OPERATION AND FIELD INSTALLATION MANUAL
GTS Heavy Duty Electric Griddle Top
MODELS
GTS12-1
GTS12-2
GTS12-3R
GTS12-4R
MODEL GTS12
RETAIN THIS MANUAL FOR FUTURE USE
©ITW Food Equipment Group, LLC
3600 North Point Blvd.
Baltimore, MD 21222
FORM F-38300 (05-13)
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HEAVY DUTY ELECTRIC GRIDDLE TOP
GENERAL
Heavy Duty Electric Griddle Tops are produced with quality workmanship and materials.
Proper installation, usage and maintenance of the griddle top will result in many years of
satisfactory performance.
Thoroughly read this entire manual before beginning and carefully follow all of the
instructions provided.
INSTALLATION
Before installing, check the electrical service to make sure it agrees with the
specifications on the rating plate. If the supply and equipment voltages do not agree, do
not proceed with the installation. Contact your dealer or Vulcan-Hart immediately.
INSTALLATION CODES AND STANDARDS
Your Vulcan griddle top must be installed in accordance with:
In the United States of America:
1. State and local codes
2. National Electrical Code ANSI/NFPA – 70 (latest edition) available from The National
Fire Protection Association,1 Batterymarch Park,Quincy, MA 02269.
3. NFPA Standard #96 Vapor Removal from Cooking Equipment, (latest edition) available
From the National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
In Canada:
1. Local code
2. Canadian Electrical Code C22.1 Part 1 (latest edition) available from the Canadian
Standard Association, 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada,
L4W 5N6.
ELECTRICAL SPECIFICATIONS
1 Phase
Model No
Description
Voltage Power
Draw
17.3 A
15 A
17.3 A
15 A
GTS12‐1
GTS12‐2
GTS12‐3R
GTS12‐4R
208 V
240 V
208 V
240 V
3.6 kW
3.6 kW
3.6 kW
3.6 kW
Front Grease
Trough Models
Rear Grease
Trough Models
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UNPACKING
This griddle top was inspected before leaving the factory. The transportation company
assumes full responsibility for safe delivery upon acceptance of shipment. Check for
possible shipping damage immediately after unpacking. If the griddle is found to be
damaged, save the packaging material and contact the carrier within 15 days of delivery.
The griddle and its parts are hot. Use care when operating, cleaning
or servicing the griddle.
Disconnect power supply and follow lockout / tagout procedures
before cleaning and servicing the appliance.
BEFORE FIRST USE
Remove all packaging material and protective plastic from the unit. It is recommended
that you clean your Vulcan GTS griddle top thoroughly with a mild soap and water. Wipe
the griddle surface thoroughly with water and wipe dry with a soft clean cloth.
SEASONING THE GRIDDLE
Each time, before turning the unit on, apply high temperature cooking oil – about two
ounces per GTS top plate. Work the oil into the whole griddle surface.
After cleaning your griddle with chemicals, you should repeat the seasoning procedure for
proper cooking.
CONTROLS
The heavy duty electric griddle top section is independently controlled by a power
switch, thermostat and high limit cutoff switch. When the power switch (red rocker
switch) is turned ON, the left amber light will illuminate and power will be supplied to the
thermostat. The thermostat cover must be removed to access the thermostat adjustment
knob.
When the thermostat is turned ON, the amber indicator light to the right of the power
switch will illuminate to indicate that the element is on. When the griddle plate reaches
the desired temperature set point, the element will be turned off and the amber indicator
light will go off. The high limit cutoff switch is a safety feature that will cut power to the
heating element to prevent overheating. The high limit switch can be reset by depressing
the high limit reset button. At the end of each day, you must push the power switch to the
OFF position to turn off power to the griddle top section. See Fig. A.
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High Limit Reset Access Plug
Thermostat Cover
Thermostat Adjustment Knob
Power Switch
Trigger
Handle
High Limit Reset Button
Fig. A
Amber Indicator Lights
Power Light (Left)
Heating Light (Right)
To raise the assembly to the 47˚ position
1. Lift by the handle only
2. Raise until assembly locks itself into
place. See Fig. B
Do not squeeze the trigger and
handle together to raise the assembly.
Do not force unit if it does not
move up and down in the prescribed
Fig. B
manner. The assembly may be damaged
by the application of excessive up or down
force. Contact an authorized service agent
if assembly becomes difficult to move.
2
To lower the assembly
1. Lift slightly from the handle (to take
weight off)
2. Squeeze the trigger towards handle
3. Lower it to the desired position. Do
not allow griddle top to fall to surface.
See Fig. C
1
Fig. C
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USING THE ELECTRIC GRIDDLE
To preheat, wipe the griddle top plate with cooking oil and set the thermostats for the
desired temperatures 10-12 minutes before cooking.
A uniform and systematic approach to loading the griddle will produce the most consistent
product results.
REAR
REAR
REAR
REAR
FRONT
FRONT
FRONT
FRONT
The griddle plate is a composite material which is engineered to provide a high heat
transfer rate to the food. The top surface is stainless steel and can be scored or dented
by careless use of a spatula or scraper. Be careful not to dent, scratch, or gouge the
plate surface. Do not try to knock off loose food that may be on the spatula by tapping the
corner or the edge of the spatula on the griddle surface. Do not use hardened steel
spatulas. Use mild steel spatulas with rounded corners.
CARE AND CLEANING
The griddle and its parts are hot. Use care when operating, cleaning
or servicing the griddle.
Clean the electric griddle top regularly. A clean griddle always looks better, lasts longer
and performs better. To produce evenly cooked, perfectly browned griddle products keep
the griddle plate clean and free of carbonized grease. Carbonized grease on the surface
hinders the transfer of heat from the griddle surface to the food, resulting in spotty
browning and loss of cooking efficiency. Carbonized grease tends to cling to griddle
foods, giving them a highly unsatisfactory and unappetizing appearance.
To keep the griddle clean and operating at peak efficiency, follow these procedures:
AFTER EACH USE
Clean the electric griddle top with a griddle scraper during the work shift. Keep the
griddle scraper head flat to avoid scratching or gouging the plate. Use a cooking release
agent to prevent product from sticking to the griddle top cooking surface.
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ONCE PER DAY
Thoroughly clean all stainless steel exterior panels and surfaces. Clean the cooking
surface with a non-metallic scouring pad (Scotch-Brite™).
ONCE PER WEEK
Clean the griddle surface thoroughly. A mild detergent solution may be used on the plate
surface to help clean it, but be sure the detergent is thoroughly removed by wiping down
with clear water.
After removal of detergent from the surface of the plate, the griddle should be coated with
cooking oil according to the instructions in this manual.
Clean stainless steel surfaces with a damp cloth and polish with a soft dry cloth. To
remove discoloration, use a griddle cleaner.
If the griddle usage is very high, consider conducting this weekly cleaning procedure
more than once per week.
Do not use a brick or griddle stone for cleaning.
Do not use metallic scouring pads for cleaning.
Do not use a water-jet to clean the griddle.
Do not use chlorine sanitizer in contact with griddle. Contact can cause
discoloration, corrosion and permanent damage.
Do not use cleaning agents including Sodium Hydroxide, which is common in
household oven cleaners. Contact can cause discoloration, corrosion and
permanent damage.
SHUTDOWN OF GRIDDLE
1. Set the power switch to the OFF position. This will shut down the griddle top
completely.
EXTENDED SHUTDOWN
1. Shut off the main electrical supply.
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MAINTENANCE
The griddle and its parts are hot. Use care when operating, cleaning
or servicing the griddle.
Disconnect power supply and follow lockout / tagout procedures
before cleaning and servicing the appliance.
LUBRICATION
There are no parts on this unit that require lubrication.
SERVICE AND PARTS INFORMATION
Contact the Authorized Service Agency in your area to obtain service and parts
information. For
a
complete listing of Service and Parts depots refer to
When calling for service the following information should be available from the appliance
serial plate: Model Number, Serial Number and voltage.
FIELD INSTALLATION ASSEMBLY
Contact the authorized service agency in your area for field installation.
The field installation instructions are prepared for the use of trained service technicians and should only be
used by those who are properly qualified. These instructions are not intended to be all encompassing. You
should read, in its entirety, the installation instructions to determine if you have the necessary tools,
instruments and skills required to perform the procedure. The field installation should not be attempted if you
do not have the necessary tools, instruments and skills.
TOOLS REQUIRED FOR FIELD INSTALLATION
1. #2 Philips head screw driver
2. M10 socket driver
3. 7/16” socket driver
4. Rubber mallet
5. Power drill
6. 7/8” deep well socket wrench
7. (2) large “F” clamps
8. 5/32” drill bits for metal
9. Thread lock compound (Loctite Blue®)
10. ¾” wide masking tape
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ASSEMBLY
The griddle and its parts are hot. Use care when operating, cleaning
or servicing the griddle.
Disconnect power supply and follow lockout / tagout procedures
before cleaning and servicing the appliance.
Prior to assembly, make sure the
mounting bracket is the correct size. The
back bracket should match the width of
the griddle. Make sure the griddle top
electrical
specifications
match
the
available service. Each griddle top will
require its own separate electrical service.
1. Using (2) washers and (2) ¼”-28 bolts,
assemble one of the side mount
brackets to the back bracket as shown
in Fig. 1. The bolts should be hand
tightened only at this point. Repeat
procedure to attach the other side
mount bracket to the other end of the
back bracket.
Fig. 1
2. The entire mounting bracket system
should be assembled at this point as
shown in Fig. 2 with bolts hand
tightened only.
Griddle Top
Assembly Mounting Points
Fig. 2
3. Slide mounting bracket system onto
back of the griddle as shown in Fig. 3.
The left and right side brackets should
be pushed up until stopped by the
bottom of the griddle and pushed
forward until stopped by the griddle
back panel.
Secure the mounting
bracket system at this location with a
“F” clamp on each side of the assembly
as shown. Place a wood block or other
type of protection between clamp and
griddle plate.
Fig. 3
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4. Securely tighten the mounting bracket
system assembly bolts at the left and
right side mounting brackets.
Fig. 4.
5. Check that the left and right mounting
brackets have not moved from position
while the assembly bolts were
tightened. The “F” clamps should still
be in place to
from moving while drilling holes in the
chassis.
prevent the assembly
Fig. 4
Fig. 5
Fig. 6
Check before drilling holes in chassis, it
is important that the assembly has not
moved from the location prescribed in
step # 3
6. Using the side mounting bracket as a
guide, drill holes into the griddle chassis
with the 5/32” bits only at the highest
hole and the hole nearest the front of
the unit on the side bracket. See Fig. 5
and Fig 6. Repeat procedure for
opposite side of bracket system
assembly.
7. Insert and tighten 10-24 x ½ screws into
the holes that were drilled in step 6.
Repeat procedure for opposite side of
bracket system assembly. See Fig. 6.
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8. Drill the remaining holes through the
side mounting brackets into the griddle
chassis. Insert and tighten screws as
shown in Fig. 7. Repeat procedure for
the other side of the assembly.
9. Drill holes with 5/32” bits from the rear of
the side mounting bracket into the back
mounting bracket and install wall spacer
with (4) 10-24 x ½” screws as shown in
Fig. 8. Repeat procedure for the other
side of the assembly.
Fig. 7
Wall Spacer
10. Install one bottom support bracket every
two feet of griddle width between griddle
top mounting points as needed for
additional support. Bottom support
brackets should be flush with bottom of
griddle chassis and back mounting
bracket. Drill two holes with 5/32” bits
and attach with 10-24 x 2” screws as
shown in Fig.9 to the back mounting
bracket. Repeat for each bottom
support bracket needed.
Fig. 8
Cutaway
side view
Bottom support
bracket
Fig. 9
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It may be necessary to
angle the griddle and hang one of the
four legs off the edge of the table at a
time to complete step 11. Ensure that
the griddle is safely supported and this
step is accomplished with aid of a
second person.
11. Drill two holes with 5/32” bits through
bottom support brackets and into the
bottom of griddle chassis. Insert and
tighten 10-24 x 2” screws as shown in
Fig.10. Repeat as necessary for all bottom
support brackets.
Fig. 10
Mounting Plate
12. Attach masking tape to mounting plate and
slide into position between the griddle back
panel and the top of the selected griddle
top mounting point as shown in
Fig. 11.
Fig. 11
Mounting Plate
Griddle top
mounting point
13. Use tape to align holes in mounting plate
with holes in griddle top mounting point as
shown in Fig. 12. Tape to hold in position
until installation of griddle top is complete.
Repeat steps 12 and 13 for the bottom
mounting point.
Fig. 12
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14. Place cardboard or other protective
covering on the gas griddle surface to
prevent scratching.
15. Set electric griddle top down on the gas
griddle plate at desired mounting
position. Lower rear arm assembly into
place so that notches on arm engage
mounting bracket rails as shown in
Fig. 13.
Fig. 13
16. Check that the flue deflector has been
installed as shown in Fig. 14 before
proceeding.
Fig. 14
Flue Deflector
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17. Set lower mounting spacer in place.
Apply a thread locking compound to (2)
M10 hex bolts with lock washers. Insert
the bolts through the mounting spacer
and bracket. Thread into the mounting
plate (set into place in step 13) and
tighten. See Fig. 15. Repeat process for
upper mounting point.
M10 hex bolts and lock washers (upper mounting point)
Mounting Spacer
Fig. 15
M10 hex bolts and lock washers (lower mounting point)
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The electric griddle top should
be securely attached to the mounting
brackets and raised in the locked 90°
position before proceeding. Attempting
to install tension springs in lowered
position may cause damage.
TENSION SPRING INSTALLATION
Fig. 16
18. Raise the electric griddle top to the locked
90° position. Slide the springs onto the
tension rods and then the spring bracket.
The fin should be positioned at rear
bottom and the radius edge bracket facing
outwards. The electric cord will rest in this
radius when assembled. See Fig. 16.
(X)
Spring Bracket
GTS12‐1 & GTS12‐2
Threads showing (X) Head Weight (lb)
19.Thread nuts onto end of tension rods.
Tighten both nuts evenly to the desired
head weight pressure suitable for your
menu. Tightening the nuts further
Flush/ 0
1 ‐2
3‐4
+11
7‐9
4‐7
<2
(compressing springs), will decrease the
pressure applied to the cooking surface
in the down position. See Fig. 17.
5
GTS12‐3R & GTS12‐4R
Threads showing (X) Head Weight (lb)
Flush/ 0‐2
+11
8‐9
5‐6
3‐4
3‐4
5
6
Fig. 17
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20. Reinstall the tension rod cover and
tighten screws. Fig. 18
21. Check range of motion as shown in
Fig. 19. The assembly should lock at the
90˚ and 47˚ positions. Assembly should
release from locked positions when
handles are squeezed together. Do not
force unit down, it should lower under its
own weight when the handles are
squeezed. The cooking surface of the
griddle top head assembly should just
lightly touch the griddle surface of the
bottom plate when the assembly is in the
down position.
Fig. 18
22. Repeat proceeding steps as needed for
each griddle top head assembly.
Fig. 19
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ELECTRICAL CONNECTIONS
Electrical and grounding connections must comply with the
applicable portions of the National Electrical Code and/or other local electrical
codes.
Disconnect the electrical power to the griddle and follow lockout /
tagout procedures.
Since the griddle top is not fused, you must connect to a fused circuit equipped with a
suitable disconnecting means as required by local authorities.
Electrical Connections
1. Remove the small junction box cover plate on the back of the unit. This exposes the
GTS clamshell griddle line leads.
2. Select a suitable knockout on the sides or bottom of the junction box.
3. Connect the griddle’s line leads to the supply wires with factory supplied wire connectors as shown
in the applicable wiring diagrams.
4. Push the excess wire into the junction box and replace the cover plate. Never operate griddle
without cover in place.
ELECTRICAL SPECIFICATIONS
1 Phase
Model No
Description
Voltage
Power
Draw
GTS12‐1
GTS12‐2
208 V
240 V
208 V
240 V
3.6 kW
3.6 kW
3.6 kW
3.6 kW
17.3 A
Front Grease
Trough Models
15 A
17.3 A
15 A
GTS12‐3R
GTS12‐4R
Rear Grease
Trough Models
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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES
1. Thermostat set too low. Turn to higher setting
2. High limit cutoff switch is tripped – depress reset button.
3. If power switch is not illuminated. Check breaker panel.
4. If power switch is not illuminated, check if main power
supply is disconnected (Call for service).
Heat does not come on
when power switch is
turned ON
5. Problem with heating element, thermostat or power
switch. (Call for service)
1. Power switch not in the ON position.
Heat does not come on
2. High limit cutoff switch is tripped – depress reset button.
when thermostat is turned 3. Power not supplied to unit. Check breaker panel.
ON
4. Main power supply disconnected (Call for service).
5. Problem with heating element, thermostat or power
switch. (Call for service)
1. Lift by lower handle only. Do not squeeze upper and lower
handles together when raising.
2. Not raising high enough. Unit will only lock at the 47˚ and
90˚ position.
Unit will not lock or
remain in the raised
position.
3. Problem with locking mechanism or handles (Call for
service)
Unit will not lower from
the raised or locked
position
1. Lift slightly (to take weight off) then squeeze the upper
and lower handles together while lowering the unit.
2. Problem with locking mechanism (Call for service)
Unit will not raise from the
cooking or lowered
position
1. Problem with locking mechanism (Call for service)
1. Temperature set too low.
2. Food not cooked for long enough time.
3. Cooking surface not touching or partially touching food
when in the lowered position. Tension springs need to be
adjusted (Call for service)
Food under-cooked
1. Temperature set too high.
2. Food cooked for too long of a time.
3. Cooking surface pressing down too hard when in the
lowered position. Tension springs need to be adjusted
(Call for service)
Food over-cooked
1. Cooking surface pressing down too hard when in the
lowered position. Tension springs need to be adjusted
(Call for service)
Food is being crushed
1. Temperature set too high or too low.
Food sticks to cooking
surface
2. Cooking surface needs to be cleaned.
3. Cooking surface not covered with enough cooking oil.
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ACCESSORIES
GTS12 ELECTRIC GRIDDLE TEFLON WRAP KIT INSTALLATION
The griddle and its
Use care when
Teflon Sheet Sleeve
parts are hot.
operating, cleaning or servicing the
griddle.
Teflon Bracket
1. Clean off platen using soft cloth, water
and mild soap solution.
2. Slide the Teflon bracket (#944503) into
the sleeve of the Teflon sheet as shown in
fig. 20.
4. Raise the platen to the 47° locked
position. Drape the Teflon sheet
(#944505) from the right side of the
platen by hooking the front and back of
the Teflon bracket to the Teflon retaining
pins. See fig. 21.
Fig. 20
Fig. 21
Fig. 22
Teflon Retaining Pin
5. Pull the Teflon sheet from the right side
around the face of the platen cooking
surface to the left side.
6. Pull the Teflon sheet tight and ensure the
cooking surface of the platen is completely
covered by the Teflon sheet.
7. Secure the Teflon sheet to the left side of
the platen with the two Teflon clips
(#944504). See fig. 22.
GTS12 units that were shipped
before March 2013 utilize a different Teflon sheet
(#498852-1) and mounting system (two bars
#498852-2 and three springs 498852-3).
Teflon Clip
CARE AND CLEANING OF TEFLON WRAP
1. In between cooking runs and during idle
Periods, the Teflon sheet should be wiped
off with water and a clean soft cloth.
2. After each day the Teflon sheet should be
removed from the platen(s), disassembled
and placed in water with mild soap
solution (no abrasive or harsh chemical
cleaners should be used). Gently wash
both sides of the Teflon sheet and the
hardware with the soft clean cloth in the
mild soap solution.
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3. Using water, rinse the Teflon sheet and hardware thoroughly on both sides.
4. Dry the Teflon sheet and hardware using a clean soft cloth.
5. Before reassembling the Teflon sheet to the platen, clean the platen as described in Care and
Cleaning section.
GTS12 ELECTRIC GRIDDLE PLATE STABILIZER
Slide plate stabilizer (fig. 23) onto the bottom handle as shown in fig. 24.
Fig. 23
Fig. 24
GTS12 ELECTRIC GRIDDLE PLATE GAP ADJUSTER
Slide plate gap adjuster (fig.25) onto the bottom handle as shown in figure 26.
Fig. 25
Fig. 26
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NOTES
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