DOMINA 80 E
47
7.04 Remove and re-presurising
of C.H. expansion vessel
(fig. 36)
• Refer to 7.01 a, b
• Isolate electricity and water supplies
• Remove outer case (two screws bottom rear corners)
• Loosen the "A" connections to expansion vessel
• Remove "B" screw
• Remove the expansion vessel
• Re-assemble in reverse order
• Re-pressure expansion vessel
(charge pressure 0,8-1 bar) through the valve "C"
• Ensure pressure relief value is open
(twist about 1/2 of a turn) when repressurizing
B
A
C
7.05 Gas valve
(fig. 37)
• Isolate gas and electricity supplies
• Remove outer case (two screws bottom rear corners)
• Remove the two securing screws and lower
control panel
• Disconnect electrical connections from valve
("A", "B")
• Disconnect plastic tube "C"
• Loosen the connection "D" on gas pipe and
the gas inlet connection of the boiler
• Remove the two fixing screw "E" below gas
valve
D
C
A
F
B
E
• Slide out gas valve
• Remove four fixing screw "F" on top of the
valve and disconnect the gas pipe
• Remove bottom connection from gas valve.
• Fit top + bottom gas connections to the new
gas valve and replace in reverse order
Fig. 36
Fig. 37
