Vulcan 24RRG ML-135339-00024 - Manuals

Page 2 - TABLE OF CONTENTS

TABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 3 - GENERAL; INTRODUCTION; TOOLS

GENERAL INTRODUCTION This Service Manual covers specific serviceinformation related to the models listed on the frontcover. Procedures in this manual will apply to all RRGHeavy Duty Gas Griddles unless otherwise specified.Raising of the griddle plate is not required for servicingthe griddle componen...

Page 5 - REMOVAL AND REPLACEMENT OF PARTS; CONTROL PANEL

REMOVAL AND REPLACEMENT OF PARTS CONTROL PANEL Disconnect the electrical power to the machine andfollow lockout / tagout procedures. The Control Panel holds the thermostats, indicatorlights and power switch. 1. Remove four screws securing the front of controlpanel to frame. Fig. 1 2. Remove screw(s)...

Page 6 - THERMOCOUPLE; TEMPERATURE CONTROLLER

THERMOCOUPLE Disconnect the electrical power to the machine andfollow lockout / tagout procedures. Shut off the gas before servicing the unit. All gas joints disturbed during servicing must be checked for leaks. Check with asoap and water solution (bubbles). Do not use an openflame. Removal 1. Remov...

Page 8 - IGNITION MODULE

2. Access ignition module, and disconnect highvoltage spark wire. Fig. 9 3. Remove CONTROL PANEL. 4. Lift griddle at the front and support it fromunderneath for access to the pilot. (Be aware ofthe main gas line at the rear when tilting) 5. Remove pilot bracket retaining screw. Fig. 10 6. Position p...

Page 9 - DUAL SOLENOID VALVES

Fig. 12 3. Disconnect high voltage spark wire and controlwire harness female connector. 4. Remove two mountingnuts and screws holdingthe ignigtion module to the cover. Fig. 13 5. Reverse proceedure for install and verify properoperation. NOTE: Clear silicone sealant on the control wire harness femal...

Page 10 - SINGLE SOLENOID VALVE

Fig. 15 7. Remove the three NPT elbows. Two on front andone on the back of dual solenoid valve. NOTE: Be sure to note positioning of NPT elbows on dual solenoid valve. 8. Reverse proceedure for installation. NOTE: When installing solenoid valves be sure that the coil valve clamp is placed correctly ...

Page 11 - GAS PRESSURE REGULATOR; GRIDDLE PLATE ASSEMBLY

GAS PRESSURE REGULATOR Disconnect the electrical power to the machine andfollow lockout / tagout procedures. Shut off the gas before servicing the unit. All gas joints disturbed during servicing must be checked for leaks. Check with asoap and water solution (bubbles). Do not use an openflame. Clean ...

Page 12 - SERVICE PROCEDURES AND ADJUSTMENTS; TEMPERATURE CONTROL

SERVICE PROCEDURES AND ADJUSTMENTS TEMPERATURE CONTROL CALIBRATION NOTE: Ensure the griddle is level before performing calibration as outlined under LEVELING in theInstallation & Operation Manual. NOTE: Do not use an infrared thermometer for measuring griddle surface temperatures. Thesedevices a...

Page 14 - BURNER NOZZLE CHECK

Fig. 22 1. Remove pressure tap plug and connectmanometer to the pressure tap located on the farleft burner port. Fig. 23 2. Check manometer reading. The reading shouldbe 5" W.C. for natural gas and 10" W.C. forpropane gas. Tolerance is ±0.3" W.C. 3. If manifold pressure is not correct, a...

Page 17 - SOLENOID VALVE TESTS

Fig. 30 A. To increase pilot flame turn valve needle counterclockwise . To decrease pilot flame, turn valve needle clockwise . 6. Once pilot flame is adjusted correctly, turn offpower switch. 7. Connect dual solenoid valve connectors. 8. Install CONTROL PANEL. 9. Check for proper operation. SOLENOID...

Page 18 - ELECTRICAL OPERATION; COMPONENT FUNCTION

ELECTRICAL OPERATION COMPONENT FUNCTION Temperature Control . . . Controls griddle surface temperature for the individual heat zone by monitoring thermocouple input (K type ). Temperature Probe . . . Senses griddle surface temperature for the heat zone using a K type thermocouple. Provides input to ...

Page 24 - TROUBLESHOOTING

TROUBLESHOOTING TROUBLESHOOTING PROBLEM POSSIBLE CAUSES No spark to ignite pilot burner. 1. Power switch inoperative. 2. No power to ignition module. 3. Ignition module not properly grounded 4. Ignition module malfunction. 5. Spark gap incorrect. 6. Ignitor/flame sense wire inoperative. Spark at ign...