APW Wyott | GGM-24H | Product manual | APW Wyott GGM-24H Product manual

APW/WYOTT EQUIPMENT LIMITED WARRANTY
IMPORTANT
FOR FUTURE REFERENCE
Please complete this information and retain
this manual for the life of the equipment.
MODEL # ___________________________
SERIAL # __________________________
DATE PURCHASED __________________
For Warranty Service and/or Parts
this information is required
APW/WYOTT Foodservice Equipment Company warrants its equipment against defects in materials and workmanship, subject to the
following conditions:
This warranty applies to the original owner only and is not assignable.
Should any product fail to function in its intended manner under normal use within the limits defined in this warranty, at the option of
APW/WYOTT such product will be repaired or replaced by APW/WYOTT or its Authorized Service Agency. APW/WYOTT will only
be responsible for charges incurred or service performed by its Authorized Agencies. The use of other than APW/WYOTT Authorized
Service Agencies will void this warranty and APW/WYOTT will not be responsible for such work or any charges associated with same.
The closest APW/WYOTT Authorized Service Agency must be used.
This warranty covers products shipped into the 48 contiguous United States, Hawaii, metropolitan areas of Alaska and Canada. There will
be no labor coverage for equipment located on any island not connected by roadway to the mainland.
TIME PERIOD:
One-year parts, one-year labor, effective from the date of purchase by the original owner. The Authorized Service Agency may, at their
option, require proof of purchase. Parts replaced under this warranty are warranted for the unexpired portion of the original product
warranty only.
EXCEPTIONS:
*Gas/Electric Cookline - Models GCB, GCRB, GF, GGM, GGT, GHP-H, GWW, EBC, EF, EG, EHP, EWW Three (3)
Year Warranty on all component part, except switches and thermostats. (2 additional years on parts only - No labor on second or third
year.)
*Heat Strips - Models FD - Two (2) Year Warranty on element only - No labor second year.
*Glass Windows, Door Seals, Rubber Seals, Light Bulbs, Broiler Briquettes 90 Day Material Only - No labor.
In all cases parts covered by extended warranty will be shipped FOB the factory after the first year.
PORTABLE CARRY-IN PRODUCTS
Equipment weighing over 70 pounds or permanently installed will be serviced on-site as per the terms of this warranty. Equipment weighing 70 pounds or under, and which is not permanently installed i.e., with cord and plug, is considered portable and is subject to the following warranty handling limitations.
If portable equipment fails to operate in its intended manner on the first day of connection, or use, at APW/WYOTT's option or its Authorized Service Agency, it will be serviced on-site or replaced.
From day two through the conclusion of this warranty, portable units must be taken or sent prepaid to the APW/WYOTT Authorized
Service Agency for in-warranty repairs. No mileage or travel charges are allowed on portable units after the first day of use. If the customer wants on-site service they may receive same by paying the travel and mileage charges.
EXCLUSIONS:
The following conditions are not covered by warranty.
*Equipment failure relating to improper installation, improper utility connection or supply and problems due to ventilation.
*Equipment that has not been properly maintained, calibration of controls, adjustments, damage from improper cleaning
and water damaged controls.
*Equipment that has not been used in an appropriate manner, or has been subject to misuse or misapplication, neglect,
abuse, accident, alteration, negligence, damage during transit, delivery or installation, fire, flood, not or act of God.
*Equipment that has had the model number or serial number removed or altered.
If the equipment has been changed, altered, modified or repaired by other than a qualified service technician during or after the warranty
period then the manufacturer shall not be liable for any damages to any person or property which may result from the use of the equipment thereafter.
This warranty does not cover services performed at overtime or premium labor rates. Should service be required at times which normally
involve overtime or premium labor rates, the owner shall be charged for the difference between normal service rates and such premium
rates APW/WYOTT does not assume any liability for extended delays in replacing or repairing any items beyond its control.
PRODUCT MANUAL
Safety Instructions
Installation Instructions
Operation Instructions
Maintenance Instructions
Replacement Parts List
Warranty/Service Information
Gas Griddles
Models: GGT-24H, -36H, -48H
And
Models: GGM-24H, -36H, -48H
(US & Canadian units are convertible and are assembled for Natural Gas)
(European units are not convertible & assembled for the appropriate gas)
!
WARNING
FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHE FLAMMABLE VAPORS
OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
!
WARNING
In all cases the use of other than APW/WYOTT authorized OEM replacement parts will void this warranty.
This equipment is intended for commercial use only. Warranty is void if equipment is installed in other than commercial application.
THE FOREGOING WARRANTY IS IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS AND CONSTITUTES THE ENTIRE LIABILITY OF
APW/WYOTT IN NO EVENT DOES THE LIMITED WARRANTY EXTEND BEYOND THE TERMS STATED HEREIN.
IMPROPER INSTALLATION, OPERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THESE INSTRUCTIONS THOROUGHLY BEFORE
INSTALLING, OPERATING, MAINTAINING OR SERVICING THIS EQUIPMENT.
APW/WYOTT Foodservice Equipment Co.
P.O. Box 1829
Cheyenne, WY 82003
(307) 634-5801
FAX: (307) 637-8071
General Information
P/N 88060-20 02/01
16
1
! CAUTION
These models are designed, built and sold for commercial use. If these models are positioned so the general public can use the equipment, make sure that all cautions, warnings and operating instructions are
clearly posted near each unit so that anyone using the equipment will use it correctly and not injure themselves or harm the equipment.
!
Item
Number
Description
Part
Number
Item
Number
Description
Part
Number
1
Griddle Weldment, -24H
218140-37
20
On—Off Valve
20680-00
-36H
218140-38
21
Elbow, 1/4 CC x 1/8 MPT
20926-15
-48H
218140-39
23
Coupling, 3/4 Pipe x 3”
20926-10
218140-20
24
Plug, 1/8” Sq. Head
20925-17
-36H
218140-21
25
Nipple, 3/4” Closed
20925-92
-48H
218140-22
26
Elbow, 3/4” Black Pipe
20926-11
218131-14
27
Captive Screw
31007-24
-36H
218132-14
28
Captive Screw Retainer
81966-02
-48H
218133-14
29
Captive Screw Receptacle
81966-01
218140-26
30
Elbow, 3/8-27 F x 3/8 CC
20926-12
-36H
218140-27
31
Elbow, 3/8-27 M x 3/8 CC
20926-14
-48H
218140-28
32
Bracket, Orifice Mount
218140-19
218140-23
33
Bracket, Pilot Mount
218140-36
218140-24
34
Pilot Burner
20928-00
Pilot Orifice, Natural
20929-03
WARNING
IMPROPER INSTALLATION, OPERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY
DAMAGE, INJURY OR DEATH. READ THESE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING,
OPERATING, MAINTAINING OR SERVICING THIS EQUIPMENT.
Install per the spacing requirements listed in the installation section of this manual. We strongly recommend
having a competent professional install this equipment. Such a person should be familiar with local gas
regulations. A gas company representative should approve the completed installation.
!
GGM Griddles, Parts Break Down
2
3
Firebox Weldment, -24H
Leg Support, -24H
WARNING
FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE LIQUIDS AND
VAPORS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. KEEP THE AREA FREE AND
CLEAR OF COMBUSTIBLES. (SEE ANZI Z83.14B, 1991)
4
Back Panel, -24H
Instructions to be followed if any one smells gas should be posted in a prominent place. These may be
obtained from the gas supplier.
5
GAS PRESSURE
The appliance and its individual shutoff valve must be disconnected from the gas supply piping system
during any pressure testing of that
system at test pressures in excess of 1/2 psi (3.45 kPa)
The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2
psi (3.45 kPa)
Maintenance and repair should be handled by a factory authorized agent. Before doing any maintenance
or repair, contact APW/Wyott.
!
NOTICE
-36H
-48H
6
7
!
WARNING
SHOCK HAZARD
DO NOT OPEN ANY PANELS THAT REQUIRE THE USE OF TOOLS.
!
WARNING
IMPROPER INSTALLATION, SERVICE, OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE,
INJURY OR DEATH.
!
WARNING
KEEP THE APPLIANCE FREE AND CLEAR FROM ALL COMBUSTIBLE SUBSTANCES. IN THE EVENT
OF GAS ODOR, SHUT UNIT DOWN AT THE MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS
COMPANY OR GAS SUPPLIER FOR SERVICE..
2
Pilot Orifice, L.P.
20929-02
218140-56
35
Thermocouple
14731-03
Safety Pilot Valve
20927-02
218133-13
Drip Trough Weldment
8
Grease Tray Guide, R.H.
300475-08
9
Grease Tray Guide, L.H.
300475-07
37
Screw, #10-32 x 1/2”
81707-00
218131-91
38
Screw, #8-32 x 3/8”
81531-00
20658-50
39
Nut, #10-32
84171-00
Burner, S Shape
20658-55
41
Pipe, 3/4 Black x 23” Long
20926-13
13
Knob
87056-00
42
4” Adjustable Leg
86320-00
14
Manifold Weld., -24H
10
11
The models are designed, built and sold for commercial use. If these models are positioned so the general
public can use the equipment, make sure that all cautions, warnings and operating instructions are clearly
posted near each unit so that anyone using the equipment will use it correctly and not injure themselves or
harm the equipment.
!
Body Side Panel
218140-25
36
This product is intended for commercial use only, not for household use.
CAUTION
Front Panel, -24H
Grease Tray
Burner, U Shape
218140-29
-36H
218140-30
-48H, 1 ea.
218140-31
-48H, 1 ea.
218140-29
15
Pilot Tube, Standing Pilot
218140-45
16
Safety Pilot Tube, -24 & -48
218140-47
-36
218140-48
17
Supply Tube, to Orifice
218140-43
18
Pressure Regulator, Conv.
20666-00
19
Nat. Orifice, #44 @ -24, -48
20668-44
Nat. Orifice, #37 @ -36
20668-37
L.P. Orifice, #54 @ -24, -48
20668-54
L.P. Orifice, #50 @ -36
20668-50
15
Congratulations on your purchase of APW/Wyott commercial cooking or refrigeration equipment. APW/Wyott takes pride in the design and quality of our products. When used as intended and with proper care and maintenance, you will experience years of reliable operation from this equipment. To ensure best results, it is important that you read and follow the
instructions in this manual carefully.
TABLE OF CONTENTS:
Safety Precautions ................................ 3
Specifications ........................................ 4
General Installation Instructions ........... 5
European Installation ............................ 5
Lighting Instructions .............................. 6
Operating Instructions ........................... 7
Cleaning / Maintenance ........................ 7
Service / Repair..................................... 8
Conversion ............................................ 8
Troubleshooting Guide........................ 10
Parts Diagram, GGT ........................... 12
Parts List, GGT ................................... 13
Parts Diagram, GGM .......................... 14
Parts List, GGM................................... 15
Warranty .............................................. 16
LOCATION OF DATA PLATE
The data plate is located on the back side of the front panel.
SAFETY PRECAUTIONS
Before installing and operating this equipment be sure everyone involved in its operation is fully trained and
is aware of all precautions. Accidents and problems can result by a failure to follow fundamental rules and
precautions.
The following words and symbols, found in this manual, alert you to hazards to the operator, service personnel or the equipment. The words are defined as follows.
DANGER
!
THIS SYMBOL WARNS OF IMMINENT HAZARD WHICH WILL RESULT IN SERIOUS INJURY OR
DEATH.
WARNING
!
THIS SYMBOL REFERS TO A POTENTIAL HAZARD OR UNSAFE PRACTICE WHICH COULD RESULT
IN SERIOUS INJURY OR DEATH.
!
CAUTION
This symbol refers to a potential hazard or unsafe practice which may result in minor or moderate injury or
product or property damage.
!
NOTICE
This symbol refers to information that needs special attention or must be fully understood even though not
dangerous.
!
WARNING
DO NOT OBSTRUCT EITHER THE AIR INLET (UNDERNEATH UNIT) OR THE VENTILATION AIR
(BACK OF UNIT). PROVISIONS MUST BE PROVIDED TO PROVIDE AN ADEQUATE AIR SUPPLY TO
THE GRIDDLE.
14
3
NOTICE THE UNIT, WHEN INSTALLED, MUST BE ELECTRICALLY GROUNDED AND COMPLY WITH
LOCAL CODES, OR IN THE ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL CODE
ANSI/NFPA 70-LATEST EDITION.
CANADIAN INSTALLATION MUST COMPLY WITH CSA-STANDARD C.22.2 No. 0 M1982 General Requirements - Canadian Electrical Code, Part II, 109-M1981 - Commercial Cooking Appliances.
NOTICE Local codes regarding installation vary greatly from one area to another. The National Fire Protection Association, Inc. states in its NFPA 96 latest edition that local codes are "authority having jurisdiction"
when it comes to requirements for installation of equipment. Therefore, installations should comply with all
Local codes.
GGT Griddles, Parts Break Down
Item
Number
Description
1
Griddle Weldment, -24H
2
All containers should be examined for damage before and during unloading. The freight carrier has assumed responsibility for its safe transit and delivery. If equipment is received damaged, either apparent or
concealed, a claim must be made with the delivering carrier.
A) Apparent damage or loss must be noted on the freight bill at the time of delivery. It must then be signed
by the carrier representative (Driver). If this is not done, the carrier may refuse the claim. The carrier can
supply the necessary forms.
B) Concealed damage or loss if not apparent until after equipment is uncrated, a request for inspection
must be made to the carrier within 15 days. The carrier should arrange an inspection. Be certain to hold all
contents and packaging material.
Installation and start-up should be performed by a qualified installer who thoroughly read, understands and
follows these instructions.
3
4
5
Item
Number
Description
Part
Number
218140-37
20
BJWA Valve
20001-00
-36H
218140-38
21
Elbow, 1/4 CC x 1/8 MPT
20926-15
-48H
218140-39
23
Coupling, 3/4 Pipe x 3”
20926-10
218140-20
24
Plug, 1/8” Sq. Head
20925-17
-36H
218140-21
25
Nipple, 3/4” Closed
20925-92
-48H
218140-22
26
Elbow, 3/4” Black Pipe
20926-11
Firebox Weldment, -24H
IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
Part
Number
218131-14
27
Captive Screw
31007-24
-36H
218132-14
28
Captive Screw Retainer
81966-02
-48H
218133-14
29
Captive Screw Receptacle
81966-01
218140-26
30
Elbow, 1/4 MPT x 3/8 CC
20931-03
-36H
218140-27
31
Elbow, 3/8-27 M x 3/8 CC
20926-14
-48H
218140-28
32
Bracket, Orifice Mount
218140-19
218140-23
33
Bracket, Pilot Mount
218140-36
218140-24
34
Pilot Burner
20928-00
Pilot Orifice, Natural
20929-03
Leg Support, -24H
Back Panel, -24H
Front Panel, -24H
-36H
-48H
218140-25
If you have questions concerning the installation, operation, maintenance or service of this product, write
Technical Service Department APW/Wyott Foodservice Equipment Company, P.O. Box 1829, Cheyenne,
WY 82003.
6
Body Side Panel
218133-13
Pilot Orifice, L.P.
20929-02
7
Drip Trough Weldment
218140-56
35
Thermocouple
14731-03
SPECIFICATIONS AND DIMENSIONS
8
Grease Tray Guide, R.H.
300475-08
36
Safety Pilot Valve
20927-02
300475-07
37
Screw, #10-32 x 1/2”
81707-00
Screw, #8-32 x 3/8”
81531-00
Model
Width
in. (mm)
Depth
in. (mm)
Height
in. (mm)
No. of
Burners
BTU/kW
Per Burner
Total
BTU / kW
Hour
W.C.
in. (‘mbar’)
GGT-24
24 (610)
26 (661)
17-3/4(451)
2
25,000/7.3
50,000/14.6
6/10(15/25)
GGT-36
36 (915)
26 (661)
17-3/4(451)
3
37,500/11
75,000/22
6/10(15/25)
GGT-48
48 (1220)
26 (661)
17-3/4(451)
4
25,000/7.3
100,000/29.3
6/10(15/25)
GGM-24
24 (610)
26 (661)
16-3/4(426)
2
25,000/7.3
50,000/14.6
6/10(15/25)
GGM-36
36 (915)
26 (661)
16-3/4(426)
3
37,500/11
75,000/22
6/10(15/25)
9
Grease Tray Guide, L.H.
10
Grease Tray
218131-91
38
11
Burner, U Shape
20658-50
39
Nut, #10-32
84171-00
20658-55
41
Pipe, 3/4 Black x 23” Long
20926-13
87056-00
42
4” Adjustable Leg
86320-00
43
Plug, 1/4 MPT
20925-53
44
Mounting Flange
20001-01
45
“D” Stem
20001-02
46
Screw, #10-24-x 1”
81854-00
47
Washer, Lock #10
85117-00
48
Thermostat Bulb Cover
217230-90
49
Thermostat Bulb Insulation
10180-44
50
Washer, Flat 5/16”
85093-00
51
Nut, 5/16-18 Hex
84362-00
Burner, S Shape
GGM-48
48 (1220)
26 (661)
Griddle Surface Dimensions
16-3/4(426)
4
Model
GGT-24 and GGM-24
25,000/7.3
100,000/29.3
14
Width in./mm
Depth in./mm
23-13/16”/ 605
19-1/2”/ 496
35-13/16”/ 910
19-1/2”/ 496
GGT-48 and GGM-48
47-13/16”/ 1215
19-1/2”/ 496
Knob
Manifold Weld., -24H
-36H
-48H, 1 ea.
6/10(15/25)
GGT-36 and GGM-36
4
13
-48H, 1 ea.
15
16
17
Pilot Tube, Standing Pilot
218140-29
218140-30
218140-31
218140-29
218140-45
Safety Pilot Tube, -24 & -48
218140-47
-36
218140-48
Supply Tube, to Orifice
218140-43
18
Pressure Regulator, Conv.
20666-00
19
Nat. Orifice, #44 @ -24, -48
20668-44
Nat. Orifice, #37 @ -36
20668-37
L.P. Orifice, #54 @ -24, -48
20668-54
L.P. Orifice, #50 @ -36
20668-50
13
GENERAL INSTALLATION INSTRUCTIONS
Ensure gas supply and gas type, as shown on unit nameplate agree.
Unit installation must conform with the National Fuel Gas Code, ANSI Z223.1-1996, the National Gas Installation Code, CAN/CGA-B149.1, or the Propane Installation Code, CAN/CGA-B149.2 as applicable and
in accordance with local codes.
Screw legs into the permanently fastened nuts on the four corners of the unit and tighten by hand. Level
the unit by turning the adjustment screw at the bottom of each leg. Do not slide unit with legs mounted, lift
if necessary to move unit.
Pipe gas supply to unit.
Pipe threading compound must be resistant to the action of liquefied petroleum gases.
!
CAUTION
DO NOT use an open flame to check for leaks. Check all gas piping for leaks with a soap and water solution before operating unit.
These units are suitable for installation on noncombustible surfaces only.
Noncombustible clearances:
0” sides (0 mm)
6” rear (152 mm)
Do not obstruct the flow of combustion and ventilation air, under the unit by the legs or behind the unit by
the flue.
Adequate clearance for air openings into the combustion chamber is required. Do not place objects between the bottom of the unit and the counter top.
There must be adequate clearance for removal of the front panel. All major parts except the burners are
removable thru the front if the gas line is disconnected.
CANADIAN INSTALLATION MUST COMPLY WITH THE CANADIAN ELECTRICAL CODE, CSA C22.2,
AS APPLICABLE.
!
NOTICE
The unit, when installed, must be electrically grounded in accordance with local codes or, in the absence of
local codes, with the national electrical code, ANSI/NFPA 70, latest edition.
!
NOTICE
Local codes regarding installation vary greatly from one area to another. The National Fire Protection
Association, Inc. states in its NFPA 96 latest edition that local codes are "authority having jurisdiction" when
it comes to requirements for installation of equipment. Therefore, installations should comply with all Local
codes.
EUROPEAN COMMUNITY INSTALLATION INSTRUCTIONS:
“THIS APPLIANCE MUST BE FITTED BY A COMPETENT PERSON. IN THE U.K., CORGI REGISTERED
INSTALLERS (INCLUDING THE REGIONS OF BRITISH GAS) UNDERTAKE TO WORK TO SAFE AND
SATISFACTORY STANDARDS. THIS APPLIANCE MUST BE INSTALLED IN ACCORDANCE WITH THE
GAS SAFETY (INSTALLATION AND USE) REGULATIONS AND THE RELEVANT BUILDING REGULATIONS / I.E.E. REGULATIONS. DETAILED RECOMMENDATIONS ARE CONTAINED IN THE FOLLOWING BRITISH STANDARD CODES OF PRACTICE - BS 6172, BS 5440 PART 2, BS 6891”
“THIS APPLIANCE MUST BE INSTALLED IN ACCORDANCE WITH THE RULES IN FORCE”
“MUST BE INSTALLED IN A WELL VENTILATED AREA. Ventilation requirements ie. B.S. 5440.”
12
5
LIGHTING INSTRUCTIONS
NOTES
GGT and GGM Griddles are furnished with either a pilot safety valve or a standing pilot (not
available in the European Community). Please follow the instructions for your unit.
Pilot Safety Valve Lighting Instructions
1.
2.
3.
4.
Turn on main gas supply to unit, on-off valve located behind the unit (not supplied with unit).
Turn the burner control knobs to "OFF" position. Open the front panel and wait at least 5 minutes to
allow any gas which may have accumulated in the firebox compartment to escape.
Depress red button on the pilot safety valve and light through observation hole in firebox. Keep red
button on pilot safety depressed for at least 1 minute after pilot has lit. If pilot does not light, repeat this
step.
To adjust the pilot flame, rotate knob next to the red button. Turning the knob clockwise increases the
pilot flame. A properly sized pilot should be 1/2” to 3/4” long (12/19 mm).
Standing Pilot Lighting Instructions ( Not Available in the European Community )
The pilot lights on the griddles have been set at the factory. A screwdriver maybe required for the first lighting to adjust the flame for your elevation.
1.
2.
3.
4.
5.
6.
7.
Turn off the manual shut off valve and wait 5 minutes to clear the gas.
Turn all knobs to the “OFF” position.
Remove the grease drawer and front panel for easy access.
Turn the manual shut off valve on.
Hold an ignition source (match) at the pilot tube. When the flame is established, remove the ignition
source.
Turn the burner knobs to “HI”. If the burner does not ignite, promptly open the pilot valve more. If the
pilot flame appears larger than necessary, turn it down and reset burner ignition. The pilot flame
should be as small as possible but large enough to guarantee reliable ignition of the burners when
the knobs are turned to “HI”.
Replace the front panel and grease drawer.
Lighting main burner
Since the burner is lit from constantly burning pilot, turn knobs to “HI” to put the unit in operation; then,
adjust to any desired position between “LO” and “HI”.
Main burner air supply:
1.
2.
For efficient burner operation, a proper balance of gas volume and primary air supply must be maintained which will result in complete combustion. Insufficient air supply results in a yellow streaming
flame. Primary air supply is controlled by an air shutter on the front of the burner.
Loosen the screws on the front of the burner and adjust the air shutter to just eliminate the yellow tips
of the burner flame. Lock the air shutter in place by tightening the screws.
European Community
If adjustment becomes necessary in the field, it should be done by a factory authorized and trained technician who should seal the screw after the adjustment to safeguard against unauthorized tampering by the
end user.
All burners are lit from constantly burning pilots. Turning the thermostat to the desired temperature is all
that is required to put the unit in service.
Do not permit fans to blow directly at the unit. Wherever possible, avoid open windows next to the units’
(Continued on page 7)
6
11
(Continued from page 6)
TROUBLESHOOTING GUIDE
sides or back. Avoid wall type fans which create air cross-currents within a room.
PROBLEM
POSSIBLE CAUSE
Thermostat is bad.
Heat does not come on when
thermostat is turned on.
Pilot burner not lit.
It is also necessary that sufficient air should be allowed to enter the room to compensate for the amount of
air removed by any ventilating system. Otherwise, a subnormal atmospheric pressure will occur, which will
effect operation and cause undesirable working conditions.
A properly designed and installed hood will act as the heart of the ventilating system for the room or area in
which the unit is installed and will leave the unit independent of changing draft conditions.
Gas valve is bad.
Obstructed pilot orifice.
Pilot burner will not light.
Pilot gas turned off at automatic pilot.
All valves and thermostats must be checked and lubricated periodically. Consult the authorized service
representative in your area.
OPERATING INSTRUCTIONS
Automatic pilot valve is bad.
Season Griddle:
Thermocouple is bad.
Thermocouple is not hot enough.
Obstructed or wrong size pilot orifice.
Pilot burner will not stay lit.
Gas supply is not purged of air.
Heat to low temperature (300 - 350 F/150-180C) and pour on a small amount of cooking oil, about one
ounce (30cc) per square foot of surface. Spread the oil over the entire griddle surface with a cloth to create
a thin film. Wipe off any excess oil with a cloth. Repeat this procedure 2 to 3 times until the griddle has a
slick, mirror-like surface.
Operation:
Air is blowing pilot light out.
Automatic pilot valve is bad.
Fat appears to smoke excessively.
Food sticks to griddle.
Heat is set too high.
Moisture in the food may be turning into steam.
Heat is set too high.
CLEANING / MAINTENANCE
Griddle surface needs cleaning and/or seasoning.
Initial Cleaning:
Surface under food may not have been covered with enough cooking
oil.
Prior to operating your new griddle, thoroughly wash the griddle surface and the exterior with a mild detergent or soap solution. Do not use abrasive cleaners since this might damage the cabinet finish. If the
stainless steel surfaces become discolored, scrub by rubbing only in the direction of the finished grain.
Heat is set too high.
Food burned around edges or
contains dark specks.
Turn the burners on about 15-20 minutes before cooking for preheating. Set the knobs to the desired flame
height or temperature. Each valve will control the gas flow to the burner to bring that area of the plate up to
the set temperature. If different temperature settings are to be used, adjoining areas should be set at progressively higher temperatures using the lowest temperatures on the outside burners. A uniform and systematic approach to the loading of the griddle will produce the most consistent product results.
Griddle surface needs cleaning and/or seasoning.
Cleaning:
Surface under food may not have been covered with enough cooking
oil.
1.
2.
3.
Heat is set too high.
Food is undercooked inside.
Food may not have been cooked for long enough time.
Food itself may have off flavor.
Food tastes greasy or has objectionable off-flavor.
Food may have been stored improperly before cooking.
Too much griddle fat used.
4.
Always turn unit off and allow it to cool completely before cleaning. Clean thoroughly before first use.
After each use, clean the griddle with wire brush or flexible spatula.
Once a day, thoroughly clean splash back, sides and front. Remove the grease drawer, empty it and
wash it out.
Once a week, clean the griddle surface thoroughly. If necessary, use a griddle stone, wire brush or
steel wool on the surface. Rub with the grain of the metal while the griddle is still warm. A detergent
may be used on the plate surface to help clean it; but, care must be taken to be sure the detergent is
thoroughly removed. After removal of the detergent, the surface of the plate should then be covered
with a thin film of oil to prevent rusting. Clean stainless surfaces with a damp cloth and polish with a
soft dry cloth. To remove discoloration, use a nonabrasive cleaner. After each “weekly” cleaning, the
griddle must be seasoned again. If the griddle usage is very high, the “weekly” cleaning procedures
may be done more often than once a week.
Heat is set too low.
Heat is set too high
Noticeable build-up of gum on
griddle.
Griddle surface needs cleaning and/or seasoning.
Too much griddle fat used.
10
Extended Shutdown:
Turn the manual shutoff valve to “OFF”; (field installed valve not supplied by the manufacturer); turn all
control knobs to the “OFF” position; and shut off the pilot flame by turning the adjustment on the pilot valve.
If the griddle is to be shut down for an extended period, put a heavy coat of grease over the griddle plate.
7
(Continued from page 8)
SERVICE / REPAIR
NOTE: THIS APPLIANCE MUST ONLY BE SERVICED BY AN AUTHORIZED AGENT.
3.
If recalibration is required, the additional steps to be taken are:
a. Remove the dial and D-stem. Push the calibration stem inward with a screwdriver, while holding the
calibration stem firmly in, turn slowly clockwise to obtain a lower temperature or counter-clockwise
for a higher temperature. Each mark on the retainer represents 25 degrees in temperature. Re
place dial and D-stem.
b. Set dial at 400 degree mark. Check temperature again, as instructed above. If the temperature is
not within 20 degrees of the dial setting (400 deg.), it means that the sensing element is inoperative
and the control should be replaced.
*
NOTE: Turning the calibration stem to far will disassemble the inside of the valve. This negates the
warranty.
NOTE: Parts protected by the manufacturer or his agent are not to be adjusted by the installer unless
the installer is an authorized service agent.
If you have any questions or problems contact your nearest APW/Wyott
Service Representative.
CONVERSION (Not Available in the European Community
Instructions are for conversion from Natural Gas to Propane (L.P.) on all models GGT and GGM.
The conversion should b done before connecting the unit to the gas supply.
1.
2.
3.
4.
5.
6.
7.
8.
Remove the knobs and front panel.
Remove the supply tubes that go between the valves and the orifice fittings.
Remove the orifice fittings from the firebox. Change the orifices to the size recommended for propane
(L.P.).
Replace the orifice fittings into the firebox.
Replace the supply tubes between the valves and the orifice fittings.
Replace the front panel, grease drawer and knobs.
Reverse plug in pressure regulator. The marking on the plug facing out should match gas supply.
Continue with the installation.
Gas Valve Adjustment (Manual Valves):
The manual gas valve is at full on when turned counter-clockwise approximately 1/4 turn. This valve can
be turned down to the point where the flame flickers over the burner but does not extinguish if temperatures
below 300 degrees F are required.
Gas Valve Adjustment (BJWA Valves):
By-Pass Adjustment Instructions:
1.
2.
3.
4.
Light burner, turn the dial to full on.
After 5 minutes, turn dial clockwise to a point slightly beyond the first mark on the dial.
With a screwdriver, turn the by-pass adjustor counter-clockwise to increase the flame, clockwise to
decrease it, until there is a minimum flame over the entire burner. A flame height of between 3/16
and 1/4 inch tall is acceptable.
If the burners are turned to full on, the flame height should increase. Leave the flame at full on for a
few minutes. Then, decrease the setting to low. The flame should decrease to the height that you
just set.
NOTE: The regulating valve, with by-pass flame used on the GGT-style griddles, works best at temperatures above 300 degrees F. If you need temperatures below 300 deg. F, the by-pass flame can be turned
off.
To turn off the by-pass flame, turn the adjuster screw clockwise until it meets resistance. DO NOT OVER
TIGHTEN. The valve will still regulate the temperature with the by-pass turned off. DO NOT TURN
SCREW COUNTER-CLOCKWISE more than one turn. Turning the adjuster screw to far counter-clockwise
will allow a gas leak around the screw that will cause a fire hazard.
To Recalibrate the Griddle Control:
1.
2.
Recalibration should not be undertaken until the by-pass flame has been adjusted.
Light unit and set dial to the 350 degrees F. After the burner has been on about 15 minutes, check
temperature. Continue to check the temperature at 5 minute intervals until 2 successive readings are
within 5 degrees of each other. The control should be recalibrated if your readings are not within 10
degrees of the dial setting.
(Continued on page 9)
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