These symbols are intended to alert the user to the presence of
important operating and maintenance instructions in the manual
accompanying the appliance.
RETAIN THIS MANUAL FOR FUTURE REFERENCE
NOTICE
Using any part other than genuine Star factory supplied parts relieves the
manufacturer of all liability.
Star reserves the right to change specications and product design without
notice. Such revisions do not entitle the buyer to corresponding changes,
improvements, additions or replacements for previously purchased
equipment.
Due to periodic changes in designs, methods, procedures, policies and
regulations, the specications contained in this sheet are subject to change
without notice. While Star International Holdings Inc., Company exercises
good faith efforts to provide information that is accurate, we are not
responsible for errors or omissions in information provided or conclusions
reached as a result of using the specications. By using the information
provided, the user assumes all risks in connection with such use.
MAINTENANCE AND REPAIRS
Contact your local authorized service agent for service or required maintenance.
Please record the model number, serial number, voltage and purchase date in the area below and have it ready when
you call to ensure a faster service.
SAFETY SYMBOL
Model No.
Serial No.
Voltage
Purchase Date
Business8:00 am to 4:30 p.m. Central Standard Time
Hours:
Mailing Address: Star International Holdings Inc., Company
10 Sunnen Drive
St. Louis, MO 63143
U.S.A
2
Page 3
PRODUCT IDENTIFICATION
Star Manufacturing International, Inc. Two Sided Grills
Models:
GR28I-240V-Smooth Iron Platens without Timers
GR28I-240VC-Smooth Iron Platens without Timers, Canadian
GR28IT-240V-Smooth Iron Platens with 2 Timers
GR28IT-240VC-Smooth Iron Platens with 2 Timers, Canadian
GR28ITGS-240V-Iron Platens, 1 Grooved & 1 Smooth Top, Smooth Bottom with 2 Timers
GR28ITGS-240VC-Iron Platens, 1 Grooved & 1 Smooth Top, Smooth Bottom with 2 Timers, Canadian
GR28SPTI-240V-Smooth Iron Platens with 2 Timers
GR28IEA-240V-Smooth Iron Plattens with Electronic Controls
CG28I-240V-Grooved Iron Platens without Timers
CG28I-240VC-Grooved Iron Platens without Timers, Canadian
CG28IT-240V-Grooved Iron Platens with 2 Timers
CG28IT-240VC-Grooved Iron Platens with 2 Timers, Canadian
CG28IGT-240V-Iron Platens, Grooved Top and Smooth Bottom without Timers
CG28IGT-240VC-Iron Platens, Grooved Top and Smooth Bottom without Timers, Canadian
CG28ITGT-240V-Iron Platens, Grooved Top and Smooth Bottom with 2 Timers
CG28ITGT-240VC Iron Platens, Grooved Top and Smooth Bottom with 2 Timers, Canadian
CG28SPTI-240V-Grooved Iron Platens with 2 Timers
CG28IEA-240V-Grooved Iron Platens with Electornic Controls
CG28IEGTA240V-Grooved Iron Bottom Platen, Smooth Top Platens, with Electronic Controls
3
Page 4
CAUTION
WARNING
GENERAL INSTALLATION DATA
This equipment is designed and sold for commercial use only by personnel trained and experienced
in its operation and is not sold for consumer use in and around the home nor for use directly by the
general public in food service locations.
Before using your new equipment, read and understand all the instructions & labels associated with
the unit prior to putting it into operation. Make sure all people associated with its use understand the
units operation & safety before they use the unit.
All shipping containers should be checked for freight damage both visible and concealed.
This unit has been tested and carefully packaged to insure delivery of your unit in perfect
condition. If equipment is received in damaged condition, either apparent or concealed, a
claim must be made with the delivering carrier.
Concealed damage or loss - if damage or loss is not apparent until after equipment is
unpacked, a request for inspection of concealed damage must be made with carrier within
15 days. Be certain to retain all contents plus external and internal packaging materials for
inspection. The carrier will make an inspection and will supply necessary claim forms.
Ventilation and Clearances
The installation of any components such as a vent hood, grease extractors, and/or re
extinguishing systems, must conform to their applicable nationally recognized installation
standards and/or local building codes.
Electrical Connection
Before making any electrical connection be sure to read data plate which is located at the
bottom of the unit.
WARNING
Electrical Grounding Instructions
This unit is equipped with a 3-prong (grounding) plug for your protection against shock
hazard and must be plugged directly into a properly grounded 3-prong receptacle.
DO NOT CUT OR REMOVE THIS PLUG OR GROUNDING PRONG FROM THE PLUG.
CONNECT/PLUG UNIT INTO DEDICATED A.C LINE ONLY SPECIFIED ON THE DATA PLATE
Level unit using the adjustable feet under the unit (approximately 1/2" adjustment).
Before using the unit for the rst time, clean and heat for approximately 30 minutes. The grill may
emit a small amount of smoke as the cooking surfaces reach 300-350°F. Do not be alarmed, as
the smoke is caused by oils associated with the manufacturing process and will stop when the grill
reaches 400°F.
Seasoning The Cooking Surfaces
First Time Seasoning
Follow your company/corporate guidelines for seasoning cooking surfaces or
1. Bring the grill to 300°F and leave it on while doing the next three steps.
2. Brush the cooking surfaces with a release agent. If using an aerosol agent,
rst apply into a cup and then brush onto cooking surface.
3. Let sit for 20 minutes, and then wipe clean using a warm damp cloth.
Daily Seasoning
The grill should not require much seasoning while in use. In most cases, brush a light coating of the
baking release agent in the morning and occasionally throughout the day will be enough to prevent
any sticking. It is not necessary to spray before grilling each item.
MANUAL CONTROL OPERATION
Setting The Temperature
The thermostat control knob is used to set the temperature to your requirements. The maximum set
point is 550°F (288°C), the minimum set point is 175°F (79°C). See Knob Settings.
Setting The Timer (Timer Models Only)
(9 MIN. 59 SEC. MAX)
The timer may be factory pre-set. If changes are required follow these simple steps:
1. To increase time, press and hold the (UP) button.
The Start/Stop button can now be used to increase the cooking time.
2. To decrease time, press and hold the (DOWN) button.
The Start/Stop button can now be used to decrease cooking time.
The switch turns the unit on and off. The switch has three positions:
With the switch in this position, both top and bottom platens will heat.
With the switch in this position, neither platen will heat.
With the switch in this position only bottom platen will heat.
5
Page 6
Daily Operation
Always allow 30 minutes of preheat time before loading the unit with product. Failure to allow
sufcient preheat time will result in unsatisfactory cooking of the rst load.
Check the power cord to insure that it is plugged into a proper outlet.
Check that the switch and thermostat control are turned on.
Set the unit's ON/OFF rocker switch to desired position.
Set the thermostat control knob to desired temperature.
Operating Hints And Safety
Disconnect power to the unit with the switch at the end of each day of operation.
Do not leave the unit in operation without an attendant.
Turn thermostat down to 200°F (93°C) during idle periods. It will take only a few minutes to regain
operating temperature.
Use spatula to push excess grease into grease drawer after each load of food is cooked. This will
reduce smoking of hot grease and carbonizing.
Do not leave the unit at high temperature when not in use or during idle periods. This will cause food
particles and grease lm to carbonize.
"Season" cooking surfaces with non-salted vegetable oil to reduce product sticking.
Monthly Lubrication/Inspection
Apply two (2) drops of non-toxic mineral or vegetable oil to counter balance shoulder rivets and plastic
spacers.
Check and clean brass rollers to make sure they are rolling and not sliding on the cam
surfaces of the counterbalance.
Check the bolts, screws and nuts, tighten if necessary.
Cleaning
Begin cleaning procedure by using the operating procedures within your organization, or follow the
steps below:
1. If particles adhere to the cooking surface during the day, scrape them off with a spatula.
NOTE: It is best not to let food cook onto the grill, as food build-up on the grill will increase
sticking and smoking. In addition, carbon may build up on the grill surface and reduce the
cooking efciency.
Carbon Buildup: A black matter that forms on or near the cooking surface. Generally this is a
combination of: releasing agents, oils, food particles etc. ,that have cooked to the surface. After a
period of time without cleaning, this will reduce performance and material may start aking off. When
that happens, follow the "Carbon Cleaning" procedures.
2. At the end of the day, wipe down all surfaces with a warm, damp cloth and mild detergent, then
dry.
Carbon Cleaning
When carbon build up occurs, use a carbon removal agent (safe for aluminum surfaces) according
to the instructions provided with the cleaner. When this process is complete, you must re-season the
grill according to your company/corporate guidelines, or the seasoning instructions in this manual.
DO NOT IMMERSE OR LET THE UNIT STAND IN WATER.
6
Page 7
DO NOT HOSE DOWN THE UNIT OR THE TABLE/COUNTER IF THE UNIT IS ON THE TABLE/
COUNTER.
CAUTION
KEEP AWAY FROM RUNNING WATER.
DO NOT USE SHARP OBJECTS TO REMOVE CARBON BUILD-UP.
DO NOT USE ICE ON THE COOKING SURFACE!
BEFORE CLEANING MAKE SURE POWER IS TURNED OFF, UNIT IS UNPLUGGED AND IS
NOT TOO HOT.
While holding top lid with one hand, apply only cleaners which are safe for aluminum
and iron surfaces. Wipe with clean sponge or towel until unit is clean.
DO NOT SPLASH FRONT CONTROL PANEL!
DO NOT SPLASH FLEX CONDUIT CONNECTING TOP AND BOTTOM OF THE UNIT.
Remove and empty to clean grease catcher drawer as required using mild detergent and water.
WARNING
Do not use ice or cold water to clean the cooking surfaces when the unit is hot.
The surfaces are cast aluminum or cast iron and may crack or deform under the shock of
rapid temperature change.
Operation Troubleshooting
1. Unit not heating.
A. Check if unit is plugged in correct receptacle.
B. Check incoming power line.
C. Check that the switch is in correct position.
D. Check that thermostat is set to proper temperature.
2. Top platen not heating.
A. Check that the ON/OFF switch is in correct position.
3. Counterbalance roller not rolling.
A. Clean rollers.
If unit still does not operate contact the factory or one of its representatives or a local service company
for service or required maintenance.
7
Page 8
ELECTRONIC CONTROL OPERATION
Preset Times And Temperatures
If adjustments are required, please refer to the time or temperature programming section in this
manual.
°F/°C CONVERSION
To change the temperature display from °F to °C or from °C to °F, hold the TEMP button while the
unit is turned off. While holding the TEMP button, turn the unit on. The display will be the changed
temperature mode. To change back, repeat the procedure.
Operating Instructions
1. Turn the unit on by placing the switch in the ON position. The HEAT ON indicator, program number
and display will ash indicating the unit is heating. When the preset temperature is reached, the
heating light, display and program light indicator will stop ashing followed by 3 beeps. (Initial
startup heating time is approximately 30 minutes).
2. Place product on the bottom cooking surface of the unit and close the lids.
3. Press the PROGRAM button and let the displayed time count down to "0" at which time the unit
will beep. To turn off the beeper, press the PROGRAM button again.
4. Raise the lid until it engages into the rst detent and remove food. Using a spatula, scrape residue
into the grease catcher tray.
NOTE: Metal utensils may be used, however, using nonmetal utensils will prolong the life of the
1. The preset time will ash until the preset temperature is reached.
2. When the control reaches the preset temperature, time display, the HEAT ON indicator and program
indicator will stop ashing and the alarm will beep three times.
Temperature:
1. To view the actual temperature, press and hold the TEMP button. The display will read "Lo" if the
temperature is below 135°C (273°F) and "Hi" if the temperature is above 300°C (573°F).
To Program Time and Temperature:
1. Press and hold TEMP (actual temperature displays).
2. While holding TEMP, press and hold any program button on the left for one second. The LED above
the program number will light and the display will read "_ _ _ _." Enter the four-digit security code
sequence: 4, 3, 2, 1. The security code will not show on the display. Once the correct sequence has
been entered, the preset time will be displayed and the LED for that program will begin to ash.
3. Set the time with the "+ or -" buttons.
4. Press the TEMP button to save the time.
5. The preset temperature will now be displayed.
6. Set the desired temperature for this program using the "+ or -" buttons.
7. Press the TEMP button to save the temperature and to exit the programming mode for this
program. The LED will stop ashing but will remain lit.
8. Press any other program button within 15 seconds to continue programming without
re-entering the security code.
9. While programming a program (LED is ashing), if no input is received for 15 seconds the unit will
revert to normal operation and the security code must be re-entered.
NOTE: Temperature settings are done with the Left side buttons only. The time settings
programmed on the left buttons will also be programmed onto the Right side. See the next
section to make time changes to the Right side only. Each programming change must be
saved by pressing the TEMP button!
8
Page 9
Right Side (Timer only):
1. To change the time on right, press and hold the TEMP button, then press and hold any
program button on the right for one second. The LED above the program button will light
and the right display will read "_ _ _ _." Enter the four-digit security code sequence: 4, 3,
2, 1. The security code will not show on display. Once the correct sequence has been entered,
the preset time will be displayed and the LED for that program will begin to ash.
unit will revert to normal operation and the security code must be re-entered.
Operation:
1. Pressing any program button (1-4) will start the timer countdown and display the remaining preset
time. The LED for the appropriate program will be lit during the countdown and will remain lit until
another program is selected.
2. When the display reaches "00:00", the buzzer will sound and the digits will ash.
3. Press the program button to silence the buzzer and return the readout to programmed time.
4. The right and left sides will operate independently of each other. Both timers can be in operation
at the same time. The "00:00" display will show which side is timed out.
NOTE: Metal utensils may be used, however, using nonmetal utensils will prolong the life
of the cooking surface.
5. Turn the unit off when it is not in use.
9
Page 10
2M-4497-2 6/1312
The foregoing warranty is in lieu of any and all other warranties expressed or implied and constitutes the entire warranty.
FOR ASSISTANCE
Should you need any assistance regarding the Operation or Maintenance of any Star equipment; write, phone, fax or email our Service Department.
In all correspondence mention the Model number and the Serial number of your unit, and the voltage or type of gas you are using.
This unit has been tested for proper operation before leaving our plant to insure delivery of your unit in perfect condition. However, there are instances in which
the unit may be damaged in transit. In the event you discover any type of damage to your product upon receipt, you must immediately contact the transportation
company who delivered the item to you and initiate your claim with same. If this procedure is not followed, it may affect the warranty status of the unit.
LIMITED EQUIPMENT WARRANTY
All workmanship and material in Star products have a one (1) year limited warranty on parts & labor in the United States and Canada. Such warranty is limited
to the original purchaser only and shall be effective from the date the equipment is placed in service. Star's obligation under this warranty is limited to the repair
of defects without charge, by the factory authorized service agency or one of its sub-agencies. Models that are considered portable (see below) should be taken
to the closest Star service agency, transportation prepaid.
> Star will not assume any responsibility for loss of revenue.
> On all shipments outside the United States and Canada, see International Warranty.
* The warranty period for the Ultra-Max, Hot Plates, Griddles, Charbroilers is (3) years parts & labor.
* The warranty period for the Star-Max, Charbroilers, Griddles, Hot Plates, Fryers & Finishing Oven is (2) years parts & labor.
* The warranty period for the JetStar six (6) ounce & Super JetStar eight (8) ounce series popcorn machines is two (2) years.
* The warranty period for the Chrome-Max Griddles is ve (5) years on the griddle surface. See detailed warranty provided with unit.
* The warranty period for Teon/Dura-Tec coatings is one year under normal use and reasonable care. This warranty does not apply if damage occurs to
Teon/Dura-Tec coatings from improper cleaning, maintenance, use of metallic utensils, or abrasive cleaners, abrasive pads, product identiers and
point-of-sale attachments, or any other non-food object tha comes in continuous contact with the roller coating. This warranty does not apply to the
“non-stick” properties of such materials.
> This warranty does not apply to "Special Products" but to regular catalog items only. Star's warranty on "Special Products" is six (6) months on parts
and ninety (90) days on labor.
> This warranty does not apply to any item that is disassembled or tampered with for any purpose other than repair by a Star Authorized Service Center or
the Service Center's sub-agency.
> This warranty does not apply if damage occurs from improper installation, misuse, wrong voltage, wrong gas or operated contrary to the Installation and
Operating instructions.
> This warranty is not valid on Conveyor Ovens unless a "start-up/check-out" has been performed by a Factory Authorized Technician.
PARTS WARRANTY
Parts that are sold to repair out of warranty equipment are warranted for ninety (90) days. The part only is warranted, the labor to replace the part is NOT warranted.
SERVICES NOT COVERED BY WARRANTY
PORTABLE EQUIPMENT
Star will not honor service bills that include travel time and mileage charges for servicing any products considered "Portable" including items listed below.
These products should be taken to the Service Agency for repair:
1. Travel time and mileage rendered beyond the 50 mile radius limit
2. Mileage and travel time on portable equipment (see below)
3. Labor to replace such items that can be replaced easily during a daily cleaning
routine, ie; removable kettles on fryers, knobs, grease drawers on griddles, etc.
4. Installation of equipment
5. Damages due to improper installation
6. Damages from abuse or misuse
7. Operated contrary to the Operating and Installation Instructions
8. Cleaning of equipment
9. Seasoning of griddle plates
10. Voltage conversions
11. Gas conversions
12. Pilot light adjustment
13. Miscellaneous adjustments
14. Thermostat calibration and by-pass adjustment
15. Resetting of circuit breakers or safety controls or reset buttons
16. Replacement of bulbs
17. Replacement of fuses
18. Repair of damage created during transit, delivery, &
installation OR created by acts of God
* The Model 510FD, 510FF Fryer.
* The Model 526TOA Toaster Oven.
* The Model J4R, 4 oz. Popcorn Machine.
* The Model 518CMA & 526CMA Cheese Melter.
* The Model 12MC & 15MC & 18MCP Hot Food Merchandisers.
* The Model 12NCPW & 15NCPW Nacho Chip/Popcorn Warmer.
* All Hot Dog Equipment except Roller Grills & Drawer Bun Warmers.
* All Nacho Cheese Warmers except Model 11WLA Series Nacho Cheese Warmer.
* All Condiment Dispensers except the Model HPD & SPD Series Dispenser.
* All Specialty Food Warmers except Model 130R, 11RW Series, and 11WSA Series.
* All QCS/RCS Series Toasters except Model QCS3 & RCS3 Series.
* All Fast Steamer Models except Direct Connect Series.
10
Page 11
(ELEMENTO MAS BAJO)
BOTTOM ELEMENT
(ELEMENTO MAS ALTO)
TOP ELEMENT
WIRE NO PART NO.
(HILO NO.) (PARTE NO.)
QTY.
(CANTIDAD)
4 D9-GR0058 1
2,5 D9-GR0059 1
1,8 D9-GR0060 1
3,6,7 D9-GR0064 1
10 D9-GR0057 1
9 D9-GR0065 1
11 D9-GR0106 1
12 D9-GR0107 1
(ELEMENTO MAS ALTO)
TOP ELEMENT
(ELEMENTO MAS BAJO)
BOTTOM ELEMENT
MATERIAL
DR. CK.DATE
FINISH
MODEL NO.
TITLE
PART NO.
STAR MFG. INTERNATIONAL, INC.
10 SUNNEN DRIVE ST. LOUIS, MO 63143
LIMITS UNLESS OTHERWISE NOTED
FRACTIONS 1/64 DECIMALS .005
-SK-1709
7-05-99
WIRE DIAGRAM 240V 7200W UL W/TIMER
GR/CG28IT-240V
CG28ITGT-240V
11
Page 12
(ELEMENTO MAS BAJO)
BOTTOM ELEMENT
(ELEMENTO MAS ALTO)
TOP ELEMENT
T-STAT
FRONT CONTROL PANEL
PILOT
LIGHT
(BLOQUE TERMINAL)
TERM BLOCK
REAR PANEL
1
3
2
TOP ELEMENT
(ELEMENTO MAS ALTO)
BOTTOM ELEMENT
(ELEMENTO MAS BAJO)
(BLANCO)
GREEN
(VERDE)
NEMA L6-30 P PLUG
WHITE
15
14
REAR PANEL
(BLOQUE TERMINAL)
TERM BLOCK
T-STAT
PILOT
LIGHT
FRONT CONTROL PANEL
3
1
2
(NEGRO)
BLACK
18
20
230V UNITS
INLET IEC 320 16A
19
18
INLET IEC 320 16A
20
19
240V UNITS
N
L
G
N
L
G
WIRE NO PART NO.
(HILO NO.) (PARTE NO.)
QTY.
(CANTIDAD)
1 D9-GR0103 1
2 D9-GR0104 1
3 D9-GR0105 1
14 D9-GR0106 1
15 D9-GR0107 1
3,6,7 D9-GR0064 1
1,8 D9-GR0060 1
2,5 D9-GR0059 1
WIRE NO PART NO.
(HILO NO.) (PARTE NO.)
20 D9-GR0252 2
19 D9-GR0251 2
18 D9-GR0250 2
9 D9-GR0065 1
10 D9-GR0057 1
4 D9-GR0058 1
(CANTIDAD)
QTY.
MODEL:
GR-CG28I-230/240V
THIS DRAWING CONTAINS INFORMATION CONFIDENTIAL TO STAR MFG. INT'L. INC.
NO REPRODUCTION OR DISCLOSURE OF ITS CONTENTS IS PERMITTED.
STAR MANUFACTURING INTERNATIONAL INC.
SK1710 Rev B
8/09/2004
12
Page 13
4
8
6 2
1 0
B
A
C
D
SENSOR - RIGHT
(SENSORIO)
BOTTOM ELEMENT
(ELEMENTO MAS BAJO)
TOP ELEMENT
RIGHT
(ELEMENT MAS ALTO)
GREEN / YELLOW
STRIPE
BROWN
BLUE
BS 1363A PLUG
(13 AMP)
E4
E3
E1
E5E6
1
3
2
15
16
13
14
6
5
3
4
2
1
4
10
9
10
9
8
7
7
8
11
12
11
12
14
15
13
16
REAR OF CONTROLLER
E2
E11
E12
SENSOR - LEFT
(SENSORIO)
TOP ELEMENT
LEFT
(ELEMENT MAS ALTO)
TRANSFORMER
(TRANSFORMADOR)
RELAY
(RELE)
TERMINAL BLOCK
(BLOQUE TERMINAL)
FOR REFERENCE
WIRING DIAGRAM IS SHOWN AS UNIT IS ASSEMBLED
WITH THE BOTTOM PLATE REMOVED. THE TOP
DESCRIPTIONS ARE THEIR POSITIONS WHEN UPRIGHT.
1 0
8
4
6 2
SWITCH
(INTERRUPTOR)
5
6
E7
INLET IEC 320 16A
230V UNITS
18
19
20
G
L
N
4
8
6 2
1 0
B
A
C
D
SENSOR - RIGHT
(SENSORIO)
BOTTOM ELEMENT
(ELEMENTO MAS BAJO)
TOP ELEMENT
RIGHT
(ELEMENT MAS ALTO)
E4
E3
E1
E5E6
1
3
2
15
16
13
14
6
5
3
4
2
1
4
10
9
10
9
8
7
7
8
11
12
11
12
14
15
13
16
REAR OF CONTROLLER
E2
E11
E12
SENSOR - LEFT
(SENSORIO)
TOP ELEMENT
LEFT
(ELEMENT MAS ALTO)
TRANSFORMER
(TRANSFORMADOR)
RELAY
(RELE)
TERMINAL BLOCK
(BLOQUE TERMINAL)
1 0
8
4
6 2
SWITCH
(INTERRUPTOR)
5
6
E7
MODEL:
GR-CG28SPTI-230/240V
THIS DRAWING CONTAINS INFORMATION CONFIDENTIAL TO STAR MFG. INT'L. INC.
NO REPRODUCTION OR DISCLOSURE OF ITS CONTENTS IS PERMITTED.
STAR MANUFACTURING INTERNATIONAL INC.
SK2169 Rev -
1/20/2006
13
Page 14
STAR MANUFACTURING INTERNATIONAL, INC.
SK2183 REV. B9-14-2011
MODEL: CG/GR28_TOP HOUSING ASSY
CERTAIN INSTANCES MAY NOT BE AVAILABLE OR
MAY VARY SLIGHTLY FROM ILLUSTRATION SHOWN.