M 11. Nozzle Replacement - Viessmann VITOFLAME 200 Service Instructions Manual

Implementation
15 to 33 kW
40 kW
50 and 63 kW
(cont.)
M
11. Nozzle replacement
aint.
Initial start−up, inspection and maintenance
1. Plug the burner chassis, with the
blast tube connection pointing
upwards, onto the burner housing.
Please note:
This avoids air−locks being created
when replacing nozzles.
2. Pull flame monitor D from its
retainer.
3. Release screw C by two full
turns.
4. Remove sensor plate A from the
blast tube connection.
5. Unscrew nozzle F (whilst holding
the blast tube connection).
6. Insert the replacement nozzle
(whilst holding the blast tube
connection).
Please note:
For make and type of nozzle, see
standard values for burner
settings, page 22.
7. Only for 15 to 33 kW:
Check seal ring B on deflector E
of the sensor plate and apply
instrument grease; replace the
seal ring, if necessary.
8. Push sensor plate A onto the
blast tube connection up to the
end−stop of the oil pre−heater and
re−tighten fixing screw C.
9. Push flame monitor D into its
retainer.
Please note:
The flame monitor, type QRB,
should be positioned at the sensor
plate (see page 8).
11