XLT Ovens XLT TS3-S Standard Series User manual

0
Installation & Operation Manual
XLT TS3-S Standard Series Conveyor Oven
This appliance is for professional use by qualified personal. This appliance must be
installed by qualified persons in accordance with the regulations in force. This
appliance must be installed with sufficient ventilation to prevent the occurrence of
unacceptable concentrations of substances harmful to health in the room in which it
is installed. This appliance needs an unobstructed flow of fresh air for satisfactory
combustion and must be installed in a suitably ventilated room in accordance with
current regulations. This appliance should be serviced by qualified personnel at
least every 12 months or sooner if heavy use is expected.
XD-9010-TS3-S
Rev A - 04/2009
© 2009 Wolfe Electric, Inc.
Wolfe Electric, Inc.
P. O. Box 9090
Wichita, KS 67277
Phone: [phone]
Fax: [phone]
www.xltovens.com

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WARNING & SAFETY INFORMATION
•Post in a prominent location instructions to be followed in the event you smell gas. This information
can be obtained by consulting your local gas supplier.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
liquids or vapors 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, using, or servicing this equipment.
•In the event a gas odor is detected, shut off the gas at the main shutoff valve immediately. Contact
your local Gas Company or supplier.
•Do not restrict the flow of combustion and/or ventilation air to the unit. Provide adequate clearance
for operating, cleaning, and maintaining the unit and adequate clearance for operating the gas shutoff
valve when the unit is in the installed position.
•Keep the area free and clear of combustible material.
•Ovens are certified for installation on combustible floors.
An electrical schematic is located inside the control box of the oven and on pages 31-33
of this manual. Disconnect input power to the unit before performing any maintenance.
•This unit requires a type II ventilation hood, which has make-up and exhaust air to ensure adequate air
supply. The installation should conform to local codes and the National Fire Protection Association
Code, ANSI/NFPA 70, and the National Electrical Code.
•This unit may be operated with either natural gas or propane fuel as designated on the nameplate label
located on the back of the unit.
•This unit must be operated by the same voltage, phase, and frequency of electrical power as
designated on the nameplate label located on the back of the unit.
•Minimum clearances must be maintained from combustible and noncombustible construction
materials. See Physical Location & Spacing Requirements on page 19.
•Follow all local codes when installing this unit. In the absence of local codes, the installation must
conform to the National Fuel Gas Code, ANSI Z223.1, latest version, Natural Gas Installation Code,
CAN/CGA-B149.1, or the Propane Installation Code, CAN/CGA-B149.2, as applicable.
•Follow all local codes to electrically ground the unit. The installation must conform to the National
Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.2, as applicable.
•PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE.

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Y
our new XLT oven is the result of our dedication to help you produce the finest quality baked
goods. XLT ovens are designed and manufactured by Wolfe Electric, Inc. which was founded in
Wichita, Kansas shortly after WW II. In addition to ovens, Wolfe Electric also makes fan blades &
blower wheels, metal coil handling equipment, and other diversified products.
Wolfe Electric, Inc. has made a substantial and growing investment in capital equipment and
facilities, including state of the art CAD/CAM designing and fabricating software and machine tools.
The company has also developed ways to build quality into its products at each stage of the
manufacturing process, both through extensive use of automation and, most importantly, through an
awareness that people are the central element in quality control.
Wolfe Electric, Inc. is dedicated to serving your needs. Your complete satisfaction with your oven is
our goal. We are available 24/7/365 to assist you with all of your maintenance and service
requirements. If a problem arises we ask that you simply call us at [phone]. We will
promptly initiate steps to solve your problem. We will ask for the following information:
Your name, address, and telephone number
Model number and serial number of the unit (found on the right hand side of the oven)
Details of the concern
Wolfe Electric, Inc. wants you to be totally satisfied with every aspect of owning and using your XLT
oven. Your feedback, both positive and negative, is very important to us as it helps us understand
how to improve our products and our company. Our goal is to provide you, our customer, with an
oven that we can be proud to build and you can be proud to own.

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TABLE OF CONTENTS
1. DESCRIPTION.....................................................................................................................4
2. OPERATOR CONTROLS....................................................................................................6
3. OPERATION ......................................................................................................................10
3.1. CONDENSED START-UP INSTRUCTIONS................................................................10
3.1.1. FOR THE 1832-TS3-S, 2440-TS3-S, 3240-TS3-S, 3255-TS3-S
AND 3855-TS3-S MODELS………………………………………………………………...10
3.1.2. FOR THE 3270-TS3-S AND 3870-TS3-S MODELS……………………………..10
3.2. DETAILED START-UP INSTRUCTIONS ....................................................................11
3.3. SHUT DOWN INSTRUCTIONS....................................................................................12
4. SPECIFICATIONS .............................................................................................................13
5. INSTALLATION ................................................................................................................18
5.1. INSTALLATION OVERVIEW.......................................................................................18
5.2. PURCHASER’S RESPONSIBILITY..............................................................................18
5.3. ASSEMBLY INSTRUCTIONS.......................................................................................18
5.4. PHYSICAL LOCATION & SPACING REQUIREMENTS...........................................19
5.5. ELECTRICAL SUPPLY..................................................................................................19
5.6. GAS SUPPLY..................................................................................................................19
5.7. CASTERS........................................................................................................................20
5.8. RESTRAINT....................................................................................................................20
5.9. VENTILATION...............................................................................................................20
5.9.1. VENTILATION REQUIREMENTS………………………………………………..20
5.9.2. VENTILATION GUIDELINES…………………………………………………….21
5.9.3. VENTILATION PERFORMANCE TEST…………………………………………21
5.9.4. HOOD INTERCONNECTION…………………………………………………….22
5.9.5. FIRE SUPPRESSION………………………………………………………………22
5.9.6. MAINTENANCE…………………………………………………………………...24
5.10. CLEANING .....................................................................................................................24
6. TOUBLESHOOTING.........................................................................................................26
6.1. COOKING PROBLEMS .................................................................................................26
6.2. OVEN PROBLEMS.........................................................................................................27
7. ROUGH-IN .........................................................................................................................28
8. ELECTRICAL DIAGRAMS: .............................................................................................31
8.1. 1832-TS3-S, 2440-TS3-S, 3240-TS3-S, 3255-TS3-S & 3855-TS3-S.............................31
8.2. 3270-TS3-S & 3870- TS3-S RIGHT HAND SIDE.........................................................32
8.3. 3270-TS3-S & 3870-TS3-S LEFT HAND SIDE.............................................................33
9. WARRANTY......................................................................................................................34

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1. DESCRIPTION
The XLT TS3 series of ovens consist of seven models; the 1832-TS3-S, the 2440-TS3-S,
3240-TS3-S, the 3255-TS3-S, the 3855-TS3-S, the 3270-TS3-S, and the 3870-TS3-S. The first two
digits of the model number represent the conveyor width, and the second two digits indicate the bake
chamber length. Ovens with a longer bake chamber length have a higher cooking capacity. The TS3
designation represents the fact that the ovens are triple-stackable. The ovens may be used in a single
oven stack, a double oven stack, or a triple oven stack. A single stack or double stack oven can be
upgraded by adding another oven deck or two up to the maximum of three. All ovens are gas-fired
and are available in Natural gas or LP (Propane) gas models. (Electric ovens are also available). The
3270-TS3-S and 3870-TS3-S models have two burners, one right hand and one left hand. They also
have two control boxes, again one right and one left. The other models have only a single right hand
burner with a single right hand control box. All models can have the optional split belt conveyor.
Figure 1: Examples of Single, Double, and Triple Stack Ovens
Food product is placed on the stainless steel wire conveyor belt on one side of the oven. The
conveyor then transports the food through the bake chamber at a user-controlled speed. This provides
repeatable and uniform food cooking. The conveyors can be easily configured to move either left-to-
right or right-to-left. A large center sandwich door allows the introduction or removal of food items
for cooking at shorter times. Temperatures up to 550°F inside the oven are achieved by means of a
user-adjustable digital control.
An easily removable front panel allows the full cleaning of the oven interior. All exposed oven
surfaces both exterior and interior are constructed of stainless steel. The conveyor is a one piece
design and is removed from the right side of the oven. No tools are required for disassembly and
cleaning of the conveyor or oven interior. The oven itself is mounted on lockable swivel casters for
easy moving and maintenance.
Examples of single, double and triple stack ovens are shown in Figure 1. An oven drawing with
nomenclature is shown in Figure 2.

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Figure 2: TS3-S Front View
Figure 3: Right Hand Control Box
(TS3-S models) Figure 4: Left Hand Control Box
(3270-TS3-S and 3870-TS3-S)

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2. OPERATOR CONTROLS
The operator controls for the TS3-S ovens are located on
the Control Box which is on the right side of the oven. The
oven switch with the operating instructions is shown in
Figure 5. Also nearby are the temperature control, the
conveyor control, and the fuse bank, (see Figure 6).
The 3270-TS3-S and 3870-TS3-S ovens have an additional
Control Box on the left side, (see Figure 7).
Figure 5: Oven Switch (TS3-S Models)

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Figure 6: Right Hand Side Control Panel (All TS3-S Models)
All XLT TS3-S ovens have a right hand side Control Panel. The fuses are located on the Control Panels
and are labeled for their function and replacement part number. It is very important to use only the fuses
listed. Using larger or smaller fuses than what is labeled on the oven can cause serious damage to the
operator and/or the oven and will also void any and all warranties. See Figure 6.
A conveyor control is located at the top of the panel and a temperature control is located mid-panel. A
Flow Path Pressure Generating fan with washable filter is near the bottom of the panel. The filter is held
in place by a snap-on fan guard.

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Figure 7: Left Hand Side Control Panel (3270-TS3-S and 3870-TS3-S)
3270-TS3-S and 3870-TS3-S ovens also have a left hand side Control Panel. This panel houses the
fuses for the equipment inside the left hand control box. A second temperature control is also used
for controlling the burner on the left half of the oven. This allows for two different temperature zones
within these ovens for cooking flexibility, with a maximum delta of 50º F. Another Flow Path
Pressure Generating fan is near the bottom of the panel. See Figure 7.

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Figure 8: Optional Right Hand Control Panel (Split Belt Conveyor) TS3-S
A popular option on the XLT TS3-S oven is the split conveyor belt. This allows for 2 different
conveyor speeds through the oven. Figure 8 shows the right hand control panel when the split belt
option is present. The difference is that a second conveyor control is also present.

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3. OPERATION
The XLT oven is a convection oven. It cooks foods by forcing hot air to circulate around the food,
thereby increasing the heat transfer rate. Convection ovens generally cook foods faster than
conventional ovens. The XLT oven models also have a conveyor that carries food through the oven at
a uniform rate. This helps eliminate under or over cooking food.
3.1.CONDENSED START-UP INSTRUCTIONS
3.1.1. FOR THE 1832-TS3-S, 2440-TS3-S, 3240-TS3-S, 3255-TS3-S
AND 3855-TS3-S MODELS
1. Turn the OVEN switch ON (see Figure 5), fan will start automatically.
2. Adjust the temperature controller set-point to the desired temperature (see Figure 6).
3. Observe the indicated temperature for one minute. You should hear the burner ignite and the
temperature should rise after 30-45 seconds.
4. If the burner does not ignite, turn the OVEN switch OFF, wait FIVE (5) minutes, and repeat
steps 1 & 3.
5. Push the ENTER KEY button twice to start conveyor, if not already running, (see Figure 6).
6. Adjust the conveyor controller to desired belt time (see Figure 6).
7. Allow about 30 minutes for the oven to reach desired operating temperature.
This oven is not capable of being safely placed in operation in the event of a power failure. No
attempt should be made to operate this oven during power failure.
3.1.2. FOR THE 3270-TS3-S AND 3870-TS3-S MODELS
1. Turn the OVEN switch ON (see Figure 5), fan will start automatically.
2. Adjust both of the temperature controller set-points to the desired temperatures (see Figure 6
& Figure 7).
3. Observe the indicated temperature for one minute. You should hear the burners ignite and
both of the temperatures should rise after 30-45 seconds.
4. If one or both of the burners do not ignite, turn OVEN switch OFF, wait FIVE (5) minutes,
and repeat steps 3 & 4.
5. Push the ENTER KEY button twice to start conveyor, if not already running, (see Figure 6).
6. Adjust the conveyor controller to desired belt time (see Figure 6).
7. Allow about 30 minutes for the oven to reach desired operating temperature.
This oven is not capable of being safely placed in operation in the event of a power failure. No
attempt should be made to operate this oven during power failure

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3.2.DETAILED START-UP INSTRUCTIONS
1. Turn the Oven switch on, (see Figure 5). The fan starts when the Oven switch is turned on.
2. Adjust the temperature controller set-point to desired temperature (see Figure 6).
Figure 9: Temperature Controller
See Figure 9 above to adjust the temperature controller. To change the oven Set Point
temperature, press and hold either the Up or Down key for 2 seconds and then use these 2 keys
to adjust to the desired temperature. After “Up or Down” key press inactivity, the display will
blink once indicating that the set point temperature has been set. The “Func” and “Man” keys
are used at the factory to program the variables in the controller. These variables can be
viewed but are locked in memory by an internal switch. It is recommended that the “Func”
and “Man” keys be left alone. If either of these keys has been pressed, simply press them
again until the display matches the above Figure 9. It may take several key-presses to cycle
through all the variables.
3. Allow about 30-45 seconds for the burner to fire.
4. If the burner does not ignite, turn the Oven switch off, wait five (5) minutes, and repeat steps
3 & 4.

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5. The conveyor is controlled by the Enter Key button. Push twice to turn off and repeat to turn
on, (see Figure 6).
6. Adjust the Conveyor Control to the desired belt time. The Conveyor Control will display the
belt time. The Up or Down key will adjust the time accordingly. See Figure 10 below.
Figure 10:Conveyor Control Display
These controls are factory preset at 4:00 minutes minimum and 14:00 minutes maximum. If a
belt time is desired that is outside these limits, contact Wolfe Electric, Inc. for proper service
procedures.
7. Allow 30 minutes for warm-up.
3.3.SHUT DOWN INSTRUCTIONS
To turn the oven off, just turn the Oven switch to off position, (See Figure 5). Do not unplug the
oven from electrical power. The oven is equipped with an automatic cool down feature that
allows the fan to run until the oven is cooled to a safe level (approximately 20-30 minutes).

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4. SPECIFICATIONS
Figure 11: Oven Size Specification Drawing

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GENERAL SPECIFICATIONS (ALL OVENS)
Oven ELECTRICAL REQUIREMENTS
Single Stack Volts Amps Phase Frequency
1832-TS3-S 6
2440-TS3-S 6
3240-TS3-S 6
3255-TS3-S 6
3855-TS3-S 6
3270-TS3-S 10
3870-TS3-S
120 VAC
10
Single 60 Hz
Double Stack Volts Amps Phase Frequency
1832-TS3-S 12
2440-TS3-S 12
3240-TS3-S 12
3255-TS3-S 12
3855-TS3-S 12
3270-TS3-S 20
3870-TS3-S
120 VAC
20
Single 60 Hz
Triple Stack Volts Amps Phase Frequency
1832-TS3-S 18
2440-TS3-S 18
3240-TS3-S 18
3255-TS3-S 18
3855-TS3-S 18
3270-TS3-S 30
3870-TS3-S
120 VAC
30
Single 60 Hz

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Contact Wolfe Electric, Inc., a factory representative, or a local service company to make all gas pressure
adjustments.
QUIET FIRE BURNER - GAS REQUIREMENTS (INLET)
Oven
Single Stack
Natural Gas
(6"- 8" WC)
Propane Gas
(11"- 14" WC)
1832-TS3-S 52,000 Btu 52,000 Btu
2440-TS3-S 65,000 Btu 65,000 Btu
3240-TS3-S 90,000 Btu 90,000 Btu
3255-TS3-S 150,000 Btu 150,000 Btu
3855-TS3-S 150,000 Btu 150,000 Btu
3270-TS3-S 160,000 Btu 160,000 Btu
3870-TS3-S 160,000 Btu 160,000 Btu
Oven
Double Stack
Natural Gas
(6"- 8" WC) Propane Gas (11"- 14" WC)
1832-TS3-S 104,000 Btu 104,000 Btu
2440-TS3-S 130,000 Btu 130,000 Btu
3240-TS3-S 180,000 Btu 180,000 Btu
3255-TS3-S 300,000 Btu 300,000 Btu
3855-TS3-S 300,000 Btu 300,000 Btu
3270-TS3-S 480,000 Btu 480,000 Btu
3870-TS3-S 480,000 Btu 480,000 Btu
Oven
Triple Stack
Natural Gas
(6"- 8" WC)
Propane Gas
(11"- 14" WC)
1832-TS3-S 156,000 Btu 156,000 Btu
2440-TS3-S 195,000 Btu 195,000 Btu
3240-TS3-S 270,000 Btu 270,000 Btu
3255-TS3-S 450,000 Btu 450,000 Btu
3855-TS3-S 450,000 Btu 450,000 Btu
3270-TS3-S 480,000 Btu 480,000 Btu
3870-TS3-S 480,000 Btu 480,000 Btu
GAS ORIFICE SIZES (per oven)
Oven
Natural Gas
Main
Orifice ID Manifold Pressure
1832-TS3-S 0.131"
2440-TS3-S 0.146"
3240-TS3-S 0.170"
3255-TS3-S 0.219"
3855-TS3-S 0.219"
3270-TS3-S 0.161"
3870-TS3-S 0.161"
3.5" WC
GAS ORIFICE SIZES (per oven)
Oven
Propane Gas
Main
Orifice ID Manifold Pressure
1832-TS3-S 0.082"
2440-TS3-S 0.090"
3240-TS3-S 0.103"
3255-TS3-S 0.129"
3255-TS3-S 0.129"
3270-TS3-S 0.099"
3870-TS3-S 0.099"
10.0" WC

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NOTE: For proper operation, measure the gas pressure, (see Figure 12), with all gas appliances, such as
furnace, hot water heater, oven(s), etc., a) off and b) with all gas appliances on.
Figure 12: Gas Pressure Check Quiet Fire Direct Ignition Burner
Contact Wolfe Electric, Inc., a factory representative, or a local service company to make all gas pressure
adjustments.

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5. INSTALLATION
5.1.INSTALLATION OVERVIEW
The following is an overview of the installation process.
1. Read this manual thoroughly.
2. Make sure all electric, gas, and ventilation utilities are adequately sized and in place before the
oven arrives.
3. Inspect the oven and crates for freight damage upon arrival. Assemble the oven on its base
near the area of intended usage. Remove all combustibles and obstructions from the area.
4. Have your plumber make all gas connections per local building codes. Provide adequate
clearance to access the gas shut off valve. Check for leaks!
5. Have your electrician make all electrical connections per local codes. Provide adequate
clearance to access the electrical plug and receptacle.
6. Install a restraint device and make sure that it guards against transmission of strain to the gas
line and electric cord.
7. Test the exhaust hood using a smoke candle to determine the amount of combustion products
removed.
5.2.PURCHASER’S RESPONSIBILITY
Note: All installations must conform to local building and mechanical codes.
It is the responsibility of the purchaser:
1. To see that the gas and electric utilities are installed on site in accordance with local
mechanical codes and with the specification in this manual.
2. To unload, uncrate, move, and assemble the oven(s) in their intended location.
3. To see that the gas and electric utilities are connected properly and using the proper hardware
by a qualified installer.
5.3.ASSEMBLY INSTRUCTIONS
These ovens come completely assembled from the factory except for Product Stops. The product
stops are shipped loose inside the oven. Remove them prior to start and install on the exit end of
the conveyor. Detailed assembly instructions are available, contact XLT Customer Service.

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5.4.PHYSICAL LOCATION & SPACING REQUIREMENTS
It is best to install ovens adjacent to a wall. It is possible to install an oven in the middle of a
room, but due to the routing of gas and electric lines, and ventilation hood performance, these
installations can be more costly. See Section 7. Rough-In for gas and electrical connections,
(page 28)
These ovens are suitable for installation on combustible floors. The minimum clearance from the
back is 6" and is determined by the back wall standoffs that are included with the oven. The
standoffs are intended for use with either combustible or noncombustible walls. The minimum
side clearances are 6". See Section 7. Rough-In for gas and electrical connections, (page 28).
5.5.ELECTRICAL SUPPLY
All XLT ovens require a 120VAC power supply. See General Specifications Chart for the
electrical power requirements.
WARNING
Electrical Grounding Instructions
This appliance is equipped with a three-prong (grounding) plug for your protection against
shock hazard and should be plugged into a properly grounded three-prong receptacle. Do
not cut or remove the grounding prong from this plug.
When installed, the appliance must be electrically grounded in accordance with 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, as applicable.
5.6.GAS SUPPLY
The gas supply shall have a gas meter and regulator large enough to handle all of the gas
appliances, such as the furnace, hot water heater, and oven(s), in operation at the same time. Add
up all of the Btu ratings to determine the total load.
The installation must conform with local building codes, or in the absence of local codes, with
the National Fuel Gas Code, ANSI Z223.1, latest version, Natural Gas Installation Code,
CAN/CGA-B149.1, or the Propane Installation Code, CAN/CGA-B149.2, as applicable,
including:
1. 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 ½-
psi (3.45-kPa).
2. The appliance 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 ½-psi (3.45-kPa).