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For the burners to work the gas supply valve must be open and the main power switch must be on.
The main burner receives gas from the main gas supply through the thermostatically oontrolled valve.
When the therDlostat is turned up the gas control valve opens and the pilot will ignite the burners.
After the burner system is operating, perfOrDl the burner adjustments in the following procedure.
Figure 1-5 illustrates the different oonditions possible for the main burner.
incoming gas pressure.
Adjust manifold pressure as
described in 1.53.2.
INsumCIENT GAS PRESSURE
The flame
-liftofr
The flame seems to wli:
the faa; of the burner.
To correct adjust
burner as describc
1.5.3.2.
adjust main
described in
EX~IVE FLOW
Figure 1-4 Main Burner Conditions
1-11