LBC Bakery Equipment LMO-E Installation Manual

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: [phone]

E-mail; [e-mail]

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
Installation Codes
Model Designations

Page 5 Utility Connection Points

Page 6 Installation
Install Caster
Installation location

Page 7 1: Gas Connections
2: Venting

Page 8 Venting Illustration
Safety Considerations

Page 9 3: Plumbing Connections
Water Supply
Drain Connections
4: Electrical Connections
Gas Models
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

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 @ 1­888-722-5686 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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