Circulator - Beretta Ciao C.A.I Service Manual

4.4.2 CIRCULATOR DISASSEMBLY (C.A.I.-C.S.I. Version)
OPERATION SEQUENCE
2 • Disconnect the boiler from the electricity
supply
• Turn off the gas tap
2.1 Turn off heating system taps
2.2 Turn off sanitary inlet tap
2.3 Remove the case
See procedure pag. 25
2.4 Empty heating system
2.5 Remove circulator electric wiring cover (1)
and disconnect circulator lead
2.6 Extract safety valve.
See procedure pag. 42
2.7 Remove fastening clip (1) from heating
return flexible ramp
2.8 Remove heating return flexible ramp (2)
from the circulator
2.9 Remove fastenging clip (3) from the
heating delivery flexible ramp
2.10 Remove heating delivery flexible ramp (4)
from the circulator
2.11 Remove fastening clip (5) from
expansion tank
2.12 Remove expansion tank flexible ramp (6)
from circulator
2.13 Slide off clip (7) fastening
capillary hydrometer
2.14 Remove capillary hydrometer fitting (8)
2.15 Remove fastening clip (9) from pressure
switch water
2.16 Remove pressure switch water (10)
2.17 Remove clip fastening (11) the non-flexible
fitting of return heating-frame
2.18 Slide off clip (12) fastening
rigid heating delivery fitting -frame
2.19 Unscrew the two screws fastening (13)
circulator -frame and remove circulator
2.20 Lift up circulator to free it from
fittings located on bracket
2.21 Slide off clip (14) fastening
union tee-circulator
Work the other way round from the above for reassembly operations.
! !
MAKE FUNCTIONAL TESTS PAGES 65, 66 and 67.
! !
20
ITEM INVOLVED
WITH OPERATION
Heating system taps
Sanitary inlet tap
Valve safety lever
N. 1 screw
N. 1 clip
Flexible ramp
N. 1 clip
Flexible ramp
N. 1 clip
Flexible ramp
N. 1 clip
N. 1 clip
Water pressure
N. 1 clip
1 clip
N. 2 screws
N.1 clip
caldaie
TOOLS NEEDED FOR
THE OPERATION
No tools – by hand
No tools – by hand
No tools – by hand
Magnetic PH2 screwdriver
Long pliers
No tools – by hand
Long pliers
No tools – by hand
Long pliers
No tools – by hand
Long pliers
No tools – by hand
Long pliers
No tools – by hand
Long pliers
Long pliers
Magnetic PH2 screwdriver
Circulator No tools – by hand
Long pliers