out of the socket.
Maintenance by the qualified contractor includes cleaning the
cross-countercurrent heat exchanger and the fans. Subject to runt-
ime, this maintenance work should be carried out every 3years.
f Disconnect the power supply by pulling the power plug from
its socket.
f Remove the front panel (see chapter "Installation/ Removing
the front panel").
f Remove the filter drawer from the appliance.
D0000065159
f Undo the screws on the inner front panel.
f Remove the inner front panel from the appliance by tilting
the inner front panel forwards and then lifting it out of the
bottom slots.
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