Supplied By www.heating spares.co Tel. 0161 620 6677
Optia FF
-
Installation & Servicing
33
SERVICING
61 PILOT BURNER REPLACEMENT
1.
Refer to Frame 56.
2.
Remove the burner and air box assembly. Refer to Frame
51.
3.
Remove the electrode retaining nut and remove the pilot
shield and electrode.
4.
Unscrew the central pilot fixing screw and lift the pilot clear
of the pilot injector. The pilot injector may now be unscrewed
if required.
5.
Replace the pilot burner (injector if necessary) and retain
with the M4 screw previously removed. Ensure the copper
sealing washer is replaced when refitting the pilot injector.
6.
Replace the electrode and pilot shield, retaining
both with the electrode nut. Check the spark gap.
7.
Reassemble in reverse order.
8.
Check the operation of the boiler.
9.
The pilot is factory set to maximum and no further
adjustment is possible. Ensure there is an inlet
pressure of 20 mbar available. Also check burner
ignition and cross-lighting.
1.
Refer to Frame 56.
2.
Remove the limit thermostat assembly from the boiler
flow pipe.
3.
Disconnect the electrical connectors
4.
Replace and reassemble in reverse order, taking care to
correctly position the limit thermostat as shown in the
orientation diagram opposite.
60 LIMIT THERMOSTAT REPLACEMENT
SER
VICING
200776-4.pmd
6/23/2005, 10:12 AM
33
