Flowmeter - Beretta Ciao C.A.I Service Manual

4.4.4 FLOWMETER DISASSEMBLY (C.A.I.-C.S.I. Version)
OPERATION SEQUENCE
4 • Disconnect the boiler from the electricity
supply
• Turn off the gas tap
4.1 Turn off sanitary inlet tap
4.2 Empty sanitary system
4.3 Remove the case.
See procedure pag. 25
4.4 Disconnect flowmeter supply connector
4.5 Unscrew nut (1) fastening water-flowmeter
inlet ramp
4.6 Loosen nut (2) fastening water-exchanger
inlet ramp
4.7 Extract flowmeter-frame fastening clip (3)
4.8 Remove flowmeter
To check the filter at the flowmeter inlet, once the above operations have been done it is best to:
4.9 Unscrew nut fastening water inlet
connection ramp
4.10 Remove filter at flowmeter
inlet from its housing
Work the other way round from the above for reassembly operations.
! !
MAKE FUNCTIONAL TESTS PAGES 65, 66 and 67.
! !
24
ITEM INVOLVED
WITH OPERATION
Sanitary H2o tap
Sanitary H2o tap
Connector
N. 1 nut
N. 1 nut
Clip

Flowmeter

N. 1 nut
Filter
caldaie
TOOLS NEEDED FOR
THE OPERATION
No tools – by hand
No tools – by hand
No tools – by hand
24mm wrench
24mm wrench
Long pliers
No tools – by hand
24mm wrench
Cutting screwdriver
2
1
3
4