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Service
The front burner shield should be removed to see the pilot. The pilot should be adjusted as follows:
Adjust the pilot burner flame
The pilot flame should envelop 3/8 to 1/2 inch [10 to 13 mm] of the igniter-sensor tip. Refer to Figure 2. To adjust the pilot flame:
Figure 2
1. Remove the pilot adjustment cover screw. Refer to Figure 1.
2. Turn the inner adjustment screw clockwise to decrease or counterclockwise to increase the pilot flame.
3. Always replace the cover screw after adjustment and tighten firmly to ensure proper operation.
Pilot Orifices Sizes
Gas Pressure Regulator
The gas pressure regulator is an integral part of the combination gas control located just behind the lower front access
door. The pressure regulator adjustment is on the lower right side of the gas control (see Figure 1). The large slotted cap
must be removed to access the adjustment screw.
Adjustments
To check the manifold pressure a pressure gauge (manometer) must be connected to the 1/8" NPT pressure tap on the
gas manifold. With the gas off, connect your pressure indicating instrument to the manifold with a fitting appropriate for
your instrument.
1. Turn the unit on; with main burners on, read the manifold pressure. The pressure should be 4 inches water column
(W.C.) (±) .2 inches W.C. for natural gas or 10 inches W.C. for propane gas. Adjust the pressure regulator to obtain
the appropriate pressure. Check serial plate on lower right side of unit to confirm exact gas type and manifold
pressure for your unit.
When pressure has been correctly adjusted turn unit off. Remove pressure indicating instrument and replace the 1/8" NPT
plug in manifold. Replace regulator cap and close access door.
Thermostat
The thermostat adjustment should not be changed. Check the following before changing the thermostat.
1. With kettle cool, the pressure reading on the pressure gauge should be in the green vacuum zone (below 0 psi). If not,
see "Re-establishing Vacuum" section.
2. Check that the pressure switch is not set too high or too low and causing the out of adjustment condition. A voltmeter
should be used by a properly trained serviceman to determine if the pressure switch or thermostat is actually cycling
the burners. If the pressure switch is found to be the problem, see "Pressure Switch" section.
After verifying that the pressure switch is set and operating properly, the thermostat may be adjusted using the set screw
inside the stem. The thermostat should cycle off at a gauge pressure reading of 30 psi. Turn set screw clockwise to
decrease pressure and counterclockwise to increase pressure.
18
PAGE
OF 32
Model
GL-40FE & GL-60FE
INSTALLATION & OPERATION MANUAL 10199 REV 3 (08/22)
Proper flame adjustment
Natural
0.018 IN.
Gas Kettles
Propane
0.010 IN.
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