Vulcan-Hart ML-136221-00G24 Gas Pressure Measurment, Regulator Troubleshooting, Flame Switch

Models: ML-136221-00G24

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REGULATOR TROUBLESHOOTING

REGULATOR TROUBLESHOOTING

SYMPTOM – UNIT WILL NOT MAINTAIN CONSISTENT PRESSURE

1.Check that vent limiter is not clogged by grease and debris

2.Check store gas pressure before regulator with all equipment on that line turned on and consuming gas

A.For natural gas should be between 7” and 14” W.C.

B.For propane gas should be between 12” and 14” W.C.

3.Check that regulator is installed in a horizontal, upright position

4.If no problems found in steps 1 – 3, replace the regulator

GAS PRESSURE MEASURMENT

1.Set the power on/off switch to the OFF position.

2.Turn the gas supply off at a manual shutoff valve.

3.Remove the control panel.

4.Remove the pressure tap plug from the far left/#1 burner port and attach manometer

5.Turn gas back on and turn power switch to the ON position

6.Turn all thermostats on to the maximum setting so that all burners are on.

7.Turn all the equipment on the same supply line on.

8.Check gas pressure

9.Gas pressure should read 5” W.C. for natural and 10” W.C. for propane gas.

10.Turn off the power switch.

11.Turn gas supply off, disconnect manometer and reinstall pressure tap plug.

12.Turn power switch and gas supply back on.

GAS PRESSURE MEASURMENT All gas joints disturbed during servicing must be checked for leaks. Check with a soap and water solution. Do not use an open flame.

FLAME SWITCH

PRESSURE TAP

SPARK

 

IGNITOR

 

MODULE

PRESSURE TAP AT #1 BURNER

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Vulcan-Hart ML-136221-00G24 manual Gas Pressure Measurment, Regulator Troubleshooting, Flame Switch, Pressure Tap, Spark