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
or
PN 156081R
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RESTAURANT
1-314-231-1130
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.
REVISED:
October 17, 2005
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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.
REVISED:
October 17, 2005
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DUKE PROOFER OVEN
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.
REVISED:
October 17, 2005
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CONTACT
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9
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CONTACT
8
9
11
DUKE PROOFER OVEN
Phase Change Wire Diagrams
EQUIPMENT
MANUAL
1 PHASE
T1 L1
T2 L2
10
3 PHASE
T1 L1
T2 L2
T3 L3
10
!! 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
REVISED:
October 17, 2005
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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
DUKE PROOFER OVEN
DUKE MANUFACTURING CO.
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