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4.2
Removing the Piezo Igniter
4.2.1
Remove the burner assembly as in section 4.1
4.2.2
Disconnect the ignition lead from the piezo and unscrew the
retaining nut on the rear of the control panel. Withdraw the piezo from
the front of the control panel. Reassemble in reverse order and carry
out a gas tightness test.
4.3
Removing the Control Tap from the fire.
4.3.1
Remove the burner assembly as in section 4.1.
4.3.2
Pull the control knob off the control tap spindle.
4.3.3
Loosen and remove the three gas pipe retaining nuts from the control
tap and release the ends of the gas pipes from the control tap body.
Loosen and remove the thermocouple securing nut from the end of the
control tap.
4.3.4
Unscrew the control tap locknut from the front of the control panel and
remove the control tap.
4.3.5
To refit a control tap, reassemble in reverse order noting that the control
tap locates with a flat in the control panel. Carry out a gas tightness
test after re-assembly.
4.4
Removing the Oxy-Pilot Assembly
Note : Because this appliance is fitted with an atmosphere sensing 'Oxy-
Pilot' it is not possible to replace the thermocouple separately, because the
thermocouple position is factory set to a tight tolerance. Any replacement of
parts on the pilot requires a complete new pilot assembly.
4.4.1
Remove the burner assembly as in section 4.1
4.4.2
Unscrew and remove the thermocouple retaining nut from the end of the
control tap and disconnect the ignition lead from the pilot electrode.
4.4.3
Unscrew and remove the two pozi-driv screws which secure the pilot
assembly to the burner. Remove the pilot.
4.4.4
Re-assemble in reverse order and carry out a gas tightness test.
35
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