Gas valve
26
6
Unscrew the screws
N
and remove the valve
(Fig. 11.11).
7
Reassemble the valve carrying out the removal
operations in reverse order.
L
M
Fig. 11.10
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
1 (Fig. 11.2) fully clockwise until it stops. Do not
overtight.
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.
N
Fig. 11.11