- 62 -
INST
ALL
ATION
CHECKING THE GAS SETTINGS
7
CHECKING THE GAS SETTING
7.1 Warnings
Each time after measuring the gas
pressure, fully close all tapping
points that were used.
After each gas adjustment, the
valve adjustment components
must be sealed.
Warning: risk of electrocution.
The boiler is live during the opera-
tions described in this section.
Never touch any electrical parts.
7.2 Gas operations and setting
• Remove the front panel on the boiler body,
see section "Removing the body panels" on
page 69.
Checking the network pressure
• With the boiler turned off (out of service),
check the supply pressure using the tapping
point 26 in Figure 7.1 and compare the val-
ue read with those shown in the Gas supply
pressure table in section "Technical data
M300V.1616 SV" on page 26, "Technical
data M300V.2025 SV" page 29 and "Tech-
nical data M300V.3035 SV" page 32.
• Fully close the tapping point 26 in Figure 7.1.
Figure 7.1
28
26
Check minimum burner pressure
• Connect a flue analyser to the flue gas anal-
ysis outlets on the flue gas exhaust on the
boiler Figure 7.2.
Figure 7.2
Flue gas analy-
sis outlets
• Make sure that the room thermostat is in the
“heat request” position.
• Draw off an abundant amount of DHW by
opening the taps.
• Enter “programming mode” by pressing the
12 and 14 keys simultaneously for 5 seconds
(Figure 7.3) until
HiS
(Boiler History) appears
on the LCD display (Figure 7.4).
