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appliance shutdown
„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 2 K 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
I1
Bypass damper status
I2
Extract air temperature
I3
Relative humidity of extract air
I4
Filter service life
I5
Appliance software version
I6
Unit software patch
I7
Terminal device serial number
I8
Programming unit software version
I9
Outdoor air temperature
I10
Supply air temperature
I11
Exhaust air temperature
I12
Relative humidity of outdoor air
I13
Extract air dew point
I14
Outdoor air dew point
I15
Supply air fan control level
I16
Calculated supply air flow rate
I17
Exhaust air fan control level
I18
Calculated exhaust air flow rate
I19
Percentage output of internal preheating
I20
Ventilation unit operating time
I21
Fan operating time
I22
Extract air pressure differential
I23
Fan speed, supply air fan
I24
Fan speed, exhaust air fan
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.
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Unit
°C
%
h
°C
°C
°C
%
°C
°C
%
m³/h
%
m³/h
%
d
d
Pa
rpm
rpm
13. Appliance shutdown
We recommend running the appliance in fan stage 1, 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 3 years.
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.
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.
VRC-W 400 (E) |
19
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