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Proceed as follows to adjust the single gas valve:
mode'.
Caution: in the event of the boiler failing to ignite, or when replacing the mixer / gas valve group, the
recommended procedure is to tighten the adjuster screw (V) fully and then back off 10 turns for natural
gas (G20) and 5 turns for propane gas (LPG), repeating the steps described below.
gas (G20) and in table 2.2 for propane (LPG):
Remove the protection cap and turn the adjuster screw K
shown in table 2:
Figure 15a
IMPORTANT: in the event of converting the boiler from natural gas (G20) to propane (LPG), the following
operation must be carried out before proceeding to adjust the gas valve as described above:
H536 - H541 - H608 - H609 - H610 - H611 - H612 - H613 by way of the display on the
control panel.
The values to be set are given in tables 2.1 and 2.2. The programming methods are described in chapter 14.
INSTRUCTIONS PERTAINING TO THE INSTALLER
and
keys on the control panel simultaneously for 7 seconds until the
V
GAS CONVERSION
levels shown in table 2.1 for natural
2
level.
2
level.
2
level.
2
level.
2
Figure 15b
31
symbols
. You are now in 'calibration
2
7115344.01 - en
levels
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