Vulcan-Hart ML-114556, ML-52953, ML-52947, ML-52950, ML-52952, ML-52951 Regulator Installation

Page 25

REGULATOR CHECK, ADJUSTMENT, INSTALLATION (Cont.)

1.Connect the manometer to the pressure tap provided on the rear manifold pipe (see Fig. 23).

2.Check the reading. The reading should be 3.7" Water Column for natural gas and 10.0" Water Column for propane gas.

3.If reading is incorrect and the proper line pressure has been verified, then the regulator must be adjusted. Using a standard flat blade screwdriver, remove the regulator adjustment cap (Figs. 26 & 27).

Fig. 26

Fig. 27

Insert the screwdriver into the adjustment shaft and turn the adjustment stop while watching the manometer until the correct pressure reading is achieved. Clockwise rotation of the stop increases pressure; counterclockwise rotation decreases pressure.

After resetting the pressure to the correct setting, reinstall the adjustment cap and remove the testing equipment.

REGULATOR INSTALLATION

TOOLS REQUIRED: Slip joint plier or pipe wrench.

NOTE: The pressure regulator must be attached to the unit in the horizontal position with the arrow pointing in the direction of the gas flow, unless at some point in time the regulator has been recalibrated (see Fig. 7).

1.Turn main gas supply “OFF”.

2.Remove old regulator.

3.Wrap the manifold pipe threads of the insulating end with pipe thread sealant.

4.Install new regulator as indicated by the above NOTE.

5.Turn main gas supply “ON” and check the regulator connections for gas leakage using a soap and water solution. If no leaks are found, return unit to full operation. If leak is detected, turn main gas valve “OFF” and eliminate leakage.

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Contents Series and VG Series Qualified Service Personnel Qualified Installation PersonnelQualified AND/OR Authorized Operating Personnel For Your Safety Important for Your SafetyGAS Restaurant Range Models GAS Restaurant Range ModelsThermostat Adjustments Service Notations Dedicated Technical Service HOT LineAdjustments Servicing Simple Checks and AdjustmentsUnits Mounted on Casters Checks2A L and 48L Oven Door J-Bolt Assembly Servicing Simple Checks and AdjustmentsOven Door Turnbuckle Pilot Flame Height Air Shutter Adjustment GAS Connections GAS Connections Testing the GAS Supply SystemHOT TOP and Griddle TOP Pilot Burner Adjustments Pilot Lighting and AdjustmentsHOT TOP and Griddle TOP Burners Complete ShutdownOpen TOP Burner Adjustments Pilot Lighting and AdjustmentsOpen TOP Burners BROILER/GRIDDLE BROILER/GRIDDLE AdjustmentsStandard Oven Convection Snorkel Oven 90 Series Only Oven Burner Adjustments Bypass Adjustment Thermostat AdjustmentsTemperature Calibration Thermostat AdjustmentsShown with old style burner knobs Thermostat Adjustments Thermostat Adjustments Dial Shaft Regulator Check Regulator CHECK, ADJUSTMENT, InstallationRegulator Adjustment Regulator CHECK, ADJUSTMENT, InstallationRegulator Installation Standard Oven and Griddle Thermostat Replacement Standard Oven & Griddle Thermostat ReplacementStandard Oven and Griddle Thermostat Checks and Calibration Standard Oven & Griddle Thermostat ReplacementStandard Oven & Griddle Convection Oven Thermostat Replacement Standard Oven Pilot Safety Valve Check Standard Oven Pilot Safety Valve CHECK, ReplacementSafety Valve Replacement Procedures Standard Oven Pilot Safety Valve CHECK, ReplacementStandard Oven Pilot Safety Valve CHECK, Replacement Oven Pilot Replacement Oven Pilot CHECK, ReplacementOven Pilot Check Thermocouple Replacement Thermocouple CHECK, ReplacementThermocouple Check Oven Burner Nozzle and Orifice Check Oven Burner Nozzle and Orifice ReplacementOven Burner Replacement Oven Burner CHECK, ReplacementOven Burner Check Pilot Adjustment Valve Replacement TOP Section Pilot CHECK, ReplacementTOP Section Pilot Replacement TOP Section Pilot CheckConvection Oven Motor and Door Switch CHECK, Replacement TOP Section Burner Valve and Nozzle CHECK, ReplacementConvection Oven Motor and Door Switch CHECK, Replacement Condition Possible ProblemMicro Door Switch Replacement Convection Oven Motor Replacement 90 Series Only Convection Oven Motor and Door Switch CHECK, Replacement Convection Oven Motor and Door Switch CHECK, Replacement Convection Oven Motor and Door Switch CHECK, Replacement Solenoid Check Centrifugal Switch Check Removal of Convection Oven Solenoid 90 Series Only Centrifugal Switch CheckRemoval of Convection Oven Solenoid Removal of Convection Oven Solenoid Removal of Convection Oven Solenoid Form 31056 Rev. a

ML-114555, ML-114554, ML-114556, ML-114553, ML-114557 specifications

Vulcan-Hart is a renowned name in the commercial kitchen equipment industry, known for its commitment to quality, performance, and innovation. Among its impressive lineup, the Vulcan-Hart ML-52953, ML-52947, ML-52950, ML-52952, and ML-52951 models stand out as exceptional offerings tailored for a variety of foodservice applications.

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