Lang 224ZT User manual

IL2412
ENVIROZONE-TSTAT
GAS GRIDDLE
Commercial
224ZT, 236ZT, 248ZT, 260ZT, 272ZT
Installation and
Operation
Instructions
2M-W1785 Rev. C 4/23/15
272ZT

2
SAFETY SYMBOL
Model No.:
Serial No.:
Voltage:
1-Phase or 3 Phase:
Purchased From:
Location:
Purchase Date:
Installed Date:
These symbols are intended to alert the user to the presence of important operating
and maintenance instructions in the manual accompanying the appliance.
FOR YOUR SAFTEY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN
THE VICINTIY OF THIS OR ANY OTHER APPLIANCE.
The installation of the Appliance must conform to the NATIONAL FUEL GAS CODE "ANSI Z223.1 - LATEST
EDITION" AND ALL LOCAL GAS COMPANY RULES AND REGULATIONS.
IN CANADA INSTALLATION SHALL BE IN ACCORDANCE WITH THE CURRENT CAN/CGA-B149.1 NATURAL
GAS INSTALLATION CODE OR CAN/CGA-B149.2 PROPANE INSTALLATION CODE AND LOCAL CODES WHERE
APPLICABLE.
POST IN PROMINENT LOCATION
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT USER SMELLS GAS. THIS INFORMATION
SHALL BE OBTAINED BY CONSULTING YOUR LOCAL GAS SUPPLIER. AS A MINIMUM, TURN
OFF THE GAS AND CALL YOUR GAS COMPANY AND YOUR AUTHORIZED SERVICE AGENT.
EVACUATE ALL PERSONNEL FROM THE AREA.
WARNING
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN
CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE INSTALLATION, OPERATION
& MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS
EQUIPMENT.
WARNING
RISK OF FIRE OR ELECTRIC SHOCK
DO NOT OPEN
WARNING, TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE
CONTROL PANEL. NO USER-SERVICABLE PARTS INSIDE.
REPAIRS SHOULD BE DONE BY AUTHORIZED SERVICE PERSONNEL ONLY.
NOTICE
Using any part other than genuine Lang factory supplied parts relieves the manufacturer of all liability.
Lang reserves the right to change speci cations 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
specifications contained in this sheet are subject to change without notice. While Lang
Manufacturing 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 speci cations. By using the information provided, the user assumes all risks in con-
nection with such use.
MAINTENANCE AND REPAIRS
Contact your local dealer for service or required maintenance. Please record the model number, serial
number, voltage and purchase & Installation Information in the area below and have it ready when you
call to ensure a faster service.

3
TABLE OF CONTENTS
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . 5
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation
Leg Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ventilation & Clearence . . . . . . . . . . . . . . . . . . . . . . 7
Electrical & Gas Connection. . . . . . . . . . . . . . . . . . . . 8
Initial Start-Up
Initial Lighting Procedure . . . . . . . . . . . . . . . . . . . . . 9
Seasoning Cooking Surface. . . . . . . . . . . . . . . . . . . . 9
Operation
Setting the Griddle Temperature . . . . . . . . . . . . . . . . .10
Suggested Times and Temperatures . . . . . . . . . . . . . . .10
Loading the Griddle . . . . . . . . . . . . . . . . . . . . . . . . 11
Sequence of Operation
Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maintenance
Daily Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Weekly Cleaning . . . . . . . . . . . . . . . . . . . . . . . . .12
Burner Air Shutter Adjustment. . . . . . . . . . . . . . . . . . . 12
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Troubleshooting
Symptoms / Possible Causes / Test . . . . . . . . . . . . . . . . 14
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .15 - 17
Exploded View & Parts List . . . . . . . . . . . . . . . . . . . . . 18-23
PROBLEMS, QUESTIONS or CONCERNS
Before you proceed consult you authorized Lang service agent directory
or
Call the Lang Technical Service & Parts Department at [phone]
NOTICE ServiceonthisoranyotherLangappliancemustbeperformedbyqualied
personnel only. Consult your Lang Authorized Service Agent Directory.
You can call technical service at [phone] or visit our website
WWW.LANGWORLD.COM for the service agent nearest you.

4
Front Side
Top
31.375”
16.5”
20”
4”
IL2411
EQUIPMENT SPECIFICATIONS
GAS AND ELECTRIC INPUT REQUIRMENTS
MODEL
NUMBER
DESCRIPTION TOTAL BTU INPUT GAS
CONNECTION
ELECTRICAL
CONNECTION
CORD/PLUG
& PRESSURE
REGULATOR
Unit
Width
Griddle Surface
Depths
NATURAL PROPANE
5” WC 10” WC VOLTAGE AMPS
224ZT 24” 24” 54,000 54,000
ONE 3/4” NPT 115 VOLT 2 SUPPLIED
224ZTD 30” 70,000 70,000
236ZT 36” 24” 81,000 81,000
236ZTD 30” 105,000 105,000
248ZT 48” 24” 108,000 108,000
248ZTD 30” 140,000 140,000
260ZT 60” 24” 135,000 135,000
260ZTD 30” 175,000 175,000
272ZT 72” 24” 162,000 162,000
272ZTD 30” 210,000 210,000
SPECIFICATIONS AND INFORMATION
MODEL
NUMBER
GRILL SURFACE
OVERALL SQUARE
INCHES OF
GRIDDLE
NUMBER
OF
BURNERS
NUMBER OF
CONTROLS
NUMBER
OF GREASE
DRAWERS
CLEARANCE FROM NON-
COMBUSTIBLE SURFACES WEIGHT
WIDTH DEPTH SIDES BACK BOTTOM ACTUAL SHIPPING
224ZT 24 “ 23 “ 552 2 2 1 0 “ 5 “ 4 INCH LEG 255 300
224ZTD 30 “ 720
236ZT 36 “ 23 “ 828 3 3 1 0 “ 5 “ 4 INCH LEG 336 400
236ZTD 30 “ 1,080
248ZT
48 “
23 “ 1,104
4 4 2 0 “ 5 “ 4 INCH LEG 435 500248ZTD 30 “ 1,440
248TDC
260ZT 60 “ 23 “ 1,380 5 5 2 0 “ 5 “ 4 INCH LEG 530 625
260ZTD 30 “ 1,800
272ZT 72 “ 23 “ 1,656 6 6 2 0 “ 5 “ 4 INCH LEG 610 725
272ZTD 30 “ 2,160

5
EQUIPMENT DESCRIPTION
Exterior Construction
The griddle dimensions are 17” (43.18cm) High, 30” (76.20cm) Deep, and width is dependent on the actual model
number.
The Sides, Bottom, and Rear wall are constructed of double wall stainless steel, which allows closer installation to
combustible surfaces.
The griddle surface is made of 1” thick, highly polished steel to reduce hot and cold spots, recovery problems,
warping, and ensure even heat to the edges of the griddle.
Operation
• Each 12” section has its own snap-action thermostat and gas valve that are fully “ON” or fully “OFF”.
• The control has factory congurable maximum and minimum temperature settings. The maximum temperature
value can be set at 550°F (288°C). The minimum temperature value can be set at 200°F (93°C).
Technical
• Griddle operates on either Natural gas or Propane, which must be specied when ordering.
• It is shipped with a power cord and plug attached.
• Floor space required is 30” (76.20cm) Deep, and width is 2 ft, 3ft, 4ft, 5ft, or 6ft depending on actual model
number.
• The griddle weighs 255, 336, 435, 530, 610 lbs. depending on actual model number.
GriddleGasandVoltageSpecications
The Lang Model can be connected to any 120 Volt source. The gas and electrical specications are listed in the
table on the previous page.
NOTICE The data plate is on the right side of the griddle. The voltage, wattage, serial
number,wiresize,andclearancespecicationsareonthedataplate.This
information should be carefully read and understood before proceeding with
the installation.
Gutter
Adj. Legs
Section Temp Dial
Grease Pan Main Power Switch
Nameplate
Wall Anchor
& Gas Inlet
1” Griddle Surface
IL2410

6
CAUTION
UNPACKING
Receiving the Griddle
Upon receipt, check for freight damage, both visible and concealed.
Visible damage should be noted on the freight bill at the time of delivery and
signed by the carrier’s agent. Concealed loss or damage means it does not
become apparent until the merchandise has been unpacked. If concealed
loss or damage is discovered upon unpacking, make a written request for
inspection by the carrier’s agent within 15 days of delivery. All packing
material should be kept for inspection. DO NOT return damaged
merchandise to Lang Manufacturing. File your claim with the carrier.
Location
Prior to un-crating, move the griddle as near to its intended location as practical. The crating will help
protect the unit from the physical damage normally associated with moving it through hallways and
doorways.
Un-crating
The griddle will arrive completely assembled inside a wood frame and strapped to a skid.
Cut the straps and remove the wood frame.
The griddle can now be removed from the skid.
THE UNIT IS EXTREMELY HEAVY. FOR SAFE HANDLING, INSTALLER SHOULD
OBTAIN HELP AS NEEDED, OR EMPLOY APPROPRIATE MATERIALS HANDLING
EQUIPMENT (SUCH AS A FORKLIFT, DOLLY, OR PALLET JACK)
TO REMOVE THE UNIT FROM THE SKID AND MOVE IT TO THE PLACE OF
INSTALLATION.
ANY STAND, COUNTER OR OTHER DEVICE ON WHICH GRIDDLE WILL BE
LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE GRIDDLE.
SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CUT.
LEG INSTALLATION
The legs are installed by sliding the threaded ends of the
legs into the leg receiver tubes located in each corner of
the griddle.
Slide the leg up until contact is made with the threaded
nut at the top of the reciever tube. Screw the leg counter-
clockwise until it is hand tight.
After the griddle is in its nal position, adjust the legs to
create 1/8 inch slant from back to front. This will allow the
grease to run into the front grease gutter and provide the
proper combustion air for the burners. It will also allow
exposed gasses to escape out the rear of the unit.
Level unit by adjusting the (4) legs for accurate and perfect
lineup with other units.
Front
IL2379

7
VENTILATION & CLEARENCE
CLEARANCE
For use on non-combustible countertops only.
Combustible and non-combustible material must be at least 48” (120cm) from the top of the
appliance. Combustible material must be 5” (150mm) from the sides and back, while clearance to
non-combustible material on the sides and back is 0”. Adequate clearance should also be provided
for proper operation and servicing.
AIR SUPPLY
Make certain not to obstruct the ow of combustion and ventilation air. Provisions for adequate air
supply must be furnished. The legs supplied with the unit must be installed. Make certain that air
intake openings in the bottom of the appliance are not obstructed. They are essential for proper
combustion and operation of the appliance.
EXHAUST CANOPY
It is essential that facilities be provided over the griddle to carry off fumes and gases. However,
the unit should not be directly connected to a ue or stack.

8
INSTALLATION
Electrical Connection
The griddle is supplied with a cord and plug. The receptacle is not provided with the griddle.
Follow the receptacle manufacturer’s instructions when connecting the receptacle to the power supply.
Gas Connection
This griddle is manufactured for use with the type of gas indicted on the nameplate.
Contact the factory if your type of gas does not match the nameplate data.
All gas connectors must be in accordance with local codes and comply with the National Fuel Federal
Gas Codes ANSI Z223.1 latest edition.
This appliance should be installed with a separate gas valve in the gas line ahead of the unit. Use a
3/4 inch or larger gas supply line.
Remove the 5/16 inch nuts securing the rear of burners. These nuts are for securing the main burners
during transportation only. The rear burner shield must be removed to gain access to the nuts.
A pressure regulator for the type of gas specied is installed on each appliance.
This regulator must be installed in the gas supply line. (Note the direction of the gas ow arrow.)
The pressure in the manifold of the appliance should be tested with a manometer and the regulator
adjusted for proper pressure with the appliance operating at full re. A 1/8 inch NPT tap is provided in
the manifold for connecting a manometer.
Correct manifold pressures are:
5 inches water column for natural gas
10 inches water column for propane
When replacing the plug in the manifold, a pipe joint compound or sealant should be used that is
resistant to the action of liquid petroleum gas.
Initial adjustments are the responsibility of the installer and are not chargeable to Lang Manufacturing
International.
After the griddle is in its nal position, adjust the legs to create 1/8 inch slant from back to front.
This will allow the grease to run into the grease gutter and provide the proper combustion air for the
burners.
DANGER: THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL
PROVIDED. FAILURE TO GROUND THE APPLIANCE COULD
RESULT IN ELECTROCUTION AND DEATH.
INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL
QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING.
IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL
AND/OR DAMAGE TO EQUIPMENT. UNIT MUST BE INSTALLED IN
ACCORDANCE WITH ALL APPLICABLE CODES.
NOTICE: The data plate is located on the right side of the griddle. The
griddlevoltage,serialnumber,gasspecications,andclearance
specicationsareonthedataplate.Thisinformationshould
be carefully read and understood before proceeding with the
installation.
NOTICE: The installation of any components such as a vent hood, grease
extractors,reextinguishersystems,mustconformtotheir
applicable National, State and locally recognized installation
standards.
WARNING

9
INITIAL START UP
Initial Lighting Procedure
Clean the preservative coating from the griddle plate and splash guard. Add a mild detergent to hot
water and wash the griddle plate and splash guard. Rinse with a damp sponge and dry with a clean
rag.
WARNING: BEFORE LIGHTING, USE A SOAP AND WATER SOLUTION TO
TEST ALL JOINTS FOR GAS LEAKS.
• Plug the unit into a 115-volt power supply.
• Turn the ON-STANDBY toggle switch to ON.
• Set the temperature dials to the desired temperature.
• To turn the griddle off, simply turn the main toggle switch to STANDBY.
Seasoning the Griddle Plate (non chrome only)
• Set the temperature dials to 300°F (148°C).
• Observe the burners through the opening at the top of the control panel.
• When the burners go OFF, apply a thin coat of high-grade, non-salted vegetable oil to the
griddle surface.
• Rub the oil into the griddle surface with the at side of a spatula or a towel.
• Recoat any dry spots that appear then wait two minutes and wipe off any excess oil.
• Repeat the seasoning process at 350°F (176°C) and at 400°F (204°C).
NOTICE: Duringtherstfewhoursofoperationyoumaynoticeasmall
amount of smoke coming off the griddle, and a faint odor from
the smoke. This is normal for a new griddle and will disappear
aftertherstfewhoursofuse.

10
OPERATION
Setting the Griddle Temperature
The suggested time and temperature chart (below) is provided as a guide for the products listed only.
If different temperature settings are to be used, select one side of the griddle and operate at the lowest
temperature. Adjoining sections should be set at progressively higher temperatures.
Do not try to operate the end sections hot and the center sections cool.
ALWAYS KEEP THE AREA NEAR THE APPLIANCE FREE FROM
COMBUSTIBLE MATERIALS.
KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND DRY. IF
SPILLS OCCUR, CLEAN IMMEDIATELY, TO AVOID THE DANGER
OF SLIPS OR FALLS.
CAUTION
SUGGESTED TIMES AND TEMPERATURES
PRODUCTS
TEMPERATURE
(F / C) TIME (MIN)
HAMBURGER
350°F (176°C)
2 patties per LB 6 to 8
4 patties per LB 4 to 6
6 patties per LB 3 to 4
STEAKS
1/2 to 3/4 inch thick, cooked
medium 375°F (190°C) 5 to 7
3/4 to 1 inch thick, cooked
medium 8 to 10
Lamb Chops
350°F (176°C)
6 to 8
Pork Chops 6 to 8
Salmon 6 to 8
Halibut 325°F (162°C) 6 to 8
Snapper 6 to 8
Hashbrown Potatoes 375°F (190°C) 3 to 4
Bacon 350°F (176°C) 3 to 4
Sausage Links or Patties 3 to 4
Ham (Pre-cooked) 375°F (190°C) 2
Eggs 275°F (135°C) 2 to 4
Note: The times and temperatures in this chart are intended as a general
guide and starting point. Your actual times and temperatures may vary from
this chart.

11
OPERATION
Loading the Griddle
An understanding of how the griddle sections are controlled will be a valuable aid in loading your
griddle.
Each 12 inch section of your griddle is independently controlled. The temperature control sensor is
mounted under the griddle plate in the center of each cooking section.
If the product is loaded directly over the temperature sensor, that section will turn on and the
burner will heat the entire cooking section. If the product is loaded to the side, front or back of the
temperature sensor, the thermostat will react to the temperature change much slowly.
During slow periods with minimal loads, do not load directly over the thermostat sensors as this will
unnecessarily turn the burners on and overheat the remainder of the section not being utilized.
Turn the product and continue cooking until it has reached its desired degree of doneness.
Remove the product from the griddle.
When reloading the griddle, rst use the griddle surface on which a previous load was not placed.
This will insure you the proper griddle temperature.
SEQUENCE OF OPERATION
Power On
When the griddle is connected to 115 Volt power, and the switch is turned “ON” the spark module for
each section starts sparking.
When the individual pilot tubes ignite, and the pilot ame is veried, the spark module will stop
sparking. Note: The pilot tubes will remain lit until the griddle is turned “OFF” or the gas is shut off.
The operator can now set the temperature of that section by selecting it on the temperature dial.
When the temperature on the dial is set higher than the temperature of the griddle section the
thermostat will generate a “Heat Call”. If the pilot tube is lit, the call goes to the control opening the
valve. The pilot burner ignites the main burner.
As the griddle section temperature increases the thermostat turn off the heat call, followed by the
close of the gas valve.
When the griddle temperature drops below the set temperature the thermostat generates a new heat
call and the sequence repeats.

12
MAINTENANCE & CLEANING
Daily Cleaning (Non chrome only)
• Empty the grease drawer daily or whenever it is 3/4 full. Clean using mild soap and warm water.
• Keep the griddle surface clean. After each cooking load, scrape the griddle surface to remove any carbonized
grease.
• Once a day or when necessary the non chrome griddle surface should be thoroughly cleaned and seasoned
again. Use a griddle stone, griddle pad, or liquid cleaner. Rub with the grain of the metal, being careful not to
scrape the splash guard.
• Following the scraping, a damp cloth and non-silicated, non-abrasive, non-chlorinated cleaner such as Bon-Ami
may be used to wipe surface clean, followed by wiping with a clean wet cloth.
Weekly Cleaning (Non chrome only)
• A mild detergent with water or one of the many commercial cleaners may be used.
• Be sure to rinse thoroughly and coat the griddle with a thin lm of oil to prevent rusting,
non-chrome surfaces only.
• Clean the exterior of the appliance with hot water and a mild detergent to maintain a gleaming appearance.
• Re-season the griddle plate after each cleaning, non-chrome surfaces only.
Burner Air Shutter Adjustment
• The air shutters are pre-set at the factory. However, minor
adjustments may be required in the eld to accommodate
differences in gas and elevation.
• To adjust the air shutters, loosen the set screw holding the air
damper to the burner near the gas inlet.
• Adjust the air mixture until the burner ame just ickers on
the burner. “Lift-off” or yellow ame indicates improper
shutter adjustment.
• Periodically inspect and clean the air shutters to insure
complete combustion.
Griddle Care (Chromium Surfaces)
It takes very little time and effort to keep this Industrial Chromium griddle surface sparkling clean and performing at
top efciency. DO NOT allow grease to accumulate as it will carbonize and become difcult to remove. To prevent
this condition the following cleaning suggestions should be followed:
1. Remove excess grease and food regularly with a 4” (100mm) wide Razor Sharp type scraper and wipe surface
with a damp cloth if desired.
2. Following the scraping, for end of the day cleaning, a damp cloth and a non-silicated, nonabrasive, non-
chlorinated cleaner such as Bon-Ami may be used to wipe surface clean, followed by wiping with a clean wet
cloth.
3. Follow steps 2 and 3 from Griddle Care (Non-Chromium Surfaces) above.
CAUTION
1. Never use pumice, griddle stones, or abrasives on a chromium surface.
2. Never strike a chromium griddle surface with a sharp instrument or spatula edge.
3. Never use steel wool.
4. Never use commercial liquid grill cleaner on the griddle surface.
5. Abusing surface voids the warranty.
Burner
Air Shutter
Set Screw
IL2414

13
MAINTENANCE & CLEANING continued
CHROME GRIDDLE SURFACE LIMITED WARRANTY EXCLUSIONS
Your Chrome griddle has been designed to give you many years of cooking reliability and requires
minimum maintenance to keep the chrome surface in its original condition. All Chrome griddle surfaces
are warranted for a period of 5 years against manufacturing defects to the original owner from the date of
installation. This limited warranty is void if it is determined by Lang Manufacturing or one of its authorized
representatives that the chrome surface has been misused or abused or subjected to the following
situations:
1. Improperly installed.
2. Incorrect voltage applied to Chrome units allowing the surface to overheat and discolor.
3. The misuse of any instrument or tool which scratches or makes indentations in the surface which
could cause the surface to peel, ake, or chip off.
4. The use of any chemical or abrasive cleaning solution, griddle brick, stone, screen or other cleaning
products which could damage and affect the performance of the chrome surface.
5. The neglect of daily routine maintenance to the chromium surface.
ARNING: KEEP WATER AND SOLUTIONS OUT OF CONTROLS. NEVER SPRAY
OR HOSE CONTROL CONSOLE, ELECTRICAL CONNECTIONS, ETC.
CAUTION: MOST CLEANERS ARE HARMFUL TO THE SKIN, EYES, MUCOUS
MEMBRANES AND CLOTHING. PRECAUTIONS SHOULD BE TAKEN
TO WEAR RUBBER GLOVES, GOGGLES OR FACE SHIELD AND
PROTECTIVE CLOTHING. CAREFULLY READ THE WARNING AND
FOLLOW THE DIRECTIONS ON THE LABEL OF THE CLEANER TO
BE USED.
NOTICE: Never leave a chlorine sanitizer in contact with stainless steel
surfaces longer than 10 minutes. Longer contact can cause
corrosion.
Calibration
• Set the temperature dials to 350°F (176°C)
• Allow the burners to cycle ON and OFF at least ve times before attempting to calibrate
• Place a surface thermometer in the center of each cooking section to be calibrated.
• Allow the burners to cycle several times while recording the temperature at which the burners turn
ON and OFF.
• Average the temperatures together, if the average temperature is within 10° of the set temperature,
the thermostat is within specications and needs no adjustment.
• If the thermostat is out of specication, remove the thermostat knob and inset a small at blade
screw driver down the stem of the thermostat and turn the adjusting screw at the base of the stem.
• Turning the screw counter-clockwise raises the griddle temperature while clockwise lowers the
temperature.
CAUTION
WARNING

14
TROUBLESHOOTING
Symptoms
The chart below is to assist in the troubleshooting of the griddle.
Refer to the Symptoms column to locate the type of failure then to the Possible Cause for the items to be
checked.
NOTICE: Service on this, or any other, LANG appliance must be performed by
qualiedpersonnelonly.ConsultyourLANGauthorizedserviceagent
directory or call technical service at [phone],
or www.langworld.com For the service agent nearest you.
120 VOLTAGES IS PRESENT INSIDE THIS APPLIANCE WHEN THE UNIT
IS PLUGGED/WIRED INTO A LIVE RECEPTACLE. BEFORE REPLACING
ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER
SUPPLY.
USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED
BY LANG OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE BODILY
INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND
WILL VOID ALL WARRANTIES.
WARNING
CAUTION
Lang Envirozone Thermostat Gas Griddle Troubleshooting
Symptom Possible Cause Test
No sections spark
Griddle not plugged in Check power cord connection
Switch power not connected Check connection of switch on the front panel
No power at plug Verify plug has power
One or more sections do
not spark
Main connector on pilot iginition
control not plugged in properly Check all connections on pilot ignition control
Spark wire not connected to pilot
ignition controller or ignitor Check spark wire (orange wire) connections
Pilot iginition control failed Replace pilot ignition control
Ignitor sparks, but does
not light pilot tube
No gas to griddle Check gas connection and shut off valve
Gas supply not purged of air Try ignition sequence again
No gas to pilot tube
Check that pilot valve(s) are opened. Turn screw on valve
counter-clockwise
Check voltage across pilot solenoid valve, should be 120V
Ignitor is sparking away from electrode Check that ignitor is sparking across the electrodes
Pilot tube is lit, but burner
will not light
All pilot tube ports are not lit Check that all ports on pilot tube are lit
Thermostat failed Turn thermostat to max temp and check resistance across
thermostat
Gas valve failed Apply 120V to valve and listen for solenoid actuation
Ignitor continues to spark
after pilot tube is lit
Electrode not sensing pilot ame
because ame is too small
Adust pilot ame by opening pilot valve. Turn screw on
valve counter-clockwise
Yellow or orange in pilot
ame
Primary air hole covered Check air hole in pilot tube near inlet elbow for any
obstruction
Pilot ame too large Adust pilot ame by closing pilot valve.
Turn screw on valve clockwise

15
R
654321
GRN
WHT
BLK
GRN
BRN BRN
BRN
BRN
YEL
YEL
ORG BLK
BLK
WHT
WHT
BLK
WHT
KEY:
POWER CORD
ON/OFF SWITCH
PILOT SOLENOID
BURNER SOLENOID
THERMOSTAT
PILOT IGNITION MODULE
PILOT IGNITOR
WIRE NUT
1
2
5
6
7
8
3
4 4
5
5
6
788
4
3
2
1
REV. DATE/ECO DESCRIPTION OF CHANGE DR
THIS DRAWING CONTAINS INFORMATION CONFIDENTIAL TO STAR MFG. INT'L
INC. NO REPRODUCTION OR DISCLOSURE OF ITS CONTENTS IS PERMITTED
TOLERANCE: UNLESS NOTED: .xxx .015
ANGLES 1
REVISIONS
PART NO.
MODEL NO.
MATERIAL
FINISH
STAR MANUFACTURING INTERNATIONAL INC.
# 10 SUNNEN DRIVE
ST. LOUIS, MO. 63143, USA
DR:
CK:
DATE :
2M-61122-W54
WIRE DIAGRAM - 224ZT (NO TIMERS)
N/A
12/2/11
JMM
TITLE
R
654321
654321
GRN
WHT
BLK
GRN
BRN BRN
BRN
BRN
YEL
YEL
ORG BLK
BLK
BLK
WHT
WHT
WHT
BLK
WHT
BRN
BRN
GRN
YEL
WHT
BLK ORG
WHT
BLK
KEY:
POWER CORD
ON/OFF SWITCH
PILOT SOLENOID
BURNER SOLENOID
THERMOSTAT
PILOT IGNITION MODULE
PILOT IGNITOR
WIRE NUT
1
2
5
6
7
8
3
4 4 4
5 5
5
66
778
8
8
8
4
3
2
1
3
REV. DATE/ECO DESCRIPTION OF CHANGE DR
THIS DRAWING CONTAINS INFORMATION CONFIDENTIAL TO STAR MFG. INT'L
INC. NO REPRODUCTION OR DISCLOSURE OF ITS CONTENTS IS PERMITTED
TOLERANCE: UNLESS NOTED: .xxx .015
ANGLES 1
REVISIONS
PART NO.
MODEL NO.
MATERIAL
FINISH
STAR MANUFACTURING INTERNATIONAL INC.
# 10 SUNNEN DRIVE
ST. LOUIS, MO. 63143, USA
DR:
CK:
DATE :
2M-61122-W55
WIRE DIAGRAM - 236ZT (NO TIMERS)
N/A
12/8/2011
JMM
TITLE

16
R
654321
654321
GRN
WHT
BLK
GRN
BRN BRN
BRN
BRN
YEL
YEL
ORG BLK
BLK
BLK
WHT
WHT
WHT
BLK
WHT
YEL
BRN
BRN
BRN
BRN
GRN
YEL
WHT
BLK ORG
WHT
BLK
KEY:
POWER CORD
ON/OFF SWITCH
PILOT SOLENOID
BURNER SOLENOID
THERMOSTAT
PILOT IGNITION MODULE
PILOT IGNITOR
WIRE NUT
1
2
5
6
7
8
3
3
4 4 4 4
5
5
5
5
66
778
8
8
8
4
3
2
1
REV. DATE/ECO DESCRIPTION OF CHANGE DR
THIS DRAWING CONTAINS INFORMATION CONFIDENTIAL TO STAR MFG. INT'L
INC. NO REPRODUCTION OR DISCLOSURE OF ITS CONTENTS IS PERMITTED
TOLERANCE: UNLESS NOTED: .xxx .015
ANGLES
1
REVISIONS
PART NO.
MODEL NO.
MATERIAL
FINISH
STAR MANUFACTURING INTERNATIONAL INC.
# 10 SUNNEN DRIVE
ST. LOUIS, MO. 63143, USA
DR:
CK:
DATE :
2M-61122-W56
WIRE DIAGRAM - 248ZT (NO TIMERS)
N/A
12/8/2011
JMM
TITLE
R
654321
654321
654321
GRN
WHT
BLK
GRN
BRN BRN
BRN
BRN
YEL
YEL
ORG BLK
BLK
BLK
WHT
WHT
WHT
BLK
WHT
YEL
BRN
BRN
BRN
BRN
GRN
YEL
WHT
WHT
BLK
BLK
ORG
WHTWHT
BLKBLK
BLK
WHT
GRN
BRN
YEL
BRN
ORG
KEY:
POWER CORD
ON/OFF SWITCH
PILOT SOLENOID
BURNER SOLENOID
THERMOSTAT
PILOT IGNITION MODULE
PILOT IGNITOR
WIRE NUT
1
2
5
6
7
8
33
3
4 4 4 4 4
55
5
5
5
66
7778
8
8
8
8
8
6
4
3
2
1
REV. DATE/ECO DESCRIPTION OF CHANGE DR
THIS DRAWING CONTAINS INFORMATION CONFIDENTIAL TO STAR MFG. INT'L
INC. NO REPRODUCTION OR DISCLOSURE OF ITS CONTENTS IS PERMITTED
TOLERANCE: UNLESS NOTED: .xxx .015
ANGLES
1
REVISIONS
PART NO.
MODEL NO.
MATERIAL
FINISH
STAR MANUFACTURING INTERNATIONAL INC.
# 10 SUNNEN DRIVE
ST. LOUIS, MO. 63143, USA
DR:
CK:
DATE :
2M-61122-W57
WIRE DIAGRAM - 260ZT (NO TIMERS)
N/A
12/8/2011
JMM
TITLE

17
R
654321
654321
654321
GRN
WHT
BLK
GRN
BRN BRN
BRN
BRN
YEL
YEL
ORG BLK
BLK
BLK
WHT
WHT
WHT
BLK
WHT
YEL
BRN
BRN
BRN
BRN
GRN
YEL
WHT
WHT
BLK
BLK
ORG
WHTWHT
BLKBLK
BLK
WHT
GRN
BRN BRN
YEL
YEL
BRN
BRN
ORG
KEY:
POWER CORD
ON/OFF SWITCH
PILOT SOLENOID
BURNER SOLENOID
THERMOSTAT
PILOT IGNITION MODULE
PILOT IGNITOR
WIRE NUT
1
2
5
6
7
8
333
4 4 4 4 4 4
5
5
5
5
5
5
66
77788
8
8
8
8
6
4
3
2
1
REV. DATE/ECO DESCRIPTION OF CHANGE DR
THIS DRAWING CONTAINS INFORMATION CONFIDENTIAL TO STAR MFG. INT'L
INC. NO REPRODUCTION OR DISCLOSURE OF ITS CONTENTS IS PERMITTED
TOLERANCE: UNLESS NOTED: .xxx .015
ANGLES 1
REVISIONS
PART NO.
MODEL NO.
MATERIAL
FINISH
STAR MANUFACTURING INTERNATIONAL INC.
# 10 SUNNEN DRIVE
ST. LOUIS, MO. 63143, USA
DR:
CK:
DATE :
2M-61122-W53
WIRE DIAGRAM - 272ZT (NO TIMERS)
N/A
11/28/2011
DJS
TITLE

2M-Z1785; ENVIROZONE-TSTAT GAS GRIDDLE
MODEL:ENVIROZONE THERMOSTAT
GAS GRIDDLE SK2564, Rev. A 5/17/2014
1
2
3
4
5
6 7 8
9
12
13
14
15
15
27
28
29
26
timer units
16
17
18
19
20
21
22
23
20
19
24
25
2
See Detail A

2M-Z1785; ENVIROZONE-TSTAT GAS GRIDDLE
PARTS LIST April 23, 2015, Rev. C
IMPORTANT: WHEN ORDERING, SPECIFY VOLTAGE OR TYPE GAS DESIRED PAGE 1
INCLUDE MODEL AND SERIAL NUMBER OF 2
Some items are included for illustrative purposes only and in certain instances may not be available.
Model: 224ZT, 236ZT, 248ZT, 260ZT, 272ZT GAS GRIDDLE
Fig No Part Number Quantity Description Application
1 2C-20201-06 2 WSHR PLT 5/16 FLAT USS ALL
2 2C-20301-06
10
NUT HEX 5/16-18 PLTD
224ZT
14 236ZT
18 248ZT
22 260ZT
26 272ZT
3 K9-Z4793-W1
2
BULB CLAMP - EZONE
224ZT
3 236ZT
4 248ZT
5 260ZT
6 272ZT
4 K9-Z4794-W1
2
BULB HOLDER - EZONE
224ZT
3 236ZT
4 248ZT
5 260ZT
6 272ZT
5 2C-20202-08
8
WSHR PLT 5/16 LOCK SPLIT
224ZT
12 236ZT
16 248ZT
20 260ZT
24 272ZT
6
K9-141-171-W2
2
GRIDDLE BURNER ASSY
224ZT
3 236ZT
4 248ZT
5 260ZT
6 272ZT
K9-141-171-3W2
2
GRIDDLE BURNER ASSY-30” DEEP
224ZTD
3 236ZTD
4 248ZTD
5 260ZTD
6 272ZTD
7
K9-141-181
2
BAFFLE UNDER BURNER
224ZT
3 236ZT
4 248ZT
5 260ZT
6 272ZT
K9-141-182
1
BAFFLE BETWEEN BURNERS
248ZT
2 260ZT
3 272ZT
8
K9-EZG-382-W04
1
FLUE 1’ - GRIDDLE W/CSG24 260ZTHG
K9-EZG-382-W8 FLUE BRACKET-GRID W/CSG24
K9-141-271-2 FLUE 2’ 224ZT
K9-141-271-3 FLUE 3’ 236ZT
K9-141-271-4 FLUE 4’ 248ZT
K9-141-271-5 FLUE 5’ 260ZT
K9-141-271-6 FLUE 6’ 272ZT
K9-141-271-W8 FLUE 2’ - EZN GRID W/CSE12 224ZTCHG, 224ZTCHE
9 2C-20119-01 1 EYEBLTFORGD/SHLDR1/4-20X1 ALL
10 K9-141-122-W3 1 RIGHT SIDE ALL

2M-Z1785; ENVIROZONE-TSTAT GAS GRIDDLE
IMPORTANT: WHEN ORDERING, SPECIFY VOLTAGE OR TYPE GAS DESIRED PAGE 2
INCLUDE MODEL AND SERIAL NUMBER OF 2
Some items are included for illustrative purposes only and in certain instances may not be available.
PARTS LIST April 23, 2015, Rev. C
Model: 224ZT, 236ZT, 248ZT, 260ZT, 272ZT GAS GRIDDLE
11 K9-141-107-1 1 LEFT SIDE STD ALL
12 2A-72500-20 4 LEG 10.25 WITH ADJ HEX ALL
13 2C-31007-01 2 TERM DOUBLER FEMALE ALL
14 2E-Z12020 1 SWITCH-TOGGLE 2P ST ALL
15
K9-141-231-2-W2
1
FRONT PANEL-RIGHT WELDMNT 224ZT
K9-141-231-2-W3 FRONT PANEL-ASSY RIGHT w/TIMER 248ZTC-TNAT
K9-141-231-5-W2 CONTROL PANEL ASSY-5’ MID 260ZT
K9-141-231-6-W3 CNTRL PANEL-MIDDLE ASY 6’ 272ZT
K9-141-236-W13 CONTROL PANEL - 4’ & 6” 248ZT, 272ZT
K9-141-236-W14 FRONT PANEL - LEFT 6’ 272ZT
K9-141-236-W15 FRONT PANEL - RIGHT 6” 236ZT
K9-141-236-W18 FRONT PANEL - 5’ MIDDLE 260ZT
16 Z1-70-07-0343 1 SWITCH GUARD ALL
17 2M-12-07-0038 1 LABEL ON & OFF ALL
18 2I-05-07-0013 1 BOOT SWITCH ALL
19 2R-W498-2
2
KNOB-RED METAL-INSERT.188
224ZT
3 236ZT
4 248ZT
5 260ZT
6 272ZT
20 2M-W728-W4
2
LABEL - CONTROL 200-550F
224ZT
3 236ZT
4 248ZT
5 260ZT
6 272ZT
21 2T-30402-07
2
STAT ADJ 550o 48 C/T
224ZT
3 236ZT
4 248ZT
5 260ZT
6 272ZT
22
K9-50303-18 1GRS BCKT ASSY, 141 FRT GTR 224ZT, 236ZT
2 248ZT, 260ZT, 272ZT
K9-142-251 1GREASE BUCKET ASSY 224ZTD, 236ZTD
2 248ZTD, 260ZTD, 272ZTD
23 2M-60301-43 1 DIE CAST PLT LANG SATIN ALL
24
K9-141-241-W9
1
FRONT PANEL-LEFT END 2FT 224ZT, 236ZT, 248ZT, 260ZT
K9-141-241-W8 FRONT PANEL-LEFT END 6” 272ZT
K9-141-241-W10 FRONT PANEL-LEFT w/TIMER 248ZTC-TNAT
25 2C-20602-04 2 TINNERMAN SPD NUT 1/8 DIA ALL
26 2M-W1762 2 LABEL TIMER TIMER UNITS
27 2A-20504-12 8 SPACER - NYLON .312OD x .25 TIMER UNITS
28 2J-40102-71 2 TIMER TIMER UNITS
29 2C-20301-11 8 NUT HEX 8-32 PLTD TIMER UNITS
NI 2E-31107-02-W2 1 CORDSET 14/3 15A 120V 10’ ALL
NI 2M-61122-W54 AR WIRE DIAGRAM - 224ZT ALL
NI 2P-50100-15 1GRIDDLE SCRAPER 12” CROME UNITS
NI 2P-50100-15-1 -RE-FILL REPLACEMENTS CROME UNITS
NI 2P-50100-16 1BOM AMI CLEANER CROME UNITS
NI 2P-50100-17 120” PALMYRA BRUSH CROME UNITS