Biasi RIVA ADVANCE HE M110B.24SM/C Service Manual page 31

J
I
G
Fig. 11.9
3 Turn off the gas supply and disconnect the gas
isolation cock connector from the inlet port of the
gas valve.
Using pliers, remove the spring I and the rubber
4
pipe J (Fig. 11.9).
Fig. 11.10
K
H
L
M
5 Unscrew the connector K (Fig. 11.9), remove the
fixing fork L and remove the pipe M (Fig. 11.10).
N
Fig. 11.11
6 Unscrew the screws N and remove the valve
(Fig. 11.11).
7 Reassemble the valve carrying out the removal
operations in reverse order.
Before to fit a new valve it is advisable to pre-- set it
as hereafter explained.
8 Remove the brass plug and turn the plastic screw
inside it fully clockwise until it stops. Do not over-
tight.
9 Turn it counter---clockwise 2 and 3/4 turns.
10 Adjust the gas valve using the flue analyser as de-
scribed in section 11.3.
After any service operation on the components of
the gas circuit check all the connections for gas
leaks.
Warning: After cleaning or replacement as
detailed above, it is deemed necessary to
undertake a combustion analysis as detailed
in chapter 11.3 section 11.
Gas valve
29