Garland MWG-9501 Operation Manual Download Page 5

 5 

When two sided cooking, the area between the upper 
platen and the griddle plate should be regarded as a 
“danger zone”. During two sided cooking the operator 
must not be within this danger zone. When used as a 
flat grill, then this area is no longer a danger zone, the 
platens do not move. 
For whatever reason, be it cleaning, maintenance, 
normal operation, any exposed person must use 
extreme caution if within this danger zone. 

 

If for any reason the grill is required to be brought to 
an immediate stop, this is achieved by turning the 
power switch, which is marked start and stop, and is 
located on the front panel adjacent to the grill control, 
to the stop position. 
 
In two side cooking the upper platen remains in the 
lowered position by nature of it’s own weight. It is not 
locked down. It can be raised by lifting of the handle 
on the front of the platen, which pivots the platen about 
its rear mounting point. 
 
The clamshell grill may during its operation emit 
airborne noise equivalent to a continuous A weighted 
sound pressure level of 73dB(A). 
 
The clamshell grill must only be used for single and 
two sided cooking of foodstuffs in a McDonald’s store 
and must not be used for any other purpose. 
 
WARNING: To avoid serious personal injury: 
 
DO NOT attempt to repair or replace any part of the 

clamshell grill unless all main power 
supplies to the grill have been disconnected. 

 
USE EXTREME CAUTION in setting up, operating 
and cleaning the clamshell grill to avoid coming in 
contact with hot grill surfaces or hot grease. Suitable 
protective clothing should be worn to prevent the risk 
of burns. 
 
WARNING: This appliance must not be cleaned with a 

water jet. DO NOT apply ice to a HOT grill 
surface.
 

 
NOTE:  All warning labels and markings on the grill, 

which call attention to further dangers and 
necessary precautions. 

 

HAZARD COMMUNICATION STANDARD, (HCS) - 
The procedures in this manual include the use of 
chemical products. These chemical products will be 
printed in bold face, followed by the abbreviation 
(HCS) in the text portion of the procedure. See the 
Hazard Communication Standard, (HCS) manual for 
the appropriate Material Safety Data Sheet(s), 
(MSDS). 
 
 

WARNING:  After turning the master power switch to 

the START position, the grill will go 
through an initialization process. If the 
upper platens are in the lowered position 
they will return to their raised upper 
position. This movement takes 
approximately 8 seconds. 

 
LIGHTING INSTRUCTIONS: 

 
1. Ensure that the flexible gas hose is connected to 

the grill and the power cords are plugged into the 
receptacles. 

 
2. Turn the main power switch ON and allow the 

controls to go through the power-up self-check.  
Once the control(s) panel displays the word “OFF”, 
the unit is ready to begin the heating process. 

 
3. By selecting any of the menu items (pressing the 

menu button) the controls will automatically initiate 
the heating cycle appropriate for the menu item 
selected.  The burner(s) should light and heat until 
the temperature specified by the menu item has 
been obtained. 

 
4.  If ignition of the burner does not occur on the first 

trial, the second from the bottom indicator light will 
flash amber.   If the burner(s) does not light within 
four trials for ignition, the control(s) will display a 
flashing warning “IGNITION FAILURE”, the flashing 
amber light will turn to solid red and an audible 
alarm will  sound. If this occurs, turn the main 
power switch off, wait  5 minutes, then repeat steps 
2 and 3.   

 

SHUT DOWN INSTRUCTIONS: 

 
1. To shut down unit at any time, switch the main 

power switch to off (non-lit) position. 

 
2. For extended shut down periods, switch main 

power switch to off position, disconnect unit from 
gas supply line and unplug electrical connections. 

 
MAINTENANCE - 
the platen support arms carriage 
block bearing bushes, the platen adjuster nuts, the 
platen support (shoulder) bolt and the cam follower 
should be checked annually for wear. Should there be 
any noticeable play in the bearing bushes and any 
visible wear on the platen adjuster nuts, platen support 
bolts or cam follower, then they must be replaced. 
 
MAINTENANCE - the audible alarm that sounds on 
platen lowering, platen raising and 5 seconds before 
the completion of the cooking cycle is to advise the 
operator that the platen is about to move. The function 
of this device may be tested by pushing the left hand 
CANCEL button. If no sound is heard, ensure that the 
alarm volume is not set to low in SYSTEM SETUP. If 

Summary of Contents for MWG-9501

Page 1: ...VICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE INJURY OR DEATH READ THE INSTALLATION OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT KEEP APPLIANCE AREA FREE AND CLEAR FROM COMBUSTIBLES PLEASE READ ALL SECTIONS OF THIS MANUAL AND RETAIN FOR FUTURE REFERENCE THIS PRODUCT HAS BEEN CERTIFIED AS COMMERCIAL COOKING EQUIPMENT AND MUST BE INSTALLED BY PROFES...

Page 2: ...L GRILL CONTROLS 16 DESCRIPTION OF GRILL CONTROLS 17 The Master Power Start On Stop Off Switch 17 Indicator Lights 17 Up Arrow Button Two Functions 17 Right Arrow Button Two Functions 17 Program Mode Button Two Functions 17 Menu Button Two Functions 17 Temperature Function Button Two Functions 17 Standby Button Black 18 Cancel Raise Platen Button Green 18 HOW TO NORMAL OPERATING MODES 18 To Cook i...

Page 3: ...re 22 To Add Program a Optional Menu Clam 22 To Add Program Optional Menu Flat 23 To Add Program High Limit Grill 24 To Add Program High Limit Platen 24 CALIBRATION 25 CLEANING AND MAINTENANCE 26 AFTER CLEANING 27 CLEANING AFTER EACH RUN OF PRODUCT 27 TROUBLESHOOTING 27 ERROR MESSAGES 27 CONTROLS OPERATING SEQUENCE 28 TROUBLESHOOTING 30 TEMPERATURE CONVERSION CHART 34 ...

Page 4: ...es or our agents shall not be held liable for any claims of personal injury or consequential damage or loss This warranty gives you specific legal rights and you may have other rights which vary from state to state INTRODUCTION The Garland clamshell grill manufactured exclusively for McDonald s provides a method for efficient two sided cooking while accommodating a variety of products The unit wil...

Page 5: ...ppropriate Material Safety Data Sheet s MSDS WARNING After turning the master power switch to the START position the grill will go through an initialization process If the upper platens are in the lowered position they will return to their raised upper position This movement takes approximately 8 seconds LIGHTING INSTRUCTIONS 1 Ensure that the flexible gas hose is connected to the grill and the po...

Page 6: ...IAL INSTALLATION Slide release material rod through hemmed end of the release material sheet Hook release material rod on brackets located at the rear of the upper platen Release Material Hook Upper Platen Release Material Sheet Release Material Rod side view Holding the bottom of the release material sheet in place gently pull the sheet toward the front of the platen NOTE Make sure release materi...

Page 7: ...7 NOTES ...

Page 8: ...UT SPECIFICATIONS Gas Type Heat Input kW Setting Pressure Manifold Pressure Flow Rate Natural 18 46 20 25 mbar 8 75mbar 1 96 m3 h Propane 18 88 30 37 50 mbar 25 mbar 1 46 kg h MINIMUM CLEARANCES FOR SERVICING TOP FRONT LEFT SIDE RIGHT SIDE REAR mm 600 150 150 150 ELECTRICAL REQUIREMENTS 3N 400V 50Hz kW LOAD AT 400V NOMINAL AMPERES PER LINE 380V NOMINAL AMPS PER LINE 400V MENNEKES PLUG REQUIRED ONE...

Page 9: ...CIFICATIONS Gas Type Heat Input kW Setting Pressure Manifold Pressure Flow Rate Natural 9 23 20 25 mbar 8 75mbar 0 98 m3 h Propane 9 44 30 37 50 mbar 25 mbar 0 73 kg h MINIMUM CLEARANCES FOR SERVICING TOP FRONT LEFT SIDE RIGHT SIDE REAR mm 600 150 150 150 ELECTRICAL REQUIREMENTS 3N 400V 50Hz kW LOAD AT 400V NOMINAL AMPERES PER LINE 380V NOMINAL AMPS PER LINE 400V MENNEKES PLUG REQUIRED ONE 7 WAY S...

Page 10: ...PUT SPECIFICATIONS Gas Type Heat Input kW Setting Pressure Manifold Pressure Flow Rate Natural 18 46 20 25 mbar 8 75mbar 1 96 m3 h Propane 18 88 30 37 50 mbar 25 mbar 1 46 kg h MINIMUM CLEARANCES FOR SERVICING TOP FRONT LEFT SIDE RIGHT SIDE REAR mm 600 150 150 150 ELECTRICAL REQUIREMENTS 3N 400V 50Hz kW LOAD AT 400V NOMINAL AMPERES PER LINE 380V NOMINAL AMPS PER LINE 400V MENNEKES PLUG REQUIRED ON...

Page 11: ...Type Heat Input kW Setting Pressure Manifold Pressure Flow Rate Natural 18 46 20 25 mbar 8 75mbar 1 96 m3 h Propane 18 88 30 37 50 mbar 25 mbar 1 46 kg h MINIMUM CLEARANCES FOR SERVICING TOP FRONT LEFT SIDE RIGHT SIDE REAR mm 600 150 150 150 ELECTRICAL REQUIREMENTS 3N 400V 50Hz kW LOAD AT 400V NOMINAL AMPERES PER LINE 380V NOMINAL AMPS PER LINE 400V MENNEKES PLUG REQUIRED ONE 7 WAY SUPPLY CORD 2 5...

Page 12: ... mbar 8 75mbar 1 96 m3 h Propane 18 88 30 37 50 mbar 25 mbar 1 46 kg h MINIMUM CLEARANCES FOR SERVICING TOP FRONT LEFT SIDE RIGHT SIDE REAR mm 600 150 150 150 ELECTRICAL REQUIREMENTS 3N 400V 50Hz kW LOAD AT 400V NOMINAL AMPERES PER LINE 380V NOMINAL AMPS PER LINE 400V MENNEKES PLUG REQUIRED ONE 7 WAY SUPPLY CORD 8 5 kW L1 12 3 L2 14 6 L3 12 3 L1 10 8 L2 14 9 L3 10 8 TYPE 748 2 2 1 7 PP PP PP PP PP...

Page 13: ...anifold Pressure Flow Rate Natural 18 46 20 25 mbar 8 75mbar 1 96 m3 h Propane 18 88 30 37 50 mbar 25 mbar 1 46 kg h MINIMUM CLEARANCES FOR SERVICING TOP FRONT LEFT SIDE RIGHT SIDE REAR mm 600 150 150 150 ELECTRICAL REQUIREMENTS 3N 400V 50Hz kW LOAD AT 400V NOMINAL AMPERES PER LINE 380V NOMINAL AMPS PER LINE 400V MENNEKES PLUG REQUIRED ONE 7 WAY SUPPLY CORD 8 5 kW L1 12 3 L2 14 6 L3 12 3 L1 10 8 L...

Page 14: ...6 of clearance between the handle on the front of the upper platen and the lower lip of the ventilation system hood The raised position of each platen is adjusted by raising or lowering the upper of the two microswitches limit switches in the rear of the grill The lower microswitch position must not be adjusted Grill plate must be level front to back side to side and diagonally This leveling must ...

Page 15: ... This is to be found on the following page in this manual When the burner is correctly adjusted the alternate rating plate decal must be placed over the existing rating plates to reflect the new category for which the grill is set To change from one gas type to another within the same category High to Low Calorific Value Natural Gas or vice versa change the orifice to that supplied by the Authoriz...

Page 16: ...R LIGHTS MENU BUTTON TEMPERATURE PROGRAM FUNCTION BUTTON PROGRAM MODE BUTTON RIGHT ARROW BUTTON UP ARROW BUTTON WHEN PUSHED SIMULTANEOUSLY CLAM MODELS ONLY CANCEL RAISE PLATEN BUTTON STANDBY BUTTON PROG START ON STOP OFF UPPER REAR IGNITION FRONT COOKING TIME COUNTDOWN START WHEN PUSHED SIMULTANEOUSLY FLAT GRILL COOKING ONLY ...

Page 17: ...play the Remove time Top Temperature Bottom temperature and Gap setting for the menu item displayed Each item will be displayed in the order as stated above After 5 seconds the display will return to the product menu item 2 In the program mode it will change the value of the current cursor digit see RIGHT ARROW button Right Arrow Button Two Functions 1 In the program mode various displayed paramet...

Page 18: ...ll lower to the preset gap and the timing will automatically start 3 When the cook cycle times down to five 5 seconds remaining a pre time out alarm will sound to alert the grill operator 4 When the cooking time has been completed the upper platen will raise and the display will flash REMOVE with an audible alert then remove product per the prescribed method 5 To cancel a cooking cycle press the G...

Page 19: ... the required menu displayed press the UP ARROW button 2 Pressing the UP ARROW button repeatedly will cycle through and display that menu s function time s set temperature s and the gap setting if applicable NOTE The display will return to the menu menu name after five 5 seconds if the UP ARROW button has not been pressed To Clean the Grill 1 PRESS the MENU button to obtain the menu CLEAN MODE The...

Page 20: ... needed to access them 352 352 9 56 21 9 56 21 352 352 352 352 0 18 7 06 0 18 7 06 6 67 0 6 783 6 67 0 6 783 0 18 0 18 0 18 0 18 0 18 0 18 0 18 0 18 6 7 6 7 6 7 6 7 7 03 7 03 81 7 21 81 7 21 352 8 7 352 8 7 0 18 7 06 0 18 7 06 63 7 03 63 7 03 DKUHQKHLW HOVLXV DKUHQKHLW HOVLXV 50 92 80 50 92 80 LJK RZ LJK RZ 352 5 7 21 352 5 7 21 7 03 7 03 81 7 21 81 7 21 5 029 1 5 029 1 50 50 XWR 0DQXDO XWR 0DQXDO...

Page 21: ...PROG button twice to display SYSTEM SETUP 3 PRESS and HOLD the UP ARROW button for ten 10 seconds GAP CALIBRATION will be displayed 4 PRESS the MENU button The hold feature will display OFF 5 HOLD the RIGHT ARROW for ten 10 seconds the OFF WILL FLASH 6 PRESS the UP ARROW to change the safety ON OFF 7 PRESS the PROG button to display SYSTEM SETUP 8 PRESS the RIGHT ARROW button to return to the norm...

Page 22: ...advance the cursor to the right for changing its value 7 PRESS the PROG button to display MENU ITEMS 8 PRESS the RIGHT ARROW button to return to the normal OPERATING MODE To Change Griddle Temperature 1 PRESS and HOLD the PROG button for five 5 seconds Display will flash GC450 and the program version number 2 PRESS the PROG button one time to display MENU ITEMS 3 PRESS the MENU button to display t...

Page 23: ...e right for changing its value Alpha numeric capabilities 24 PRESS the PROG button to display MENU ITEMS 25 PRESS the RIGHT ARROW button to return to the normal OPERATING MODE To Add Program Optional Menu Flat 1 PRESS and HOLD the PROG button for five 5 seconds Display will flash GC450 and the program version number 2 PRESS the PROG button once to display MENU ITEMS 3 PRESS the MENU button to disp...

Page 24: ...e PROG button to display MENU ITEMS 28 PRESS the RIGHT ARROW button to return to the normal OPERATING MODE To Add Program High Limit Grill 1 PRESS and HOLD the PROG button for five 5 seconds Display will flash GC450 and the program version number 2 PRESS the PROG button one time to display MENU ITEMS 3 PRESS the MENU button to display HIGH LIMIT GRILL 4 PRESS the UP ARROW button to change Y or N 5...

Page 25: ... grill plate in the center of the cooking zone Each upper platen has one thermocouple probe in the center Thermocouple Locations FRONT REAR UPPER 14 3 4 7 179mm 375mm 102mm 229mm 5 Select a heat zone display then place the surface probe of the digital pyrometer directly on the grill at the same heat zone 6 Allow at least 10 seconds for the pyrometer to respond and stabilize Note the temperature on...

Page 26: ...emp Grill Cleaner HCS and empty the contents into a suitable container One packet cleans a 3ft grill 7 Firmly attach the McD NO SCRATCH Pad to the pad holder 8 Dip the NO SCRATCH Pad into the grill cleaner 9 Spread a light coating of grill cleaner over the entire platen surface BACK FRONT AND SIDE EDGES of both upper platens DO NOT SCRUB WHILE APPLYING THE PRODUCT 10 After applying the grill clean...

Page 27: ...ed The controller will turn the heater controlled by the malfunctioning probe OFF If the open probe condition should correct itself the control will return to the IDLE MODE CLAM DID NOT GO DOWN Occurs if the platen does not reach the proper position GAP SETTING in 30 seconds You may cancel the message by pressing the TEMP button UPPER PLATEN STUCK Occurs when the controller does not get an upper p...

Page 28: ...LE TEST FOR MAIN BURNER FLAME FOR 7 SECONDS FLAME GAS VALVE OPEN MAIN CONTROL CHECKS GAS VALVE STATUS EVERY 12 SECONDS OPEN CONTROL CHECKS FOR TEMPER ATURE INCREASE Y ES UP TO SET TEMPER ATURE TURN OFF POWER AND MONITOR TEMPER ATURE NO FLAME GAS VALVE CLOSED FLASH SECOND LED FROM BOTTOM AMBER NO CLOSED TURN ZONE LIGHT RED SOUND AL ARM AFTER 5 MINUTES NO CONTINUE HEATING Y ES NO FOURTH TRIAL TURN R...

Page 29: ...uit breakerat service panel is OFF or tripped Reset circuit breaker Call Service Company YES YES NO NO Low internal product temperature s Cook time too short Grill out of calibration Low product quality before cooking Increase cook time Recalibrate grill controller per instructions Use product that meets quality standards Call Service Company NO NO NO YES YES YES ...

Page 30: ...er display reads OFF Call Service Company Reconnect to power supply Reset circuit breaker Press MENU SELECT button NO NO NO YES YES YES Inconsistent or erratic internal product temperatures Carbon build up on grill surface Grill out of calibration Call Service Copm any Clean grill surfaces check grill scraper for sharpness Recalibrate grill controller s per instructions NO NO YES YES ...

Page 31: ...m Upper platen locking pin engaged Press each controller button Does controller beep Pull locking pin out Allow grill to heat until all LED s are green and display stops flashing NO NO Call Service Company NO YES YES YES Controller displays EPROM CORRUPT Press PROG button to reset Was new chip or new version of chip recently installed Call for Service NO YES ...

Page 32: ...Power OFF Controller displays TOO HOT then returns to normal operations Current product selected requires a lower temperature than the previous product Allow grill temperature to fall to selected menu item YES NO One or more heat zones have exceeded the maximium temperature window YES NO Call for Service ...

Page 33: ...rruption Monitor for repetative error Problem persist YES NO Call for Service Controller displays Faulty Element Shorted Probe Power supply to the grill has been interrupted YES Reset the grill by pressing the TEMP button NO Call for Service Check high voltage plugs are secure in recepticle Check circuit breakers not tripped on Service panel ...

Page 34: ... 6 140 F 142 F 144 F 145 F 147 F 149 F 151 F 153 F 154 F 156 F 7 158 F 160 F 162 F 163 F 165 F 167 F 169 F 171 F 172 F 174 F 8 176 F 178 F 180 F 181 F 183 F 185 F 187 F 189 F 190 F 192 F 9 194 F 196 F 198 F 199 F 201 F 203 F 205 F 207 F 208 F 210 F 10 212 F 214 F 216 F 217 F 219 F 221 F 223 F 225 F 226 F 228 F 11 230 F 232 F 234 F 235 F 237 F 239 F 241 F 243 F 244 F 246 F 12 248 F 250 F 252 F 253 ...

Page 35: ...35 NOTES ...

Page 36: ...36 ...

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