6.4
Gas settings
The boiler is preset in the factory to operate on natural gas
G20.
6.4.1.
Gas circuit
WARNING
Ensure that the boiler is switched off.
1. Remove the front panel.
¼
See paragraph: "Open the boiler", page 53
2. Check that the boiler is properly set for the type of gas used (See
the identification plate on top of the boiler ).
WARNING
¼
To ascertain the gas types permitted, see chapter:
"Technical specifications", page 17
3. Open the main gas supply.
4. Open the gas valve on the boiler.
5. Check the gas supply pressure at the pressure test point
C
on the
gas inlet pipe. The pressure must be the same as the one shown
on the rating plate.
See the diagram for the position of measuring point
C
for
the inlet gas pressure.
6. Purge the gas supply pipe by unscrewing the screw from the
measure point
C
. Tighten the measurement point when the pipe
has been sufficiently purged.
7. Check the leak tightness of the gas pipe, including the gas block.
6.4.2.
Checking combustion
1. Unscrew the plug of the flue gas measurement point.
2. Insert the probe for the flue gas analyser into the measurement
opening.
WARNING
Ensure that the opening around the sensor is completely
sealed when taking measurements.
CAUTION
The flue gas analyser must have a minimum accuracy of
±0.25% CO
2
.
R000736-A
C
T003127-B
Baxi MainEco Combi and System 24 - 28 - 35 / 18 - 24
6. Commissioning
02092014 - 7619497-02
45
