22
| Duct system maintenance
6. Thread the new drive belt around both heat exchangers and the belt pulley.
7. Put the "empty" end of the drive belt on to the nipple
8. Press the ends completely together to secure a tight joint.
9. Rotate the exchanger by hand. Check that the belt pulley rotates.
10.Remount the heat exchanger package and secure it with the screws.
11.Reconnect the heat exchanger cables to the motor and sensor.
12.Close and fasten the side cover and connect the unit to mains.
13.Check that the alarm has ceased on the Control Display.
Note:
If the alarm remains, check the rotor sensor.
6.8
Overheat protection reset button
If the supply air temperature is low, it can indicate that the over heat protection is triggered. The overheat protection
can be reset by pressing the reset button (2).
Danger
Make sure that the Mains supply to the unit is disconnected before performing any maintenance or
electrical work!
Fig. 9 Overheat protection reset button
To access the reset button:
1. Stop the unit by disconnecting the mains.
2. Open the side cover, see chapter 6.2.
3. Take out the extract air filter (1)
4. Remove the rubber cap that covers the reset button
5. Use a screwdriver (3 mm), or similar, to push the reset button (2)
6. Insert the rubber cap
7. Insert the extract air filter
8. Close and fasten the side cover and connect the unit to mains.
7
Duct system maintenance
7.1
Cleaning extract louvres and supply air diffusers
The system supplies fresh air to your home and extracts the used indoor air via the duct system and diffusers/louvres.
Diffusers and louvres are mounted in ceilings/walls in bedrooms, living room, wet rooms, WC etc. Remove diffusers
and louvres and wash in hot soapy water as required (diffusers/louvres must not be exchanged). Cleaning of diffusers/
louvres can be done as necessary.
GB
211457 | B001