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4.4.11 SANITARY NTC PROBE DISASSEMBLY (C.A.I.-C.S.I. Version)
OPERATION SEQUENCE ITEM INVOLVED TOOLS NEEDED FOR
WITH OPERATION THE OPERATION
11 • Disconnect the boiler from the electricity
supply
• Turn off the gas tap
11.1 Turn off sanitary H2O inlet tap Sanitary H2O tap No tools – by hand
11.2 Empty heating system No tools – by hand
11.3 Remove the case.
See procedure pag. 25
11.4 Remove safety hood from sanitary
NTC probe Rubber safety hood No tools – by hand
11.5 Disconnect connector from sanitary
NTC probe Connector No tools – by hand
11.6 Unscrew sanitary NTC probe Sanitary NTC probe and alumin. sealing 13mm wrench
!!
Work the other way round from the above for reassembly operations.
!!
MAKE FUNCTIONAL TESTS PAGES 65, 66 and 67.