Middleby CTX Mighty Chef TCO2114 Operation manual

Middleby Cooking Systems Group  1400 Toastmaster Drive  Elgin, IL 60120  [phone]  FAX [phone]
OWNER'S OPERATING
& INSTALLATION
MANUAL
Model TCO2114
© 1999 CTX, A Middleby Company
is a registered trademark of CTX, A Middleby Company. All rights reserved.
Conveyor Oven
TM
TCO2114
English (UL)
P/N 37750
Price $7.50
Rev. F  V1  7/99

WARNING: IN CASE OF FIRE
Disconnect the oven from its power source
IMMEDIATELY. Shutting down the electrical heating
elements allows the unit to cool, making it easier to
put out the fire.
WARNING: 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 AND
OPERATING INSTRUCTIONS THOROUGHLY
BEFORE INSTALLING OR SERVICING THIS
EQUIPMENT.
WARNING
DISCONNECT THE OVEN FROM ITS
ELECTRICAL POWER SUPPLY BEFORE
CLEANING OR SERVICING.
CAUTION
Using any parts other than genuine CTX factory
parts relieves the manufacturer of all liability.
IMPORTANT
Contact your authorized service agent to perform
maintenance and repairs. A service agency
directory is supplied with your oven.
IMPORTANT
CTX (manufacturer) reserves the right to change
specifications and product design without notice.
Such revisions do not entitle the buyer to
corresponding changes, improvements, additions or
replacements for previously purchased equipment.
RETAIN THIS MANUAL FOR FUTURE
REFERENCE
This manual provides detailed information for the
installation and operation of your conveyor oven. It
also contains information to assist the operator in
diagnosing problems in the event of a malfunction.
This manual is an important tool for the operator and
should be kept readily available.
© 1999 CTX, A Middleby Company
CTX  1400 Toastmaster Drive  Elgin, IL 60120  USA  [phone]  FAX [phone]
Middleby Corp 24-Hour Service Hotline [phone]
www.middleby.com
is a registered trademark of CTX, A Middleby Company. All rights reserved.
TABLE OF CONTENTS
SECTION 1
DESCRIPTION ............................................... 1
A. Features ........................................................... 1
B. Component Location and Function ................... 1
C. Electrical Specifications .................................... 1
SECTION 2
INSTALLATION ............................................. 2
A. Installation Options and Kit Availability ............. 2
B. Assembly .......................................................... 2
C. Electrical Connection ........................................ 2
SECTION 3
OPERATION .................................................. 3
A. Location and Function of Controls .................... 3
B. Daily Startup Procedure ................................... 3
C. Operation .......................................................... 4
D. Shutdown Procedure ........................................ 4
E. Programming Preset Menu Selections ............. 5
F. Cooking Time and Temperature Guidelines ..... 6
G. Draft Curtain Adjustment .................................. 6
H. Daily Cleaning .................................................. 7
I. Display Messages and Error Codes ................. 8
SECTION 4
ELECTRICAL WIRING DIAGRAMS .............. 9
Wiring Diagram and Schematic, Models
TCO21140063 (208V) and
TCO21140066 (240V), 1-Phase.............................. 9

4. Crumb trays (3)
5. Conveyor
end trays (2)
6. Conveyor
7. Adjustable draft
curtains (2)
3. MenuSelect®
keypad and display
2. Conveyor
reversing
switch
1. Power On/Off
(I/O) switch
8. Fan
1
SECTION 1 - DESCRIPTION
A. FEATURES
The Model TCO2114 Mighty Chef Conveyor Oven is
designed to quickly and easily cook, bake, and broil a
variety of food products with consistent quality and results.
The oven is ideal for preparing pizza, garlic toast, cookies,
sandwiches, and other food products.
Features of the Mighty Chef include:
 An electronic, programmable controller that allows up
to 5 preset menu selections
 A cool exterior for increased safety
 A 14 (356mm)-wide conveyor belt that can be easily
set to operate in either direction
 Adjustable draft curtains that reduce draft into the oven
and prevent heat loss into the environment
 Welded and reinforced stainless steel construction
 Fast countertop installation - no additional components
required
Figure 1 - Component location
B. COMPONENT LOCATION AND FUNCTION
Refer to Fig. 1 for the locations of these components.
1-3.Oven controls - see Section 3, Operation.
4. Crumb trays (3 total) - Collect crumbs that pass through
the conveyor. One center crumb tray is located
underneath the center of the conveyor. One end crumb
tray is located underneath EACH end of the conveyor.
5. Conveyor end trays - Provide additional loading/exit
space at the ends of the conveyor.
6. Conveyor - Transports the product through the oven,
and between the top and bottom heating elements.
7. Adjustable draft curtains (2 total) - Reduce draft into
the oven and prevent heat loss into the environment.
8. Fan - Cools the interior components of the oven.
C. ELECTRICAL SPECIFICATIONS TCO21140063 TCO21140066
Operating Voltage 208V 240V
Frequency 50/60 Hz 50/60 Hz
Phase 1 Ph 1 Ph
kW Rating 5.0kW 5.3kW
Current Draw 24A 22.1A
Plug Type NEMA 6-30P NEMA 6-30P

2
2. Installing the Conveyor End Trays
a. Press one of the conveyor end trays down over
the end plate of the conveyor frame, as shown in
Figure 3.
b. Fasten the end tray in place with one of the supplied
8-32x3/8 screws, as shown in Figure 3.
c. Repeat the above steps to install the second end
tray at the opposite end of the conveyor frame.
CAUTION
THE SUPPLIED LEGS AND THE END TRAYS MUST BE
FASTENED IN PLACE BEFORE OPERATING THE
OVEN.
Figure 2 - Leg Installation
Figure 3 - End Tray InstallationIMPORTANT
IT IS THE CUSTOMERS RESPONSIBILITY TO REPORT
ANY CONCEALED OR NON-CONCEALED DAMAGE TO
THE FREIGHT COMPANY.
A. INSTALLATION OPTIONS AND KIT
AVAILABILITY
If the installation will require two or three ovens to be
stacked, you must use the separately-available Stacking
Kit (P/N T2114STACK). One Kit is required for a two-stack,
while two kits are required for a three-stack. Stacking
more that three ovens is not permitted.
Wherever the Stacking Kits instructions are different from
those listed below, follow the instructions provided with the
Kit.
B. ASSEMBLY
1. Installing the Legs
a. Carefully tilt the oven onto its rear side. The front
(controller) side should be facing directly upwards.
b. Thread the four legs into the four holes provided
on the bottom of the oven. Tighten them until they
are secure. See Figure 2.
SECTION 2 - INSTALLATION
C. ELECTRICAL CONNECTION
IMPORTANT
The electrical connection to the oven requires a circuit
breaker/fused disconnect. Electrical specifications are
listed on the ovens serial plate and on the Electrical Speci-
fications table (Page 1).
CONSULT ALL APPLICABLE NATIONAL AND LOCAL
CODES FOR FURTHER ELECTRICAL CONNECTION
REQUIREMENTS.
1. Before proceeding with the electrical connection, check
the following:
a. Check that the electrical supply matches the ovens
requirements. Refer to the ovens serial plate and
to the Electrical Specifications table (Page 1).
b. Check that the appropriate receptacle is available
for the power cord plug.
WARNING
ENSURE THAT BOTH THE CIRCUIT BREAKER/
FUSED DISCONNECT AND THE POWER ON/
OFF (I/O) SWITCH ARE IN THE OFF (O) POSI-
TION BEFORE PROCEEDING.
WARNING
ENSURE THAT ANY PACKING MATERIAL
RESIDUE HAS BEEN REMOVED FROM INSIDE
THE COOKING CHAMBER.
2. Insert the power cord plug into its receptacle.
Position tray
1
Repeat for
second tray
3
Fasten in place
with screw
2

3
A. LOCATION AND FUNCTION OF
CONTROLS
This section provides a basic description of the Mighty Chef
ovens controls, their location, and the functions they
perform. The operator MUST be familiar with the controls.
See Figure 4.
1. MenuSelect® controller
Multi-function keypad which contains the following:
a. The display shows the current preset menu
selection, temperatures, cook time, or error/service
information, depending on the mode of operation.
b. The ready light illuminates when both heating
zones of the oven have reached their set
temperatures.
c. The Top Temp key displays/sets the top zone
temperature.
d. The Bottom Temp key displays/sets the bottom
zone temperature.
e. The Cook Time key displays/sets the cook time.
f. The Ref Temp key displays a reference
temperature for the top or bottom heating zone.
g. The Sngl Pizza key adjusts the temperature of the
top heating zone to properly cook a single pizza,
or the last of a group of pizzas.
h. The Prog key allows reprogramming of the five
Preset Menu Selections.
i. The Prog Override key allows a Preset Menu
Program to be temporarily changed.
Figure 4 - Controls
3. Con-
veyor
reversing
switch
2. Power
On/Off (I/O)
switch
j. The Up Arrow and Down Arrow keys are used to edit
cook time and temperature settings.
k. The Preset Menu keys (1-5) are used to select a
Preset Menu to change or operate.
2. Power On/Off (I/O) switch
Switches the oven ON (I) and OFF (O).
3. Conveyor reversing switch
Changes the direction of conveyor travel.
CAUTION
Do not operate the conveyor reversing switch while
the conveyor is in motion.
B. DAILY STARTUP PROCEDURE
1. Adjust the position of the draft curtains at the ends of
the cooking chamber (if necessary). This procedure
is described in detail in Section F, Draft Curtain
Adjustment, on Page 6.
IMPORTANT
When cooking at very high temperatures (either heating
zone is 400°F / 204°C or higher), the oven should be
pre-heated for at least 10 minutes WITH THE DRAFT
CURTAINS IN THE FULLY-LOWERED POSITION
and both heating zones set to 599°F / 315°C. After
pre-heating, the curtains may be repositioned as
required.
2. Restore power to the oven at the circuit breaker/fused
disconnect.
3. Switch the Power On/Off (I/O) Switch to the ON (I)
position.
e
d
c
f
i
k
b
a
j
h
g
SECTION 3 - OPERATION
1. MenuSelect® controller

C. OPERATION
1. TO PROGRAM A NEW
PRESET MENU SE-
LECTION:
Perform the procedure in Section E, Programming Preset Menu Selections, on Page 5. At least one
menu selection MUST be programmed before the oven can be operated.
Perform the procedure in Section E, Programming Preset Menu Selections, BUT press instead
of (in Steps 3 and 8). Instead of permanently overwriting the menu selection, the new set
temperature and cook time settings are only temporary. To cancel the temporary menu selection,
press any preset menu key or disconnect electrical power to the oven.
2. TO TEMPORARILY
OVERRIDE A PRE-
SET MENU SELEC-
TION:
a. Press (or any other preset menu key). The display will read . The number
in the display (1 is shown above) will match the menu key that was pressed (1-5).
b. Wait for the light to illuminate. The light will illuminate after both heating zones reach
their set temperatures.
c. Load the product onto the conveyor.
3. TO CHOOSE A PRE-
SET MENU SELEC-
TION:
a. Choose a preset menu selection, and wait for the light to illuminate.
b. Press . and will alternate in the display. The number in the
display (1 is shown above) will match the current menu selection (1-5).
c. Load the pizza product onto the conveyor.
IMPORTANT
After 1/2 of the cook time has elapsed, the temperature of the top zone will be automatically lowered.
After the entire cook time has elapsed, the program will return to its normal top zone temperature.
After is pressed, the menu selection cannot be changed until the cook time has elapsed.
4. TO COOK A SINGLE
PIZZA, OR THE LAST
OF A GROUP OF PIZ-
ZAS:
5. TO VIEW THE SET
TEMPERATURES:
6. TO VIEW HEATING
ZONE REFERENCE
TEMPERATURES:
Press either or . The top or bottom set temperature will be displayed for 5 seconds.
D. SHUTDOWN PROCEDURE
1. Switch the Power On/Off (I/O) switch to the OFF (O) position.
2. Wait for the ovens cooling fan to turn off.
3. Disconnect electrical power to the oven at the circuit breaker/fused disconnect.
7. TO VIEW THE COOK
TIME:
Press + or + . The top or bottom reference temperature will be displayed for
5 seconds.
Press . The cook time will be displayed for 5 seconds.
4

5
IMPORTANT
Adding a menu program to the oven will overwrite an existing program. DO NOT enter a new menu program over an existing
program that you wish to keep!
1. Restore power to the oven at the circuit breaker/fused disconnect.
2. Switch the Power On/Off (I/O) Switch to the ON (I) position.
E. PROGRAMMING PRESET MENU SELECTIONS
4. CHOOSE A MENU
SELECTION TO
PROGRAM
Press and hold (or any other preset menu key) until appears in the display. The
number in the display (1 is shown above) will match the menu key that was pressed (1-5).
5. SET TOP TEM-
PERATURE
6. SET BOTTOM TEM-
PERATURE
a. Press . The current top set temperature appears in the display.
b. Press and as necessary to change the displayed temperature.
 Pressing once increases the active (flashing) digit by one. This digit rolls over to its
minimum value if is pressed when the digit shows its maximum value.
 Pressing once causes the next digit to the right to become the active (flashing) digit.
If the far-right digit is flashing when is pressed, the far-left digit will flash and become
the active digit.
IMPORTANT
The allowed temperature range is 200-599°F (93-315°C). If you program a set temperature between
0°F (or 0°C) and 99°F (37°C), the heater will be set to OFF. If you program a set temperature
between 100°F (38°C) and 199°F (92°C), the temperature will automatically change to 200°F (93°C),
the display will flash, and a beep will sound to alert you to the temperature change.
a. Press . The current bottom set temperature appears in the display.
b. Press and as necessary to change the displayed temperature.
IMPORTANT
It is recommended that the top and bottom zone temperatures be set WITHIN 50°F (28°C) of each
other. Greater temperature differences may result in the hotter zone heating the cooler zone. This
can cause inconsistent cooking results.
a. Press . The current cook time appears in the display (minutes : seconds).
b. Press and as necessary to change the displayed time.
IMPORTANT
The allowed cook time range is 00:30-15:00. If you program a cook time outside of this range, the
time will change to the closest allowed time (00:30 if your time was too short, or 15:00 if it was too
long). The display will flash, and a beep will sound to alert you to the changed cook time.
8. Press ONE of the following keys:
, , or : Re-enter the top setpoint temperature, bottom set point temperature, or cook time.
: Turn off Programming Mode. This returns the oven to normal operation.
 Any other key except or : Resume operation, but leave Programming Mode active. Other Preset Menu
Selections can be programmed at this time.
3. Press and hold until appears in the display.
7. SET COOK TIME

6
Figure 5
Repositioning the draft curtains
G. DRAFT CURTAIN ADJUSTMENT
The draft curtains may need to be repositioned to provide
adequate clearance for some food products. The curtains
should be positioned to prevent drafts into the oven, and
heat loss into the environment.
The draft curtains can be removed from the oven to permit
the maximum vertical clearance above the conveyor.
WARNING
BEFORE ADJUSTING THE DRAFT CURTAINS,
SWITCH THE POWER ON/OFF (I/O) SWITCH
TO THE OFF (O) POSITION.
CAUTION - HOT
WHEN REPOSITIONING THE CURTAINS:
WEAR A HEAVY OVEN MITT.
DO NOT REACH INTO THE OVENS
COOKING CHAMBER! See Figure 5.
1. To reposition the draft curtains:
a. Loosen the two screws that hold the draft curtain
in place. See Figure 5.
b. Slide the curtain to the desired clearance above
the conveyor.
c. Tighten the two screws to hold the curtain in place.
d. Repeat these steps for the curtain at the opposite
end of the oven.
2. To remove the curtains from the oven:
a. Remove the two screws that hold the draft curtain
in place.
b. Remove the draft curtain.
c. Repeat these steps for the curtain at the opposite
end of the oven.
Loosen
screws
1
Tighten
screws
3
DO keep hands outside
of cooking chamber DO NOT reach inside cooking chamber
2Reposition
curtain
F. COOKING TIME AND TEMPERATURE
GUIDELINES
IMPORTANT
The cooking times and temperatures shown below are
recommendations only. You should always test each
food product to determine correct time and temperature
settings.
SET TEMPERATURE COOK
PRODUCT upper lower TIME
Bagel Bites 400°F/204°C 420°F/216°C 5:00
Biscuits 250°F/121°C 335°F/168°C 6:45
Bread Sticks (retherm) 425°F/218°C 475°F/246°C 4:30
Cheese Sticks (frozen) 460°F/238°C 445°F/229°C 6:00
Chicken Nuggets (frozen) 460°F/238°C 445°F/229°C 6:00
Cookies 375°F/191°C 375°F/191°C 9:00
Garlic Bread (retherm) 425°F/218°C 475°F/246°C 2:30
Hamburgers (frozen) 540°F/282°C 540°F/282°C 5:00
Jalapeno Poppers 460°F/238°C 400°F/204°C 6:45
Pizza (fresh), 12 (300mm) dia. 375°F/191°C 480°F/249°C 6:30
Pizza (retherm), slice 425°F/218°C 500°F/260°C 2:15
Pizza (frozen - slacked in
refrigerator 12 hrs. before
cooking), 6-8(150-200mm) dia. 380°F/193°C 430°F/221°C 6:30
Pizza, par baked crust 470°F/243°C 525°F/274°C 6:30
Pretzels (pre-cooked) 505°F/263°C 540°F/282°C 0:45
Sandwiches, open-faced 550°F/288°C 550°F/288°C 0:50

H. DAILY CLEANING
WARNING
WHEN CLEANING THE OVEN:
NEVER USE PRESSURIZED WATER.
NEVER USE A CLEANING SOLUTION OTHER THAN
SOAP AND WATER ON PORTIONS OF THE OVEN
THAT COME INTO CONTACT WITH FOOD
PRODUCTS. THESE AREAS INCLUDE THE
CONVEYOR BELT AND END TRAYS.
NEVER APPLY ENOUGH LIQUID TO STAND IN
PLACE ON THE OVEN. LIQUID INSIDE THE OVEN
WILL CAUSE A SEVERE ELECTRICAL HAZARD
AND MAY OTHERWISE DAMAGE THE OVEN.
CAUTION
DO NOT clean your oven using abrasive cleaners or pads.
Both will scratch and dull the finish.
1. With the conveyor running, use a brush to clean any
crumbs off the conveyor into the crumb trays.
2. Switch the Power On/Off (I/O) switch to the OFF (O)
position, and wait for the cooling fan to turn off.
3. Disconnect electrical power to the oven at the circuit
breaker/fused disconnect.
4. Allow the oven to cool.
CAUTION - HOT
DO NOT TOUCH HOT SURFACES ON THE
OVEN, OR REACH INTO THE COOKING
CHAMBER, UNTIL THE UNIT HAS COOLED
THOROUGHLY.
5. Thoroughly clean the fan grill on the front of the oven
using a stiff nylon brush. See Figure 6.
6. Clean the end trays USING SOAP AND WATER ONLY
and towel them dry. If necessary, the end trays can be
removed for cleaning by removing the screws that hold
them in place. See Figure 3 (on Page 2).
IMPORTANT
If the end trays are removed for cleaning, they must be
replaced prior to operating the oven.
7. Slide the end crumb trays out from underneath the
entrance and exit ends of the conveyor. See Figure 6.
8. Lift BOTH ends of the center crumb tray; then, slide
the tray out of either end of the oven.
9. Clean all three of the crumb trays using a commercial
oven cleaner. If necessary, towel them dry.
10. Replace the center crumb tray in the oven as shown in
Figure 7.
IMPORTANT
Proper positioning of the center crumb tray is
REQUIRED for proper cooking. Ensure that the tray
is replaced inside the conveyor frame, as shown in
Figure 7, and NOT on the floor of the cooking chamber!
11. Replace the two end crumb trays.
12. Clean the outside of the oven using a damp cloth with
EITHER soap and water OR a stainless steel cleaner.
Use caution to ensure that liquids do not enter the oven
during cleaning, especially when wiping the fan grill.
Figure 6
End crumb trays and fan grill
Figure 7
Center crumb tray placement
Slide trays straight out
(trays are underneath both
ends of conveyor)
Tray fits
BETWEEN
conveyor
belt and
support tab.
DO NOT
insert tray
on floor of
oven!
Conveyor
belt
Support
tab
7
Clean fan grill
using stiff nylon
brush

I. DISPLAY MESSAGES AND ERROR CODES
DISPLAY SHOWS PROBLEM ACTION
Re-enter the program using Set Temperatures and Cook Time
within the allowed range. Also, refer to Section E, Programming
Preset Menu Selections, on Page 5.
If the element should be on, re-enter the program using Set
Temperatures within the allowed range. Also, refer to Section E,
Programming Preset Menu Selections, on Page 5.
Choose or program a preset menu selection.
Re-enter the Preset Menu program.
Check the cooling fan (centered on the front panel of the oven) for
cleanliness and proper operation. If the fan is not running after the
oven heats, or the oven remains in a high ambient condition, contact
your local Authorized Service Agent.
Check for the proper speed setting by pressing . If the speed
setting is correct, and the conveyor continues to run at full speed,
contact your Authorized Service Agent.
Switch the Power On/Off (I/O) Switch to the OFF (O) position.
Switch the breaker/fused disconnect to the OFF position. Allow the
oven to cool for at least 30 minutes.
CAUTION - HOT
DO NOT ATTEMPT TO FREE A JAMMED CONVEYOR
BELT WHILE THE COOKING CHAMBER IS WARM.
SEVERE INJURY MAY RESULT.
If the conveyor is jammed, free the obstruction from the conveyor
belt. If the conveyor still will not operate properly after the jam is
cleared,OR ifthe errormessageappears whenthe conveyorisNOT
jammed, contact your local authorized service agent.
Contact your local authorized service agent.
Contact your local authorized service agent.
Contact your local authorized service agent.
Flashing tem-
peratures or
cook times dur-
ing program-
ming, and oven
is beeping
OFF
- - - -
E-00
E-01
E-02
E-04
E-35
E-36
E-40
Set Temperatures or Cook
Time Outside of Allowed
Range
Heating Element turned off
No Menu Selection Chosen
Preset Menu Program Lost
High Ambient Condition
Temperature inside the con-
trol enclosure exceeds 150°F
(65°C). The oven shuts down,
then beeps continuously.
Conveyor Runaway
The conveyor runs at full
speed. Theoven shutsdown,
then beeps continuously.
Top Heating Zone Failure
Bottom Heating Zone Failure
Conveyor Loose or Jammed
Conveyoris stopped whenthe
speedsetting isbetween 0:15
and 15:00.
Heating Zone Temperature
High Limit
One or both of the heating
zones have reached a tem-
perature greater than 599°F
(315°C).
8

9
SECTION 4 - ELECTRICAL WIRING DIAGRAMS
Wiring Diagram, Models TCO21140063 (208V) and TCO21140066 (240V), 1-Phase
Electrical Schematic, Models TCO21140063 (208V) and TCO21140066 (240V), 1-Phase
TOP HEATER
BOTTOM HEATER
TC
SSR 1
SSR 2
MENUSELECT®
CONTROLLER
TFRMR
230Vp
115Vs
TFRMR
230Vp
12Vs
FUSE
0.5A
TSTAT
CONTACTOR
MOTOR
FUSE
0.25A
PICKUP ASSY
CONVEYOR
REVERSING SWITCH
POWER ON/OFF
(I/O) SWITCH
FAN
CC FUSES (2)
5.0A/600V
VAR
VAR
FAN
TSTAT
N.O.
TSTAT
N.C.
POWER ON/OFF (I/O) SWITCH 2 POLE
C
L1
C2 C1
230Vp
115Vs 230Vp
12Vs
0.25A
SSR 1
SSR 2
M
CONVEYOR
REVERSING
SWITCH SSR 1 SSR 2
TOP HEATER 2500W
BOTTOM HEATER 2500W
N.C.
TSTAT
N.O.
TC
E
L1
L2 GND
N
MENUSELECT® CONTROLLER
BLACK
WHITE
RED
0.5A
CC FUSE
5.0A/600V
CC FUSE
5.0A/600V
Wiring Diagram
Ref. P/N 38248, Rev. E

is a registered trademark of CTX, A Middleby Company. All rights reserved.
CTX  1400 Toastmaster Drive  Elgin, IL 60120  USA  [phone]  FAX [phone]
Middleby Corp 24-Hour Service Hotline [phone]
www.middleby.com