Commissioning
44
MAXXfl o EVO
Please ensure that the cork gasket between the fan and the venturi is correctly
placed before
fi
xing with the two venturi screws. Place a screw through the venturi to hold
the gasket in place when re
fi
tting to fan (see illustration below)
•
Re-secure the venturi to the gas valve with 3 screws, ensuring that the rubber seal and orifi ce remains in
place on the gas valve
•
Initially turn the throttle adjustment screw according to the table below:
•
Follow the commissioning procedure in section 5.2 with the exception that the
CO
2
combustion fi gure
should now be as listed in the table above for LPG (G31)
It should not be necessary to turn the throttle screw more than two turns away from the initial
adjustment setting to achieve ignition. If this is the case, ensure that the components are re
fi
tted
correctly and also be aware that the gas carrying pipes may need purging before gas is available
for ignition at the burner.
•
Allow one minute between adjustments, and do not move the adjuster more than 1/4 turn at any one time
•
Replace the cover over the throttle adjustment screw, when adjustment is complete
•
Affi x the new LPG serial number data label supplied with the heater over the top of the existing natural
gas data plate
•
Fit LPG warning label to heater cover.
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Model
MAXXfl o EVO 30
MAXXfl o EVO 60
LPG Orifi ce size
5.2mm
5.55mm
Initial Adjustment
G20 to G31
2.1 turns
clockwise
0.5 turns
anti-clockwise
CO
2
Combustion
Figure - LPG (G31)
10%
(
+/- 0.2%)
9.5%
(
+/- 0.2%)
Throttle
adjustment
screw
+
CO
2
_
CO
2
