803
Thermo G
8 Repair
8.5
Separating the fan housing from the
mixing chamber
Separating
1. Remove burner head (see 8.4).
2. Remove hood (see 8.3).
3. Disconnect ZF-module connector (8, Fig. 804) from
control device (5).
4. Remove 4 screws securing the fan housing (2, Fig.
803) to the mixing chamber and remove fan housing
(2) carefully together with the with the control device,
the fan motor and the fan wheel. During this, the ZF
module plug (8, Fig. 804) must be stuck through the
hole in the housing.
Assembling
1. Remove any residuals of the mixing chamber seal (5,
Fig. 803) from fan housing and/or from the mixing
chamber.
2. Bring the the fan housing (2) in assembly position with
the mixing chamber (6). During this, ensure the new
mixing chamber gasket ring (5) and the ZF module
grommet are in the correct position.
ATTENTION:
Before screwing on the fan housing, ensure that
the wires of the ZF module and the rubber
grommet have the proper position.
3. Attach fan housing (2) to the mixing chamber (6) using
4 screws.
4. Plug the ZF module plug into the control device.
5. Install hood (see 8.3).
6. Install burner head (siee 8.4).
Fig. 803 Separating the fan housing from the mixing chamber
1
2
3
4
5
1 Hood
2 Fan housing with combustion air motor
3 Fan wheel
4 Circlip
5 Gasket ring
6
