MONTAGUE E136W36, Instructional Manual, Page: 10 / 40

10
Adjustment Procedure
WARNING!
DO NOT ALLOW UNTRAINED PERSONNEL
TO MAINTAIN OR SERVICE THE GAS
PRESSURE REGULATOR.
1. Before adjusting the regulator, check the
incoming gas line pressure into the regulator.
Incoming pressure must be 20 mbar for G20
gas, 37 mbar for G31 gas, or 30 mbar for G30
gas.
2. If incoming pressure is not correct, have the
gas source checked and adjusted.
3. Make sure that the regulator is mounted in
the horizontal position with the arrow pointing
in the direction of the gas flow. SEE PAGE 14,
LIGHTING/RELIGHTING PILOT AND
BURNER.
4. Remove the main burner control valve
knobs,
Figure 5.
Figure 5. Control Valve Knobs
5. Remove the control valve panel by
removing two screws.
6. Connect a manometer to the pressure tap
provided on the broiler unit gas piping
manifold, Figure 6. Turn all gas taps to the full
―O‖ position.
7. Check the manometer reading. The
reading must be 15 mbar for G20 gas, 25 mbar
for G31 gas, or 25 mbar for G30 gas, per Table
B on PAGE 5.
8. If incoming line pressure is not correct,
adjust the regulator. Remove the seal cap
on the top of the regulator.
9. Insert a blade-type screwdriver into the top
hole of the regulator.
10. Turn the adjustment screw clockwise to
increase the pressure, or counter clockwise
to decrease the pressure.
While watching the manometer, turn the
adjustment screw to set proper regulator outlet
pressure to the manifold.
Figure 6. Gas Pressure Tap