Viessmann 7827527 Notice De Montage page 9

Replacing the gas solenoid valve
B
H
C
G
E
01. Remove front panel and cover.
02. Disconnect cables from gas sole-
noid valve A and differential pres-
sure sensor B.
03. Remove differential pressure sen-
sor B and (if installed) differential
pressure sensor adaptor C from
gas solenoid valve A by pulling
them upwards.
F A D
04. Undo the two screws from inlet-
05. Undo the three screws from gas
06. Remove gas solenoid valve A by
(cont.)
side flange D.
solenoid valve A.
pulling it forwards.
GB
9