Lang 148TT Operating instructions

Lang Manufacturing 10 Sunnen Drive St. Louis, MO 63143
Part Number: 2M-W349 Phone: [phone], Fax: [phone]
Rev. B www.langworld.com May 31, 2007
Installation,
Operation, Maintenance,
& Troubleshooting
Drop-In Teppanyaki Griddle
Model: 148TT,

2
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE.
READ, UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND
WARNINGS CONTAINED IN THIS MANUAL.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE
VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY
OTHER APPLIANCE.
POST IN A 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, OPERATING AND MAINTENANCE
INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR
SERVICING THIS EQUIPMENT.
Model #: Purchased From:
Serial #:
Location:
Date Purchased:
Date Installed:
Purchase Order #:
For Service, Call:

3
TABLE OF CONTENTS
CHAPTER PAGE
1. TABLE OF CONTENTS ...............................................................................3
2. READ FIRST .................................................................................................4
3. EQUIPMENT DESCRIPTION ......................................................................6
4. UNPACKING.................................................................................................7
5. INSTALLATION...........................................................................................8
6. INITIAL START-UP......................................................................................10
7. OPERATION..................................................................................................11
8. CLEANING & MAINTENANCE PROCEDURES......................................12
9. TROUBLESHOOTING .................................................................................13
10. PARTS LISTS................................................................................................14
11. WIRING DIAGRAMS...................................................................................15

4
IMPORTANT READ FIRST IMPORTANT
CAUTION: THE GRIDDLE 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.
CAUTION: ANY STAND, COUNTER OR OTHER DEVICE ON
WHICH GRIDDLE WILL BE LOCATED MUST BE
DESIGNED TO SUPPORT THE WEIGHT OF THE
GRIDDLE.
CAUTION: SHIPPING STRAPS ARE UNDER TENSION AND CAN
SNAP BACK WHEN CUT.
DANGER: THIS APPLIANCE MUST BE GROUNDED AT THE
TERMINAL PROVIDED. FAILURE TO GROUND THE
APPLIANCE COULD RESULT IN ELECTROCUTION
AND DEATH.
WARNING: INSTALLATION OF THE UNIT MUST BE DONE BY
PERSONNEL QUALIFIED TO WORK WITH
ELECTRICITY. 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 on top of the control box. The
griddle voltage, wattage, serial number, wire size,
and clearance specifications 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, fire extinguisher systems,
must conform to their applicable National, State and
locally recognized installation standards.
NOTICE: During the first few hours of operation you may
notice a small amount of smoke coming off the unit,
and a faint odor from the smoke. This is normal for a
new griddle and will disappear after the first few
hours of use.
CAUTION: ALWAYS KEEP THE AREA NEAR THE APPLIANCE
FREE FROM COMBUSTIBLE MATERIALS.
CAUTION: KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN
AND DRY. IF SPILLS OCCUR, CLEAN IMMEDIATELY,
TO AVOID THE DANGER OF SLIPS OR FALLS.

5
IMPORTANTREAD FIRST IMPORTANT
WARNING: 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: Service on this, or any other, LANG appliance must be
performed by qualified personnel only. Consult your
authorized service agent directory or call the factory at
[phone], or www.langworld.com For the service
agent nearest you.
WARNING: BOTH HIGH AND LOW VOLTAGES ARE 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.
CAUTION: 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.

6
EQUIPMENT DESCRIPTION
Lang Model: 148-TT
Electric Drop-In Griddle
Exterior
¾The Griddle dimensions are 52” (132cm) Wide, 26” (66cm) Deep, and 5 3/8”
(13.65cm) High.
¾The Sides, Bottom, and Rear are constructed of stainless steel.
¾The griddle surface is constructed of 1” thick highly polished steel to reduce hot and
cold spots, recovery problems, and ensured even heat through out the griddle.
Control Box
¾The Control box dimensions are 26” (66cm) Wide, 4” (10cm) Deep, and 7 1/8
(18cm) High.
¾The Sides, Bottom, and Rear walls are constructed of stainless steel.
Controls
The 148-TT Griddle comes standard with two 550°thermostats.

7
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 loss or damage which 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 Company.
File your claim with the carrier.
Location
Prior to un-crating, move the griddle as near 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 covered by
cardboard box and strapped to a skid. Remove the cardboard cover, cut the
straps and remove the wood frame.
CAUTION: THE GRIDDLE 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.
CAUTION: ANY STAND, COUNTER OR OTHER DEVICE ON WHICH
GRIDDLE WILL BE LOCATED MUST BE DESIGNED TO
SUPPORT THE WEIGHT OF THE GRIDDLE.
CAUTION: SHIPPING STRAPS ARE UNDER TENSION AND CAN
SNAP BACK WHEN CUT.
Remove griddle from skid and place in intended location.
Cabinet Preparation
Cabinet Base must have cross air ventilation. It does not matter if it is on the ends
or sides.
If vents are not installed, the controls may overheat rendering the griddle
inoperative.
For best results provide a knockout for the control panel a minimum of 12-inches
away from the element boxes on the griddle.
UNPACKING

8
INSTALLATION
DANGER: THIS APPLIANCE MUST BE GROUNDED AT THE
TERMINAL PROVIDED. FAILURE TO GROUND THE
APPLIANCE COULD RESULT IN ELECTROCUTION AND
DEATH.
WARNING: INSTALLATION OF THE UNIT MUST BE DONE BY
PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY.
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 top of the control box. The
griddle voltage, wattage, serial number, wire size, and
clearance specifications 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, fire extinguisher systems, must
conform to their applicable National, State and locally
recognized installation standards.
Installing Griddle into Cabinet
Turn the griddle over, taking care not to kink the thermostat capillary tubes.
Set the griddle on the table that it is to be installed in (leaving a hole big enough to
slip the control panel through).
Insert the control panel through the hole and out the control opening of the cabinet.
The hole must be a minimum of 12” from the griddle and such that the control box
can come out of the cabinet 18” for serviceability.
Lower the griddle plate to sit flat in the table opening.
ELECTRICAL CONNECTION
The electrical connection must be made in accordance with local codes or in the
absence of local codes with NFPA No. 70 latest edition (in Canada use: CSA
STD. C22.1).
A power connection box is provided for power connection.
This box must be installed a minimum of 18 inches away from the heating elements
in the cabinet box.
All electrical connections can be made at this box.
The range can now be connected to power.
CAUTION: BE SURE THE POWER SUPPLY VOLTAGE MATCHES THE
VOLTAGE SPECIFIED ON THE NAMEPLATE LOCATED
ON THE TOP OF THE CONTROL BOX
12”

9
Total
K.W.
Conn
Three Phase Single Phase
208 Volt 240 Volt 480 Volt 208 V 240 V
L1 L2 L3 L1 L2 L3 L1 L2 L3 L1 L2
12.0 50.0 28.8 28.8 43.3 25.0 25.0 21.7 12.5 12.5 57.7 50.0
Phasing
Three Phase Single Phase
INSTALLATION CONT’D

10
INITIAL START UP
Prior to putting any griddle into full time operation at normal cooking
temperatures, it must be thoroughly "seasoned" or dried out. Moisture absorption
in the closed spaces, in the insulation and even inside the heating elements can
cause future trouble if not properly treated.
Before seasoning the griddle it is first necessary to remove the shipping
preservative from the griddle surface. To do this set add a mild detergent to hot
water and wash the griddle plate. Rinse with a damp sponge and dry with a clean
rag.
To "season" the griddle, set the thermostat dial to 300°F Allow unit to cycle once.
Apply a thin coat of high-grade, non-salted vegetable oil to the griddle surface.
Rub the oil into the griddle surface with the flat side of a spatula or a towel. Re-
coat any dry spots that appear then wait two minutes and wipe off any excess oil.
Repeat these steps at 350°F 400°F 450°F 500°F and 550°F
NOTICE: During the first 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 first few hours of
use.

11
OPERATION
CAUTION: ALWAYS KEEP THE AREA NEAR THE APPLIANCE
FREE FROM COMBUSTIBLE MATERIALS.
CAUTION: KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND
DRY. IF SPILLS OCCUR, CLEAN IMMEDIATELY, TO
AVOID THE DANGER OF SLIPS OR FALLS.
The griddle is provided with two thermostats for controlling the middle two feet of
the griddle surface. The outside one-foot of the griddle is not directly heated.
All cooking should be done on the middle two feet of the griddle surface. All
holding should be done on outside one foot of the griddle.
The thermostats are provided with indicator lights that will go off when the griddle
section reaches the set temperature.
Turn the thermostat dials to the desired cooking temperature and allow the indicator
to cycle on and off a minimum of three times before beginning to cook.
If the product is loaded directly over the griddle thermostat the elements will react
much quicker and the unit will heat up faster. If the product is loaded to the sides
of the griddle thermostat then the reaction time for the elements to come on will be
slightly delayed.
Turn the thermostat dial to the off position at the end of the shift.

12
MAINTENANCE & CLEANING
Cleaning
WARNING: 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.
The griddle should be thoroughly cleaned at least once a week in addition to the
normal daily cleaning to insure against the accumulation of foreign material.
NOTICE: Any cleaner used should be marked: “SAFE ON
ALUMINUM”.
Electric equipment is inherently clean and sanitary, but may become unsanitary if
dirt is allowed to accumulate on it. Take advantage of the clean, sanitary features
of electric equipment, give it the regular attention that it deserves the same as any
other highly perfected machinery, to insure best results and continued high
operating efficiency.
CALIBRATION
Calibration Check
¾Place thermometer or thermocouple in the center of griddle.
¾Set thermostat to 350°.
¾Allow the griddle to Preheat for at least half an hour.
¾Note cycle on temperatures and cycle off temperatures for 3 cycles. (Red indicator
light indicates when oven is calling for heat)
¾After 3 cycles average the temperature. ( Add all six temperatures and divide by 6)
Calibration Adjustment
¾A 1/16” flat blade screwdriver with a 2” shaft is required to make adjustments on
the thermostat.
¾Maintain the oven temperature at 350°.
¾Without turning the thermostat, remove the knob.
¾Locate the adjustment screw at the base of the shaft and insert the screwdriver.
¾Grasp the shaft and turn the screwdriver. Counter clockwise to increase and
clockwise to decrease (1/8 of a turn will move the temperature 5-7 °in either
direction).
¾Reinstall the oven knob and recheck the oven temperature.

13
TROUBLESHOOTING
Symptoms
What follows is a chart of Symptoms, Possible Causes, and Remedy’s to aid in
diagnosing faults with the oven.
Refer to the Symptoms column to locate the type of failure then to the Possible
Cause for the items to be checked and the Remedy to column for possible solutions.
SYMPTOM POSSIBLE CAUSE
Griddle will not heat •No power to Unit
•Defective Thermostat
•Defective element
Product is under cooked •No power to Range
•Thermostat out of calibration
Product is burning •Thermostat out of calibration
TESTS
NOTICE: Service on this, or any other, LANG appliance must be
performed by qualified personnel only. Consult your
authorized service station directory or call the factory at
[phone], or www.langworld.com
For the service agency nearest you.
WARNING: BOTH HIGH AND LOW VOLTAGES ARE 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.
If an item on the list is followed by an asterisk (*), the work should be done by a factory
authorized service representative.
POSSIBLE CAUSE TEST
Product is cooked too long •No test available, operational condition
Failed thermostat •Verify calibration
Failed element •Remove the wires and check for continuity
across the element *
CAUTION: 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.

14
PARTS LIST May 31, 2007, Rev. B
148TT Drop-In Teppanyaki Griddle
Part No. DESCRIPTION QTY Application
2E-30500-07 Terminal Block 3-Plelrge 125 Amp 2 208V12, 240V12, 480V12
Y9-31601-01-1 Pilot Light 250Volt, 6” Lead Blk Body, w/clip 2 208V12, 240V12, 480V12
2N-11030-29 Griddle Element 208 / 240Volt O/S 4500 Watts / 5991 Watts 2 208V12, 240V12
2N-11030-30 Griddle Perimeter Element 208 Volt I/S 1257 Watts 2 208V12
2N-11030-31 Griddle Element 480 Volt 5991 Watts 2 480V12
Y9-70701-12 Knob Thermostat Blank Universal Black-assy 2 208V12, 240V12, 480V12
2R-70702-09 Dial Plt 550°F STAT, Knob 2 208V12, 240V12, 480V12
2T-30402-07 Thermostat 550°F 48” Capillary Tube 2 208V12, 240V12, 480V12
K9-DI-900 Griddle Plate 48" Teppanyaki Drop In Griddle 1 208V12, 240V12, 480V12

15
WIRING DIAGRAM 208 VOLT

16
WIRING DIAGRAM 240 / 480 VOLT