Improper installation, adjustment, alteration, service or maintenance can cause
property damage, injury or death. Read the installation, operating and maintenance
instructions thoroughly before installing or servicing this equipment.
ELECTRICAL SPECIFICATIONS
Total KW VOLTS 1 PHASE 3 PHASE
8.0 208 41.0 24.0 amps/pl
8.0 240 36.0 21.0 amps/pl
Power Supply Connections
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INSTALLATIONINSTRUCTIONS:
A. QualifiedPersonnel
These installationinstructionsarefortheuseof
qualified installationandservicepersonnelonly.
Installation orservicebyotherthanqualifiedpersonnel
may result in damagetotheovenand/orinjurytothe
operator.
Qualified installationpersonnelarethoseindividuals,
firms, companiesorcorporationswhicheitherinperson
or through an agentisengagedinandresponsiblefor:
• The installationofelectricalwiringfromthe
electric meter,maincontrolboxorserviceoutlet
to the electricalappliance.Qualifiedinstallation
personnelmustbefamiliarwithallprecautions
required and have complied with all
requirements of state and local authorities having
jurisdiction. See: National Electrical Code,
ANSI/NFPA70.
B. Delivery and Inspection
Duke Manufacturing Co. does everything within its
power to insure you received your oven in good
condition. They are strapped down on heavy wooden
skids and surrounded by heavy "tri-wall" cartons to
prevent shipping damage. They have all 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,
which must also be signed by the driver/ delivery
person.
• Uncrate and check for any damage, which was not
evident on the outside of the shipping container.
This is called concealed damage. 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 delivery in good order when the
shipment was accepted. However, we are prepared to
assist you in filing your claim.
C. Location of the Oven
Proper planning and placement of the oven will give
you the best results in terms of long-term user
convenience and satisfactory performance. We urge you
to give adequate thought in the placement of your oven
prior to its arrival.
• The oven should be placed in an area that is free
•Theareaaroundtheovenmustbekept clear of
combustiblematerials.Aminimum clearance
of:
CombustibleNon-
Combustible
RIGHTSIDE
LEFTSIDE
REAR
FLOOR
1"0”
1"0”
3"3”
8"8”
Mustbemaintainedbetweentheoven and any
combustible or non-combustible surface.
It is also important not to obstruct the natural flow
of ventilation air if the oven is to operate properly.
This oven should not be installed on a curb base or
sealed to the wall. Either condition can restrict the
flow of air to or prevent proper ventilation of the
blower motor. The blower motor has a thermal
protection device, which will trip, because of
excessive ambient temperatures at the back of the
oven. This condition should be corrected
immediately to avoid damaging the oven
permanently.
The flue located near the top at the rear of the oven
must not be obstructed. Proper ventilation is
important to avoid high temperatures at the rear of
the oven. High temperatures can cause premature
blower motor failure.
Before making any connections to the oven, check
the rating plates to be sure the oven specifications
concur with the voltage and phase to be supplied to
the oven.
The rating plate is located behind the lower front
panel. To access, loosen the four screws below the
doors, and pull the panel outward.
The plate bearing the oven’s serial number is
attached to the underside of the upper ledge above
the control panel.
D. Electrical Connections
Your oven is supplied for connection to a 208, 240,
440 or 480 volt grounded circuit. The electric
motor, oven lights, indicator lights and control
circuits are connected internally and require no
secondary power supply.
Before making any connections to these units, check
the rating plate to assure that the voltage and phase
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of the oven is compatiblewiththeelectricalsupply.
When installing,allovensmustbeelectricallygrounded
in accordance withlocalcodesorintheabsenceoflocal
codes, with theNationalElectricalCode,ANSI/NFPA
70 (in Canada –CSAStd.C22.1).Wiringdiagramsare
located in the controlcompartmentarea.Standard
wiring schematicsarealsoincludedatthebackofthis
manual.
The proper methodofconnectingthepowersourceto
the terminal blockisshownintheExplodedViews
Section.
Before assembling and installing the oven, please check
to make sure that all necessary parts are present. In
addition to the oven itself, there will also be legs, feet or
casters, the vent guard, (for double sections, retaining
clips, vent riser) and miscellaneous hardware. Please
check the interior of all oven sections for the parts
needed to assemble and install your oven(s).
Leg Attachment
•Once the oven has been removed from the
carton, lay it on its lift side (the side without
the controls).
•Position one of the legs against the bottom of
the oven, aligning the center hole on the leg
plate with the center threaded hold on the
bottom of the oven.
•While supporting the leg, carefully start the
bolt in the center hole and finger tighten.
(Avoid cross threading.)
bottomofthecasterto expand the
compressionsleeveuntilsecure.
•Repeatthisprocessfortheremaining legs.
NOTE:Thecasterswithlockingbrakes are best
mountedonthefrontsideoftheoven for easier
access.
NOTE: If you plan to use casters, a fixed restraint of
the proper length is recommended to eliminate
strain on the connecting wire. If the oven is removed
from its normal position, the restraint must then be
reattached when returned.
F. Adjustments Associated with Installation
Each oven section and all its component 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 thermostat
• Adjustment to the doors.
• Leveling.
• Tightening of fasteners.
No installation should be considered complete
without proper inspection and, if necessary, any
adjustments by qualified service or installation
personnel.
Level the oven by turning the adjustable feet in or out as
needed.
buzzeronexpirationofoperatorset time as
a reminder to remove product at end of
cooking cycle.
• 5. The Fuse Holders – Contain circuit
protecting fuses.
• 6. The Fan Speed Switch (Optional) - Sets
fan speed to high or low.
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Operating Instructions-“V”Controller
Timer Resolution
The Timer displaystimefrom0to60minutes,inone-
minute increments.
TemperatureScale
The TemperatureControldisplaysthetemperaturein
°F. The temperaturerangeisfrom150°F-500°F,in
25°F increments.
Cool Down
This feature enablestheoventobecooledrapidlyby
allowing the fantooperatewiththeheatingelements
turned off. Toactivate,turnthePowerSwitchtothe
COOL positionandopentheovendoor.Whenthe
door is openedenoughtodisengagethedoorswitch,
the fan will turn on. Closing the door will turn the fan
off.
Fan Speed Switch
The fan speed can be set to high or low speed by
placing the FAN HI/LOW button to the desired setting.
Cooking
A cooking cycle can be initiated as follows:
• Turn the Power Switch to COOK position.
• Set the Cooking Temperature by turning the
TEMPERATURE dial to the desired
temperature. The OVEN READY indicator
light will turn on.
•When the OVEN READY indicator light turns
off, place the product to be cooked in the
oven.
•Set the cooking Time by turning the COOK
TIMER dial to the desired time.
During the Cook Cycle, The OVEN READY Indicator
light will cycle on and off with the heating elements.
•When the COOK TIMER reaches “zero”, the
alarm will sound.
•To cancel the alarm, turn the COOK TIMER
dial to the OFF position.
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“X”Controller
OvenControls–SolidState Digital
Controls
•1.ThePowerSwitch–Controlspower to
ONorCoolDownfunction.
•2.TheIndicatorLight– When lit
indicatesburnersareoperating. When the
lightgoesout,theovenhasreached its
cookingtemperature.
The Timer displaystimeintwo(2)differentscales.From
0 to 60 minutes,thetimerisdisplayedinMinutes/Seconds
(“MN” Mode).From1to12hours,thetimeisdisplayedin
Hours/Minutes(“HR”Mode).Themodeindicatorsare
located in the firstnumberdigittotheleftofthecolon.
TemperatureScale
The controllercanbesettodisplaytoetemperaturein°For
°C as follows:
• Turn PowerSwitchtoCOOKposition.
• Set TIMEto00:00andTEMPso“20”is
displayed in the right two temperature digits.
•Press and hold both the START TIME and
CANCEL buttons for 5 seconds. The control will
display “CCC” and “FFF” in the temperature
digits to indicate it has entered the mode.
•Turn the TIME or TEMP dial to toggle
between “CCC” and “FFF”.
•Press CANCEL to exit.
Power Input Frequency
The controller can be set to operate on 50Hz or 60Hz as
follows:
• Turn Power Switch to COOK position.
• Set TIME to 00:00 and TEMP so “40” is
displayed in the right two temperature digits.
•Press and hold both the START TIME and
CANCEL buttons for 5 seconds. The control
will display “50” and “60” to indicate it has
entered the mode.
•Turn the TIME or TEMP dial to toggle
between “50” and “60”.
•Press CANCEL to exit.
Actual Temperature Button
The actual temperature can be viewed by pressing and
holding the START TIME button for approximately 2
seconds. The temperature will be displayed in the
temperature digits. This can be viewed anytime the
oven is in operation, except when the oven is in the
HOLD mode.
•PressandholdboththeSTARTTIME and
CANCELbuttonsfor5seconds. The
controlwilldisplay“Con”or“CYC” to
indicateithasenteredthemode.
•TurntheTIMEandTEMPdial to toggle
between“Con:”and“CYC”.
•PressCANCELtoexit.
ThefancannotbesettocycleiftheHOLD mode is
tobeused.
FanSpeedSwitch
Thefanspeedcanbesettohighorlowspeed by
placingFANHI/LOWswitchtothedesired setting.
Thedisplaydoesnotindicatewhichmodethe fan is
operating.
Cool Down
This feature enables the oven to be cooled rapidly
by allowing the fan to operate with the burners
turned off. To activate, turn the Power Switch to the
COOL position and open the oven door. When the
door is opened enough to disengage the door switch,
the fan will turn on. Closing the door will turn the
fan off.
Cooking
A cooking cycle can be initiated as follows:
• Turn Power Switch to COOK position.
• Set the cooking time by turning the TIME
dial until the desired time is shown on the
display.
•Set the desired cooking temperature by
turning the TEMP dial until the desired
temperature is shown on the display. The
indicator light will turn on and the display
will flash when a minimum temperature of
150°F is entered. The flashing display
indicates that the oven is in its Preheating
Mode. It will no longer flash once the
oven reaches the temperature set point.
The indicator light will cycle on and off
with the burners.
•Press the START TIME button to begin the
timed cooking cycle. Pressing the
CANCEL button will “zero” the timer at
any time.
Pulse
The controller can be set to operate the fan
continuously, or cycle on and off every 30 seconds
during the COOK cycle as follows:
• Turn Power Switch to COOK position.
• Set TIME to 00:00 and TEMP to 000.
Cook & Hold
The controller can be set to hold the oven at a set
temperature at the end of the cooking cycle as
follows:
• Turn Power Switch to COOK position.
• Set TIME to 00:00 and TEMP so “50” is
displayed in the right two temperature
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digits.
• PressandholdboththeSTARTTIMEand
CANCELbuttonsfor5seconds.Thecontrol
will display“HOLD”inthetimedigits,and
the currentHoldSetTemperatureinthe
temperaturedigitstoindicateithasenteredthe
mode.
•Turn theTIMEorTEMPdialtosetthedesired
temperature.Settingitto“000”willturnthe
Hold modeoff.
•PressCANCELtoexit.
When the timercountsdowntozero,thealarmwill
sound for 5 secondsand“HOLD”willappearinthe
display with thecurrentholdtemperature.Thetimer
will not count up.Manualtimingisrequired.
Offset
To compensate for the difference in temperature from
the sensing element to the center of the oven the control
can be programmed with an offset. The offset is
adjustable in 1ºF increments up to a maximum of
±49ºF.
Note: a negative offset will have the effect of raising
the cavity temperature, (Example: an oven set at 375ºF
is determined to run at a 350ºF internal oven
temperature. By programming in a -25ºF offset the
oven will run at a 375ºF internal oven temperature.).
The offset is programmed as follows:
• Turn Power Switch to COOK position.
• Set TIME to 00:00 and TEMP so “10” is
displayed in the right two temperature digits.
•Press and hold both the START TIME and
CANCEL buttons for 5 seconds. The control
will display “UPO” in the time digits, and the
current Offset in the temperature digits to
indicate it has entered the mode.
•Turn the TIME or TEMP dial to raise or lower
the offset.
•Press CANCEL to exit.
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“XX”Control
OvenControls–SolidStateDigitalControls
•1.ThePowerSwitch–ControlsPowerto ON or Cool
DownFunction
•2.TheIndicatorLight–Whenlitindicates burners are
operating.Whenthelightgoresout,theoven has reached
itscookingtemperature.
•3.TheDigitalDisplay–Indicates time and/or
temperature.
•4.TheTimeAdjustmentButtons–Sets/adjusts
countdowntimerforcookcycle.
•5.TheTemperatureAdjustmentButtons – Sets/adjusts
cookingTemperature.
•6. The Temperature Digital Display: Displays the
temperature inside the oven.
•7. The Pulse Fan Button: Enables/Disables the Pulse Fan
Function.
• 8. The Start/Stop Button: Starts/Stops the cooking cycle.
• 9. The Hold Button: Enables/Disables the Hold Function.
• 10. The Fan Speed Switch: (Optional) – Sets fan speed to
high or low.
•11. The Fuse Holders: Each holds a 10 AMP Time Delay
Fuse.
Programming and Operating Instructions –
“XX” Controller
Timer Scale: The Timer displays in two (2) different scales.
From 0 to 60 minutes, the timer is displayed in
Minutes/Seconds. This is indicated by the MIN/SEC light on
the controller. From 1 to 2 hours, the time is displayed in
Hours/Minutes, indicated by the HOUR/MIN light on the
controller. When the oven is first turned on, the display will
show the last cook time programmed.
Time Adjustment: To increase the cook time, press the top (▲)
button located next to the Time Display. To decrease the cook
time, press the bottom button (▼) located next to the Time
Display.
Temperature Scale: The controller can be set to display the
temperature in ºF or °C as follows:
1) Remove/move control panel so that you have access to the
back of the control board.
2) Locate the blue jumper at connection J3.
3) For °F operation the jumper is not needed. Place the jumper
on one of the pins for future use.
4) For °C operation place the jumper across the two pins of J3.
When the oven is first turned on, the display will show the last
cook temperature programmed. You can view the actual
temperature of the oven by pressing both of the Temperature
Adjustment buttons at the same time.
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“Z” Controller
OvenControls–SolidStateDigitalControls
•1.ThePowerSwitch–Controlspower to ON or Cool
Downfunction.
•2.TheIndicatorLight–Whenlitindicates burners
areoperating.Whenthelightgoesout, the oven has
reacheditscookingtemperature.
•3.TheDigitalDisplay–Indicates time and/or
temperature.
•4.TheTimeDial–Setscountdown timer for cook
cycle.
•5. The Temperature Dial – Sets cooking
temperature.
• 6. The Start Time Button – Initiates timing cycle.
• 7. The Cook/HI-LO Button – Sets fan speed to high
or low.
•8. The Program Button – 5 individual time and
temperature programs. Operator programmed.
•9. The Cancel Button – Cancels preset time and/or
temperature.
•10. The Event Button – Used for programming oven
functions that will be chained into one cooking
routine.
•11. The Program Mode – ON/OFF – Switches from
Operating to Programming Mode and back.
•12. The Fan Continuous/Cycle Button – Allows
setting of fan to run continuously or turn on and off
with the burners during the cooking cycle.
•13. The Hold Button – Allows setting of hold time
and temperature.
•14. The Fuse Holders – Contain circuit protecting
fuses..
12 of 52
PROGRAMMING&OPERATING
INSTRUCTIONS“Z”CONTROLLER-
This controllerprovidesfive(5)automaticcooking
chains, which theusercanprogram.Itwillalsoalow
non-automaticcookingandcook&holdoperations.
The fan motorcanbecontrolledtocycleonandoff
with the burnersorruncontinuously.Highorlowfan
speeds can be selected.
The cooking chainsareparticularlyusefulwhenthe
user is producingbatchesofthesameproducttime
after time, especiallyifchangestotemperatureorfan
speed are requiredduringthecookingcycle.Theuser
can program oneofthefiveprogrambuttonsfora
particular productandsimplypressonebuttonwhen
it is loaded intotheoven.Thecontrolwillfollowthe
programmed cooking routine changing temperate
and/or fan speeds or fan cycle/continuous at the
programmed intervals. Thus, once the cooking chain
is programmed, the user would benefit from
consistent results when cooking the same batch.
However, not all usage of the oven requires an
automatic cooking routine. In these cases, the oven
can be used in a normal manner where the times and
temperatures are set using the rotary dials. A manual
Cook & Hold is also available for holding a product
after it has been cooked.
The following instructions will assist you in using this
control with your oven, but if you have any questions
you should contact the Duke Service Department on
our toll free support line: 800.735.3853.
Timer Resolution
The Timer displays time in two different scales.
From 0 to 60 minutes, the time is displayed in
Minutes/Seconds (“MN” Mode). From 1 to 12 hours,
the time is displayed in Hours/Minutes (“HR” Mode).
The mode indicators are located in the firs number
digit to the left of the colon.
Power Input Frequency
Thecontrolwilldisplay“CCC”or“FFF”inthe temperature digits
toindicateithasenteredthemode.
Enteringwilltogglebetween“CCC”and“FFF”. Pressing and
holdingtheSTARTTIMEbuttonagainwillalso toggle the setting.
TurnPowerSwitchtoOFFpositiontoexit.
TimeDial
TheTIMEdialsetstimeintervalsforcooking. It is used in either
programmedormanualcooking.
TempDial
TheTEMPdialsetsthetemperature.Thetemperature changes in
5°For1°Cincrements.
StartTimeButton
The START TIME button initiates the cooking cycle whether a
programmed chain or manual time set with the TIME dial used.
Cook HI/LO Fan Button
The COOK HI/LOW FAN button puts the control into a cook mode
and enables the heating elements. Each time the button is pressed,
the control switches between the high or low fan speeds. If neither
fan is enabled, the high fan speed is selected automatically. The HI
FAN and LO FAN indicators show, which fan speed, is selected.
Hold Button
The HOLD button is used to set up the Hold Mode. The user
presses the HOLD button and sets the desired temperature and
continuous or cycled fan. During the Hold setup mode, the HOLD
indicator is lit and the CYCLE indicator is lit if the cycled fan is
selected.
During the cook portion hold mode, the timer counts down to zero.
During the hold portion, the timer counts up from zero.
Fan Con/Cyc Button
The FAN CON/CYC button enables the fan to run continuously
during the cooking cycle, or run only when the control is calling for
heat. The display will show FAN CYC when the cycled fan mode
is selected and FAN CON when the continuous mode is selected.
The CYCLE indicator will light when the cycled fan is enabled.
The controller will automatically set itself to operate
on 50Hz or 60Hz, depending on the power source
used. All timers and internal clocks are automatically
compensated.
Temperature Scale
The controller can be set to display the temperature in
°F or °C. as follows:
• Turn Power Switch to COOK position.
• Set TIME to 00:00 and TEMP so “20” is
displayed in the right two temperature digits.
Press and hold the START TIME button for 5 seconds.
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Program ModeOn/OffButton
ManualCooking
This button allowstheusertoactivatethe
programming mode.Whenthismodeisselected,
normal ovenoperationissuspended.The
programming modeallowstheusertoprogramthe
cook chains. Whenthisbuttonispressedagain,the
program modeisexitedandnormalovenoperationis
resumed. Whentheprogrammingmodeisenteredthe
PGM indicatorsflash.
Event # Button
During the programmedchaincookingoperation,this
button is usedtorecallthetimeremaininginthe
current event. Intheprogrammingmode,thisbutton
is used to sequencetothenexteventtobe
programmed. During manual operation, this button is
disabled.
Program Buttons (1-5)
The five (5) programming buttons are provided for
chained cooking. Programs 1 and 2 provide the user
with 6 events each, and programs 3, 4 and 5 provide 4
events each. The user sets the value programmed for
each event. The Program buttons are locked out when
the control is running a manual timed cook.
1 Event = time, temp, fan speed, fan mode.
Cancel Button
The CANCEL button is provided to clear the timer
and enable the program buttons and rotary dials. It
also cancels the Programming Mode, the beeper, and
turns off any indicators that are no longer needed.
Power Up
On initial power up, the time digits will always
display zeros with a colon. The temperature digits
will display zeros with the degree (°) indicator lit.
The C will also be lit in the display if the Celsius
option is selected. When the control is turned off, the
temperature/timer setting is stored. When the control
is turned on again, it will automatically return to the
last set time and temperature
Anormal,non-programmedcookingcyclecan be initiated as
follows:
•TurnPowerSwitchtoCOOKposition.
•SetthedesiredtimeusingtheTIMEdial.
•SetthedesiredtemperatureusingtheTEMP dial.
•SelectthedesiredfanspeedusingtheCOOK HI/LO FAN
button.
•Selectthefantobeoncontinuously or cycled using the
FAN/CON/CYCbutton.
•SettheHOLDtemperature,ifdesired.
•PresstheSTARTTIMEbuttontostartthe cooking cycle.
•PressingtheCANCELbuttonwill“zero” the Timer at any
time.
Programmed Chain Cooking
With the control in normal operating mode, press the desired chain
(PBM 1-5) button. If the selected chain has been programmed, the
first event will be loaded. The timer will not start until the START
TIME button is pressed. The oven temperature will be controlled to
the temperature programmed to the first event.
Chain Programming
Each of the 5 PGM buttons can be programmed to perform a
different sequence or “chain” of events. Each event, or step,
includes a setting for the time, temperature, fan speed, and fan
mode. PGM 1 and PGM 2 allow the user to set up to 6 events to
be performed during the cooking cycle, while PGM 3,
PGM 4 and PGM 5 allow up to 4 events. The last event for any
of the Programmed Chains can be set to be a Hold mode.
Programming the PGM buttons is performed as follows:
• Turn Power Switch to COOK position.
• Press the PGM MOD ON/OFF button to enter the
programming mode. All PGM indicators will flash and
the balance of the display will be blanked.
•At this time, one of the PGM Button’s (1-5) must be
pressed to select which chain is to be programmed. When
the desired PGM button is pressed, the appropriate PGM
indicator will remain flashing and event 1 time and
temperature will be displayed. The event number (E1-E6)
will be displayed alternately with the temperature digits.
Cool Down
This feature enables the oven to be cooled rapidly by
allowing the fan to operate with the heating elements
turned off. To activate, turn the Power Switch to the
COOL position and open the oven door. Then the
door is opened enough to disengage the door switch,
the fan will turn on. Closing the door will turn the fan
off.
14 of 52
• To changetheeventtime,turntheTIME
dial. Thetimeenteredwillbedisplayedin
the timedigits.
• To changeeventtemperature,turnthe
TEMPdialforthedesiredsettemperature.
The temperatureenteredwillbedisplayedin
the temperaturedigits.Theeventnumber
displaywillnotbeshownwhiletheTEMP
dial isbeingrotated.
• To changethefanspeed,presstheCOOK
HI/LOFANbutton.Thedisplayindicators
will showtheselectedcookmode.
• PresstheFANCON/CYCbuttontoselect
continuousorcycledfan.Thedisplaywill
showFANCONorFANCYCtoindicate
whichmodeisselected.TheCYCLE
indicator will light if the cycled fan is
enabled.
• To set up a hold mode, press the HOLD
button. The HOLD indicator will be lit
when this mode has been selected.
When an event is programmed as a Hold,
that event will be the last recognized event
of the chain. As an example, if Event 3 is
set up as a Hold and Event 4 was set up as
a Cook, Event 4 would be ignored.
• To exit the Programming mode, press the
PGM ON/OFF or CANCEL button. The
programmed parameters of the previously
programmed chain will be saved at this time.
•To program another event within the same
chain, press the EVENT # button. The
parameters of the previous event are saved at
this time and sequential event will be
displayed. If the previous event was the last
of the chain, the first event will be displayed.
•To program another chain, press the desired
PGM BUTTON (1-5). Event 1 of the
selected chain will be displayed and the
parameters of the previously programmed
chain will be saved at this time.
EXAMPLE:MUFFINS
Event1
cooktime=4minutes
Cycled,lowfanallowsthemuffinstorise and skin over
withoutbeingdistortedbytheairmovement.