Vulcan ML-135340-00036 - Manual

Page 2 - TABLE OF CONTENTS; TEMPERATURE PROBE.......................................................

- 2 - TABLE OF CONTENTS INSTALLATION………………………………………………………….. OPERATION……………………………………………………………... CLEANING……………………………………………………………….. LUBRICATION…………………………………………………………… SPECIFICATIONS………………………………………………………. COMPONENT LOCATION……………………………………………... CONTROL PANEL………………………………………………………. BULLNOSE…………………………………...

Page 3 - GAS REGULATOR...............................................................; REGULATOR TROUBLESHOOTING

- 3 - BURNER………………………………………………………………….. BURNER TROUBLESHOOTING ………………………………………. BURNER REMOVAL ……………………………………………………. BURNER ADJUSTMENT ……………………………………………….. GAS REGULATOR……………………………………………………… REGULATOR TROUBLESHOOTING …………………………………. SYMPTOM-UNIT WILL NOT MAINTAIN CONSISTENT GAS PRESSURE …………………………………...

Page 4 - GENERAL; Certain procedures in this manual require electrical test or; No procedure in this

- 4 - GENERAL INTRODUCTION This manual is prepared for the use of trained service technicians and should only be used by those who are properly qualified. This manual is not intended to be all encompassing. You should read, in it's entirety, the repair procedure you wish to perform to determine if y...

Page 5 - COMPONENT LOCATION; 6RRG CONFIGURATION SHOWN

- 5 - COMPONENT LOCATION TEMPERATURE CONTROLLER 498438 SAFETY IGNITION MODULE 498443 DUAL SOLENOID VALVE 713656 GAS MANIFOLD 720122 PILOT SPARK ASSEMBLY 713930 INDICATOR LIGHT 720017 POWER SWITCH 810280-1 PILOT ADJUSTMENT VALVE 719194 PRESSURE CHECK PLUG BURNER ORIFICE 3/8” FLEX TUBE ¼” FLEX TUBE 36...

Page 6 - EXTERIOR PANELS; Disconnect the electrical power and

- 6 - EXTERIOR PANELS CONTROL PANEL Disconnect the electrical power and follow lockout / tagout procedures The Control Panel holds the thermostats, indicator lights and power switch. REMOVAL 1. Remove the four screws securing the front of the control panel. There are two screws at each end of the pa...

Page 7 - THERMOSTAT; SYMPTOM – BURNER WILL NOT COME ON; WIRING CONFIGURATION

- 7 - THERMOSTAT The thermostat is a solid state control. The thermostat supplies power to the burner solenoid valves and indicator lights when turned on or until the temperature setpoint is reached. Disconnect the electrical power and follow lockout / tagout procedures THERMOSTAT TROUBLESHOOTING SY...

Page 8 - THERMOSTAT REMOVAL; TEMPERATURE PROBE; Disconnect the; TEMPERATURE PROBE REMOVAL

- 8 - Disconnect the electrical power and follow lockout/tagout procedures THERMOSTAT REMOVAL 1. Remove the control panel 2. Remove the knob 3. Label and disconnect the wires 4. Remove the thermostat retaining nut on the knob shaft. 5. Reverse procedure to install while being careful to install the ...

Page 9 - ADJUSTMENTS; C A L I B R A T I O N

- 9 - ADJUSTMENTS C A L I B R A T I O N 1 . E a c h t e m p e r a t u r e c o n t r o l l e r c o n t r o l s a 1 2 ” z o n e o f t h e g r i d d l e . U s i n g a S u r f a c e P r o b e t e m p e r a t u r e m e a s u r e m e n t d e v i c e , o b s e r v e t h e t e m p e r a t u r e s a t t h e ...

Page 10 - Check for 120 voltage from #2 terminal to ground; P O W E R S W I T C H R E M O V A L; c o n t r o l p a n e l .

- 10 - POWER ON/OFF SWITCH The Power Switch controls the power supply to all other electronic components. Disconnect the electrical power and follow lockout / tagout procedures POWER SWITCH TROUBLESHOOTING SYMPTOM – NO POWER BEING SUPPLIED TO THE UNIT 1. Check for loose or excessively greasy/dirty c...

Page 11 - INDICATOR LIGHT; INDICATOR LIGHT TROUBLESHOOTING; Remove the control panel; SAFETY IGNITION MODULE; A is

- 11 - INDICATOR LIGHT The indicator light illuminates fully to indicate that the corresponding thermostat and burner have turned on and gas is flowing through the corresponding solenoid valve. The indicator light will illuminate at a lower intensity when the pilot safety circuit is being made (pilo...

Page 12 - SAFETY IGNITION MODULE TROUBLESHOOTING; a. If no voltage check on/off switch and wiring for shorts or breaks; IGNITION MODULE REMOVAL; SOLENOID VALVES

- 12 - Disconnect the electrical power and follow lockout / tagout procedures SAFETY IGNITION MODULE TROUBLESHOOTING SYMPTOM – NO SPARK BETWEEN PILOT HEAD AND ELECTRODE 1. Check for loose or greasy/dirty connections at all terminals (including electrode wire) 2. Check for 120 voltage from pin 4 wire...

Page 13 - Shut off gas supply; body that are stamped IN; pressure; and check for proper operation.; Check with a soap and water solution. Do not use an open flame.

- 13 - Disconnect the electrical power and follow lockout / tagout procedures SOLENOID VALVE TROUBLESHOOTING SYMPTOM – NO GAS FLOW TO BURNER 1. Check terminals for loose or greasy/dirty connections 2. Check gas pressure – check for orifice obstructions. 3. With thermostat, indicator light and power ...

Page 14 - PILOT; SYMPTOM – PILOT WILL NOT LIGHT; from the safety ignition module.; BRASS PILOT

- 14 - PILOT The RRG Series Griddles utilize a solenoid valve with a brass pilot valve to control gas flow to pilot burners. One to three pilot flames can be fed by one valve – one leg of which may be branched. PILOT TROUBLESHOOTING SYMPTOM – PILOT WILL NOT LIGHT 1. Check pilot adjustment at solenoi...

Page 15 - HELPFUL HINT; BURNER; BURNER TROUBLESHOOTING; Check gas pressure; Remove the back panel

- 15 - HELPFUL HINT – If the unit is attached to a flexible gas line, you can extend the bullet feet out to their fullest extension to raise the griddle and allow yourself more clearance while reaching under the unit. Remember to relevel the unit if you chose to do this. BURNER The RRG Series Griddl...

Page 17 - GAS REGULATOR; consuming gas; GAS PRESSURE MEASURMENT; VENT LIMITER

- 17 - GAS REGULATOR REGULATOR INSTALLED IN A HORIZONTAL, UPRIGHT POSITION The RRG series units must have an exterior machine gas regulator installed. The units are shipped with a regulator that has a vent limiter. These regulators must be installed as close as possible to the unit in a horizontal, ...

Page 18 - PRESSURE TAP AT #1 BURNER; SEQUENCE OF OPERATION

- 18 - 12. Turn power switch and gas supply back on. All gas joints disturbed during servicing must be checked for leaks. Check with a soap and water solution. Do not use an open flame. PRESSURE TAP AT #1 BURNER SEQUENCE OF OPERATION Operation is the same for all size griddles. The neutral wire from...

Page 19 - WIRING DIAGRAMS; WIRING DIAGRAM – 24-INCH GRIDDLE

- 19 - WIRING DIAGRAMS WIRING DIAGRAM – 24-INCH GRIDDLE

Page 20 - WIRING DIAGRAM – 36-INCH GRIDDLE

Page 21 - WIRING DIAGRAM – 48-INCH GRIDDLE

Page 22 - WIRING DIAGRAM – 60-INCH GRIDDLE