Checking The Ignition And Ionization Electrodes; Closing The Boiler Door; Cleaning The Burner - Viessmann Vitocrossal 200 CM2 186 Service Instruction

Commissioning, Inspection and Maintenance
Steps – Commissioning, Inspection and Maintenance

Checking the ignition and ionization electrodes

Check the ignition electrodes and the ionization electrode
for correct gap towards the cylinder burner assembly and
damage (replace if required).
See burner component Installation Instructions.
Ignition electrodes
Ionization electrode

Closing the boiler door

Note: Tighten the boiler door screws evenly across with
a torque of approximately 13 lb.ft (18 Nm).
20
Vitocrossal 200 CM2 186 to 311 Service
(continued)

Cleaning the burner

1. Loosen the retaining clamp and disconnect the
combustion air flex hose A.
2. Visually inspect the combustion air hose A and
venturi mixing pipe B.
3. If cleaning is required remove the venturi B (refer
to page 35 for burner fan removal procedures) and
clean the venturi pipe, fan casing and impeller with
low pressure compressed air.
CAUTION
Working with compressed air may lead to serious injury.
Never direct the air jet at yourself or others.
Always wear appropriate personal protective equipment
and clothing.
4. To clean the burner, vacuum the inside and outside of
the burner tube C (refer to page 39 for burner tube
removal procedures).
IMPORTANT
Use a soft upholstery brush when cleaning the outside of
the burner tube to prevent damage.