UK/IRL
36
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9.1.4
Pilot/thermocouple assembly
This is not a serviceable item, both thermocouple and pilot should be
replaced together.
Pilot/thermocouple assembly
1)
Remove the burner tray.
2)
Remove the lead from the pilot spark igniter.
3)
Break the gas pipe connection to the pilot.
4)
Unscrew thermocouple nut from the rear of the gas control.
5)
Unscrew pilot assembly from the burner tray (2 screws)
6)
Replace and re-assemble in reverse order.
9.1.5
Gas control block
A Govenor;
B
Adjustable screw pilot flame;
C
Inlet pressure test point ;
D
Burner pressure test point.
9.1.6
Combustion test
A BS7967 combustion analysis check should be carried out using an
analyser to BS7927 positioned in the flue outlet.
Fig. 25
D C
B
A
Fig. 24
Summary of Contents for CADRA NOVA
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