Viessmann GB-ND 055 E01 30/35 G25 Instrucciones De Montaje página 10

GB
Opening the Vitodens
Installation and service instruc-
tions
Vitodens 100-W
Replacing the gas solenoid valve
E A
C
1. Disconnect cable from gas solenoid
valve A.
2. Undo union nut B.
3. Undo 2 screws C and remove gas
solenoid valve A.
10
B
D
4. Insert new gasket D at new gas
solenoid valve A.
Operation with natural gas:
Insert gasket D without gas
restrictor.
Operation with LPG:
Insert gasket D with the integral
gas restrictor.