13 Bentone
2.10 Adjusting the gas train
The burner is test run with propane before delivery.
The safety valve (7) must be fully open during operation. At initial setting, the
adjusting screw (c) must have lifted the valve for stage 1 by 1-2 turns.
On start-up, safety valve (7) and valve on double solenoid valve (5) open, gas
ows through the valve for stage 1.
When the burner has started on stage 1, proceed to stage 2 and start adjusting
this stage rst. When stage 2 is complete, adjust stage 1.
Adjustment of stage 2 is done with adjusting screw (a) on the double solenoid
valve (5) which regulates the opening of the valve controlling the gas for
stage 2. The burner is now receiving gas for maximum load, adjust the power
on stage 2 to the desired load and set the air damper for stage 2 and nozzle
assembly for a good combustion.
The power is adjusted for stage 2 by adjusting the opening of valve 1 with the
adjusting screw (a) and the gas pressure is adjusted on the pressure regulator
screw (b). The air damper and nozzle assembly shall also be adjusted to obtain
the correct air volume and good combustion.
Adjustment of stage 1 on the burner is done when stage 2 is complete, adjust
the stage 1 valve on the double solenoid valve (5) using the adjusting screw (c).
If this is screwed in, the gas ow to the burner is increased by lifting the valve.
This valve is always open and this opening is what gives the min-load. Adjust
the air damper for stage 1 for good combustion.
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