Lang LG-24 User manual

Lang Manufacturing Company 6500 Merrill Creek Parkway Everett, WA 98203
Phone: [phone] Fax: [phone]
www.langworld.com ©Copyright 2000
Service Manual for the Lang Models:
LG-24S, LG-36S, LG-48S, LG-60S, LG-72S,
LG-24, LG-36, LG-48, LG-60, LG-72
XL-24, XL-36, XL-48
PB-12, PB-24

1
TABLE OF CONTENTS
CHAPTER PAGE
1. TABLE OF CONTENTS .......................................................................1
2. READ FIRST ........................................................................................2
3. EQUIPMENT DESCRIPTION...............................................................4
4. INSTALLATION ....................................................................................5
5. START-UP............................................................................................7
6. GENERAL OPERATION ......................................................................8
7. SEQUENCE OF OPERATION .............................................................10
8. TROUBLESHOOTING .........................................................................11
9. TECHNICAL DATA...............................................................................13
10. WIRING DIAGRAMS ............................................................................15
11. PARTS LIST.........................................................................................23

2
IMPORTANT READ FIRST IMPORTANT
CAUTION: EACH UNIT IS EXTREMLY 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
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 behind access panel between
controls and grease drawer. The grill 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 grill, and a faint
odor from the smoke. This is normal for a new grill 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.

3
IMPORTANT READ 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 station directory or call the factory at
1-800-224-LANG (5264), or WWW.LANGWORLD.COM for
the service station 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.

4
EQUIPMENT DESCRIPTION
ELECTRIC GRIDDLE
EXTERIOR
♦ Griddle
 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.
♦ XL Hood
 The Hood dimension (including griddle) are 22¼” (55.88cm) High with hood down, 44¾”
(113.67cm) High with hood up, 31½” (80cm) Deep, and 24” (61cm) Wide.
 The Hood wrap is constructed of stainless steel and uses infrared heat to broil the product.
♦ Pane Bella
 The Pane Bella dimensions are 12” (30.5cm) High with hood down, 24.5” (62.25cm) with hood up,
16” (40.5 cm) Deep and width is dependent on model number.
CONTROLS
The Electric Griddle is available either with the Lang Accu-Temp (LG-24, 36, 48, 60, 72) controls or the
Lang Selectronic (LG-24S, 36S, 48S, 60S, 72S):
♦ LG (ACCU-TEMP)
 Each twelve-inch section has its own easy to use manual thermostat with a temperature range from
175°F to 450°F in 50°increments.
 Each twelve-inch section has a set of 6 K.W. elements for high efficiency, quick recovery and
outstanding performance.
♦ LGS (SELECTRONIC)
 Each twelve-inch section has its own temperature selector switch that snaps into place to lock in
any temperature from 175°F to 450°F in 25°increments.
 Each twelve-inch section of the griddle is controlled by an area sensitive RTD probe, which can
sense and react to a temperature change of +/- 4°F.
 Each twelve-inch section has a set of 6 K.W. elements for high efficiency, quick recovery and
outstanding performance.
♦ Pane Bella
 Each twelve-inch section has its own easy to use manual thermostat with a knob.
 Each 12” section has its own 900 Watt element in the bottom and 720 Watt in the top.

5
INSTALLATION
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.
Prior to un-crating, move the range 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.
ELECTRICAL CONNECTION
LG / LGS
There is one power supply connection on 2, 3 and 4 foot griddles. There are two power supply connections on 5 and
6-foot griddles. Refer to the power supply chart in the Technical Data portion of this manual, for proper power
supply size.
There is (1) one 1 1/4-inch conduit knockout on 2, 3, and 4-foot griddles located at the rear of the griddle, through
the back and the bottom of the griddle body. There are (2) two 1 1/4-inch conduit knockouts provided on the 5 and 6
foot griddles. Use a supply wire suitable for at least 90 degree centigrade.
The model LG-S griddle is shipped from the factory wired for 208/240 or 480 volts, the 208/240 griddle is a dual
voltage design. Jumper wires on terminal strip next to the main power supply connection determine the griddle
voltage. For a 208 volt power supply, leave the jumpers in place. For a 240 volt power supply disconnect the
jumpers as indicated on the tag to the terminal strip. The 480 volt griddle can be operated on 480 volts only.
PB
All PB-24 grills are supplied with a 48” 10 gauge cord and a NEMA L6-30P plug.
The PB-12 grill is supplied with a 48” 12 gauge cord and a NEMA L6-30P plug on the 240 Volt and NEMA 5-15P
plug on the 120 Volt
XL HOOD
Power connection can be made at a two pole terminal block located next to the power connection on the grill.
All XL Hoods are single phase and come in either 208 Volt or 240 Volt.

6
INSTALLATION CONT’D
PHASING
LG / LGS
All griddles are shipped from the factory set up for a three- phase service. Rearrange the wires in the power supply
terminal block to convert the griddle to single phase. Rephasing the griddle is not chargeable to Lang Manufacturing
Company as warranty. To convert to single phase follow the chart below.
Three Phase Single Phase
Model
Number Line 1 Line 2 Line 3 Line1 Line 2
LG-24 1,4 2 3 1,3 2,6
LG-36 1,4 2,5 3,6 1,3,5 2,4,6
LG-48 1,4,7 2,5,8 3,6,9 1,3,5,7 2,4,6,8
LG-60 #1 1,4 2,5 3,6 1,3,5 2,4,6
LG-60 #2 1,4 2 3 1,3 2,6
LG-72 #1 1,4 2,5 3,6 1,3,5 2,4,6
LG-72 #2 1,4 2,5 3,6 1,3,5 2,4,6
PB
All griddles are shipped single phase.

7
START-UPS
ELECTRIC GRIDDLES
Electric Griddle Start-Up
1) Verify connections at plug and terminal block
2) Incoming Volt - Single Phase L1-L2______
Three Phase L1-L2______ L2-L3______ L3-L1______
3) Amp draw L1______
L2______
L3______
6) Verify actual temperature at 350 °F ________ °F.
Note: Install thermocouple wire in center of 12 section for that control area.
Let griddle cycle off and on 3 times before recording temperature.
Model #_______ Date_______ Serial #________
Store #___________ Tech Name___________________
Contact_______________ Company _________________________
Store Phone #___________ Service Company Phone #______________
Address_____________________
______________________
______________________

8
GENERAL
GENERAL
The suggested time and temperature chart (below) is provided as a guide for the products
listed only.
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.
SUGGESTED TIMES AND TEMPERATURES
PRODUCTS TEMPERATURE
(
F
)
TIME (MIN)
HAMBURGER 350
2
p
atties
p
er LB 350 6 to 8
4
p
atties
p
er LB 350 4 to 6
6
p
atties
p
er LB 350 3 to 4
STEAKS
1/2 to 3/4 inch thick, cooked medium 375 5 to 7
3/4 to 1 inch thick, cooked medium 375 8 to 10
Lamb Cho
p
s 350 6 to 8
Pork Cho
p
s 350 6 to 8
Salmon 350 6 to 8
Halibut 325 6 to 8
Sna
pp
er 325 6 to 8
Hashbrown Potatoes 375 3 to 4
Bacon 350 3 to 4
Sausa
g
e Links or Patties 350 3 to 4
Ham
(
Pre-cooked
)
375 2
E
gg
s 275 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.
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.

9
GENERAL CONT’D
OPERATIONS
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 by a temperature
controller. The temperature control sensor is mounted in the center of each cooking
section under the griddle plate.
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 slower.
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, first use the griddle surface on which a previous load was not
placed. This will help insure the proper griddle temperature.

10
SEQUENCE OF OPERATION
LG Griddle
208/ 240 VAC to Thermostat.
Thermostat turned on.
208/ 240 VAC to Elements.
LGS Griddle
Power switch turned to on:
208/240 VAC to poles of each sections contactor.
240/24 Transformer energized.
Individual section switch turned to on.
24VAC across pins 9 & 7 on computer board.
Temperature set.
24 VAC across pins 8 & 6 on computer board.
Contactor energizes.
Elements heat up.
Pane Bella Griddle
120/208/240 VAC to 12 Pole terminal strip.
120/208/240 VAC to Thermostat.
Temperature set.
120/208/240 VAC to elements.
Elements heat up.
XL HOOD
Power switch turned to on:
208/240 VAC to poles of contactor.
Hood lowered.
208/240 to coil of contactor.
208/240 to elements.

11
TROUBLESHOOTING
LG Griddle:
PROBLEM SOLUTION
Whole griddle will not heat  Confirm that Circuit breakers are on.
 Confirm that griddle is connected properly.
One Section will not heat  Confirm that elements have power.
 Confirm that thermostat is operating properly.
LGS Griddle
PROBLEM SOLUTION
Whole Griddle will not heat  Confirm that incoming power is correct.
 Confirm that power switch is operating properly.
 Confirm that Transformer is operating properly.
One section will not heat  Check Probe for normal operation.
 Check contactor for normal operation. (24 VAC, 11Ω)
 Confirm that board heat call light (amber light) is on.
If no amber light is detected:
 Check for 24 VAC across pins 9 and 7.
If voltage is not present:
 Check wiring from transformer.
If voltage is present:
 Check 12-position switch.
 Confirm that probe is operating.
If amber light is detected:
 Check for 24 VAC across pins 6 and 8.
If 24 VAC is not present:
 Replace Circuit board.
If 24 VAC is present:
 Check door switch for normal operation.

12
TROUBLESHOOTING CONT’D
Pane Bella
PROBLEM SOLUTION
Grill will not heat  Confirm that incoming power is correct.
 Check thermostat for normal operation.
 Check elements for proper operation.
 Confirm that there are no breaks in the wires.
XL Hood
PROBLEM SOLUTION
Hood will not heat  Confirm that incoming power is correct.
 Check elements for proper operation.
 Confirm that power switch is operating properly.
 Check Hi-Temp switch for normal operation.
 Check Tilt switch for normal operation.
 Confirm that contactor is operating properly.

13
TECHNICAL DATA
ELEMENT RESISTANCE
 208 / 240 Volt I/S 11030-29 LG Griddle
9 Ω/ 9.6 Ω23 / 25 Amps
 208 Volt O/S 11030-30 LG Griddle 29 Ω8 Amps
 480 Volt 11030-31 LG Griddle 38 Ω12.5 Amps
 120 Volt Bottom 11030-51 PB Griddle 13.5 Ω9 Amps
 120 Volt Top 11030-50 PB Griddle 17 Ω7 Amps
 208/240 Volt Bottom 11030-40 PB Griddle 48 Ω/ 64 Ω4 / 3 Amps
 208/240 Volt Top 11030-41 PB Griddle 60 Ω/ 80 Ω3.5 / 3 Amps
 104 Volt 11160-26-1 XL Hood 11 Ω9.5 Amps
 120 Volt 11160-27-1 XL Hood 14.5 Ω8.3 Amps
TRANSFORMER RESISTANCE
TRANSFORMER Part # Input Primary Secondary Output
 240/24 Volt 31400-10 240 Volt 73.8 Ω1 Ω24 Volt
CONTACTOR RESISTANCE
CONTACTOR Part # Coil
 2 Pole 24 Volt coil 30701-04 11 Ω
GRIDDLE LINE AMPERAGE, AND WATTAGE
NOMINAL AMPS PER LINE
THREE PHASE
SINGLE PHASE
208 Volt 240 Volt 480 Volt
MODEL
NUMBER
TOTAL
K.W.
L1 L2 L3 L1 L2 L3 L1 L2 L3
208V 240V
24” 12.0 50.0 28.8 28.8 43.3 25.0 25.0 21.7 12.5 12.5 57.7 50.0
36” 18.0 50.0 50.0 50.0 43.3 43.3 43.3 21.7 21.7 21.7 86.5 75.0
48” 24.0 75.0 75.0 50.0 65.0 65.0 43.3 32.5 32.5 21.7 115.4 100.0
#1 18.0 50.0 50.0 50.0 43.3 43.3 43.3 21.7 21.7 21.7 86.5 86.5
60” #2 12.0 50.0 28.8 28.8 43.3 25.0 25.0 21.7 12.5 12.5 57.7 50.0
#1 18.0 50.0 50.0 50.0 43.3 43.3 43.3 21.7 21.7 21.7 86.5 75.0
72” #2 18.0 50.0 50.0 50.0 43.3 43.3 43.3 21.7 21.7 21.7 86.5 75.0
XL HOOD LINE AMPERAGE, AND WATTAGE
AMPS
SINGLE PHASE
TOTAL K.W
208 VOLT 240 VOLT
6.0 28.9 25.0

14
TECHNICAL DATA CONT’D
PROBE RESISTANCE
TEMP RESISTANCE VOLT DROP TEMP RESISTANCE VOLT DROP
70°556 Ω1.11 290°881 Ω1.76
80°569 Ω1.14 300°897 Ω1.79
90°583 Ω1.17 310°914 Ω1.83
100°596 Ω1.19 320°931 Ω1.86
110°610 Ω1.22 330°948 Ω1.90
120°623 Ω1.25 340°965 Ω1.93
130°637 Ω1.27 350°983 Ω1.97
140°651 Ω1.3 360°1000 Ω2.00
150°665 Ω1.33 370°1018 Ω2.04
160°678 Ω1.36 380°1036 Ω2.07
170°694 Ω1.39 390°1054 Ω2.11
180°709 Ω1.42 400°1072 Ω2.14
190°724 Ω1.45 410°1090 Ω2.18
200°739 Ω1.48 420°1109 Ω2.22
210°754 Ω1.51 430°1127 Ω2.25
220°769 Ω1.54 440°1146 Ω2.29
230°785 Ω1.57 450°1165 Ω2.33
240°800 Ω1.60 460°1184 Ω2.37
250°816 Ω1.63 470°1204 Ω2.41
260°832 Ω1.66 480°1223 Ω2.45
270°848 Ω1.70 490°1243 Ω2.49
280°864 Ω1.73 500°1263 Ω2.53
NOTE
Probe is factory checked at 350 °F. Must be completely disconnected from circuit board when measuring
probe resistance.

15
WIRING DIAGRAM LG 208/240

16
WIRING DIAGRAM LG 480

17
WIRING DIAGRAM LG-S 208/240

18
WIRING DIAGRAM LGS 480

19
PB-24 208/240 WIRING DIAGRAM