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8 maINtENaNcE aND sErvIcE
Make sure that specific warnings and cautions in Chapter 2 "Precautions" are carefully read, understood and applied!
Maintenance can be carried out by the user.
Service must be performed only by an authorized installer and in accordance with local rules and regulations .
Questions regarding installation, use, maintenance and service of the unit should be answered by your installer or place of purchase!
8.1 Components list
1
7
Fig. 8.a Internal components
8.2 Description of Components
Fans
The fans have external rotor motors of EC type which can be steplessly controlled individually between 10–100%. The motor bearings are life time lubricated
and maintenance free.
Filters
The filters are of filter quality G4 for both the supply air and extract air filter. The filters need to be cleaned regularly (and replaced when polluted) during
maintenance. New sets of filters can be acquired from your installer or wholesaler.
Heat exchanger
The unit is equipped with a highly efficient, counter-flow plate heat exchanger. Supply air temperature is therefore normally maintained without adding
additional heat. The heat exchanger is removable for cleaning and maintenance during service.
Condensation drainage
Depending on the relative humidity in the extract air, condensation may occur on the cold surfaces of the heat exchanger, on one side in winter time, on the
other side in summer time (fig.6.b).
The condensate water is led out through drain plugs.
Thermostat
If external temperature is too low, the heat exchanger might get frosted, and therefore damaged. To avoid this, dedicated thermostat switches off the supply
fan if and when needed.
10
5
3
4
WARNING
8
9
4
2
6
10
FILTER G4, ExTRACT AIR
1
2
FILTER G4, INTAKE AIR
3
HEAT ExCHANGER
4
CONDENSATION DRAINS
5
THERMISTOR
6
FAN, INTAKE AIR
7
FAN, ExHAUST AIR
8
CONDENSATION TRAY
9
TERMINAL BOx
10
FILTER F7 (ON REQUEST)