Star Manufacturing UM3255, UM3200 Installation Manual

®

CONVEYOR

OVEN

MODEL

UM3240
UM3255

Installation and

Operation

Instructions

2M-Z9045 Rev. D 6/26/2007

UM3240

UM3255

1

SAFETY SYMBOL

Using any part other than genuine Star factory supplied parts relieves the
manufacturer of all liability.

Star reserves the right to change specifi cations and product design without
notice. Such revisions do not entitle the buyer to corresponding changes,
improvements, additions or replacements for previously purchased
equipment.

Due to periodic changes in designs, methods, procedures, policies and
regulations, the specifi cations contained in this sheet are subject to change
without notice. While Star Manufacturing exercises good faith efforts to provide
information that is accurate, we are not responsible for errors or omissions
in information provided or conclusions reached as a result of using the
specifi cations. By using the information provided, the user assumes all risks in
connection with such use.

These symbols are intended to alert the user to the presence of
important operating and maintenance instructions in the manual
accompanying the appliance.

RETAIN THIS MANUAL FOR FUTURE REFERENCE

NOTICE

MAINTENANCE AND REPAIRS

Contact your local authorized service agent for service or required maintenance. Please record the model
number, serial number, voltage and purchase date in the area below and have it ready when you call to

ensure faster service.

Model No.

Serial No.

Voltage

Purchase Date

Authorized Service Agent

Reference the listing provided with the unit

or

for an updated listing go to:

Website: www.star-mfg.com
E-mail [e-mail]
Telephone: [phone] Local [phone]

The Star Service Help Desk

Business 8:00 am to 4:30 p.m. Central Standard Time
Hours:

Telephone: [phone] Local [phone]

Fax: [phone] Local [phone]

E-mail [e-mail]

[e-mail]
[e-mail]

Website: www.star-mfg.com

Mailing Address: Star Manufacturing International Inc.

10 Sunnen Drive
St. Louis, MO 63143
U.S.A

2

2

3

CAUTION

CAUTION

IMPORTANT

POST, IN A PROMINENT LOCATION, THE EMERGENCY TELEPONE NUMBER OF YOU
LOCAL GAS SUPPLIER AND INSTRUCTIONS TO BE FOLLOWED IN THE EVENT YOU
SMELL GAS.

Instructions to be followed in the event you smell gas shall be obtained by consulting the local
gas supplier. If the smell of gas is detected, immediately call the emergency phone number of

your local gas company. There personnel and provisions available to correct the problem.

FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER
FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER
APPLIANCE.

The installation of the Appliance must conform to the NATIONAL FUEL GAS CODE
"ANSI Z223.1 - LATEST EDITION" AND ALL LOCAL GAS COMPANY RULES AND
REGULATIONS.

IN CANADA INSTALLATION SHALL BE IN ACCORDANCE WITH THE CURRENT CAN/
CGA-B149.1 NATURAL GAS INSTALLATION CODE OR CAN/CGA-B149.2 PROPANE
INSTALLATION CODE AND LOCAL CODES WHERE APPLICABLE.

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE, OR
MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY, OR DEATH. READ
ALL INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS
EQUIPMENT.

IMPORTANT

An electrical wiring diagram for the oven is located on the inside cover of the
Control Box Top Lid.

NOTICE

THIS APPLIANCE SHALL BE INSTALLED IN CONFORMITY WITH CURRENT
REGULATIONS & USED ONLY IN A WELL VENTILATED LOCATION. CONSULT THE

INSTRUCTIONS BEFORE INSTALLING AND USING THE APPLIANCE.

AT, CH, CZ, DK, ES, FI,
GB, GR, HU, IE, IT, NO,

PT, SE

GAS I2H I2L I2E I2E+

P

(mBAR)

G20 @ 20 G25 @ 25 G20 @ 20 G20 @ 20/25

Gas/Country Designations

NL LU, DE BE, FR

1

®

UM3240 - UM3255 CONVEYOR OVEN

TABLE OF CONTENTS

page

Important Warnings 1
Specifi cations 3
Oven Components 4
General Information 5
Purchaser’s Responsibilities 5
Important Safety Information 6

INSTALLATION INFORMATION 7
Location 7
Gas Supply Rating & Sizing 7
Access Considerations 7
Electrical Connection 8
IEC/CEE Equipotential Ground 8
Pressure Regulation 9
Pressure Testing 9
Ventilation 10
Smoke Candle Test 10
Base Pad Assembly 11
Oven to Base Assembly 11
Stacking Instructions 12
Conveyor Installation 13
Conveyor Belt Direction 14
Restraint Requirement 15

OPERATING INSTRUCTIONS
Safety Operating Instructions 16
Operation 16
Turn Unit On 17
Adjusting Time & Temp 17
Shut Down Procedures 17

DISPLAY INFORMATION
Store Level 18
Manger Level 18
Additional Functions 18
Error Codes 18
Bake Time versus Temp 19
Conveyor Speed 19
Time of Delivery 19

MAINTENANCE INSTRUCTIONS

Daily, Monthly, 3 Months, Annually 20-21
Nozzle Finger Assembly / Dissembly 21
Conveyor Belt Tension 22
Conveyor Belt Link Removal 22
Wiring Diagram 23

EXPLODED VIEW & PARTS LIST

Front Panel Assembly 24-25
Rear Panel Assembly 26-27
Conveyor Assembly 28-29
Control Box Assembly 30-31
Control Box Door Assembly 32-33
Manifold & Blower/Burner Assembly 34-35
Warranty 36

2

SPECIFICATIONS

UM3240-NAT, UM3240-LP

Gas Rating/Connection: 120,000 BTU/hr (504 kcal/min)

3/4" NPT female pipe connection (BSP adapter supplied on CE models)
Gas Supply Pressure: Natural - 5-6" water column (15-30 mBar) @ rated fl ow
Propane - 11-12" water column (27.5-30 mBar) @ rated fl ow

Electrical Supply: Separate 15 Amp 208-240VAC, single phase, 50/60 Hz service per Oven
Approximate Weight (Single Oven without base): Shipping - 868 Lbs (393.7 kg)

(Single/Double Base): Shipping - 177.3 Lbs (80.4 kg)
(Triple Base): Shipping - 188.3 Lbs (85.4 kg)
(Fingers): Shipping - 91.5 Lbs (41.5 kg)
(Single Oven with base): Installed - 717 Lbs (325.2 kg)
(Double Oven with base): Installed - 1292 Lbs (586 kg)
(Triple Oven with base): Installed - 1878 Lbs (851.8 kg)

Dimensions: Width: 80.2" (203.7 cm) - w/control panel door closed

96.2" (244.3 cm) - w/control panel door open
Depth: 60.5" (153.7 cm) - Front Door(s) Closed

102.9" (261.4 cm) - Front Door(s) Open
Height: 43.1" (109.5 cm) - Single Oven with Stand

61.1" (155.2 cm) - Double Oven with Stand

63.5" (161.4 cm) - Triple Oven with Dolly

Recommended Minimum Clearances:

Rear of Oven to Wall 0" (0 cm)
Conveyor Extensions to Wall 6" (0 cm)
Allowing 16.25" on the control panel door to open will allow for easier service

UM3255-NAT, UM3255-LP

Gas Rating/Connection: 150,000 BTU/hr (630 kcal/min)

3/4" NPT male pipe connection (BSP adapter supplied on CE models)
Gas Supply Pressure: Natural - 5-6" water column (15-30 mBar) @ rated fl ow
Propane - 11-12" water column (27.5-30 mBar) @ rated fl ow

Electrical Supply: Separate 15 Amp 208-240VAC, single phase, 50/60 Hz service per Oven
Approximate Weight (Single Oven without base): Shipping - 922 Lbs (418.2 kg)

(Single/Double Base): Shipping - 205.3 Lbs (93.1 kg)
(Triple Base): Shipping - 216.3 Lbs (98.1 kg)
(Fingers): Shipping - 122 Lbs 55.3 kg)
(Single Oven with base): Installed - 827 Lbs (375.1 kg)
(Double Oven with base): Installed - 1484 Lbs (673.1 kg)
(Triple Oven with base): Installed - 2152 Lbs (976.1 kg)

Dimensions: Width: 94.6" (240.3 cm) - w/control panel door closed

110.6" (280.9 cm) - w/control panel door open
Depth: 60.5" (153.7 cm) - Front Door(s) Closed

102.9" (261.4 cm) - Front Door(s) Open
Height: 43.1" (109.5 cm) - Single Oven with Stand

61.1" (155.2 cm) - Double Oven with Stand

63.5" (161.4 cm) - Triple Oven with Dolly

Recommended Minimum Clearances:

Rear of Oven to Wall 0" (0 cm)
Conveyor Extensions to Wall 6" (0 cm)
Allowing 16.25" on the control panel door to open will allow for easier service

3

OVEN COMPONENTS

I

A

G

VIEW A

C

B

H

F

J

I

E

H

IL1173

OVEN COMPONETS DESCRIPTION

A: Conveyor Belt: Moves the product through the oven
B: Conveyor Assembly: Supports the Conveyor Belt, the

ends fold up for easy removal.

C: Control Panel: Bright Red Display for easy notifi cation

of ovens current operation, and buttons for making quick
modifi cations.

D: Air Intake: Located on the end of the control box to pre-

vent the electronic controls from overheating as well as
to allow for a more direct air fl ow into the blowers. DO
NOT BLOCK these air intakes and wipe them clean on a
regular basis.

E: Machinery Compartment Access Door: Allows access

to the oven’s interior Finger components.

F: Access Window: This allows easy access to the cooking chamber, for product to be placed in to give

a shorter or additional cooking time to the product.

G: Heat Shutter: Can be adjusted to various settings, depending on product being placed in the oven, to

prevent heat loss

H: Crumb Tray: Catches crumbs and other material that drops through the conveyor belt. Located at

each end of the conveyor assembly.

I: Conveyor End & Side Stops: Prevents product from falling off of the moving conveyor.
J: Fingers: Projects streams of hot air onto the product.
K: Circuit Breaker 10Amp: Protects components from over amperage.
L: Hi-Limit Reset: Monitors inside cooking temperature and will only trip when unitended temperature is

reached.

M: Nameplate: Has specifi c information regaring this units electrical & gas requirements as well as the

units serial number which is needed for any service that will be required. This number should be written
in the inside cover of this manual and kept for future needs

N: Electrical Input: Electrical Supply connection must meet all national and local electrical code

requiremtns.

O: Gas Connection: The installation must confi rm with local codes or in the absence of local codes, with
the National Fuel Gas Code, ANSI Z2223.1 latest edition.

K

L

M

N

VIEW A

O

D

4

GENERAL INFORMATION

This equipment is designed and sold for commercial use only by personnel trained and experienced
in its operation and is not sold for consumer use in and around the home nor for use directly by
the general public in food service locations.

Before using your new equipment, read and understand all the instructions & labels

associated with the unit prior to putting it into operation. Make sure all people associated
with its use understand the units operation & safety before they use the unit.

First and foremost, each crate should be examined before signing the Bill of Lading to report any
visible damage by the freight carrier in transit and to account for the proper number of crates.
If there is apparent damage, arrangements should be made to fi le a claim against the carrier
within 15 days. Interstate Commerce Regulations require that the claim must be initiated by the
consignee. Proper and secure storage facilities should be arranged for the oven(s) if necessary
to protect it from outdoor or damp conditions at all times before installation.

-IMPORTANT-

When you have all the crates unloaded, open the crates and remove all plastic covers. Inspect
at once for concealed damage. If anything appears to be damaged, contact the appropriate
persons immediately to fi le a damage claim. After completing this inspection, fi nish unpacking
the oven. Be sure to remove all paper protection and packing material from the unit prior

to lighting.

NOTICE

This appliance must be installed with a stand and casters designed by Star Manufacturing as part
of a complete installation. The installation must also include a connector complying with either
ANSI Z21.69 or CAN/CGA-6.16 and a quick-disconnect device complying with either ANSI Z21.41
or CAN1-6.9. It must also be installed with restraining means to guard against transmission of
strain to the connector as specifi ed in the appliance manufacturer's instructions.

For your protection, we recommend a qualifi ed installing agency install this appliance. They
should be familiar with gas installations and your local gas requirements. In any case, your gas
company should be called to approve the fi nal installation.

This appliance, its pressure regulator, 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 PSIG. This appliance and its pressure regulator must be isolated from the gas
supply piping system by closing its individual manual shutoff valve during any pressure testing
of the gas supply piping system at test pressures equal to or less than 1/2 PSIG.

PURCHASER'S RESPONSIBILITY

It is the responsibility of the purchaser:

1. To see that the gas and electric services for the oven are installed on site in accordance
with the manufacturer's specifi cations and municipal codes.

2. To see that all gas and electric services are connected properly by a qualifi ed installer of your
choice. All such connections must be in accordance with applicable code requirements.

3. To arrange for inspection and operation check-out by an authorized service technician.
The warranty becomes effective upon verifi cation of proper installation.

5

CAUTION

CAUTION

CAUTION

IMPORTANT SAFETY INFORMATION

Do not attempt to operate the oven until connection of utility service has been fully inspected
by an authorized service technician or a Star Service Representative. This service is required
by Star in order to assist the purchaser in proper start-up of the oven on site. Please note
the specifi c details on the Warranty and make certain that service connections are made to
proper utility services.

The warranty shall not apply if the oven is started up and operated prior to the utilities and
oven being inspected and check-out made by an authorized service technician or a Star
Service Representative.

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE, OR
MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY, OR DEATH. READ
ALL INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS
EQUIPMENT.

Post in a prominent location the emergency telephone number of your local
gas supplier and instructions to be followed in the event you smell gas. If the
smell of gas is detected, immediately call the emergency phone number of
your local gas company. They will have personnel and provisions available to
correct the problem.

It is required that the oven be placed under a ventilation hood to provide for
adequate air supply and ventilation.

CAUTION

CAUTION

CAUTION

WARNING

Minimum clearances must be maintained from all walls and combustible
materials. Minimum clearances for this unit should be 0 inches from the rear
and 6 inches from both sides. Keep the oven free and clear of all combustible
material, for use only on Non-Combustable fl oors.

Adequate clearance for air openings to the combustion control chamber on the
right side of the oven is required. Do not obstruct the ventilation holes in the
control panels as these provide the combustion air for the burner and cooling
air for the controls.

The oven is to be operated only on the type of gas and electricity shown on the
specifi cation plate. The burner will not operate and gas will not fl ow through
the burner without electric power.

If the supply cord is damaged, it must be replaced by the manufacture,
its service agent or similarly qualifi ed persons in order to avoid a hazard.
Star replacement parts are listed in the parts list section of this manual.

6

INSTALLATION INFORMATION

THE INSTALLATION INSTRUCTIONS CONTAINED HEREIN ARE FOR THE USE OF
QUALIFIED INSTALLATION AND SERVICE PERSONNEL ONLY. INSTALLATION OR
SERVICE BY OTHER THAN QUALIFIED PERSONNEL MAY RESULT IN DAMAGE TO THE
OVEN AND/OR INJURY TO THE OPERATOR.

Qualifi ed installation personnel are individuals, a fi rm, a corporation, or a company which either
in person or through a representative are engaged in and responsible for:

1. The installation or replacement of gas piping and the connection, installation, repair, or
servicing of equipment.

2. The installation of electrical wiring from the electric meter, main control box, or service outlet
to the electric appliance.

Qualifi ed installation personnel must be experienced in such work, familiar with all precautions
required, and have complied with all requirements of state or local authorities having
jurisdiction.

UTILITY INSTALLATION

LOCATION

The well-planned and proper placement of your oven will result in long-term operator convenience
and satisfactory performance.

NOTE: On gas conveyor ovens, routine servicing can usually be accomplished within the limited
movement provided by the gas hose restraint. If the oven needs to be moved further from the
wall, the gas must fi rst be turned off and disconnected from the oven before removing the restraint.

Reconnect the restraint after the oven has been returned to its regular position.

It is essential that an adequate air supply to the oven be maintained to provide a suffi cient fl ow
of combustion and ventilation air. Follow these guidelines:

1. Place the oven in an area that is free of drafts.

2. Keep the oven area free and clear of all combustibles such as paper, cardboard, fl ammable
liquids, and solvents. Oven should only be used on Non-Combustible Floors.

3. Do not place the oven on a curb base or seal to a wall. This will restrict the fl ow of air and
prevent proper ventilation to the blower motors. This condition must be corrected to prevent
permanent damage to the oven.

4. On all models, tripping of the blower motor's thermal overload device indicates an excessive
ambient temperature at the back of the oven. This condition must be corrected to avoid
permanent damage to the oven.

GAS SUPPLY RATING AND SIZING

Calculations for pipe sizing must take into account the maximum usage rate of all other appliances
in the kitchen or one or more of the appliances will suffer from inadequate or dangerous
performance. The 3/4" NPT connection for the oven is generously sized for use in the control
box of the oven. However, unless the oven installation is within 10 feet of the main building gas
supply, the supply must be larger. For each oven, a 3/4" NPT fl exible quick connect hose and
full port gas shut-off valve is recommended as a MINIMUM. The main pipe supplying each oven
branch may need to be larger depending on the number of appliances serviced, the number
of elbows in the piping, and the pressure. This should be sized and installed by a professional
familiar with any local codes that may also affect the installation.

ACCESS CONSIDERATIONS

Locating the gas valve(s), quick connect hose(s) and electrical outlet(s) at the control box end
of the oven will allow easier access for any service visits. This improved access should make
any necessary service quicker resulting in less kitchen disruption. It will also allow easier
disconnection of electricity, gas, and restraints for cleaning around and behind the oven.

7

WARNING

CAUTION

WARNING

ELECTRICAL CONNECTION

UTILITY INSTALLATION

Before making any electrical connections to this unit, check that the power supply is adequate
for the voltage, amperage, and phase requirements stated on the rating plate. A wiring diagram
is included herewith.

ENSURE THAT BOTH THE CIRCUIT BREAKER AND THE POWER (ON/OFF) SWITCH
IS IN THE OFF POSITION BEFORE PROCEEDING.

BE CERTIAN THAT ALL PACKING MATERIAL HAS BEEN REMOVED FROM INSIDE
THE OVEN'S CHAMBER.

When installed, this appliance must be electrically grounded and its installation must comply with
the National Electric Code, ANSI-NFPA 70, latest version, manufacturer's installation instructions,
and applicable local municipal building codes. In Canada, all electrical connections are to be in
accordance with CSA C22.1 - Canadian Electrical Code Part 1 and/or local codes.

This device is equipped with a 3-prong (grounded) plug for your protection against shock
hazard and should be plugged directly into a properly grounded three prong receptacle.
DO NOT cut or remove the grounded prong from this plug.

EQUIPOTENTIAL GROUNDING - CE ONLY

On CE units, connect an equipotental ground wire to the ground lug shown in the fi gure below.
The equipotential ground connection must meet current IEC/CEE and local code requirements.
The ground lug is found on the rear side of the control box, below the equipotential ground
symbol.

On certain CE/UK models install the IEC plug using the cord holder provided.

Symbol

Equipotential
Ground Lug

Cord Holder

IEC Plug

IL1242

IEC/CEE Equipotential Ground Connection

8

CAUTION

WARNING

UTILITY INSTALLATION

PRESSURE TESTING GAS SUPPLY LINE

During pressure testing note the following:

1. The oven and its individual manual shut-off 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 psig (3.45 kPa).
Turn OFF main gas shut-off valve or main gas supply line.

2. The oven must be isolated from the gas supply piping system by closing its individual manual shut­off valve during any pressure testing of the gas supply piping system at test pressures equal to or
less than 1/2 psig (3.45 kPa).

3. If incoming pressure is over 14" water column, a separate regulator for the oven must be installed
before the gas supply to the oven.

To prevent damage to the control valve regulator during the initial turn-on of
gas, it is very important to open the manual shut-off valve very slowly. After the
initial gas turn-on, the manual shut-off valve must remain open except during
pressure testing as outlined in the above steps or when necessary during service
maintenance.

NOTE: The supplied regulator is evaluated for a maximum gas supply pressure of
14" water column (34.5 mBar). The recommended maximum gas supply pressure
is 12" water column (29.9 mBar).

Installation must conform with local codes or, in the absence of local codes, with the National
Fuel Gas Code, NFPA54/ANSI Z223.1 - Latest Edition, the Natural Gas Installation Code

CAN/CGA-B149.1 or the Propane Installation Code CAN/CGA-B149.2 as applicable.

PRESSURE READING

TEST NIPPLE

SET-SCREW

GAS PRESSURE

ADJUSTMENT SCREW

IS UNDER CAP

Oven Manifold Regulator, w/Set Screw

IL1191

OVEN MANIFOLD PRESSURE REGULATION

Each oven has been adjusted at the factory to operate with
the gas specifi ed on the nameplate.

Each oven is supplied with a regulator to maintain the proper
gas pressure. The regulator is essential to the proper
operation of the oven and should not be removed or replaced
by another model unless approved by Star Manufacturing.
A pressure reading can be taken at the test nipple provided.
You must back the set-screw one turn for this test, be certain
to re-tighten when you are done. Failure to reset the set­screw to its original position will create a gas leak once the
unit is back in operation. The reading should be taken while
the oven is heating up & at high fi re. The regulator is located
on the bottom of the gas combination valve, just inside the
control box. Adjust gas manifold regulator gas pressure by
removing the cap and adjusting the regulator adjustment
screw to match the pressure listed on the name plate (3.5"
Nat, 4.8" Propane). Clockwise to increase, counterclockwise
to decrease.

9

VENTILATION

INSTALLATION VENTILATION

A VENT IS REQUIRED: Local codes prevail. These are the "authority having
jurisdiction" as stated by the National Fire Protection Association, Inc. in NFPA
96-Latest Edition. For further ventilation information see below.

A ventilation hood is required to remove heat and cooking odors. For gas ovens, a ventilation
hood is also required to remove the products of combustion. The hood and HVAC installation
must meet local codes to gain approval by the authority having jurisdiction. Requirements may
vary depending on the location by city, county, and state. Obtain information from the authority
having jurisdiction to determine the requirements for your installation. Obtain information and
review copies of codes or documents that will be used to inspect and approve your installation.
Your ventilation hood supplier and HVAC contractor should be contacted to provide guidance. A
properly engineered and installed ventilation hood and HVAC system will expedite approval and
reduce oven maintenance costs. Proper ventilation is the responsibility of the oven's owner.

The ventilation hood must operate in harmony with the building HVAC system. (The effi ciency
of various hood designs makes it necessary to specify such a wide range of ventilator CFM.)
Make-up air must be supplied by either a hood design or the HVAC system to avoid a negative
pressure condition. This will vary with hoods from various manufacturers. Air supplied directly
from outside the building to the kitchen or oven area, non-tempered, could be used as supply
air but the design would have to accommodate potential operational changes.

CAUTION
Prevent airfl ow through the cooking

VENTILATION

CAPTURE AREA

VENTILATION

CAPTURE AREA

RIGHT SIDE FRONT SIDE

tunnel. Air must NOT be directed onto
the oven's front or rear or to the sides
of the cooking area.

The following drawing shows a typical
installation and is intended to be a guideline.
This is not a rigid specification. Hood
dimensions and positioning over the oven
will vary with hood manufacturer & local
guidelines.

CAUTION

Damage sustained as a direct result of
improper ventilation will not be covered by

IL1177

the warranty.

Failure to properly vent the oven can be hazardous to the health of the operator
and may result in operational problems, unsatisfactory baking, and possible
damage to the equipment.

SMOKE CANDLE TEST

In order to verify the proper function of your ventilation system, a smoke candle test should
be done. If testing a multiple oven system, this test should be done on the bottom oven. The
conveyor coupling should be disconnected so conveyor does not move and the oven temperature

must be set and operating at a minimum of 480°F (249°C).

Test Procedure:

1. Wear heat-resistant gloves to prevent burns.

2. Put the smoke candle in an cake pan.

3. Insert candle through conveyor tunnel or oven

door. (Use Star Smoke Candle 2W-Z5668.)

4. Light the fuse of the smoke candle and
immediately center the pan in the oven cavity on
the conveyor belt (keeping the oven door and
window closed).

10

5. Observe the smoke pattern coming out of
all oven openings and the collection of this
smoke by the ventilation system.

6. All smoke from the oven must be captured
by the ventilation system.