MONTAGUE E136W36, Instructional Manual, Page: 29 / 40

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Regular maintenance by a competent person is recommended to ensure the continued safe and efficient
performance of the appliance.
Should service be required, kindly contact your dealer for assistance. Alternately, please contact us at the
following address:
IMPERIAL CATERING
ELITE HOUSE– CASTLE BUSINESS PARK
PAVILION WAY
LOUGHBOROUGH LE11 5GW
TEL: 01509 260 150 FAX: 01509 260 151
WARNING! TURN OFF THE GAS SUPPLY TO THE APPLIANCE AT THE SERVICE COCK BEFORE
COMMENCING ANY SERVICING WORK.
IMPORTANT: Test for gas soundness on completion of any servicing work. These instructions are
intended for use by competent service personnel.
GAS PRESSURE REGULATOR ADJUSTMENT PROCEDURE
DO NOT allow untrained personnel to maintain or service the gas pressure regulator.
Figure 13. Gas Pressure Regulator
1. Before adjusting the regulator, check the incoming gas line pressure. Incoming pressure before the
regulator must be 20 mbar for G20, or 27 mbar for G31.
2. If incoming pressure is not correct, have the gas source checked and adjusted as necessary.
3. Make sure that the regulator is mounted in the horizontal position with the arrow pointing in the direction
of the gas flow.
4. Connect a manometer to the pressure tap provided on the manifold between the regulator and the
burner valves.
5. Check the manometer reading. The reading must be 15 mbar for G20, or 25 mbar for G31.
6. If incoming line pressure is not correct, adjust the regulator. Remove seal cap on top of the regulator.
7. Insert a blade-type screw driver into the top hole of the regulator.
8. Turn the adjustment screw clockwise to increase the pressure, or counterclockwise to decrease the
pressure.
9. While watching the manometer, turn the adjustment screw to set proper Regulator outlet pressure.
SERVICE AND ADJUSTMENT PROCEDURES