Garland HEEGM48CL Service Manual

Also see for HEEGM24CL: Installation and operation manual

Garland HEEGM48CL Service Manual Manual pdf 22 page image

Page 22 | HEEGM Service Manual part# 4532502 (Rev 0)6 COMPONENTS (CONT.)6.6 Gas ValveHEEGM__CL models use non-adjustable control valves to regulate the flow of gas to the burners.These valves are fixed (no center stem adjustment).6.6.1 Inspecting a Gas ValveA damaged, fractured, seized, or restricted valve may result in delayed ignition or may prevent theburner from lighting at all.To check a valve, turn the valve to HIGH, then light. Then turn the valve to LOW and make sure itdoesn’t go out. If the valve is seized or hard to turn, replace it.6.6.2 Removing & Installing a Gas ValveDANGERTurn off gas supply and remove main power supply to the unit.WARNINGTest for gas leaks before returning the equipment into service.i IMPORTANTWhen reassembling the gas valve and extension, ensure the set-screw istightened against the flat part of the valve.Bottom ViewValveExtensionTighten Set Screw againstthe flat area of Gas ValveGas Valvei IMPORTANTEnsure the gas valve is tightened onto the manifold such that burner sitslevel when installed on the valve orifice.To replace a gas valve:1. DANGER: Turn off gas supply and remove main power supply to the unit.2. Remove the knobs and valve panel (see “6.2 Valve Panel”). Remove the grease chute and/orspigot if they are in the way.3. Remove the valve extension by loosening the set screw with an allen key.4. Use a combination wrench to loosen the valve by sliding the open end of the wrench over theorifice and onto the valve body.