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Controls Group
507 E. Michigan Street
P.O. Box 423
Milwaukee, WI 53201
20 G—GM-20/25 and GM-40/45 Series Dual-block Multi-function Gas Control Valves Technical Bulletin
8. Paint the pipe connections and flanges of the valve with a rich soap
and water solution.
If bubbles occur, this is an indication of a leak. To stop a leak, tighten
joints and pipe connections. Replace the part if the leak cannot be
stopped.
If bubbles do not occur, remove the air tubing and close the upstream
pressure connection.
9. Open the main manual shutoff valve.
10. Observe at least three complete operating cycles to ensure that all
components are functioning correctly.
www.johnsoncontrols.com
FAN 121
Installation Sheets Manual
Printed in U.S.A.
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