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4.4.3 a FLAME IGNITER-CONTROL ELECTRODE DISASSEMBLY (C.A.I. Version)
OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR
WITH OPERATION THE OPERATION
3 • Disconnect the boiler from the electricity
supply
• Turn off the gas tap
3.1 Remove the case.
See procedure pag. 25
3.2 Disconnect flame igniter-control plug
lead from control panel Safety hood and faston Hand made hood and faston with pliers
3.3 Free the electrode cable from the cable
holder on the instrument panel Electrode cable No tools – by hand
3.4 Cut the fastons on the wiring N. 2 fastons Scissors
3.5 Take off front part of combustion
chamber and grid, removing screws (1) N. 2 screws + 2 clip Magnetic PH2 screwdriver
3.6 Disconnect earthing of the electrode Earthing fastons Pliers
3.7 Unscrew the screws (2) fastening electrode
support-burner N. 1 screw Magnetic PH1 screwdriver
3.8 Remove electrode from its housing Flame igniter-control electrode No tools – by hand
!!
Work the other way round from the above for reassembly operations.
!!
MAKE FUNCTIONAL TESTS PAGES 65, 66 and 67.
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