Duke Manufacturing DG1 Operation Manual
DUKE MANUFACTURING CO.
SPEED OVEN
Speed Oven
Model
DG1
Owner’s Manual
IMPORTANT INFORMATION
READ BEFORE USE
PLEASE SAVE THESE INSTRUCTIONS
2305 N. Broadway • St. Louis, MO 63102
800.735.3853 • 314.231.1130 • 314.231.5074 Fax
www.dukemfg.com
Part No. 168464/Rev.E
TABLE OF CONTENTS
Safety Instruction ................................................................. 04
Main Features........................................................................ 06
Installation Instructions ....................................................... 09
Operating Instructions ......................................................... 11
Care and Cleaning ................................................................ 23
Accessories .......................................................................... 24
Troubleshooting ................................................................... 25
Customer Assistance ........................................................... 27
PRECAUTIONS TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE
ENERGY
a)
Do not attempt to operate this oven with the door open since open-door operation can result in
harmful exposure to microwave energy. It is important not to defeat or tamper with the safety
interlocks.
b)
Do not place any object between the oven front face and the door or allow cook residue or
cleaner residue to accumulate on sealing surfaces.
c)
Do not operate the oven if it is damaged. It is particularly important that the oven door close
properly and that there is no damage to the:
(1) Door (bent)
(2) Hinges and latches (broken or loosened)
(3) Door seals and sealing surfaces
d)
The oven should not be adjusted or repaired by anyone except properly qualified service
personnel.
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IMPORTANT SAFETY INSTRUCTIONS
Recognize this symbol as a SAFETY message
14. DO NOT cover or block any openings
Warning
1. READ all instructions before using
equipment.
2. READ AND FOLLOW the specific
PRECAUTIONS TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE
MICROWAVE ENERGY on page 3.
3. This equipment MUST BE
GROUNDED. Connect only to a
properly grounded outlet. See
GROUNDING INSTRUCTIONS on
page 9.
4. Install or locate the equipment ONLY in
accordance with the installation
instructions in this manual.
5. Some products such as whole eggs or
sealed containers – for example, closed
glass jars – are able to explode and
SHOULD NOT be HEATED in this
oven.
6. Use this equipment ONLY for its
intended use as described in this
manual. Do not use corrosive
chemicals or vapors in this equipment.
This type of oven is specifically
designed to heat or cook. It is not
designed for industrial or laboratory use.
7. As with any equipment, CLOSE
SUPERVISION is necessary when used
by children.
8. See door-cleaning instructions in Care
and cleaning section of manual.
9. DO NOT place foreign objects between
oven door and front oven face.
10. DO NOT heat baby bottles in oven.
11. Baby food jars shall be open when
heated and contents stirred or shaken
before consumption, in order to avoid
burns.
12. DO NOT operate this equipment if it has
a damaged cord or plug, if it is not
working properly, or if it has been
damaged or dropped.
13. ONLY qualified service personnel may
service this equipment. Special tools
are required to service this appliance.
Contact nearest authorized service
facility for examination, repair or
adjustment.
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on the oven. Maintain clearances
distances as specified on installation
page.
15. DO NOT place any items directly on
top of the oven.
16. DO NOT store this appliance outdoors.
17. DO NOT use this product near water –
for example, near a kitchen sink, in a
wet basement, near a swimming pool,
or similar locations.
18. DO NOT allow liquid to penetrate
between outer panels of the oven.
19. Do not hose-clean the oven with water.
20. DO NOT immerse cord or plug in water.
21. Keep cord AWAY from HEATED
surfaces.
22. DO NOT let cord hang over edge of
table or counter.
23. This oven is for commercial use only.
24. DO NOT insert oversized foods or
oversized utensils in the oven as they
may create a fire, an electrical arc, or
risk of electrical shock.
25. DO NOT clean with metal scouring
pads.
26. DO NOT use paper products not
intended for cooking.
27. DO NOT store any materials, other than
manufacture’s recommended
accessories in this appliance when not
in use.
28. DO NOT cover racks or any other part
of the oven with metal foil. Interference
with microwave system will damage
components.
29. DO NOT spray oven-cleaning solutions
toward the upper cavity surface. This
will contaminate and damage the
convection heating assembly.
30. DO NOT allow objects to drop on the
door or treat the inside of the door
with heavy objects that may deform
the surface.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To avoid risk of fire in the oven cavity:
a. DO NOT overcook food. DO NOT place paper, plastic,
or other combustible materials inside the oven if these
materials are not intended for cooking by the
manufacturer.
b. Remove wire twist – ties from paper or plastic bags
before placing bag in oven.
WARNING
Liquids such as water, coffee, or tea can be overheated
beyond the boiling point without appearing to be boiling due
to surface tension of the liquid. Visible bubbling or boiling
when the container is removed from the microwave oven is
not always present. THIS COULD RESULT IN VERY HOT
LIQUIDS SUDDENLY BOILING OVER WHEN A SPOON
OR OTHER UTENSIL IS INSERTED INTO THE LIQUID.
To reduce the risk of injury to persons:
i. Do not overheat the liquid.
CAUTION
To avoid risk of personal injury or property damage observe
the following guidelines:
1. Do not deep fat fry in oven. Fat could overheat and be
hazardous to handle.
2. Do not cook or reheat eggs in shell or with an
unbroken yolk. Pressure may build up and erupt.
Pierce yolk with fork or knife before cooking.
3. Pierce skin of potatoes, tomatoes, and similar foods
before cooking with microwave energy. When skin is
pierced, steam escapes evenly.
4. Do not place popcorn bags in this oven as they may
ignite.
5. Do not use regular cooking thermometers in this oven
when cooking in microwave or combination mode. Most
cooking thermometers contain mercury and may cause
an electrical arc, malfunction, or damage to oven.
6. Do not use metal utensils in oven except as
recommended by Duke Manufacturing. Heat food in
containers made of glass or china if possible.
7. When cooking with paper, plastic, or other combustible
materials, follow manufacturer’s recommendations on
product use. Never use unapproved material or items
that are not rated for this oven or not approved by Duke
Manufacturing. When oven temperature is high,
c. If materials inside the oven ignite, keep oven door
CLOSED, turn oven off and disconnect the power cord,
or shut off power at the fuse or circuit breaker panel.
d. DO NOT use the cavity for storage. DO NOT leave
paper products, cooking utensils, or food in the cavity.
ii. Stir the liquid both before and halfway through
heating/cooking.
iii. Do not use straight-sided containers with narrow
necks.
iv. After heating/cooking, take extensive care removing
the container from the cavity.
v. Use extreme care when inserting a spoon or other
utensil into the container.
material may ignite. Oven temperature is set between
minimally 90°C to 260°C (200°F to 500°F) in
convection mode. Verify plastic, paper or other
combustive materials are recommended by the
manufacturer to withstand the maximum oven
temperature.
8. Do not use paper towels, which contain nylon or other
synthetic fibers. Heated synthetics could melt and
contaminate food.
9. Do not heat sealed containers or plastic bags in oven.
Food or liquid could expand quickly and cause
container or bag to break. Pierce or open container or
bag before heating. Plastic can melt/ignite and vapors
may pose a health hazard.
10. Racks, utensils, containers, and oven surfaces may
become very hot during or after use. Use utensils or
protective clothing, like pan grips or dry oven mitts,
when necessary, to avoid burns.
11. Do not unplug oven immediately after use. Internal fan
must cool oven to avoid damage to electrical
components.
12. To avoid pacemaker malfunction, consult physician or
pacemaker manufacture about effects of microwave
energy on pacemaker.
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2
1
3
4
5
6
MAIN FEATURES
1. CONTROL PANEL.
This is the electronic control board that is
programmable for different menus,
temperature settings, fan speeds (Variable
1 to 9) and microwave power. It has some
statistical and service diagnostics.
2. OVEN DOOR and CAVITY
The oven door and cavity are constructed
from stainless steel and must be kept clean
(see Care and Cleaning instructions).
3. CONVECTION AIR
The unit has two blower systems (left and
right) for distributing the air on the product.
The blower system can be operated at
different speeds (10% interval) for higher
efficiency of cooking, browning, etc. The jet
openings must be kept clean and free of
debris (see Care and Cleaning instructions).
4. DOOR
The door is pulled downwards and towards
you to open. The door is designed with
interlocks for microwave safety. The door
should NOT be used to support heavy
dishes. It must be kept clean. (See Care
and Cleaning instructions).
5. DOOR SEALS
The seals prevent the microwave barrier in
the door from accumulating debris. They
should be kept clean and checked regularly
for signs of damage. At the first sign of wear
they should be replaced by Duke approved
Service Agent.
6. AIR INLET
The large air inlet at the top of the cavity is
part of the convection system. It must be
kept free from obstruction. It will not allow
microwave energy to escape into the
environment.
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7
7
9
9
9
9
9
8
MAIN FEATURES
7. COOLING LOUVERS
The louvers prevent electrical components
inside the oven from overheating by
supplying cold air. Although the oven has
only a clearance requirements to the left
adjacent wall with 1.25cm/0.5in, these
louvers should be cleaned from obstructions
between the rib openings and preferably
have access to open air.
8. EXHAUST VENT
The exhaust vent is at the rear of the oven.
This enables steam to escape and prevents
build up of condensation. It will not allow
microwave energy to escape into the
environment.
9. COOLING FANS
Cooling fans are mounted to bring in cool air
from the room into and exhaust hot air from
the machinery compartment. Fans should be
inspected for operation regularly.
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INSTALLATION
Unpacking Oven
• Inspect oven for damage.
• Report any dents or breakage to source of
purchase immediately. Do not attempt to
use oven if damaged.
• Remove all materials from oven interior.
• If oven has been stored in extremely cold
area, wait a few hours before connecting
power.
Radio Interference
Microwave operation may cause interference to
radio, television, or a similar oven. Reduce or
eliminate interference by taking the following
precautions:
• Clean door and sealing surfaces of oven
according to instructions in Care and
Cleaning section.
• Place radio, television, etc. as far as
possible from oven.
• Use a properly installed antenna on radio,
television, etc. to obtain stronger signal
reception.
Oven Placement
• Do not install oven next to or above source
of heat, such as pizza oven or deep fat fryer.
This could cause microwave oven to operate
improperly and could shorten life of electrical
parts.
• Install oven on level countertop surface.
• If provided, place warning label in a
conspicuous place close to microwave oven.
• Outlet should be located so that plug is
accessible when oven is in place.
A. Allow at least 15.2cm/6in of clearance on top.
B. No clearance is required at the back.
C. A clearance of 1.3cm/0.5in is necessary between
side panels and next adjacent walls.
D. A clearance of 7.5cm/3in is required to operate two
ovens side by side or the clearance to an adjacent
similar heat source.
E. Proper airflow around oven cools electrical
components. With restricted airflow, oven may not
operate properly and life of electrical parts is
reduced.
F. Install combination oven so oven bottom is at least
93cm/3ft above floor.
G. When stacking ovens, use ONLY the approved
Duke Manufacturing stacking frame.
Oven Clearances
Line Interference
The switching operation of this microwave oven
can cause voltage fluctuations on the supply
line. The operation of this oven under
unfavorable voltage supply conditions can have
adverse effects. This device is intended for the
connection to a power supply system with
maximum permissible system impedance, Z
max
,
of 1.1 at the interface point of the user’s
supply. The user has to ensure that this device is
connected only to a power supply system, which
fulfills the requirement above. If necessary, the
user can ask the public power supply company
for the system impedance at the interface point.
As the oven has no ON/OFF switch, it must
be connected to a breaker that is conform to
national regulations.
WARNING
To avoid risk of electrical shock or death,
this oven must be grounded and the plug
must not be altered. Improper grounding can
result in the risk of electric shock.
Grounding Instructions
This oven MUST be grounded. Grounding
reduces risk of electric shock
by providing an escape wire
for the electric current if an
electrical short occurs. This
oven is equipped with a cord
having a grounding wire with a grounding plug.
The plug must be plugged into an outlet that is
properly installed and grounded.
Consult a qualified electrician or service agent if
grounding instructions are not completely
understood, or if doubt exists as to whether the
oven is properly grounded.
Do not use an extension cord. If the product
power cord is too short, have a qualified
electrician install a proper outlet. This oven
should be plugged into a separate circuit with the
electrical rating as provided in product
specifications (available on Duke Manufacturing
website). When the combination oven is on a
circuit with other equipment, an increase in
cooking time may be required and fuses can be
blown.
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External Equipotential
Earthing Terminal (export only)
Equipment is equipped with a
secondary earthing terminal.
Terminal provides external earthing
connection used in addition to earthing prong on
plug. Located on the outside of the oven back,
the terminal is marked with this symbol.
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