LBC Bakery Equipment LMO-Max-G Service Manual
1 © Copyright 2017
MODELS LMO Max-E & LMO Max-G
ROTATING RACK OVEN
INSTALLATION and SERVICE MANUAL
GAS OVENS: POST IN A PROMINENT LOCATION, THE INSTRUCTIONS TO BE
FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION
SHALL BE OBTAINED FROM THE LOCAL GAS SUPPLIER.
RETAIN THIS MANUAL FOR FUTURE REFERENCE.
LBC BAKERY EQUIPMENT, INC.
6026 31st Ave NE
Tulalip, WA 98203, USA
Toll Free: 888-722-5686
E-mail: sales@lbcbakery.com
www.lbcbakery.com Rev E 1/2017
2 © Copyright 2017
R READ FIRST (Part 1 of 2) .
ALL OPERATORS OF THIS EQUIPMENT MUST BE OF LEGAL AGE TO OPERATE
SUCH EQUIPMENT AND MUST BE FAMILIAR WITH AND UNDERSTAND ALL
CAUTION LABELS.
READ, UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND WARNINGS
CONTAINED IN THIS MANUAL. IT IS THE RESPONSIBILITY OF THE
OWNER/OPERATOR OF THIS APPLIANCE TO TRAIN, SUPERVISE AND AUTHORIZE
ANY PERSON DESIGNATED AS AN OPERATOR. ALL OPERATORS MUST READ
AND UNDERSTAND THIS MANUAL.
IMPORTANT
GAS OVENS: IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNIT
AT MAIN SHUTOFF VALVE AND CONTACT YOUR LOCAL GAS COMPANY OR
GAS SUPPLIER FOR SERVICE.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
IN THE EVENT OF A POWER FAILURE, DO NOT ATTEMPT TO OPERATE THIS
DEVICE.
KEEP AREA AROUND THE OVEN CLEAR OF COMBUSTIBLES.
GAS OVENS: DO NOT OBSTRUCT COMBUSTION AND VENTILATION OPENINGS
ON THE OVEN.
WIRING SCHEMATICS ARE LOCATED BEHIND THE APPLIANCE CONTROL PANEL
IN CONTROL COMPARTMENT.
WARNING
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR
MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH.
DO NOT OPERATE, CLEAN OR SERVICE THIS MACHINE BEFORE READING
THIS MANUAL AND UNDERSTANDING COMPLETELY THE SAFETY
INSTRUCTIONS FOUND HEREIN AND ON THE MACHINE’S LABELS.
3 © Copyright 2017
R READ FIRST (Part 2 of 2) .
WARNING
THIS APPLIANCE IS EQUIPPED WITH A THREE-PRONG (GROUNDED) PLUG
FOR YOUR PROTECTION AGAINST SHOCK HAZARD. PLUG DIRECTLY INTO A
THREE-PRONG RECEPTACLE. DO NOT CUT OR REMOVE THE GROUNDING
PRONG FROM THIS PLUG.
WARNING
DISCONNECT FROM POWER SOURCE WHEN CLEANING AND/OR SERVICING
THIS MACHINE.
WARNING
NEVER ATTEMPT TO CLEAN THIS MACHINE WHILE IT IS HOT OR HEATING AS
RISK OF SERIOUS INJURY COULD RESULT.
WARNING
NEVER OPERATE THIS MACHINE WITH SAFETY COVERS OR INSPECTION
PLATES REMOVED OR WITH SAFETY SWITCHES INOPERATIVE.
4 © Copyright 2017
TABLE of CONTENTS .
Read First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Gas Ovens: Lighting & Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Specifications
Electric Ovens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Gas Ovens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gas Ovens: Natural/Propane Gas Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Startup and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pressure Panel Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Control Operation and Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Temperature Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Illustrated Parts Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
LBC Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5 © Copyright 2017
GAS OVENS: LIGHTING & SHUTDOWN .
Lighting Instructions
After Long-Term Shutdown
1. Turn on the gas supply to the oven.
2. Open the gas valve access door located behind the control panel. Switch the gas valve to
“ON.”
3. Keep the gas valve door open until the burner lights the first time.
WARNING
IF THE BURNER DOES NOT LIGHT, TURN OFF ALL GAS TO THE
OVEN FOR 5 MINUTES AND THEN BEGIN AT STEP 1.
Daily Use
1. Press the “Power” button to turn the oven on. Close the oven door.
2. Set the oven temperature to the desired operating temperature by pressing the up or down
arrow buttons next to the “Set Temperature” display.
Shutdown Instructions
Daily Use
Press the “Power” button to turn the oven off.
Long-Term Shutdown
Open the gas valve access door located behind the control panel. Switch the gas valve to
“OFF” and turn off the gas supply to the oven.
6 © Copyright 2017
ELECTRIC OVENS: SPECIFICATIONS .
Installation Requirements
Oven ships fully assembled and will fit through a 36” door opening with removal of the oven
door assembly, valence and back panel. Check local codes to determine if the oven needs to be
installed under a hood.
Clearance to Combustibles: 1” from back and sides, 18” from top
Flooring: Appliance must be installed on a floor of noncombustible construction with
noncombustible flooring and surface finish and with no combustible material against the
underside thereof, or on noncombustible slabs or arches having no combustible material
against the underside. Such construction shall in all cases extend not less than 12” beyond the
equipment on all sides.
Water Quality Requirements
Utility Requirements
7 © Copyright 2017
GAS OVENS: SPECIFICATIONS .
Installation Requirements
Oven ships fully assembled and will fit through a 36” door opening with removal of the oven door
assembly, valence and back panel.
Clearance to Combustibles: 1” from back and sides, 18” from top
Flooring: Appliance must be installed on a floor of noncombustible construction with
noncombustible flooring and surface finish and with no combustible material against the
underside thereof, or on noncombustible slabs or arches having no combustible material against
the underside. Such construction shall in all cases extend not less than 12” beyond the
equipment on all sides.
Water Quality Requirements
Utility Requirements
8 © Copyright 2017
SAFETY CONSIDERATIONS .
Your LBC Bakery Equipment oven was manufactured to rigid standards. The oven is ETL listed
as a unit, and meets applicable safety standards.
A) The responsibility of the manufacturer is to supply suitable, comprehensive
instructions and recommendations for operation and maintenance of appliance.
B) All operations, maintenance and repair of oven must be performed by properly trained
and qualified personnel, and all operations, maintenance and repair must be
performed in a diligent manner. It is responsibility of owner/operator to ensure
proper training and diligence of any person coming into contact with either oven or
output (product, exhaust or otherwise) of oven. It is responsibility of owner/operator
to ensure oven is installed and operated in accordance with OSHA Standard 1910.263.
C) A regular periodic program of cleaning, inspection and maintenance must be
established and comprehensive maintenance records maintained. It is sole
responsibility of user to establish, schedule and enforce frequency and scope of these
programs in keeping with recommended practice and with due consideration given to
actual operating conditions.
D) The units must be operated within limits which will not exceed working limits of any
component.
9 © Copyright 2017
RECEIVING ..
CAUTION
THIS APPLIANCE WEIGHS MORE THAN 1000 LBS. 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 ITS PACKING MATERIALS AND MOVE IT TO THE PLACE OF INSTALLATION.
NOTE: IF REQUIRED, YOU CAN REMOVE THE INNER RIGHT WALL COVER AND
REMOVE THE STEAMER MASS IN FOUR SECTIONS.
Upon receiving the appliance, immediately check for damage (both visible and concealed) and loss.
Visible damage must be noted on the freight bill at the time of delivery and signed by the
carrier’s agent. Concealed damage or loss means damage or loss which does not become apparent
until the merchandise has been uncrated. If concealed damage or loss 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 LBC Bakery Equipment, Inc.; you must file your own claim with the carrier.
10 © Copyright 2017
INSTALLATION (Part 1 of 4) .
General Information
This appliance, when installed, must be electrically grounded in accordance with state and local
codes, or in the absence of local codes, with the National Electrical Code (ANSI/NFPA 70) or the
Canadian Electrical Code (CSA C22.2 No. 3, latest edition) as applicable.
The appliance requires some assembly by an authorized LBC trained service technician.
Do not enclose the top of the appliance to other construction. The top of the oven must be
accessible for service and must not be enclosed or covered. This clearance may be gained by
removing baffles, filters and other components, provided that removing the components does not
create a hazard. Gas Ovens: The top of the oven must also be open and have adequate air supply for
combustion.
WARNING
THIS APPLIANCE MUST BE INSTALLED WITH A MINIMUM OF 1 INCH CLEARANCE FROM
SIDES AND BACK AND 18 INCHES CLEARANCE FROM THE TOP TO COMBUSTIBLE
SURFACES.
WARNING
THIS APPLIANCE MUST BE INSTALLED ON A NON-COMBUSTIBLE FLOOR EXTENDING
12 INCHES BEYOND THE APPLIANCE, WITH NON-COMBUSTIBLE CONSTRUCTION
UNDER THE FLOOR.
General Information – Gas Ovens
This appliance must be installed under a ventilation hood.
This appliance must be connected to a gas shutoff valve in accordance with CSA 9.1-M97 – ANSI
Z21.15-1997 and Addenda CGA 9.1 a-2001 – Z21.15a-2001, Manually Operated Gas Valves for
Appliance, Appliance Connector Valves and End Valves.
The installation of this appliance must conform with local codes, or in the absence of local codes,
with the National Fuel Gas Code (ANSI Z223.1/NFPA 54) or the Natural Gas and Propane Installation
Code (CSA B149.1) as applicable, including:
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.
The appliance must be isolated from the gas supply piping system by closing its individual shutoff
valve during any pressure testing of the gas supply piping system at test pressures equal to or less
than 1/2 psi.
This appliance is configured to operate on natural gas or propane gas. A gas conversion kit is
available for this appliance. See the name plate on the appliance to determine if the appliance is
configured for natural gas or propane gas. For conversion instructions, see the “Natural/Propane Gas
Conversion” section of this manual.
11 © Copyright 2017
INSTALLATION (Part 2 of 4) .
Uncrating and Moving
1. Move oven to area where it is to be installed. NOTE: If the oven is to be moved through a 36”
door, see section directly below.
2. Disassemble crate. Use caution to avoid damage to oven with pry bars or nail removers.
3. Remove plastic wrap and padding from outside of oven. Remove components from inside of
the oven.
4. Use a fork lift to lift oven off of shipping skid. Slide forks under outer wall of oven. Do not lift
at middle of oven floor. As an alternate method, oven is equipped with lifting eyes on top.
Connect a chain or lifting strap capable of lifting 2000 pounds to the two lifting eyes to raise
oven off of skid. Place oven on floor close to its final location.
Moving Oven through a 36” Doorway
1. Disassemble crate. Use caution to avoid damage to oven with pry bars or nail removers.
Remove plastic wrap and padding from outside of oven. Remove components from inside of
the oven.
2. Remove top access cover of oven. Remove two screws on top of forward valance, then tilt
access cover forward and lift it out.
3. Open loading doors. Remove door latch cam follower.
4. Remove valance assembly by removing the four screws attaching it to side trim. Slide the
valance forward.
5. Remove top trim.
6. Remove screw attaching magnetic reed door switch to front of oven above control. Allow
switch to hang in position.
7. Remove door assembly.
WARNING
DOOR ASSEMBLY IS HEAVY. USE EVERY PRECAUTION TO AVOID
PINCHING FINGERS. USE ASSISTANCE TO MOVE DOOR ASSEMBLY.
a. Remove the two screws attaching the lower door hinge to the front of the oven on both
doors.
b. Remove the screws connecting the oven floor to the threshold.
c. Remove the four screws connecting the door mechanism to the front of the oven at the
top of the door assembly. Use caution to keep fingers out of pinch points.
d. Carefully move door assembly away from front of oven without tilting it. Wrap door
assembly with stretch wrap, rope or tape to keep doors from opening or moving.
e. Prop door in a safe location. Make sure it will not fall.
8. Gas Ovens: Remove two screws from gas inlet pipe bracket at back of oven. Push gas pipe
forward so it clears door opening.
9. Remove power cord and rear panel from oven.
10. Move the oven through doorway sideways. NOTE 1: Oven weighs more than 1000 lb. If
required, you can remove inner right wall cover and remove steamer mass in four sections.
NOTE 2: Oven floor can be removed if necessary to lift oven from the inside.
11. Replace all components removed in steps 1 through 10.
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