Duke AHPO-6-18G Parts List

PROOFER OVEN

1(314) 231

1130

AHPO-6/18 GOLD

For information or technical assistance, call:

1(800) 735-DUKE (3853)

TOLL FREE

PN 156081R

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DUKE PROOFER OVEN

EQUIPMENT MANUAL

TABLE OF CONTENTS

MANUFACTURER’S INTRODUCTION ....................................................................3

INSTALLATION .............................................................................................................4

OVEN START-UP INSTRUCTIONS............................................................................5

PHASE CHANGE WIRE DIAGRAMS ........................................................................6

DOOR ADJUSTMENTS & GASKET MAINTENANCE...........................................7

REVERSING OVEN DOOR SWING DIRECTION ...............................................................................................7

PROOFER DRIP CHANNEL REVERSAL...........................................................................................................9

DOOR GASKET LEAK ADJUSTMENTS..........................................................................................................10

GASKET REPLACEMENT ................................................................................................................................11

OPERATING INSTRUCTIONS..................................................................................12

PROOFER OPERATION ...................................................................................................................................12

OVEN OPERATION ...........................................................................................................................................14

OVEN AND PROOFER TEMPERATURE CHECK ...........................................................................................15

OVEN AND PROOFER TROUBLESHOOTING .....................................................16

CLEANING AND MAINTENANCE...........................................................................18

ELECTRICAL SCHEMATICS ...................................................................................19

REPLACEMENT PARTS ............................................................................................21

REVISED: October 17, 2005

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DUKE PROOFER OVEN

Manufacturer’s Introduction

The Duke AHPO-6/18 Proofer Oven was developed in response to Subway’s need for uniform baking capabilities to provide consistently high, “just baked” bread quality as part of Subway’s Gold Standard Program.

The Duke Proofer Oven utilizes Duke’s unique directional convection airflow technology that provides even heat distribution and a uniform bake without the need for turning pans during the bake cycle. This enhances the quality and consistency of the baked products while reducing food scrap/waste and simplifying operating procedures.

The low profile oven won’t block the view of menu boards and will easily roll through a standard height door. The oven and proofer doors are field reversible with a drip channel on the proofer door to prevent water from dripping on the floor.

Full width doors on the oven and proofer help to display and merchandise fresh baked bread to the customer.

The controls are simple to operate, there are two timers for independent timing of the proofer and oven.

The full width oven and proofer cavity will accept standard ½ size or full size sheet pans.

EQUIPMENT MANUAL

Supplier Name: Duke Manufacturing Co. Address: 2305 North Broadway

St. Louis, MO 63102

Model #: Serial #: __________________ Date Received: __________________ Date Installed: __________________ Toll Free Telephone: 1-800-735-3853 Fax: 1-314-231-5074 Service Referral #: __________________ Local Service Name: __________________ _____________________________________ Local Service #: __________________

General Specifications

Model #: AHPO-6/18

Overall Dimensions Height: 77 3/4 in./197.5cm Width: 37 1/4 in./94.6cm Depth: 27 1/4 in./69.2cm

ELECTRICAL SPECIFICATIONS

208 V

1 PHASE 32.0 27.8 6650 3 PHASE 18.5 16.0 6650

Shipping Weight: 550lbs / 250kg

Installation Requirements Power Connection: 1 PHASE: 8 AWG COPPER WIRE 3 PHASE: 10 AWG COPPER WIRE NO ALUMINUM WIRING ALLOWED

AHPO-6/18

AMPS

240 V

AMPS

TOTAL

WATTS

!CAUTION!

All electrical connections must be in compliance with the National Electric Code, ANSI/NFPA 70-current edition or in Canada,

CSA std. C22.1. and local code requirements.

The circuit must be properly grounded

according to the codes.

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DUKE PROOFER OVEN

EQUIPMENT MANUAL

INSTALLATION

Inspect the exterior of the shipping container carefully and note any damage on the delivery receipt. Remove the shipping container and check for damage to the oven. If there is any damage file a freight claim with the carrier and call Duke at 800-735-3853.

Compare the voltage and phase from the oven specification label to the power supply for the oven and call Duke if there is a difference. If the phase is wrong, a qualified service technician can change the wire connections inside the oven to correct the problem. See the illustration on page 4 for phase conversions. If the voltage is wrong, the heat elements must be changed. Call Duke to get new elements.

WARNING Risk of Electric Shock

This appliance must be secured to building structure. A restraining device kit (#153586) was provided with the unit to limit the movement of the appliance without depending on or transmitting stress to the electrical conduit. Installation instruction is in the kit.

This Restraining Device MUST always be connected when the Appliance is in Service. Disconnect for movement, servicing and or cleaning, then reconnect when the appliance has been returned to its normal position.

The appliance shall be installed using flexible conduit.

Check the swing of the door. The hinge side can be changed by following the instructions on page 8. The door swing direction can be changed in the field after you have a new drip channel for the proofer door. Call Duke to get the new drip channel for the proofer door.

Put the wire racks in the oven and proofer.

Important: A minimum clearance of 6” from the top of unit to the ceiling must be provided.

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EQUIPMENT MANUAL

OVEN START-UP

Have a qualified service technician or electrician connect the oven to the power supply. Check the door seal and make sure both doors close completely. If they do not close and seal properly, call Duke for assistance.

The light bulb covers can be removed by turning them counter -clockwise. Make sure the gasket is in place when replacing the covers. If you replace the light bulbs, make sure they are the correct voltage and a maximum rating of 40 watts. Contact Duke Manufacturing Service for long life replacement bulbs.

• Fill the proofer water pan about half full of clean water.

• Turn the oven and proofer power switches to the ON position.

• Set the oven thermostat at 350° F, the proofer thermostat at 105° F, and the proofer

humidity at #3.

• All of the indicator lights should be on.

• Check to make sure that the oven and proofer fans are turning and the lights are on.

• Open the oven door. The oven fan should stop. Close the door to continue.

• Set both timers to 20 minutes and check to make sure they time down and the buzzers

work.

NOTE: When using timer for less than 10 minutes, you must turn the timer knob past 10 and then set time.

If there are any problems, call the service department at Duke for assistance before you call a service agency. If the problem is an operator or procedural error you will be liable for the service charges.

Allow the oven and proofer to pre-heat for at least 30 minutes.

Your Duke Proofer Oven is now ready to operate.

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CONTACT

DUKE PROOFER OVEN

Phase Change Wire Diagrams

EQUIPMENT MANUAL

1 PHASE

T1 L1

T2 L2

3 PHASE

T1 L1

T2 L2

T3 L3

!! DANGER !!

A qualified service technician must complete this procedure. Access to electrical

parts is hazardous and could cause serious injury or death.

1. Disconnect the oven from the power supply.

2. Remove the access panel on the right side below the oven.

3. Locate the contactor on the rear control compartment surface.

4. Change the location of the heat element wires on the contactor to match the appropriate

diagram above.

5. Replace the access panel and connect the power supply.

6. Check the oven and proofer for proper heating, current draw, and voltage.

REVISED: October 17, 2005

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Hinge Cover and

DUKE PROOFER OVEN

EQUIPMENT MANUAL

Door Adjustments & Gasket Maintenance

Reversing Oven Door Swing Direction

NOTE

If you reverse the Proofer door you must have the reverse drip channel for the

bottom of the door. Call Duke at 800-735-3853 to order the drip channel before you

reverse the door swing.

1. Remove cover from hinges to expose the screws that hold the hinge to the front of the oven.

2. Remove the hinge screws and door from the oven.

3. Remove the door handle screws and flip the door handle over and replace it on the door.

4. Remove the six screws on the front of the oven to expose the hinge screw holes for the other swing direction.

5. Use the six screws to fill the unused hinge screw holes on the front of the oven.

6. Remove the latch strike plate from the front of the oven and move it to the other side. Use the screws from the other side to fill the screw holes that are no longer used.

7. Position the door on the front of the oven and tighten the hinge screws. Make sure the door is level with the oven body before the screws are tightened permanently.

8. Adjust the door gasket seal. See page 7 for instructions

Door Handle Screws

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DUKE PROOFER OVEN

EQUIPMENT MANUAL

Door Adjustments & Gasket Maintenance

Proofer Drip Channel Reversal

The proofer door has a sloped drip channel on the bottom that directs any water that drips down the door into the water pan below the door. When the door swing is reversed this drip channel must be replaced with a new channel that has the slope in the proper direction. Contact Duke Manufacturing Service for a new drip channel before changing door swing direction.

1. Follow the directions for removing the door on the last page. When the door is off you can then replace the drip channel.

2. Remove the screws that hold the drip channel on and remove the drip channel. Use the same screws to fill the empty holes after the drip channel is off.

3. Locate the new drip channel on the other end of the door. Make sure that the slope is directed to the hinge side of the door.

4. Fasten the drip channel to the door with the self tapping screws provided with the new drip channel.

5. Follow the directions for mounting the door on page 5.

REVISED: October 17, 2005

Left Hinge Drip Channel

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Right Hinge Drip Channel

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