Installation, Operations and Maintenance Manual for LBC Models LMO-G and LMO-E gas and electric “Mini” Rotating Rack Ovens
Rev.009 Aug 2012
LBC Bakery Equipment, Inc. 5901 23rd Drive West Suite 105 Everett, WA 98203
Toll Free: 888-722-5686 Fax: 425-642-8305 E-mail; sales@lbcbakery.com www.lbcbakery.com
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IMPORTANT FOR YOUR SAFETY
THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL GAS EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-UP AND ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL
POST IN A PROMINENT LOCATION, THE INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE OBTAINED FROM THE LOCAL GAS SUPPLIER
IMPORTANT
IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNIT AT MAIN SHUTOFF VALVE AND CONTACT THE 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
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.
IN THE EVENT OF A POWER FAILURE, DO NOT ATTEMPT TO
OPERATE THIS DEVICE.
KEEP AREA AROUND THE OVEN CLEAR OF COMBUSTIBLES. DO NOT OBSTRUCT COMBUSTION AND VENTILATION OPENINGS ON THE OVEN.
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Table of Contents |
Page 4 |
Inspect and Uncrate |
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Installation Codes |
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Model Designations |
Page 5 |
Utility Connection Points |
Page 6 |
Installation |
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Install Caster |
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Installation location |
Page 7 |
1: Gas Connections |
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2: Venting |
Page 8 |
Venting Illustration |
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Safety Considerations |
Page 9 |
3: Plumbing Connections |
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Water Supply |
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Drain Connections |
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4: Electrical Connections |
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Gas Models |
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Electric Models |
Page 10 |
Electrical Connection Illustration |
Page 11-12 |
Installation and Start-up Procedures |
Page13 |
Controls Operation |
Page14-18 |
Wiring Diagrams |
Page 19-24 |
Illustrated Parts List |
Page 25 |
Standard Warranty |
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Installation of this equipment must be performed by an authorized service representative. Prior to installation verify that all electrical and gas supplies coincide with the manufacturers data label located on the right side below the service panel.
Inspection and Un-crating
Upon receipt of shipments, all packages should be inspected, and all visible or concealed damages noted and signed for on the bill of lading. Any other damages should be reported to the carrier within 10 days. Freight damages are the responsibility of the consignee.
All orders for replacement products resulting in freight damages will be processed under LBC’s standard terms. Any reimbursement or credit is the responsibility of the freight carrier Carefully unpack the oven and place it in a work area as near to the final installation position as possible.
The LMO oven ships with the following items please inspect your shipment to ensure that these items were included.
LMO Oven Rack
Decorative hood front, sides and back pieces
Flexible gas hose, connectors and restraints
If moving the oven trough a 36” door opening it will be necessary to remove the oven door, door latch, door hinges and the decorative hood.
Installation Codes
For US Installation
The LMO oven must be installed in accordance with all State and local codes and:
National Fuel Gas Code, ANSI-Z223-1 (latest edition)
National Electrical Code, ANSI/NFPA70 (latest edition)
For Canadian installation
The LMO oven must be installed in accordance with all local codes and; CAN/CGA-B149.1 National Gas Installation Code
CAN/CGA-B149.1 National Fuel Gas Code
Note: The decorative trim is not intended for use as an exhaust hood.
Model Number Coding
LMO followed by G (gas models) or E (electric model) followed by 6 (6-pan rack) 0r 8 (8-pan rack) followed by S (for stand) or P (for proofer base) followed by N (for natural gas) or LP for (Propane gas) or 208, 240 or 480 (for electric models)
Sample Model Number: LMO-E8P-480: This is a 480 Volt electric oven with an 8 pan rack and a proofer base.
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Utility Connection Points and Dimensional Drawing
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Installation
The LMO oven must be installed on the ovens stand using the supplied fasteners or installed on any non-combustible surface adequate to support the weight of the appliance.
Ovens shipped with a stand must have the casters installed.
With the oven still on the shipping pallet slide the oven and stand forward and install the two front locking casters.
Move the oven and stand forward onto a pallet truck, lift the oven and stand off of the pallet and install the two rear casters.
IMPORTANT:
Gas ovens can not be mounted directly to a solid surface as the combustion air intake is from the bottom side of the oven.
ALL GAS MODELS MUST BE MOUNTED ON 6” LEGS OR OVEN STAND
The LMO oven must be sealed to the stand using an NSF approved sealant.
Gas ovens mounted on the oven stand with casters must utilize the following…
A connector that complies with the Standard for Connectors for Movable Gas Appliances, ANZI Z21.69
Or Connectors for Movable Gas Appliances, CAN/CGA-6.16
A quick disconnect device that complies with the Standard for Quick-Disconnect Devices for Use With Gas Fuel, ANZI Z21.41
Or Quick Disconnect Devices for Use with Gas Fuel, CAN1-6.9
Adequate means must be provided to limit the movement of the appliance.
Select a location that has a smooth level surface and has adequate room to operate the appliance (see Illustration – 1 for oven dimensions and utility connection points)
Ensure that the oven is installed on a level surface. If the unit is mounted on the movable oven stand, loosen the caster bolt and place shims under the base until level, re-tighten the caster bolts.
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1: Gas Connections
CAUTION: Gas supply connections and any pipe joint compound must be resistant to the action of propane gases.
The LMO-G is an indirect gas fired oven consisting of a heat exchanger that consists of 15 (fifteen) in-shot burners and tubes totaling 90,000 BTU/HR.
Verify that the gas supply matched the type listed on the data label. If the incoming pressure exceeds ½ psig (3.45kPa) 14” W.C. install a pressure regulator before the oven’s gas valve.
Codes require installation of a gas shutoff valve in the gas line ahead of the oven. The gas supply line must be at least the equivalent of ¾” iron pipe. Corrugated lines should not be used.
Connect the gas supply line to the ¾” NPT incoming gas connection located at the rear of the oven. Ensure that the pipes are free and
2: Ventilation
Ventilation requirements vary with each installation and must comply with applicable portions of the National Fire Protection Association Standard 96 as well as any and all State and local codes.
Exhaust Fan Interlock
A connection point (5 AMPS Max.) is provided for indirect vent (Exhaust Hood) or optional direct vent (Draft Hood). It is located in the electrical connection box at the right rear side of the oven. Consult local codes for vent interlock requirements.
Indirect Vent (Installed under an exhaust hood) – Standard installation configuration.
Locate the oven under an exhaust hood with adequate overhangs and exhaust rates to completely capture the byproducts of combustion discharged from the flue. From
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clear of any dirt or obstruction. If the oven is supplied with a flexible gas line, secure it to the oven and wall per the manufacturers instructions.
Verify that the line pressure before the gas valves stays between 5” and 14” W.C. for natural gas or 11” and 14” for W.C. for propane gas – both with and without the burner firing.
WARNING: PRIOR TO LIGHTING, LEAK TEST ALL JOINTS AND FITTINGS USING SOAPY WATER. DO NOT LEAK TEST USING AN OPEN FLAME.
Testing the gas supply;
When the supply pressure exceeds ½ psig the oven and its individual shut-off valve must be disconnected from the supply piping
When the supply pressure is ½ psig or less, the ovens should be isolated from the gas supply system by closing its individual manual shutoff valve.
the termination of the flue to the filters of the hood venting system a clearance of 18” must be maintained. The exhaust hood fan can be directly interlocked to the oven (consult the wiring diagram for terminal location*).
Direct Vent (Draft Hood) – Optional configuration
Move the oven into position and attached the customer supplied exhaust ducting and draft diverter.
Verify that the air is being drawn into the bottom of the draft diverter while the burner is firing, using a draft gauge or smoke test. Using a draft gauge, verify that a draft of between 0.03” – 0.11” W.C. is maintained at a point 6” above the draft diverter’s upper collar. Any exhaust fan or draft inducer used to maintain system suction must be operating when the oven is turned on. (See exhaust fan interlock.)
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Sample Installation
SAFETY CONSIDERATIONS:
Your LBC BAKERY 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 the operation and maintenance of the subject units.
B)All operations, maintenance and repair of the subject units must be performed by properly trained and qualified personnel, and all such operations, maintenance and repair must be performed in a diligent manner. It is the responsibility of the owner/operator to insure proper training and diligence of any person coming into contact with either the subject units or the output (product, exhaust or otherwise) of the subject units. It is the responsibility of the owner/operator to ensure that the subject units are 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 the sole responsibility of the user to establish, schedule and enforce the frequency and scope of these programs in keeping with recommended practice and with due consideration given to actual operating conditions. For suggested cleaning schedule visit our Website @ www.lbcbakery.com First click on Manuals, then click on Equipment Cleaning under Operation and Programming Manuals, or call LBC @ 1- 888-722-5686 to have one faxed.
D)The units must be operated within limits, which will not exceed the working limits of any component.
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