Vulcan Hart VIG36-R3 SERVICE MANUAL
SERVICE MANUAL
VIG SERIES GAS GRIDDLE
VIG36-R3
VIG48-R3
VIG60-R3
- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified.
This manual is not intended to be all encompassing. If you have
not attended a Vulcan Service School for this product, you should
read, in its entirety, the repair procedure you wish to perform to
determine if you have the necessary tools, instruments and skills
required to perform the procedure. Procedures for which you do
not have the necessary tools, instruments and skills should be
performed by a trained Vulcan Service Technician.
The reproduction, transfer, sale or other use of this Manual,
without the express written consent of Vulcan, is prohibited.
This manual has been provided to you by ITW Food Equipment
Group LLC ("ITW FEG") without charge and remains the property
of ITW FEG, and by accepting this manual you agree that you will
return it to ITW FEG promptly upon its request for such return at
any time in the future.
A product of Vulcan-Hart 3600 North Point Blvd Baltimore, MD 21222
F45623 (0217)
VIG SERIES GAS GRIDDLE
TABLE OF CONTENTS
GENERAL .................................................................................................. 3
INTRODUCTION ....................................................................................... 3
MODELS ............................................................................................... 3
INSTALLATION ........................................................................................ 3
OPERATION ........................................................................................... 3
SPECIFICATIONS ...................................................................................... 3
TOOLS ................................................................................................. 3
REMOVAL AND REPLACEMENT OF PARTS ............................................................... 5
FRONT PANEL ......................................................................................... 5
CONTROL PANEL ..................................................................................... 5
BACK PANEL .......................................................................................... 5
TEMPERATURE CONTROLLER ........................................................................ 6
RADIANT BURNER .................................................................................... 6
THERMOCOUPLE PROBE (RADIANT BURNER) ....................................................... 7
REMOVAL ......................................................................................... 7
INSTALLATION .................................................................................... 7
PILOT (RADIANT BURNER) ............................................................................ 8
IGNITION MODULE .................................................................................... 8
GAS VALVE ............................................................................................ 9
GRIDDLE PLATE ASSEMBLY ......................................................................... 10
INSTALLATION ................................................................................... 11
SERVICE PROCEDURES AND ADJUSTMENTS ........................................................... 12
TEMPERATURE CONTROLLER CALIBRATION ....................................................... 12
GAS MANIFOLD PRESSURE ADJUSTMENT .......................................................... 13
RADIANT BURNER - AIR SHUTTER ADJUSTMENT ................................................... 14
RADIANT BURNER GAS ORIFICE CHECK ............................................................ 15
THERMOCOUPLE TEST .............................................................................. 15
TEMPERATURE CONTROLLER TEST ................................................................ 15
IGNITION MODULE TEST ............................................................................. 16
RADIANT BURNER - PILOT FLAME ADJUSTMENT ................................................... 17
GAS VALVE TESTS ................................................................................... 17
ELECTRICAL OPERATION ................................................................................ 19
COMPONENT FUNCTION ............................................................................ 19
SEQUENCE OF OPERATION ......................................................................... 19
GRIDDLE WIRING DIAGRAM ......................................................................... 20
TROUBLESHOOTING ..................................................................................... 21
TEMPERATURE CONTROLLER - LED DIAGNOSTICS AND OPERATING STATUS .................... 21
IGNITION MODULE - LED DIAGNOSTICS AND OPERATING STATUS ................................ 21
GENERAL ............................................................................................ 22
RADIANT BURNER ................................................................................... 24
© VULCAN 2017
F45623 (0217) Page 2 of 24
VIG SERIES GAS GRIDDLE - GENERAL
GENERAL
INTRODUCTION
This Service Manual covers specific service
information related to the models listed on the front
cover. Procedures in this manual will apply to all VIG
Heavy Duty Gas Griddles unless otherwise specified.
Raising the griddle plate is not required for servicing
the griddle components. Griddle components are
serviced through the front and rear. Pictures and
illustrations can be of any model unless the picture or
illustration needs to be model specific.
The VIG griddles are available with two different
cooking surface types:
• Steel (standard).
• Chrome (optional).
MODELS
Vulcan
• VIG36-R3 - 33" x 24" griddle plate.
• VIG48-R3 - 45" x 24" griddle plate.
• VIG60-R3 - 57" x 24" griddle plate.
NOTE: Dimensions given are width x depth.
- 6 foot corded plug with ground provided.
Gas Manifold Pressure:
- Natural Gas 4.0" W.C.
- Propane Gas 10.0" W.C.
Incoming Gas Pressure:
- 7" to 9" W.C. Natural Gas
- 11" to 12" W.C. Propane Gas.
- Incoming pressure should not exceed 14.0" W.C.
(0.5 PSI) for either gas type.
Burner
- Radiant Burners* have one 30,000 BTU/HR burner
for each 11" of griddle width.
*Atmospheric type “U” shaped aluminized steel.
Controls
- One Solid State thermostat with thermocouple probe
for each 11" of griddle width.
- Temperature adjustment range 150°F to 550°F on
both griddle plate surface types.
- One Electronic Ignition module with pilot safety
system for each 11" of griddle width.
INSTALLATION
Generally, installations are made by the dealer or
contracted by the dealer or owner. Detailed
installation instructions are included in Installation &
Operation manual that is sent with each unit.
It should be noted that an improperly installed unit,
especially an unleveled unit can lead to premature
electrical component failures. A unit that is higher in
the front will cause the flue gases to vent improperly
and gather in the front near the electrical components.
OPERATION
Detailed operation instructions are included in the
Installation & Operation manual sent with each unit.
The manual is also available online at
www.vulcanequipment.com.
SPECIFICATIONS
Electrical
- 120VAC 50/60Hz 2 amp single phase.
- One Dual Solenoid gas valve with internal regulator
for each 11" of griddle width.
TOOLS
Standard
• Standard set of hand tools.
• 1/2" crowfoot socket wrench for removing
thermocouple probe.
• VOM with minimum of NFPA-70E CATIII 600V,
UL/CSA/TUV listed. Sensitivity of at least 20,000
ohms per volt and the ability to measure DC
micro amps. Meter leads must also be rated at
CAT III 600V.
• Temperature tester Kit 00-538454 or equivalent
(K type thermocouple preferred) with surface
probe.
• U-Tube or Digital Manometer.
• Thread sealant suitable for use with natural or
propane gas.
Special
Page 3 of 24 F45623 (0217)
VIG SERIES GAS GRIDDLE - GENERAL
• Torque wrench capable of measuring at least 25
in-lbs. for tightening thermocouple probe to
griddle plate. Bolt size 5/16"-18.
• Safekote 60™ or equivalent Heat Transfer and
Anti-Seize Compound rated for 600°F (purchase
locally). Apply to thermocouple probe.
• Two equal lengths of 2x4 appropriate for the
griddle plate width, leaving additional length to
grasp on each side of griddle plate. Ex. 24"
griddle requires two 36" long 2x4.
F45623 (0217) Page 4 of 24
VIG SERIES GAS GRIDDLE - REMOVAL AND REPLACEMENT OF PARTS
REMOVAL AND REPLACEMENT OF PARTS
FRONT PANEL
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
The front panel holds the temperature controllers,
thermostat cycle lights and lighted power switch.
1. Remove four screws securing the front panel to
frame.
Fig. 2
3. Grasp control panel at the top. Lift panel up and
rotate outward to remove from griddle.
Support the control panel to prevent
damage to wiring.
Fig. 1
2. Lay front panel face down in front of the unit while
servicing.
NOTE: Griddles that are 60" and 72" wide have 2
grease drawers.
3. Reverse procedure to install.
CONTROL PANEL
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove FRONT PANEL.
2. Remove two screws securing the control panel to
frame.
4. Reverse procedure to install.
BACK PANEL
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Shut off the gas before servicing the
unit.
All gas joints disturbed during
servicing must be checked for leaks. Check with a
soap and water solution (bubbles). Do not use an open
flame.
NOTE: Remove the back panel when servicing a
burner, temperature probe, pilot burner; or to remove
excessive grease build up from the flue area.
1. Disconnect gas supply at griddle.
2. Remove screws from rear of griddle securing the
back panel.
Page 5 of 24 F45623 (0217)
VIG SERIES GAS GRIDDLE - REMOVAL AND REPLACEMENT OF PARTS
Fig. 3
3. Reverse procedure to install.
TEMPERATURE CONTROLLER
Fig. 5
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove
2. Remove CONTROL PANEL.
3. Note wire connections (1, Fig. 4) then disconnect
them from temperature controller (2, Fig. 4).
4. Loosen screws (3, Fig. 4) securing knob guard to
control panel to provide clearance for knob
removal.
FRONT PANEL.
7. Reverse procedure to install.
8. Check
CALIBRATION.
TEMPERATURE CONTROLLER
RADIANT BURNER
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Shut off the gas before servicing the
unit.
All gas joints disturbed during
servicing must be checked for leaks. Check with a
soap and water solution (bubbles). Do not use an open
flame.
NOTE: Radiant burner is removed through the front
of griddle.
1. Remove FRONT PANEL.
2. Remove CONTROL PANEL.
3. Remove burner flexible tubing (1,
4. Remove 4 screws (2, Fig. 6) from orifice bracket.
5. Remove 5 screws (3, Fig. 6) from burner support
Fig. 4
5. Loosen set screw then remove knob from
temperature controller shaft.
6. Remove screws securing temperature controller
to control panel.
F45623 (0217) Page 6 of 24
Fig. 6) from the
burner orifice elbow.
plate.
VIG SERIES GAS GRIDDLE - REMOVAL AND REPLACEMENT OF PARTS
THERMOCOUPLE PROBE
(RADIANT BURNER)
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Use 1/2" crowfoot socket wrench for
thermocouple removal and replacement. See TOOLS
Fig. 6
6. Remove burner support plate from griddle.
7. Remove thermocouple shield from bottom of
griddle.
A. Pull thermocouple shield (1, Fig. 7) toward
the front of griddle to disengage the rear
mounting tab (2, Fig. 7) on thermocouple
shield, from the support bracket on the
bottom of griddle plate. Rear view of
thermocouple shield shown in Fig. 7.
Fig. 7
8. Remove burner from griddle.
9. Reverse procedure to install and check for proper
operation.
NOTE: When installing burner, ensure the locating
pin and mounting plate at the rear of burner are
properly inserted in the mounting slot. At the front of
griddle, ensure the thermocouple shield front
mounting tab is inserted in the burner shield slot to
support the thermocouple shield.
Removal
1. Remove RADIANT BURNER (steps 1 through
7A) to access thermocouple shield and
thermocouple probe.
2. Note thermocouple wire locations then
disconnect from temperature controller
(Red=negative; Yellow= positive).
3. Remove
4. Loosen mounting nut and remove thermocouple
probe from bottom of griddle plate. Rear view
shown of thermocouple probe in Fig. 8.
Installation
1. Apply a thin coating of heat transfer and antiseize compound to the thermocouple probe tip
and mounting nut threads.
2. Route thermocouple probe through the front
opening in griddle frame and lay it on top of
burner mounting panel (underneath griddle).
3. From rear of griddle, thread thermocouple probe
into the mounting hole in griddle plate and stop
when probe tip touches the plate. Torque the
mounting nut to a maximum of 25 in-lbs.
BACK PANEL.
Fig. 8
Do not over tighten or damage to the
thermocouple probe may occur. Due to the aluminum
plate core, it is also possible to create a raised area
over the probe if overtightened.
Page 7 of 24 F45623 (0217)
VIG SERIES GAS GRIDDLE - REMOVAL AND REPLACEMENT OF PARTS
4. Insert rear mounting tab on thermocouple shield
into the support bracket on the bottom of griddle
plate.
5. Route thermocouple wires through the top
opening in burner support plate.
6. Connect thermocouple wires to temperature
controller.
7. Re-install RADIANT BURNER.
8. Re-install BACK PANEL.
9. Check TEMPERATURE CONTROLLER
CALIBRATION.
PILOT (RADIANT BURNER)
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Shut off the gas before servicing the
unit.
All gas joints disturbed during
servicing must be checked for leaks. Check with a
soap and water solution (bubbles). Do not use an open
flame.
1. Remove RADIANT BURNER.
2. Disconnect compression fitting (1, Fig. 9) from
pilot.
When disconnecting compression fitting
for the pilot, support bracket to prevent bending.
3. Remove pilot and mounting bracket (2, Fig. 9)
from the burner mounting panel.
4. Pull spark wire through the hole in control
mounting panel and remove pilot from griddle.
5. Remove pilot from pilot mounting bracket (3, Fig.
9).
Fig. 9
6. Reverse procedure to install.
NOTE: When installing, verify spark gap (1, Fig. 10)
is 1/8" between ignitor electrode (2, Fig. 10) and pilot
flame hood (3, Fig. 10).
Fig. 10
7. Check for proper operation.
1. Remove
F45623 (0217) Page 8 of 24
IGNITION MODULE
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
FRONT PANEL.
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