Vulcan Hart VCCG48 Manuel de service
VCCG36 Shown
SERVICE MANUAL
VCCG Series Heavy Duty Gas
Griddle
VCCG24
VCCG36
VCCG48
VCCG60
VCCG72
- 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
F45533 (1014)
VCCG Series Heavy Duty 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
BACK PANEL .......................................................................................... 5
CONTROL DEFLECTOR (HEAT SHIELD) ............................................................... 5
TEMPERATURE CONTROLLER ........................................................................ 6
RADIANT BURNER .................................................................................... 6
THERMOCOUPLE (RADIANT BURNER) ................................................................ 7
REMOVAL ......................................................................................... 7
INSTALLATION .................................................................................... 8
PILOT (RADIANT BURNER) ............................................................................ 8
IGNITION MODULE .................................................................................... 9
GAS VALVE ............................................................................................ 9
INFRARED BURNER .................................................................................. 10
THERMOCOUPLE (INFRARED BURNER) ............................................................. 11
REMOVAL ........................................................................................ 11
INSTALLATION ................................................................................... 11
IGNITOR (INFRARED BURNER) ...................................................................... 12
PILOT ORIFICE (INFRARED BURNER) ............................................................... 12
GRIDDLE PLATE ASSEMBLY ......................................................................... 13
SERVICE PROCEDURES AND ADJUSTMENTS ........................................................... 14
TEMPERATURE CONTROLLER CALIBRATION ....................................................... 14
RADIANT BURNER - AIR SHUTTER ADJUSTMENT ................................................... 15
GAS MANIFOLD PRESSURE ADJUSTMENT .......................................................... 15
BURNER GAS ORIFICE CHECK ...................................................................... 16
THERMOCOUPLE TEST .............................................................................. 17
TEMPERATURE CONTROLLER TEST ................................................................ 17
IGNITION MODULE TEST ............................................................................. 18
RADIANT BURNER - PILOT FLAME ADJUSTMENT ................................................... 19
GAS VALVE TESTS ................................................................................... 19
INFRARED BURNER .................................................................................. 20
ADJUSTMENT .................................................................................... 20
FLAME APPEARANCE ............................................................................ 20
ELECTRICAL OPERATION ................................................................................ 21
COMPONENT FUNCTION ............................................................................ 21
SEQUENCE OF OPERATION ......................................................................... 21
GRIDDLE WIRING DIAGRAM ......................................................................... 22
TROUBLESHOOTING ..................................................................................... 23
TEMPERATURE CONTROLLER - LED DIAGNOSTICS AND OPERATING STATUS .................... 23
IGNITION MODULE - LED DIAGNOSTICS AND OPERATING STATUS ................................ 23
GENERAL ............................................................................................ 24
INFRARED BURNER .................................................................................. 26
RADIANT BURNER ................................................................................... 26
© VULCAN 2014
F45533 (1014) Page 2 of 26
VCCG Series Heavy Duty 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
VCCG 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 VCCG griddles are available with three different
cooking surface types:
• Steel (standard).
• Chrome (optional).
• Rapid Recovery™ Griddle Plate* (optional).
*The Rapid Recovery Griddle plate is a composite
material which is engineered to provide a high heat
transfer rate to the food. The top surface can be
scored or dented by careless use of a spatula or
scraper. The center of the plate is an aluminum core
with sheets of stainless steel laminated to the top and
bottom exterior surfaces.
MODELS
Vulcan
• VCCG24 - 24" x 24" (width x depth) griddle plate.
• VCCG36 - 36" x 24" (width x depth) griddle plate.
• VCCG48 - 48" x 24" (width x depth) griddle plate.
• VCCG60 - 60" x 24" (width x depth) griddle plate.
• VCCG72 - 72" x 24" (width x depth) griddle plate.
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.
- 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 Types
- Griddles with Infrared Burners have one 24,000 BTU/
HR burner for each 12" of griddle width.
- Griddles with Radiant Burners* have one 30,000
BTU/HR burner for each 12" of griddle width.
*Atmospheric type “U” shaped aluminized steel.
Controls
- One Solid State thermostat with thermocouple probe
for each 12" 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.
Page 3 of 26 F45533 (1014)
- Temperature adjustment range 150°F to 550°F on all
griddle plate surface types except the Rapid Recovery
Griddle plate (150°F to 450°F).
- One Electronic Ignition module with pilot safety
system for each 12" of griddle width.
- One Dual Solenoid gas valve with internal regulator
for each 12" of griddle width.
TOOLS
Standard
• Standard set of hand tools.
• VOM with ability to measure micro amp current.
VCCG Series Heavy Duty Gas Griddle - GENERAL
• VOM with minimum of NFPA-70E CAT III 600V,
UL/CSA/TUV listed. Sensitivity of at least 20,000
ohms per volt. Meter leads must also be rated at
CAT III 600V.
• Temperature tester (K type thermocouple
preferred) with surface probe.
• U-Tube or Digital Manometer.
• Thread sealant suitable for use with natural or
propane gas.
Special
• 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.
F45533 (1014) Page 4 of 26
VCCG Series Heavy Duty 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. 1
2. Lay front panel face down in front of the unit while
servicing. Pull the drawer out to support the panel
as necessary.
NOTE: Griddles that are 60" and 72" wide have 2
grease drawers.
3. Reverse procedure to install.
BACK PANEL
1. Disconnect gas supply at griddle.
2. Remove all screws from rear of griddle securing
the back panel.
Fig. 2
3. Reverse procedure to install.
CONTROL DEFLECTOR (HEAT
SHIELD)
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove
2. Remove control deflector (heat shield) from
griddle frame. The number of mounting screws
installed depends on griddle width. After screws
are removed, lift the control deflector and rotate
forward to remove from griddle.
FRONT 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.
Page 5 of 26 F45533 (1014)
Fig. 3
3. Reverse procedure to install and check for proper
operation.
VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS
TEMPERATURE CONTROLLER
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove FRONT PANEL.
2. Note wire connections then disconnect them
from temperature controller.
3. Loosen screws securing knob guard to front
panel to provide clearance for knob removal.
7. Check TEMPERATURE CONTROLLER
CALIBRATION.
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 BACK PANEL.
2. Remove FRONT PANEL.
Fig. 4
4. Loosen set screw then remove knob from
temperature control shaft.
5. Remove screws securing temperature controller
to front panel.
3. Remove CONTROL DEFLECTOR (HEAT
SHIELD).
4. Remove burner flexible tubing from the burner
orifice elbow and gas valve fitting.
Fig. 6
5. Disconnect compression fitting from gas valve
inlet and slide gas valve off the tubing.
Fig. 5
6. Reverse procedure to install.
F45533 (1014) Page 6 of 26
VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS
Fig. 7
6. Note thermocouple connections then disconnect
from temperature controller.
7. Remove burner shield assembly and burner from
griddle (burner remains attached to the burner
shield assembly).
Fig. 9
9. Align mounting screw head on the burner air
shutter to the slot in heat shield assembly hole
and remove burner from heat shield.
10. Reverse procedure to install and check for proper
operation.
THERMOCOUPLE (RADIANT
BURNER)
Fig. 8
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.
8. Remove orifice holder bracket from burner shield
assembly.
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Removal
1. Remove
to access thermocouple shield and
thermocouple.
2. Push thermocouple shield toward the front of
griddle to disengage the rear mounting tab on
thermocouple shield from the support bracket on
the bottom of griddle plate.
3. Loosen mounting nut and remove thermocouple
probe from bottom of griddle plate.
RADIANT BURNER (steps 1 through 8)
Fig. 10
Page 7 of 26 F45533 (1014)
VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS
PILOT (RADIANT BURNER)
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Fig. 11
4. Remove insulating sleeve from thermocouple
wires and retain for use on replacement
thermocouple.
Installation
1. Slide insulating sleeve over thermocouple wires.
2. Apply a thin coating of heat transfer and antiseize compound to the thermocouple probe tip
and mounting nut threads.
3. Route thermocouple probe through the front
opening in griddle frame and lay it on top of
burner mounting panel.
4. 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.
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.
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 from pilot.
When disconnecting compression fitting
for the pilot, support bracket to prevent bending.
3. Remove pilot and mounting bracket 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.
5. Insert rear mounting tab on thermocouple shield
into the support bracket on the bottom of griddle
plate.
6. Route thermocouple wires through the opening
in burner shield assembly.
7. Re-install RADIANT BURNER.
8. Check TEMPERATURE CONTROLLER
CALIBRATION.
Fig. 12
6. Reverse procedure to install.
NOTE: When installing, verify spark gap is 1/8".
F45533 (1014) Page 8 of 26
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