Duke 59-E3C Guide

DUKE MANUFACTURING CO.
2305 N. Broadway, St. Louis, MO 63102
800-735-3853 314-231-1130 314-231-5074 FAX:
www.dukemfg.com
PN 155409
REV Y 12/07/2017
Duke 59-E3C
ELECTRIC HALF-SIZE
CONVECTION OVEN
Installation, Operation, Parts
& Maintenance Manual

This Page Intentionally Left Blank

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INDEX
59-E3C Electrical Specifications 4
Installation Instructions
A. Qualified Personnel 5
B. Delivery & Inspection 5
C. Location of Oven 5
D. Ventilation 5
E. Electrical Connections 5
F. Oven Assembly 6
G. Installation 6
H. Adjustments Associated with Installation 6
Control Panel 7
A. Program Oven 8-13
B. Operation of Oven 13
C. Cool Down Operation 13
D. Emergency Back-Up System 14
E. Troubleshooting 14-15
F. Cleaning the Oven 15
Cleaning Instructions 16
Maintenance Instructions 17
A. Adjustments 17
B. Door Adjustments 17
C. Lubrication 17
D. Calibration Check 17
Repair Parts List and Corresponding Drawings 18 - 23
Wiring Diagram 24 - 26
Please supply the Model Number and the Serial Number when
ordering replacement parts or requesting service.
We recommend service by Duke Authorized Service
Agencies during and after the warranty period.

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FOR YOUR SAFETY
Do not store gasoline or other flammable liquids in the vicinity of this appliance.
WARNING
Improper installation, adjustment, service or maintenance can cause property
damage, injury or death. Read all installation, operating and maintenance
instructions thoroughly before installing or servicing this appliance.
Model 59-E3C
ELECTRICAL SPECIFICATIONS
Power Supply Connection
TOTAL KW VOLTS 1 PHASE 3 PHASE
8.0 208 41.0 AMPS 24.0 AMPS/PH
8.0 240 36.0 AMPS 21.0 AMPS/PH

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INSTALLATION INSTRUCTIONS
A. Qualified Personnel
These installation instructions are for the use of
qualified installation and service personnel only.
Installation or service by other than qualified service
personnel may result in damage to the oven and/or
injury to the operator.
Qualified installation personnel are those individuals,
firms, companies or corporations which either in
person or through an agent are engaged in and
responsible for:
 The installation of electrical wiring from the
electric meter, main control box or service
outlet to the electrical appliance. Qualified
installation personnel must be familiar with
all precautions required and have complied
with all requirements of state and local
authorities having jurisdiction.
B. Delivery and Inspection
For transport, ovens are strapped down on wooden
skids and surrounded by "tri-wall" cartons to prevent
shipping damage. They have been carefully
inspected before they were packaged and
consigned to the carrier.
Upon Delivery of your Duke oven:
 Look over the shipping container carefully
noting any exterior damage on the
delivery receipt.
 Uncrate and check for any damage which
was not evident on the outside of the
shipping container. The carrier must be
notified within fifteen (15) days of the
delivery of the oven and the carton, skid
and all packaging materials must be
retained for inspection.
Duke Manufacturing Co. cannot assume liability for
loss or damage suffered in transit. The carrier
assumes full responsibility for the delivery in good
order when the shipment was accepted. If you need
assistance in preparing a freight claim call Duke
Manufacturing Co.
C. Location of the Oven
Proper planning and placement of the oven is
required for the proper function of the oven. Please
do consider the following requirements:
 The oven should be placed in an area
which is free from drafts and accessible
for proper operation and servicing.
 The area around the oven must be kept
clear of combustible materials. A minimum
of one (1) inch from the left or right side,
three (3) inches from the rear and eight (8)
inches from the floor must be maintained
between the oven and any combustible or
non-combustible surface.
D. Ventilation
It is important not to obstruct the cooling system flow
of the oven. Do not place any objects on top of the
oven. This oven should not be installed on a curb
base or sealed to the wall. Either condition can
prevent proper ventilation of the oven components.
The blower motor has a thermal protection device,
which will trip because of excessive ambient
temperatures at the side of the oven. If the device
trips continually, this condition should be corrected
immediately to avoid damaging the oven
permanently.
E. Electrical Connections
Verify the rating plate to be sure the oven
specifications concur with the voltage and phase to
be supplied to the oven. The rating plate and serial
number data are located behind the motor access
cover on the right side panel.
The following installation steps should only be
conducted by authorized service personnel or a
qualified electrician.
Your oven is supplied for connection to a 208 or 240
volt, 1-phase or 3-phase grounded circuit.
Before making any connections to these units, check
the rating plate to assure that the voltage and phase
rating of the oven is compatible with the electrical
supply. All ovens must be electrically grounded in
accordance with local codes. In the absence of local
codes, the National Electrical Code, ANSI/NFPA 70-
1990 (in Canada - CSA Std. C22.1) applies.

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Wiring diagrams are located on the inside of the
motor access panel, on the right side of the oven.
F. Oven Assembly
Before assembling and installing the oven, please
check to make sure that all necessary parts are
present. The contents of the package should contain
a detailed packaging list. Depending on the specified
equipment, the shipped package also should
contain:
- Mounting equipment (legs, casters, feet)
- Rack frame and oven racks (in the cavity)
G. Installation
The following installation steps should only be
conducted by authorized service personnel.
Leg Attachment (in lieu of stand)
 Once the oven has been removed from
the carton, lay it on its left side (the side
without the controls).
 Hold the leg and align with the matching
holes in base and leg flange. Carefully
start the 5/16 18 bolts, (avoid cross-
threading), by turning clockwise and
tighten to the nearest full turn. A total of
(12) 15/16-18 X 3/4 bolts, flat washers
and lock washers are required to secure
all legs.
 Once legs are secured, add two (2)
storage shelves between the four (4) legs.
Secure these by using the 1/4-20 X 3/4
self-threading screws. After completion,
carefully lift the oven to an upright
position.
To level the unit, raise or lower the adjustable feet
as required.
H. Adjustments Associated with
Installation
Each oven section and all its components parts have
been tested thoroughly and inspected before your
oven was shipped from the factory. However, it is
sometimes necessary to further test or adjust the
oven once it has been installed. Such adjustments
are the responsibility of the Dealer or Installer.
These types of adjustments are not considered
defects, rather a normal and routine part of the
proper installation of the equipment.
These adjustments include but are not limited to:
 adjustments and recalibration of the
controller
 adjustment to the doors, leveling
 and tightening of fasteners.
No installation should be considered complete
without proper inspection and, if necessary, any
adjustments by qualified service or installation
personnel.

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Oven Controls
Main Power ON/OFF Switch
Power On Light -Indicates elements
are on. Light will go out when set
temperatures has been reached.
Indicates Time and/or Temperature
UP/DOWN Programming Keys
Preprogrammed buttons for 1
through 5 different recipe settings.
10 Amp Time Delay Protective Fuses
1
2
3
4
5
6

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A. Programming Oven
PROGRAMMING DUKE OVENS
For additional information on Duke Ovens including authorized service representatives and
replacement Operation Manual call [phone] or www.dukemfg.com
OVEN RACK POSITIONING
To help ensure proper baking, oven racks should be on the 3rd, 6th, and 9th rungs (counting from the
bottom rack first).
PROGRAMMING PARAMETERS
Button 1 Button 2 Button 3 Button 4 Button 5
# of Trays / Product 1 2 3 Mac & Chz 1 Mac & Chz 2
Cook Time 10:00 11:30 11:30 9:00 11:00
Temperature 375° 375° 375° 375° 375°
On Time 60 85 100 60 85
Duty Cycle 160 160 160 160 160
Offset 30 30 30 30 30
Shelf Position 6 6 & 9 3, 6 & 9 6 3 & 6
Timer Button # Use Timer Button # Use
1 One pan of biscuits 2 Two pans of biscuits
3 Three pans of biscuits 4 One pan of Mac & Cheese
5 Two pans of Mac & Cheese
COOK TIME SETTING PROCECDURES BUTTON 1 – 10:00 MINUTES
Step 1 (Change Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #1 (Display will show 2)
Step 3
Press button #1 (Display will show current bake time)
Step 4
Use up/down arrows to change baking time to desired time (10:00)
Note: To change seconds in some models, hold in the start (#1) button then use Up / Down
Arrows to change seconds
Step 5
Press enter button to store change
Now test timer button number 1 to make sure it times for 10:00 minutes

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COOK TIME SETTING PROCECDURES BUTTON 2 & BUTTON 3 – 11:30 MINUTES
Step 1 (Change Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #1 (Display will show 2)
Step 3
Press button #2 (Display will show current bake time)
Step 4
Use up/down arrows to change baking time to desired time (11:30)
Note: To change seconds in some models, hold in the start (#2) button then use Up / Down
Arrows to change seconds
Step 5
Press enter button to store change
Step 6 (Change Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 7
Press button #1 (Display will show 2)
Step 8
Press button #3 (Display will show current bake time)
Step 9
Use up/down arrows to change baking time to desired time (11:30)
Note: To change seconds in some models, hold in the start (#2 or #3) button then use Up /
Down Arrows to change seconds
Step 10
Press enter button to store change
Now test timer button number 2 and 3 to make sure it times for 11:30 minutes
COOK TIME SETTING PROCECDURES BUTTON 4 – 9:00 MINUTES (MAC & CHEESE)
Step 1 (Change Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #1 (Display will show 2)
Step 3
Press button #4 (Display will show current bake time)
Step 4
Use up/down arrows to change baking time to desired time (9:00)
Note: To change seconds in some models, hold in the start (#4) button then use Up / Down
Arrows to change seconds
Step 5
Press enter button to store change
Now test timer button number 4 to make sure it times for 9:00 minutes

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COOK TIME SETTING PROCECDURES BUTTON 5 – 11:00 MINUTES (MAC & CHEESE)
Step 1 (Change Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #1 (Display will show 2)
Step 3
Press button #5 (Display will show current bake time)
Step 4
Use up/down arrows to change baking time to desired time (11:00)
Note: To change seconds in some models, hold in the start (#5) button then use Up / Down
Arrows to change seconds
Step 5
Press enter button to store change
Now test timer button number 5 to make sure it times for 11:00 minutes
ON TIME SETTING PROCECDURES BUTTON 1
Step 1 (Change On Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #3 (Display will show 2)
Step 3
Press button #1 (Display will show current on time)
Step 4
Use up/down arrows to change the on time to desired setting (60)
Step 5
Press enter button to store change
ON TIME SETTING PROCECDURES BUTTON 2
Step 1 (Change On Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #3 (Display will show 2)
Step 3
Press button #2 (Display will show current on time)
Step 4
Use up/down arrows to change the on time to desired setting (85)
Step 5
Press enter button to store change

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ON TIME SETTING PROCECDURES BUTTON 3
Step 1 (Change On Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2 Press button #3 (Display will show 2)
Step 3 Press button #3 (Display will show current on time)
Step 4 Use up/down arrows to change the on time to desired setting (100)
Step 5 Press enter button to store change
ON TIME SETTING PROCECDURES BUTTON 4
Step 1 (Change On Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #3 (Display will show 2)
Step 3
Press button #4 (Display will show current on time)
Step 4
Use up/down arrows to change the on time to desired setting (60)
Step 5
Press enter button to store change
ON TIME SETTING PROCECDURES BUTTON 5
Step 1 (Change On Time)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #3 (Display will show 2)
Step 3
Press button #5 (Display will show current on time)
Step 4
Use up/down arrows to change the on time to desired setting (85)
Step 5
Press enter button to store change
Note: The below settings for Temperature, Duty Cycle and Offset Setting, apply to all timer
buttons and should never vary from the recommended Settings

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TEMPERATURE SETTING
IMPORTANT NOTE: Display will show 375° actual temperature is approximately 400°
Step 1 (Change Temperature)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #2 (Display will show the current temperature)
Step 3
Use up/down arrows to change the on time to desired setting (375)
Step 4
Press enter button to store change
DUTY CYCLE SETTING
Step 1 (Change Duty Cycle)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #4 (Display will show the Duty Cycle Value)
Step 3
Use up/down arrows to change the Duty Cycle Value to desired setting (160)
Step 4
Press enter button to store change
OFFSET SETTING
Step 1 (Change Offset)
Press number 1 and number 5 buttons at the same time (Display will show 1)
Step 2
Press button #5 (Display will show the current Offset Value)
Step 3
Use up/down arrows to change the Offset value to desired setting (30)
Step 4
Press enter button to store change

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CONTROLLER RESET
In rare situations, such as a lightening strike near
the restaurant, the computer may lose its
program, or become "locked up". If this should
happen, press the RESET switch to reset the
computer, or turn the power to the oven off and
back on. Resetting the computer resynchronizes
its program flow.
B. Operation of the Oven
Operation of the computerized Auto Rack Load
Controller is quite simple.
Preheat: Close oven door and turn power
knob clockwise to "cook" position.
The digital display will illuminate and display a
temperature of 212° ( the minimum displayed
temperature). The amber light will also be lit
indicating the oven is heating. When the oven
temperature begins to exceed 212°, the actual
oven temperatures will be displayed until the
temperature set point has been reached and the
oven ready light has gone off. At this point, the
display shows 9:00 minutes, the cook time for
one tray. Always keep oven door closed until
biscuits are ready to be loaded onto a rack.
Baking: Open door and quickly load tray(2).
(Slide tray all the way to the back wall, then
slide forward one inch.) Close door and press
the switch that corresponds to the number of
trays to be loaded (1,2, or 3).
The pressed switch will illuminate, indicating
baking has begun. The time displayed begins
counting down. When bake cycle is complete,
the switch you originally pressed will flash and
the alarm sounds. Press the flashing switch to
turn off alarm. Remove the product.
Rack Positions: 3,6 and 9 counting from
bottom up.
1 tray: Use top rack position. Press switch #1.
2 trays: Use top and middle rack positions. Press
switch #2.
3 trays: Use Top, middle and bottom positions.
Press switch #3
C. Cool Down Operation
The oven has a cool down feature to expedite
cooling of the oven interior so that it can be
cleaned.
To initiate the cool down feature, turn the power
switch counter clockwise to the off position. Open
door and turn the power switch counter clockwise
to the cool down positions. The oven fan will only
operate, circulating cool air in the oven cavity.
When the oven interior is cooled sufficiently, turn
the power switch clockwise to the off position.
Begin the daily cleaning procedures.
8
7
6
5
4
3
2
1

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D. Emergency Back-Up System
Your oven is equipped with an emergency back-up
system to be used should the computer controller
ever malfunction. It is intended only to be used
to keep you in operation until a service agent
arrives to provide repairs.
Operation: Turn power switch to off position. Push
the toggle switch located on the right access panel
of the oven to the up position.
Turn power switch clockwise to cook position. The
oven will now maintain a temperature of 375° by the
back up thermostat. You will need to manually time
your bake cycle until the biscuits are baked. No
display will be illuminated.
Call your local authorized service agent to
render repairs as soon as possible.
E. Troubleshooting (Only by an authorized
service agent)
Oven Not Heating
1. Oven heating lamp is off.
2. Digital display in the controller is not lit.
(Make sure backup thermostat control
switch is in the down position.)
3. Check the 24VAC from the transformer. If
voltage is present, replace the controller.
4. If no voltage, check the transformer and
transformer input voltage. Make certain the
correct transformer input voltage taps are
used.
Transformer Primary Voltage
Orange 240-L1
Red 208-L1
WHITE 120-L1
BLACK L2
Transformer Secondary Voltage
Yellow-blue 12V (pin 4 & pin3)
Yellow-blue 12V (pin 2 & pin3)
Yellow
-
yellow
24V (pin 4 & pin 2)
DIGITAL DISPLAY IN THE CONTROLLER IS LIT,
OVEN NOT HEATING
A simple test.
1. Turn the oven off.
2. Disconnect the oven control connector to
J1 on the PCB
3. Insert a short insulated jumper wire
between pins 1 and 3 in the oven control
connector. Make sure the wire is
insulated and bare wire cannot touch
ground or other metal parts. (CAUTION:
Line voltage present.)
4. Turn the oven on.
5. If the oven heats up, turn the oven off,
remove the jumper from the oven control
connector, and replace the oven control
connector. Check the controller's
setpoint. If the setpoint is correct,
replace the controller.
6. If the oven does not heat up, the
problem is within the oven.
7. Turn the oven off.
8. Remove the jumper wire and replace the
connector.
9. Oven Heating Lamp is on. The problem
is within the oven.
OVEN TOO HOT (OVEN STAYS ON)
1. Turn the oven off.
2. Disconnect the oven control connector
(J1)
3. Turn the oven on.
4. If the oven heats up, the problem is
within the oven.
5. If the oven does not heat up, turn the
oven off, and replace the oven control
connector on J1, then turn the oven back
on. Proceed to 6.
6. Press the ENTER switch to read the
oven's temperature.
7. Indicated temperature is obviously less
than it should be.
8. The thermocouple cable may be shorted,
or,
9. The controller may be defective.
10. Replace the temperature probe.
11. If the temperature now indicates the
correct temperature, the problem was
the temperature probe.
12. If the temperature still indicates lower
than expected, replace the controller.

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OVEN NOT RECOVERING WHEN
BAKING
1. Check the Duty Cycle ON-TIME setting.
2. Measure the actual ON-TIME and OFF-
TIME with a stopwatch or use the
second hand of a wristwatch or clock to
see if the oven is being controlled
properly.
3. If the oven turns on and off at the proper
times, the fault is within the oven.
Check amp draw to each element. Be
certain oven is supplied with proper
voltage. (240 volt elements on 208 volt
power supply, for instance.)
4. If the oven does not turn on and off at
the proper times, replace the controller.
BISCUITS TOO DARK (OVER BAKED)
1. Reduce the duty Cycle ON_TIME until
the biscuits are the correct brownness.
BISCUITS TOO LIGHT (OVER BAKED)
1. Increase the Duty Cycle ON-TIME until
the biscuits are the correct brownness.
Control Failure Diagnostics
There are two types of failures that will shut down
the oven and display numbers that indicate the
cause of the trouble:
1. Temperature Probe Opens
Should the controller's probe/cable become
an open circuit following occur:
A. The oven is turned off
B. The alarm begins beeping
C. The display will show four (4) nines
(9999)
Press one of the five START switches to
turn off the alarm.
Replace the probe/cable.
2. Oven Stays On Too Long
If the oven stays ON for over fifteen (15)
minutes, and this ON condition is caused by
the controller receiving an improper
temperature signal, the following will occur.
A. The oven is turned off.
B. The alarm begins beeping
C. The display will show four (4) sevens (7777)
Press one of the START switches to turn off
the alarm.
Check the probe's temperature by pressing
the ENTER switch. If the indicated
temperature is less than the actual oven
temperature, the probe cable is probably
shorted, causing a second thermocouple at
a lower temperature. Replace the
thermostat probe/cable.
If the temperature shown in the display is
about the same as that of the oven's, the
problem is probably the Controller. Replace
the controller.
F. Cleaning of the Oven
The stainless steel on your oven can be kept clean
with a good stainless steel cleaner, man of which
are on the market. The painted surfaces should be
wiped clean regularly with a MILD detergent.
Moisten a cloth and wipe down the oven while it is
COLD. Wiping down an oven while it is hot will
cause streaking and otherwise unsatisfactory
results. Once the oven is clean, it can be wiped
down with light oil.
Porcelain oven interiors should be cleaned
regularly using a degreasing agent. For heavier
deposits a commercial oven cleaner such as Dow
Oven Cleaner, Easy-Off, or Mr. Muscle can be
used. Care must be taken to prevent these
alkaline-type cleaners from coming in contact with
any aluminized steel surfaces in the oven,
including the blower wheel.
The racks and rack supports can be removed and
soaked in a solution of ammonia and water.
Make certain that all parts are thoroughly rinsed
before returning to use.
NOTE: Never steam clean or hose down
with water. Electric component will fail
due to moisture.

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DAILY
CLEANING INSTRUCTIONS
1. Clean the porcelain interior using a degreasing agent. For heavier deposits a
commercial oven cleaner such as Dow Oven Cleaner, Easy-Off or Mr. Muscle can
be used.
2. Clean exterior painted surfaces with warm water and a mild detergent. Moisten a
cloth and wipe down the oven while it is COLD.
3. Clean Stainless steel on the oven with a good stainless steel cleaner.
4. Make sure that all parts are thoroughly rinsed before returning to use.
!Caution!
Do not use caustic cleaners, acids, ammonia products or abrasive cleaners or cloths.
These can damage the stainless steel and door gaskets.
Never steam clean or hose down with water. Electric com
p
onent will fail due to moisture.
WEEKLY
The racks and rack supports can be removed and soaked in a solution of ammonia and
water. Make certain that all parts are thoroughly rinsed before returning to use.
MONTHLY
1. Check door handle screws for ti
g
htness.
THREE MONTHS
1. Check the door gasket seal on the oven and proofer for leaks. See the section on
Door Adjustments and Gasket Maintenance for help.
SIX MONTHS
Before performing control panel maintenance, main distribution panel circuit breaker for
oven must be turned off. This maintenance should be preformed by Qualified
Maintenance Personnel only. Read and follow the manufacturers instructions, Material
Safety Data Sheets (MSDS) and Workplace Hazardous Material Information Systems
(WHMIS) before using any type of cleaning chemicals, degreaser, etc.
1. Clean Control Panel Mylar using a mild degreaser and water.
2. Clean Control Compartment Interior – Use commercial electronic component
spray (if necessary) to de-grease the control compartment (see Note above).
3. Inspect/Replace any or all wiring which is saturated with oil.
4. Inspect Oven Door-lubricate door plunger assembly and strike plate with food
grade high temperature lubricant such as Lubriplate FGL-1, adjust door as
necessary
5. Inspect Element Wire Connections-take amp readings of elements.
6. Inspect Blower Motor – Degrease as necessary
7. Inspect Blower Wheel – Clean with ammonia and water solution.
8. Inspect Back-up Thermostat – Check calibration.

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MAINTENANCE INSTRUCTIONS
These maintenance instructions are for the use of
qualified service personnel only. Service by other
than qualified personnel may result in damage to
the oven and/or injury to the operator.
Qualified service personnel are those individuals,
firms, companies or corporations which either in
person or through an agent are engaged in and
responsible for repair or servicing of commercial
food preparation equipment, who are experienced
in such work, familiar with all precautions required,
and have complied with all requirements of state
and local authorities having jurisdiction.
If you should require assistance in the selection of a
qualified service agency, please contact Duke
Manufacturing Co.'s Service Department at 800-
735-3853.
A. Adjustments
Quite often malfunctions which are attributed to
defects may be repaired by adjusting certain parts
rather than replacing them.
B. Door Adjustment
The door switch is located behind the lower front
cover, on the right or left side. (Fig.1) The door
switch (A) is activated by a cam (B) which is
mounted to the door's hinge pin with a set screw.
Position the door so it is nearly closed but not
latched. To adjust the cam:
 Loosen the set screw and rotate the cam
until you hear the switch click.
 Tighten the set screw in the cam.
 Test the door to make certain the switch will
make contact with the doors closed.
 Torque the setscrew to 60 in-lbs.
 Replace the compartment cover.
C. Lubrication
The door plunger assembly requires periodic
lubrication by the operator to ensure smooth,
trouble-free operation.
Application of a Food Grade High Temperature
Lubricant such as Lubriplate FGL-1 is
recommended at least bimonthly. Apply lubricant
to the plunger and strike plate sparingly. If
necessary, lubricate at more frequent intervals.
D. Back-up thermostat calibration check:
 Turn the oven on by turning the Power
Switch to the ON position.
 Open the doors and place a thermocouple
in the center of the middle oven rack. A
reliable mercury-type thermometer can be
substituted if a pyrometer is not available.
 Turn the power switch to the off position.
 Turn the thermostat dial to 375ºF (177ºC).
Allow the oven to preheat ½ hour.
 Note the maximum and minimum
temperatures through several cycles.
 If the reading on the pyrometer (or
thermometer) is less than 10ºF different
from the setting of the thermostat, no
adjustment is needed. If this reading is
more than 10ºF, proceed with calibration
procedure.
To Recalibrate:
 Remove the thermostat knob by loosening
the setscrew and pull the knob forward.
Take care not to rotate the thermostat
stem, which will change the setting.
 With a very small screwdriver, turn the
screw located in the bottom of the hollow
of the stem clockwise to lower the
temperature of counterclockwise to raise
the temperature. DO NOT allow the stem
of the thermostat to rotate as your turn the
screw.
Caution: Maximum turn of screw “A” is
1-1/2 turns – clockwise or counter-
clockwise.
This thermostat is a direct-acting (opens on
temperature rise) device.

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Model 59-E3C Half-Size Electric Convection Oven
Repair Parts List
Item # Part # Description
1 155302 Mylar
2 153142 Knob, control
3 153204 Light, oven ready, 208v/240v
4 153200 Holder, fuse
5 153201 Fuse, 10 amp
6 153460 Switch, rotary
7 155301 Transformer 208/240V
155995* Transformer 480/240V 2kVA
8 600108 Controller (Used after July 1998)
8 155526 Controller Conversion Kit (Used prior to July 1998)
9 155304 Probe
10 153210 Terminal block
11 153156 Contactor, 208v/240v, 3-pole, 50 amp
12 153034 Motor, 208/240v, 1-speed
13 153093 Fan Wheel
14 155079 Element, outer, 240v, 2.667 KW
14 155076 Element, outer, 208v, 2.667 KW
15 155078 Element, center, 240v, 2.667 KW
15 155075 Element, center, 208v, 2.667 KW
16 155077 Element, inner, 240v, 2.667 KW
16 155074 Element, inner, 208v, 2.667 KW
17 155113 Support, rack, oven
18 155114 Rack, oven
19 155404 Handle, door
20 155451* door, with glass hinged right
155454 Door, with glass hinged left
21 155132 Glass only
22 155107 Actuator, door switch
23 148077 Switch, micro, door
24 153056 Bearing, door
25 155007 Gasket, door top
26 155006 Gasket, door bottom
27 155008 Gasket, door side (2)
28 153416 Catch, door
29 153801 Latch, roller assembly
30 155318 Switch, toggle, back up system
31 149403 Thermostat, backup
32 153142 Knob, backup thermostat
33 153588 Overlay, backup thermostat
34 600100 Kit, Flue Guard (Optional)
35 155125 Bracket Stacking
36 155309* Harness, Electronic Panel
* NOT SHOWN
Diagrams of parts on following pages

19 of 28
MODEL 59E3C OVEN CONTROLS

20 of 28
INTERIOR OVEN COMPONENTS