Changing The Gas Filter; Removing The Fan - Buderus Logano plus GB402 Installation And Maintenance Instructions Manual

9.8.2 Changing the gas filter

▶ Undo both screws [4] from filter cover [3] underneath the gas valve.
▶ Remove filter cassette [1] and insert a new one.
▶ Insert new gasket [2] at the filter cover and refit using both screws.
Fig. 58 Changing the gas filter
[1] Filter cassette
[2] Seal
[3] Filter cover
[4] Screw

9.8.3 Removing the fan

▶ Undo the electric plug-in connections at the fan.
▶ Pull out the burner ( Chapter 9.6.1, page 33).
▶ Remove the gas valve ( Chapter 9.8.1, page 36).
▶ Undo clip [3] at the ventilation air collector and pull off front semi-
shell [4] from its studs.
▶ Also remove impeller [2] and fan inlet nozzle [1] from the studs.
Fig. 59 Dissembling the components of the ventilation air collector
[1] Fan inlet nozzle
[2] Impeller
[3] Clamp
[4] Front semi-shell
Logano plus GB402 – 6 720 804 428 (2012/09)
▶ Remove rear semi-shell [1].
Fig. 60 Removing the rear semi-shell
[1] Semi-shell
▶ Remove mounting plate [1] from the fan.
▶ Undo both rear screws [3] (joint between carriage [2] and fan [5]
(do not remove).
▶ Support the fan and remove both front screws [4].
▶ Pull out the fan towards the front.
Fig. 61 Dissembling the components of the ventilation air collector
[1] Assembly plate
[2] Carriage
[3] Rear screw
[4] Front screw
[5] Fan
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