REPLACEMENT OF COMPONENTS
Before commencing any work involving component replacement :
1.
Isolate electrical supply.
?. Turn off gas at the gas service cock.
3. Turn off water at the water inlet cock.
4. Drain the applrance by opening hot water outlet tap and removing the drain plug in the water service cock
5. Remove the front casing (see Section 6.1).
7.2
7.3
Thermocouple
- Remove the burner (see Section 6.21.
- Remove the pilot (see Section 6.3).
- Trace the thermocouple and disconnect at the ter-
minal on the PCB.
- With a 7 mm boxspanner, unscrew the nut (B) hol-
ding the thermocouple into the gas section.
- Thread the thermocouple and wire up through the
gas section.
-
Replace in reverse order.
Spark Electrode
.A
- Remove the burner (see Section 6.2).
-
Remove the electrode retaining screw (A)
- Pull off the electrode cable from the piezo cartridge.
- Lift the electrode out of the gas section.
- Re-assemble in reverse order, and note that the slot
in the connector on the end of the electrode cable is
vertical when pushed onto the cartridge.
NOTE : Spark gap is 3-5 mm
Thermoelectric valve
-
To renew, remove the thermocouple conductor
lead nut (Al.
-
Unscrew cap (B) from the side of the gas section
and withdraw the thermoelectric valve.
NOTE - This heater is fitted with a safety interlock.
When the pilot is turned off, the appliance cannot be
relit until the thermocouple cools down and the ligh-
ting sequence is repeated.
18
Remove the burner (see section 6.2)
To Next Page
Loading...
Need help?
General
