Removing The Burner; Check Burner Gasket And Cylinder Assembly For Damage - Viessmann Vitodens 100-W B1HA 26Vitodens 100-W B1HA 35Vitodens 100-W B1KA 35 Installation And Service Instructions Manual

Vitodens 100-W, B1HA series & B1KA Combi Installation/Service

Removing the Burner

Start-up and Maintenance

Check Burner Gasket and Cylinder Assembly for Damage

Start-up, Inspection and Maintenance
1. Switch the burner OFF (shut off main service switch).
2. Shut off the gas supply.
3. Pull power cables from fan motor A, gas valve B
and electrode block C.
4. Pull the Venturi extension D from the fan.
CAUTION
To avoid damage to the burner, do not lay burner on its
cylindrical burner tube.
Failure to heed this caution may cause damage to the
burner tube, which may lead to improper operation.
5. Release gas supply pipe fitting E.
Note: There is a gasket between the gas valve and
this connection.
6. Loosen four Torx (T-30) screws F and remove burner.
Check the burner gasket A and burner cylinder assembly
D for damage and replace if necessary. Replace the
cylinder burner assembly if damaged.
1. Remove electrode block B.
2. Loosen the three Torx screws and remove the thermal
insulation ring C.
3. Loosen the four Torx screws and remove burner
cylinder assembly D and assembly gasket E.
4. Fit and secure new burner cylinder assembly D
and new assembly gasket E. Tighten to a torque
of 31 lb.in (3.5 Nm) using a calibrated torque
wrench.
5. Reinstall thermal insulation ring C.
6. Reinstall electrode block B. Tighten to a torque
of 31 lb.in (3.5 Nm) using a calibrated torque
wrench.
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