Lang 124CMW Owner's manual

These appliances are intended to be used
for commercial applications, for example;
in kitchens for restaurants, canteens,
hospitals, and in commercial enterprises
such as bakeries, butcheries, etc., but not
for continuous mass production of food.
®
ELECTRIC
CHEESEMELTER
124CMW, 136CMW, 148CMW
Installation and Operation
Instructions
2M-60803-1 REV D (07-23)
124CMW shown

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
TABLE OF CONTENTS............................................................................... 3
READ FIRST....................................................................................................4
EQUIPMENT DESCRIPTION..................................................................... 6
UNPACKING................................................................................................... 7
INSTALLATION..............................................................................................8
OPERATION................................................................................................... 11
MAINTENANCE & CLEANING PROCEDURES.................................. 13
TROUBLESHOOTING................................................................................. 14
WIRING DIAGRAMS.................................................................................... 16-17
EXPLODED VIEWS...................................................................................... 18-19
PARTS LISTS.................................................................................................. 20-22

4
IMPORTANT READ FIRST IMPORTANT
CAUTION:
EACH UNIT IS EXTREMELY HEAVY. FOR SAFE HANDLING,
INSTALLER SHOULD OBTAIN HELP AS NEEDED, OR EMPLOY
APPROPRIATE MATERIAL 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 THE
MELTER WILL BE LOCATED MUST BE DESIGNED TO SUPPORT
THE WEIGHT OF THE MELTER.
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. HIGH
VOLTAGE
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 on the left side of unit
towards the front. The melter 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 electric cheese melter must be installed more
than 12 inches above any cooking surface and never
above any open burners or charbroilers.
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 o the
melter, and a faint odor from the smoke. This is
normal for a new melter 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
IMPORTANT READ FIRST IMPORTANT
WARNING:
KEEP WATER AND SOLUTIONS OUT OF CONTROLS.
NEVER SPRAY OR HOSE CONTROL CONSOLE, ELECTRICAL
CONNECTIONS.
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.
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 800-264-7827, 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.
HIGH
VOLTAGE
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 Electric Cheese Melter:
Exterior Construction
The melter dimensions are 19.5” (49.5cm) High, 16.5” (42cm) Deep, 24”, 36”, 48” (61cm, 91cm,
122cm) wide dependent on the actual model number. The Sides, Bottom, and Rear wall are
constructed stainless steel. The melter cavity is insulated with high temperature insulation for
eciency and reduced heat loss.
Interior Construction
The interior dimension are 9.5” (24cm) High, 14.5” (37cm) Deep, 21.25”, 32”, 45.25” (54cm,
81.25cm, 115cm) wide dependent on the actual model number. The interior of the melter has
one rack that can be placed in 4 dierent positions. The interior of the melter has a weight
sensitive micro-switch for quick and easy activation.
Technical
The Cheese Melter operates on either 208V or 240V. This must be specified when ordering.
Space required from bottom is 4” (12”-22” from heated source), 0” from back and 28”, 40”, or
52” wide.

7
UNPACKING
Receiving the Melter
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 Star Manufacturing Company. File your claim
with the carrier.
Location
Prior to un-crating, move the melter 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 melter will arrive completely assembled inside a wood frame and strapped to a skid. Cut the
straps and remove the wood frame.
CAUTION:
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.
CAUTION:
ANY STAND, COUNTER OR OTHER DEVICE ON WHICH
THE MELTER WILL BE LOCATED MUST BE DESIGNED
TO SUPPORT THE WEIGHT OF THE MELTER.
CAUTION: SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK
WHEN CUT.
Remove the Melter from skid and place in intended location.

8
DANGER:
THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL
PROVIDED. FAILURE TO GROUND THE APPLIANCE COULD
RESULT IN ELECTROCUTION AND DEATH. HIGH
VOLTAGE
DANGER:
THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL
PROVIDED. FAILURE TO GROUND THE APPLIANCE COULD
RESULT IN ELECTROCUTION AND DEATH. HIGH
VOLTAGE
NOTICE:
The electric cheese melter must be installed more
than 12 inches above any cooking surface and never
above any open burners or charbroilers.
NOTICE:
The data plate is located on the left side of unit
towards the front. The melter 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.
INSTALLATION
WALL MOUNT UNITS
The unit back is not attached to the machine. It is packaged loose behind the
cheese-melter. The screws used to attach the back to the cheese-melter are screwed
into the rear edge of the machine.
Split the back into two pieces; note the pre-drilled holes in one panel. This is the
wall-mounting bracket.
Fasten the wall-mounting bracket to the wall using pre-drilled holes. Use suitable
lag screws or anchor fasteners to secure panel to the wall with the oset at the top.
Make certain that the mounting bracket is level.
Remove the screws from the rear of the cheese-melter; screw the stainless steel
portion of the back to the cheese-melter with the oset at the top.
Lift the cheese-melter and hang it on the wall-mounted bracket.
Replace the screws around the edge of the back.
Must be mounted 12 to 22 inches above any cooking surface.
Install the Heat Shield on the bottom of the unit.
This unit cannot be mounted above a charbroiler.

9
INSTALLATION CONT’D
COUNTER TOP
Split the back into two pieces.
Remove the screws from the rear of the cheese-melter; screw the stainless steel portion
of the back to the cheese-melter with the oset at the top.
Reinstall the two back halves together and replace the screws around the edge.
When installing on a counter the legs must be installed before using the unit, as they
will provide the required clearance for the bottom of the unit.
Place the unit in location, and level using leg adjustments.
Observe minimum clearances at all times.
ELECTRICAL
Electrical service routing may be made through either of two 1 1/4-inch knockouts
provided. One may be found along the bottom edge of the back panel. The second
knockout is located on the bottom of the unit.
Reference the Data Plate on the left side of the unit for amperage, voltage and phase
requirements. Insure that the power supply is sucient to meet the units power needs.
Check your local or national electrical code for fuse or circuit breaker requirements.
PHASING
All model numbers 124CM and 136CM are shipped single phase.
148CM is shipped three-phase and can be converted to single phase by moving wire #3
to L1.
ELEMENT REPLACEMENT
CAUTION: ALWAYS KEEP THE AREA NEAR THE APPLIANCE
FREE FROM COMBUSTIBLE MATERIALS.
NOTICE:
The electric cheese melter must be installed more
than 12 inches above any cooking surface and never
above any open burners or charbroilers.
1. Disconnect from power and remove shelf.
2. Remove three screws from each heater bracket.
3. Remove brackets.
4. Install the rear quartz heater (white end caps) to
the power leads on both rear sides of the unit
using the ceramic wire nuts provided.
5. The middle and front quartz heaters (red or
brown end caps) are wired together (in series)
using the ceramic wire nuts provided.
6. The middle and front quartz heaters are each
connected to a power lead using the ceramic wire
nuts provided. On 124 and 136 units, this connec-
tion will be on the left. On 148 units, these
connections will be on the left for the left set of
elements, and on the right for the right set of
elements.
7. Replace brackets removed in step 3.
8. Replace shelf removed in step 1.
9. Reconnect to power. Turn power on and check for
proper operation
SK3182 REV - (07-23)

10
INSTALLATION CONT’D
FIGURE 1
FIGURE 2
CONNECT CONNECT CONNECT
CONNECT
CONNECT
BLUE RED BLUE
RED
104V OR 120V ELEMENT 104V OR 120V ELEMENT
208V OR 240V ELEMENT
CONNECT
BLUE RED BLUE
CONNECT CONNECT CONNECT
208V OR 240V ELEMENT
104V OR 120V ELEMENT 104V OR 120V ELEMENT
208V OR 240V ELEMENT
104V OR 120V ELEMENT
CONNECT
104V OR 120V ELEMENT
CONNECT CONNECT
BLUE BLUE
RED
CONNECT
RED
SK3183 REV - (07-23)