Adjusting The Burner - Viessmann Vitodens 100-W type WB1B Instruciones De Montaje

Replacing the gas valve
■ Undo three screws D and
remove Venturi nozzle C from
gas valve B.
■ Remove gas restrictor E from
old gas valve B and insert with
new gasket F into new gas
valve B.
■ Fit Venturi nozzle C to new gas
valve B.
Torque for fixing screws: 3 Nm.

Adjusting the burner

A
(cont.)
3. Fit new gas valve B with Venturi
nozzle C and new gaskets G and
H.
Torque for fixing screws: 3 Nm.
4. Install the burner.
Torque for union nut: 22 Nm.
Note
Insert new gaskets on all gas con-
nections.
01. Connect a flue gas analyser at flue
gas port A on the boiler flue con-
nection.
02. Start the boiler and check for
leaks.
Installation and service
instructions
Danger
Escaping gas leads to a risk
of explosion.
Check gas equipment for
leaks.
GB
11