Installation and
Operation Manual
5/9 ELECTRIC HALF-SIZE
CONVECTION OVEN
Please read this manual completely before attempting to install, operate or service this equipment
This manual is Copyright © 2017 Duke Manufacturing Co. All rights reserved. Reproduction without written permission is prohibited. Duke is a registered
trademark of the Duke Manufacturing Co.
Duke Manufacturing Co.
2305 N. Broadway
St. Louis, MO 63102
Phone: 314-231-1130
Toll Free: 1-800-735-3853
Fax: 314-231-5074 www.dukemfg.com
P/N: 155131
REV Z 12/07/2017
Installation and Operation of 5/9 Electric Convection Oven |
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TABLE OF CONTENTS |
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SPECIFICATIONS........................................................................................................................... |
3 |
INSTALLATION INSTRUCTIONS.................................................................................................... |
4 |
A. QUALIFIED PERSONNEL................................................................................................. |
4 |
B. DELIVERY AND INSPECTION.......................................................................................... |
4 |
C. LOCATION OF THE OVEN................................................................................................ |
4 |
D. ELECTRICAL CONNECTIONS......................................................................................... |
4 |
E. OVEN ASSEMBLY.............................................................................................................. |
5 |
Leg Attachment................................................................................................................. |
5 |
Caster Installation............................................................................................................. |
5 |
Double Sections................................................................................................................ |
5 |
F. ADJUSTMENTS ASSOCIATED WITH INSTALLATION................................................... |
5 |
OPERATING INSTRUCTIONS........................................................................................................ |
6 |
THE 5/9 SERIES OF CONVECTION OVENS....................................................................... |
6 |
A. OVEN CONTROLS............................................................................................................. |
7 |
Electro-Mechanical........................................................................................................... |
7 |
“V” Controller Operating Instructions................................................................................ |
7 |
Cooking...................................................................................................................... |
8 |
“XX” Controller ................................................................................................................. |
9 |
“XX” Controller Programming & Operating Instructions............................................. |
9 |
“ZZ” Controller................................................................................................................. |
11 |
“ZZ” Controller Programming & Operating Instructions........................................... |
11 |
B. GENERAL GUIDELINES FOR OPERATION..................................................................... |
15 |
C. Suggested Times & Temperatures..................................................................................... |
16 |
D. COOK & HOLD/ROAST & HOLD RECOMMENDED TIME & TEMPERATURE................ |
17 |
COOK & HOLD - ROAST & HOLD................................................................................. |
17 |
E. General Guidelines for Cook & Hold - Roast & Hold.......................................................... |
18 |
MAINTENANCE INSTRUCTIONS................................................................................................. |
19 |
A. ADJUSTMENTS................................................................................................................ |
19 |
B. DOOR SWITCH ADJUSTMENT...................................................................................... |
19 |
C. THERMOSTAT CALIBRATION........................................................................................ |
19 |
Electro-Mechanical Controls "V". Not applicable to Ovens with Solid State Controls..... |
19 |
To Check Calibration:...................................................................................................... |
19 |
To Calibrate the Ovens................................................................................................... |
20 |
D. CLEANING OF THE OVENS........................................................................................... |
20 |
5/9 – ELECTRIC CONVECTION OVEN REPAIR PARTS LIST......................................... |
21 |
DOOR ASSEMBLY................................................................................................................ |
22 |
“V” CONTROLLER ASSEMBLY........................................................................................... |
23 |
“XX” CONTROLLER ASSEMBLY......................................................................................... |
24 |
“ZZ” CONTROLLER ASSEMBLY......................................................................................... |
25 |
CONTACTOR IDENTIFICATION ........................................................................................ |
26 |
FLUE GUARD........................................................................................................................ |
27 |
DOUBLE STACK OVENS..................................................................................................... |
27 |
"V" CONTROLLER WIRING SCHEMATIC.......................................................................... |
28 |
"XX" CONTROLLER WIRING SCHEMATIC....................................................................... |
29 |
"ZZ" CONTROLLER WIRING SCHEMATIC........................................................................ |
30 |
CUSTOMER ASSISTANCE.................................................................................................. |
31 |
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Installation and Operation of 5/9 Electric Convection Oven
IMPORTANT WARNING AND SAFETY INFORMATION
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FOR YOUR SAFETY: |
Do |
not |
store |
or |
use gasoline or other flammable vapors or liquids |
in |
the |
vicinity |
of |
this or any other appliance. |
: 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.
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE.
SPECIFICATIONS
TOTAL KW |
VOLTAGE |
AMPS-1 PHASE |
AMPS-3 PHASE |
8.0 KW |
208 |
41 |
24 |
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8.0 KW |
240 |
36 |
21 |
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POWER SUPPLY CONNECTIONS
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Installation and Operation of 5/9 Electric Convection Oven
INSTALLATION INSTRUCTIONS
A. QUALIFIED PERSONNEL
Theseinstallationinstructionsarefortheuseofqualified installation and service personnel only. Installation or service by other than qualified personnel may result in damage to the oven and/or injury to the operator.
Qualified installation personnel are those individuals, firms,companiesorcorporationswhicheitherinperson or through an agent is engaged in and responsible for:
•The installation of electrical wiring from the electric meter, main control box or service outlet to the electricalappliance.Qualifiedinstallationpersonnel must be familiar with all precautions required and have complied with all requirements of state and local authorities having jurisdiction. See: National
Electrical Code, ANSI/NFPA70.
B.DELIVERY AND INSPECTION
DukeManufacturingCo.doeseverythingwithinitspower to insure you received your oven in good condition. They are strapped down on heavy wooden skids and surroundedbyheavy“tri-wall”cartonstopreventshipping 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.
•Uncrateandcheckforanydamage,whichwasnot 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 from drafts and accessible for proper operation and servicing.
•The area around the oven must be kept clear of combustible materials. Refer to the Oven Placement Clearances Chart before installing the oven.
OVEN PLACEMENT CLEARANCES CHART
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COMBUSTIBLE |
NON-COMBUSTIBLE |
Right Side |
1" |
0" |
Left Side |
1" |
0" |
Rear |
3" |
3" |
Floor |
8" |
8" |
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 blowermotorhasathermalprotectiondevice,whichwill 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 tempteratures at the rear of the oven. High temperaturescancauseprematureblowermotorfailure.
Before making any connections to the oven, check the specification plate to be sure the oven specifications concur with the voltage and phase to be supplied to the oven.
Thespecificationplateislocatedbehindthelowerfront panel.Toaccessthespecificationplate,loosenthefour screws below the doors, and pull the panel outward.
Thespecificationplatebearingtheoven’sserialnumber is attached to the underside of the upper ledge above the control panel.
D. ELECTRICAL CONNECTIONS
The oven is supplied for connection to a 208 or 240 volt groundedcircuit.Theelectricmotor,indicatorlightsand control circuits are connected internally and require no secondary power supply.
Before making any connections to these units, check the specification plate to assure that the voltage and
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Installation and Operation of 5/9 Electric Convection Oven
phase of the oven is compatible with the electrical supply. When installing, all ovens must be electrically grounded in accordance with local codes or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70 (in Canada – CSA Std. C22.1).
Wiring diagrams are located in the control compartment area. Standard wiring schematics are also included at the back of this manual.
The proper method of connecting the power source to the terminal block is shown on page 3.
Note to Electrical Inspector: Inspection of electrical connection should be accomplished by the removal of the Control Panel. This is done by loosening the three screws located at the bottom of the door opening and remove lower trim piece. Then remove the screw at the top of the control panel and then the control panel will hinge forward.
E. OVEN ASSEMBLY
Beforeassemblingandinstallingtheoven,pleasecheck to make sure that all necessary parts are present. In addition to the oven itself, there will also be four legs, four feet or four casters, the vent guard, (for double sections:retainingclips&ventriser)andmiscellaneous hardware. Please check the interior of all oven sections forthepartsneededtoassembleandinstalltheoven(s).
Leg Attachment
•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 threaded hole in the front corner of the bottom of the oven. Carefully start the bolt in the corner (avoid cross threading).
•Align the other two leg plate holes in the leg with those in the oven bottom and secure each leg using the remaining two leg bolts. Repeat this process for all legs.
•Raise the oven up on the legs.
•Add the two (2) storage shelves between the four
(4) legs and secure with the bolts provided.
•Level the oven by turning the adjustable feet in or out as needed.
Caster Installation
•Casters are available as an option for both the
single and double oven sections.
•The installation of casters requires the removal of the adjustable feet from the legs. This is done by placing the bit of a large screwdriver against the lip of the foot and rapping the screwdriver to drive the foot out of the leg. The caster is then inserted fully into the opening where the foot came out and the locking nut tightened to expand the compression sleeve of the caster.
NOTE: The casters with locking brakes are best mounted on the front side of the oven for easier access.
NOTE: If you plan to use casters, a fixed restraint of the properlengthmustbeincorporatedtosecuretheovento a non-movable surface to eliminate strain on the power cord. If the oven is removed from its normal position, the restraint must then be reattached when returned.
Double Sections
•Secure the short legs to the bottom of the lower section as described in previous section.
•Casters are installed by the method described for single section ovens in the previous section.
•Place the oven in the upright position and mount the top oven and secure to lower oven as shown on page 27.
•Install flue guard (if required) as shown on page
27.
F.ADJUSTMENTS ASSOCIATED WITH INSTALLATION
Each oven section and all its component parts have been tested thoroughly and inspected before the oven wasshippedfromthefactory.However,itissometimes 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 arenotconsidereddefects,ratheranormalandroutine 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.
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Installation and Operation of 5/9 Electric Convection Oven
No installation should be considered complete without proper inspection and, if necessary, any adjustments by qualified service or installation personnel.
OPERATION INSTRUCTIONS
The information in this section is intended for the use of qualified operating personnel. Qualified Operating
Personnel are those individuals who have carefully read the information contained in this manual, are familiar with the function of the oven and/or have had experience with operating the equipment described.
We recommend following these instructions to insure optimumperformance,longlifeandtrouble-freeservice from your oven.
The 5/9 Electric Convection Ovens
Convectioncookinghasbeenaroundfromthe1960s.Its advantages are well known. It differs from conventional
cooking by the movement of heated air within the cooking cavity by means of a fan. This moving, heated air helps to strip the cool air from around the product being cooked, allowing the heat to penetrate more rapidly. The results are that your product is cooked quicker and at a lower temperature with the comparable product quality found in conventional ovens.
Please take the time to carefully read the operating instructions. They are important in the successful use of your oven.
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Installation and Operation of 5/9 Electric Convection Oven
A. OVEN CONTROLS "V" CONTROLLER
1 Electro-Mechanical
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1.The Power Switch - Controls power to ON or Cool Down Function.
2.The Indicator Light - When lit indicates burners are operating. When the light goes out, the oven has reached its cooking temperature.
3.The Cooking Thermostat - Controls the oven temperature.
4.The Cooking Timer - Sounds an electric buzzer on expiration of operator set time as a reminder to remove product at end of cooking cycle.
NOTE: To set times of less than 25 minutes, turn timer knob past 25 minutes and then back to the desired time.
5.The Fuse Holders - Contain circuit protecting fuses.
6.The Fan Speed Switch (Optional)-Setsfanspeed to high or low.
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Installation and Operation of 5/9 Electric Convection Oven
“V” Controller Operating Instructions
Timer Resolution
The Timer displays time from 0 to 60 minutes, in oneminute increments.
Temperature Scale
The Temperature Control displays the temperature in
°F. The temperature range is from 150°F - 500°F, in
25°F increments.
Cool Down
This feature enables the oven to be cooled rapidly by allowing the fan to operate with the burners turned off.
Toactivate,turnthePowerSwitchtotheCOOLposition 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.
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.
NOTE: To set times of less than 25 minutes, turn timer knob past 25 minutes and then back to the desired time.
During the Cook Cycle, the OVEN READY Indicator light will cycle on and off with the heating elements.
•WhentheCOOKTIMERreaches“zero”,thealarm will sound.
•To cancel the alarm, turn the COOK TIMER dial to the OFF position.
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Installation and Operation of 5/9 Electric Convection Oven
“XX” CONTROLLER
Oven Controls – Solid State Digital
1.The Power Switch – Controls power to Cook or Cool Down functions.
2.The Indicator Light – When lit indicates burners orelementsareoperating.Whenthelightgoesout, the oven has reached the desired temperature.
3.TheTimeDigitalDisplay–Displaystimeremaining in the chosen cycle.
4.The Time Adjustment Buttons – Sets/Adjusts countdown timer for cook cycle.
5.The Temperature Adjustment Buttons – Sets/ Adjusts cooking temperature.
6.The Temperature Digital Display – Displays the temperature inside the oven
7.The Pulse Fan Button – Enables/Disables the Pulse Fan Cycle.
8.The Start/Stop Button – Starts/Stops the cooking cycle.
9.The Hold Button – Enable/Disables the Hold Function.
10.TheFanSpeedSwitch (Optional)–Setsfanspeed to high or low.
11.The Fuse Holders – Contains circuit Protecting fuses.
“XX” Controller
Programming & Operating Instructions
Models with the XX controller enable the oven to cook food at a specified temperature for a specified time period, than enter an optional hold mode. The hold mode holds food at a specified temperature for a specified period of time.
When the power switch is in the ON position the oven will be in one of two modes:
•Cook Mode: In this mode the oven operates at a specifiedtemperatureandthefanrunscontinuously, unless the cycle option is selected. In cycle mode the fan runs for 30 seconds and is off for 30 seconds.
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Installation and Operation of 5/9 Electric Convection Oven
This cycle continues during the specified cook time.
•Hold Mode: In this mode the oven operates at a specified hold temperature; however the fan only runs when the burners are on. If the fan mode switch is in the COOL position the fan will run continuously in the Hold mode.
To Program Cook Mode do the following:
1.Turn the power switch ON. The power switch is located at the top of the Control Panel.
2.Set the desired cook temperature (150° to 500°F). Usethearrowkeyslocatednexttothetemperature display. Up raises the temperature, down lowers the temperature.
3.Set the Fan Mode Switch to the Cook position. In the Cook position the fan will not run when the doors are open. If the Fan Mode Switch is set in the COOL position the fan WILL run when the doors are open.
4.If pulse fan cycling is desired press the FAN button. In this mode the fan runs for 30 seconds and is off for 30 seconds. The fan indicator light will blink when the fan is in cycle mode. It stays on steady when the fan is in continuous run mode.
5.Select the correct fan speed for the item being cooked. The Fan Speed switch has two speeds, HI, or LOW.
6.Set the desired cook time by using the up and down arrows next to the cook time display. Up increases time, down decreases time.
7.If the Hold Mode is going to be used for the product being cooked, press the HOLD button.
The temperature display now displays the Hold temperature. Use the up and down arrows to set
the desired holding temperature.
8.Wait until the temperature display stops flashing, when it stops flashing the oven has reached the set temperature. The oven also beeps once to alert the user that it is ready.
9.Place product to be cooked into the oven and press the START/STOP button. The time display begins counting down the remaining cook time. If the oven doors are opened during the cook cycle, the timer will pause, the fan will shut off and the burners will shut off. Cook cycle will resume when the doors are closed.
For ovens equipped with an interior light, the light may be turned on by pressing and holding the LIGHTS button at the bottom of the Control Panel.
The cook time, oven temperature and fan cycle mode can be changed during the cook cycle as needed. To cancel a cook cycle, press the
START/STOP button.
10.If the HOLD mode is NOT enabled the oven begins beeping and the display will flash “00” indicating the cook cycle is complete. Press the START/ STOP button to silence the alarm and immediately remove the product from the oven. If the oven doors are shut the oven will maintain the set cook temperature even though the timer has rune out.To cooldowntheproduct,openthedoors,withtheFan
Mode to COOL and change the FAN SPEED to HI. If the HOLD mode IS enabled the oven will beep three times when the cool time has completed. The timer will begin an upward count, indicating how longtheproducthasbeenholding.Thetemperature display now displays the holding temperature. The oven will remain in HOLD mode until the START/ STOP button is pressed. Pressing the START/ STOP button returns the oven to the COOK mode.
11.When cooking is completed press the Power ON/ OFF button to turn the oven off.
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