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Turn the metering valve 1/8 turn in either way for each adjustment to keep track of the adjustments. After adjusting the valve wait a
moment for the combustion levels to stabilize before attempting to make any further adjustments. Continue this procedure until
combustion levels are satisfied. NOTE: Metering valve is factory set and should not normally require adjustment.
NOTE: Illustrations below do not reflect actual gas train assemblies on these models.
Figure 39: Typical Gas Train (Models AR1000-AR3000)
Figure 40: Typical Gas Train (Models AR3500-AR4000)
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