LBC Bakery Equipment LRO-1 Installation Manual

A

MODELS LRO-1 and LRO-2

Roll-in Rack Ovens

Installation and Operations Manual

REV 10/2010

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 THAT 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.

WARNING THE WATER FROM THE STEAM DRAIN OUTLET IS EXTREMELY

HOT AND MAY CAUSE SERIOUS BURNS.

NOTICE

WARNING WIRES ENTERING THE DISCONNECT MAY STILL BE LIVE EVEN

Left rear drain point is provided. Route to a floor drain. A 1”
gap must be provided between oven drain and floor drain.

WHEN THE SWITCH IS TURNED OFF. SWITCH THE MAIN BREAKER
AT THE WALL TO “OFF” WHEN SERVICING THE OVEN

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Utility Requirements

Gas Supply:

Electrical Supply:

Water Supply:

Drain:

Minimum 1” NPT Supply Line @ between 5” – 14” WC At All Time, never Exceed 14” of Supply pressure
as damage could result to the gas valve. Manifold pressure has be preset at the factory and should not
be altered.

These ovens require two electrical connections.

For the control circuit a 120 volt 12 amp circuit is required

For the convection blower motor one of the following is required

208 Volt 3-Phase @ 5 amps

240 Volt 3-Phase @ 5 amps

480 Volt 3-Phase @ 3-Amps

An optional single phase motor is available

½” NPT cold water supply 9 GPM @ 40 PSI

¾” NPT air gap drain @ 1 GPM maximum

Ventilation Equipment is Not included with the ovens

For LRO-1G models 1,520 FPM @ 530 CFM. 1.0” WC is required

For LRO-2G models 2,300 FPM @ 800 CFM 1.0” WC is required

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Select an installation location:

TO REDUCE THE RISK OF FIRE, THE APPLIANCE IS TO BE MOUNTED ON FLOORS OF NON-COMBUSTIBLE
CONSTRUCTION WITH NONCOMBUSTABLE FLOORING, SURFACE FINISH AND WITH NO COMBUSTIBLE
MATERIAL AGAINST THE UNDERSIDE THEREOF, OR ON NONCOMBUSTABLE SLABS OR ARCHES HAVING NO
COMBUSTIBLE MATERIAL AGAINST THE UNDERSIDE. SUCH CONSTRUCTION SHALL EXTEND A MINIMUM OF
12-INCHES BEYOND THE EQUIPMENT ON ALL SIDES

The oven surfaces have been rated at zero clearance to combustibles.

A clearance of 24” is recommended above the oven for servicing.

Allow adequate room at the front of the oven to load and unload racks, this area should remain free and clear of
all obstructions.

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WARNING

CAUTION

CAUTION

CAUTION

WARNING

WARNING

DO NOT REMOVE A FLAMING PRODUCT FROM THE OVEN.
SEVERE BURNS AND PROPERTY DAMAGE CAN RESULT.

INSTALLATION MUST CONFORM WITH LOCAL CODES OR IN THE
ABSENCE OF LOCAL CODES THE NATIONAL FUEL GAS CODE,
ANSIZ223.11996.

THIS APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL CODES, OR IN THE
ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL
CODE, ANSI/NFPA 70-1996.

FOR INSTALLATION IN CANADA THE INSTALLATION MUST BE IN
ACCORDANCE WITH CAN/CGA-B149.1&2 OF THE INSTALLATION
CODE, AND LOCAL CODES WHERE APPLICABLE. ALL ELECTRIC
WIRING MUST BE IN ACCORDANCE WITH THE CURRENT
CANADIAN ELECTRICAL CODE, C22.1 PART 1. GROUNDING THIS
APPLIANCE MUST CONFORM TO CANADIAN ELECTRICAL CODE,
CSA C22.2.

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.

DO NOT ALLOW ANY PART OF YOUR BODY TO BE UNDER THE
OVEN DURING THE LIFTING PROCESS. KEEP EVERYONE CLEAR
FORM THE OVEN IF IT SHOULD FALL.

NOTICE

NOTICE

WARNING

No other exhaust systems may be connected to this system. Do not
try to vent or exhaust another appliance into this hood.

Do not allow more than 14 inches pressure to be applied to the gas
valve at any time.

WHEN REMOVING THE RACK OR PRODUCT FROM THE RACK
WEAR OVEN MITTS TO AVOID SERIOUS BURNS.

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WARNING

THIS LBC BAKERY OVEN PRODUCES HUMIDITY THAT CAN CAUSE
THE INTERIOR FLOORING AND ADJACENT EXTERIOR FLOORING
TO BECOME SLIPPERY. USE EXTREME CAUTION WHEN WALKING
ON A WET OR DAMP FLOOR.

NOTICE

NOTICE

WARNING

NOTICE

NOTICE

The ambient temperature outside the oven should not exceed 104° F
(40° C). This includes the temperature of the air above and around
the oven.

During the first few hours of operation you may notice a small
amount of smoke coming off of the oven, and a faint odor from the
smoke. This is normal for a new oven and will disappear after the
first few hours of use.

WHEN THE LOADING DOOR IS OPENED, HOT AIR AND STEAM ARE
RELEASED FROM THE OVEN INTERIOR. TO AVOID BURNS OPEN
DOOR SLOWLY AND KEEP YOUR FACE AND HANDS CLEAR OF
THE OPENING. ALL INTERIOR SURFACES ARE VERY HOT. DO NOT
TOUCH ANYTHING WITHOUT OVEN MITTS.

Service on this, or any other, LBC BAKERY appliance must be
performed by qualified personnel only. Consult your authorized
service agency directory or call the factory at 1-888-722-5686 or go
to WWW. LBCBAKERY.COM for the service agent nearest you.

To maintain optimum safety and performance for LBC BAKERY
oven models LRO-1G & LRO-2G, it is recommended that a program
of scheduled periodic maintenance be implemented. It’s sole
responsibility of the user to establish, schedule and enforce such a
program. Although the actual service interval will vary depending on
the environment in which the equipment is operating, it is
recommended the following be done by a LBC BAKERY authorized
service agency at least every 6 months.

WARNING

WARNING THE WATER FROM THE STEAM DRAIN OUTLET IS EXTREMELY

WARNING WIRES ENTERING THE DISCONNECT MAY STILL BE LIVE EVEN

CAUTION

SINCE RESETS FOR THE CIRCULATION BLOWER MOTOR AND THE
LIFTER MOTOR / ROTATOR MOTOR ARE AUTOMATIC, ALL POWER
TO THE OVEN MUST BE TURNED OFF BEFORE SERVICING.

HOT AND MAY CAUSE SERIOUS BURNS.

WHEN THE SWITCH IS TURNED OFF. SWITCH THE MAIN BREAKER
AT THE WALL TO “OFF” WHEN SERVICING THE OVEN

CAUTION SHOULD BE TAKEN WHEN ENCLOSING HOOD TO
CEILING AND OVEN IS UNDER A FIRE SPRINKLER; HOOD
EXHAUST STACK WILL EMIT HEAT.

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Circulation
Blower

Vent Blower Controls

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Receiving the Oven

Upon receipt, check for freight damage

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 must be kept for inspection. Do not return damaged merchandise to LBC Bakery Company. File your
claim with the carrier.

Pre-Installation

Check the area where the oven is to be installed for the following:

• No electrical conduit or wires are to be under the floor of the oven.

• The oven must be mounted on a non-combustible surface. This includes the structure beneath the floor. The

floor must me level within 3/4”. See Fig. 1 Page 4, and above CAUTION!

• Ceiling height above the oven should be sufficient to allow servicing the lifter, vent, and blower motor

assemblies. The maximum height needed for tilting the oven up is 105 inches.

• Clear access is needed to the roof or exterior of the facility for hood exhaust. Check local codes for correct

venting.

• Caution should be taken when enclosing hood to ceiling and oven is under a fire sprinkler; hood exhaust stack

will emit heat.

• Access is needed for an air-gap drain in the rear left corner of the oven.

• Adequate space is needed in front of the oven to load and unload racks. Racks are hot and need space to cool.

• The oven needs make-up air to operate. The hood exhaust will need at least 600 CFM for Model LRO-1G

and 800 CFM for model LRO-2G.

• Local and national codes will require an electrical shut-off within a reasonable distance to the oven.

• Local and National codes will require access to a manual Gas Shut-off.

• The door swing (46.0”) will need to be clear to allow adequate loading and unloading of the oven. Check the

space next to the oven and be sure it does not interfere with the door.

Un-Crating

, both visible and concealed. Visible damage should be noted on the freight

The oven is shipped in either one or two main pieces not including hood. If oven is shipped in two pieces read and
review the assembly instructions. If it comes in one main piece the assembly instructions will not be necessary.

Move the large oven crates into the room, near where it is to be installed. Allow clear access for a forklift or lifting
apparatus at the top end of the oven. The bottom end of the oven crate is beveled at the skids.

Remove crating materials and plastic wrap from the oven. Remove the heat exchanger vent duct from the skid.

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In an area that is free from debris and on a smooth solid surface that can support the weight of the appliance:

Important: If installing multiple double rack ovens ensure that the serial numbers marked on the crates and on the
header of the ovens match. Never miss match oven halves.

1. Remove the crate from the oven skid and stand the two oven halves up-rite.

2. Remove skids from the oven halves.

3. Remove oven door (double rack ovens only).

4. Remove hood sections, floor and installation kit from oven interior.

a. The following items are packaged in the hood:

i. Hood Filters, three (3) for LRO-2 and two (2) for LRO-1

ii. Grease Cup (for use in type I applications)

For single rack ovens skip to step # 18

5. Loosen and remove the screws and floor trim at the interior base of each oven half, these piece will be used later to

secure the floor in place (Double rack ovens only).

6. Lay the oven floor down against the inside of the control half of the oven (left side).

7. Push the right half of the ovens towards the left half so that the two oven halves meet flush.

8. Secure the bottom rear of the two oven halves with the supplied 17 x 24 MM bolt and nut.

9. Secure the top rear of the two oven halves with the supplied 17 x 24 MM bolt and nut.

10. At the front of the oven, secure the oven halves at the header with the two supplied 17 x 24 MM bolts and nuts.

11. Reinstall the floor trim pieces; at this time only fully tighten a few of the screws.

12. Install the two 13 x 24 MM sharp point bolts into the interior header.

13. Begin installing the 32 – 13 x 34 MM sharp point seam bolts starting from the outside bottom rear oven the oven

working your way up the back of the oven and then across the ceiling. VERY IMPORTANT Use the supplied
Anti Seize Component to prevent the threads from stripping.

14. Stuff the seam gap with the supplied insulation, then install the seam cover plate.

15. At the top of the oven connect the 9-pin terminal block, ensuring that the pins are all securely in place.

16. Gas Ovens Only: Install the exhaust vent housing into the opening above the heat exchanger; the vent housing is

not secured with any fasteners at this time.

17. Connect the exhaust vent damper wiring number for number.

18. Remove the bake chamber vent seal.

For single rack ovens skip to Step # 20

19. On the interior of the oven secure the ceiling panel with the supplied M6 x 25 MM S/S screws.

20. Inside the control compartment, turn the leveler screw down until the oven has been raised approximately ¾” – 1”.

To prevent damage to a stone hard or epoxy floor place a small piece of steel under the screw to prevent it from
drilling into the floor.

21. Install the caster box to the lower left hinge holes.

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22. At the top of the oven turn the two caster rods clockwise until the casters support the oven weight.

23. Move the oven to its final installation location.

24. Assemble the hood:

a. Loosely attaching the two hood sides to the hood back.

b. Attach the hood sides to the body.

c. Lift the hood onto the top of the ovens and attach it to the perimeter of the oven with the supplied screws.

d. Tighten all fasteners once the hood is in place.

25. Attached the hood to the exhaust and vent ducting, us an awl to align the holes in the hood with the holes in the

ducts.

26. Install the hood filters and drip cup.

27. Install aluminum air switch tube to hood collar and the rubber air switch hose.

28. Install the oven door.

29. At this time the utilities need to be connected.

a. Connect the electrical power per the appliance data plate.

b. Connect the gas supply.

c. Connect the water supply.

d. Connect the drain.

e. Connect the ducting and ventilation.

30. Remove the caster box and level the oven.

31. Anchor the oven floor.

32. Install all floor trim screws.

33. Install the rack carrier by sliding it onto the rack shaft. Secure it in place with the snap ring. There are also four

allen set screws that will hold the carrier in its final position after adjustments are made.

34. Install the door sweeper, the door sweeper is installed up-side-down to prevent damage, remove the screws securing

the sweeper and flip the backer plate and the front plate over, then re-install.

35. Start-up the oven following the oven start-up form.

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