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8514-311-001 REV PR
The recommended G20 and G25 supply pressure is 17.8 cm water column (7 inches) at each
dryer.
For altitudes above 610 m (2,000 feet), it is necessary to derate the gas consumption input.
Contact your local distributor for instructions.
G30 and G31 gas conversion kits are available for this dryer. Contact your local distributor.
WARNING
THE DRYER MUST BE DISCONNECTED
FROM THE GAS SUPPLY PIPING SYSTEM
DURING ANY PRESSURE TESTING OF
THAT SYSTEM. DO NOT EXPOSE THE
DRYER’S GAS CONTROL VALVE TO
TESTING PRESSURE.
7.1.9 Pressure Regulator Adjustments
1. With the dryer off, unscrew the outlet pressure tap on the gas control valve a half turn and
slip a pressure gauge tube over the nipple. Ensure that screw is retightened after the
regulator is adjusted.
2. Remove the regulator cap screw to expose the regulator adjustment screw.
3. Start the dryer. Using a screwdriver, slowly turn the adjustment screw until the required
burner pressure is indicated on the pressure gauge. Turn the adjustment the screw clockwise
to increase and counter-clockwise to decrease the gas pressure to the burner. Turn dryer off.
4. Replace the pressure regulator cap screw.
5. Remove the pressure gauge and retighten the pressure tap screw.