Hobart HM1200 User Manual

MODEL HM1200

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HM1200

MICROWAVE OVEN

MICROWAVE OVEN

ML-126824

701 S. RIDGE AVENUE

TROY, OHIO 45374-0001

937 332-3000

www.hobartcorp.com

FORM 34726 (Nov. 2001)

IMPORTANT SAFETY INSTRUCTIONS

When using electrical appliances, basic safety precautions must be followed, including the following:

WARNING: TO REDUCE THE RISK OF BURNS, ELECTRIC SHOCK, FIRE, INJURY TO PERSONS
OR EXPOSURE TO EXCESSIVE MICROWAVE ENERGY:

1. Do not use metal utensils in this oven. No aluminum foil or aluminum pie pans. No metallic
decorations on dishware. No lead crystal glassware.

2. Read all instructions before using oven.

3. Read and follow PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE
MICROWAVE ENERGY on the next page.

4. This microwave oven must be grounded. Connect only to a properly grounded outlet. Refer to
ELECTRICAL CONNECTION and GROUNDING INSTRUCTIONS (page 6).

5. Locate or install this oven only in accordance with the instructions provided.

6. Some items, such as whole eggs or sealed containers, may explode and should not be heated in
this oven. Example: Closed glass jars.

7. Use this microwave oven only for its intended use as described in this manual. Do not use
corrosive chemicals or vapors in this oven. This type of oven is specifically designed to heat, cook
or dry food. It is not designed for industrial or lab use.

8. As with any appliance, close supervision is necessary when used by children.

9. Do not operate this microwave oven if it has a damaged cord or plug, if it is not working properly
or if it has been damaged or dropped.

10. This microwave oven should be serviced only by qualified service personnel. Contact your local
Hobart Service Office for examination, repair or adjustment.

11. Do not cover or block any openings on the microwave oven.

12. Do not use this oven outdoors. Do not use this product near water — for example, near a kitchen
sink, in a wet basement, or near a swimming pool, etc.

13. Do not immerse cord or plug in water.

14. Keep cord away from heated surfaces.

15. Do not let cord hang over edge of table or counter.

16. When cleaning surfaces of the door and oven that come in contact when the door is closed, use
only mild, non-abrasive soap or detergent applied with a sponge or soft cloth. Refer to CLEANING
(page 15).

17. To reduce the risk of fire in the oven cavity:

(a) Do not overcook food. Carefully attend the oven if paper, plastic or other combustible materials

are placed inside the oven to facilitate cooking.
(b) Remove wire twist-ties from paper or plastic bags before placing bag in oven.
(c) If materials inside the oven should 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 purposes. Do not leave paper products, cooking utensils or

food in the cavity when not in use.

© HOBART CORPORATION, 2001

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PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

1. 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.

2. Do not place any object between the oven front face and the door or allow soil or cleaner residue

to accumulate on sealing surfaces.

3. 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:
(a) Door (bent),
(b) Hinges and latches (broken or loosened) or
(c) Door seals and sealing surfaces.

4. The oven should not be adjusted or repaired by anyone except properly qualified service

personnel.

CAUTIONS

1. Do NOT attempt to tamper with or make any adjustments or repairs to door, control panel

housing, safety interlock switch or any other part of the oven. Do NOT remove outer panel from
oven. Repairs should only be done by a qualified service person.

2. Do NOT operate the oven when it is empty. The microwave energy will reflect continuously

throughout the oven if no food or water is present to absorb energy.

3. If a fire occurs in the oven, touch the STOP/RESET key and LEAVE THE DOOR CLOSED.

Disconnect the power cord, or shut off power at the fuse or circuit breaker panel.

4. Do NOT attempt to dry clothes, newspapers or other materials in the oven. They may catch fire.

5. Do NOT use recycled paper products, as they may contain impurities which may cause sparks

and/or fires.

6. Do NOT use newspapers or paper bags for cooking.

7. Do NOT hit or strike control panel. Damage to controls may occur.

8. Pot holders may be needed when removing food from the oven. Heat is transferred from the hot

food to the container.

9. Do NOT store flammable materials next to, on top of or in the oven. It could be a fire hazard.

10. Do NOT operate the oven without the splatter shields (located in the top of the inner cavity) in

place.

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Installation, Operation and Care of

MODEL HM1200 MICROWAVE OVEN

SAVE THESE INSTRUCTIONS

GENERAL

Microwave heat is generated inside the food rather than being conducted through the food as in
conventional methods. Time is used to control the amount of heating that occurs.

Microwave energy is absorbed in proportion to the moisture content of the food. The microwave energy
causes water molecules to vibrate at high speeds, resulting in friction (HEAT).

The Model HM1200 produces microwave energy in a magnetron where an electric current is changed
to microwave energy by large magnets. From the magnetron, microwave energy is transmitted to the
oven cavity where it is reflected, transmitted or absorbed.

Microwaves are reflected by metal (on interior walls and the rotating waveguide located underneath the
ceramic tray). This assures that the microwaves are well distributed within the oven cavity and
produces even heating or cooking of foods.

Microwaves pass through paper, glass and plastic much like sunlight shining through a window.
Because these substances do not absorb or reflect the microwave energy, they make ideal food
containers for microwave cooking.

3

Microwaves penetrate the food to a depth of about
especially water, fat and sugar. The excited molecules vibrate at a rate of 2.45 billion cycles per second
which causes friction and produces heat. The internal heating of larger food volumes is done by
conduction. The microwave heat produced in the outer 1
food. Food continues to heat by conduction after microwave production has stopped. Microwaves
dissipate and cannot be stored in food.

RADIO INTERFERENCE

There is a possibility of a small amount of interference with weak broadcast signals if the microwave
oven is too close to a radio or TV or similar equipment. If interference is present, it may be reduced
by: 1) Cleaning the door and sealing surface of the oven, 2) Increasing the separation of the oven from
the receiving device or 3) Using an antenna to obtain stronger signal reception for the receiving device.

/4 to 11/2 inches where they excite molecules –

1

/2 inches is conducted to the center of the

INSTALLATION

UNPACKING

Immediately after unpacking the microwave oven, check it for possible shipping damage. If this oven
is found to be damaged, save the packaging material and contact the carrier within 15 days of delivery.

Before installing the oven, test the electrical service to make sure it agrees with the specifications on
the data plate on the right side of the oven.

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LOCATION

Place the oven on a suitable countertop, shelf or table with a smooth, flat and stable surface. Do not
place the oven in a hot or damp area, near a gas or electric range. The microwave oven must not be
located above or next to sources of excessive heat or greasy air. Clean air must be free to flow around
the oven. There is a possibility of a small amount of interference with weak broadcast signals if the
microwave oven is too close to a radio or TV.

It is recommended that the microwave oven be located so the housing can be removed for service.
NOTE: The housing should NOT be removed by anyone except qualified service personnel. A Hobart
service technician is recommended.

The air filter MUST be in place whenever the microwave oven is being operated.
A protective film is used to prevent scratching of the outer case during transportation. Peel the film from

the exterior of the oven before installation or use.

STACKING TWO OVENS — ONE ON TOP OF THE OTHER

Ignore this section if only installing one oven.
Disconnect electrical power cord before stacking ovens. Use the Joint Plate enclosed with the unit.

The maximum stacking height is the total height of the two units. Be sure the oven cavity is empty. Be
sure surfaces where ovens meet are clean and sanitized.

Stack the two microwave ovens. Remove five screws marked (a) and loosen the screw (b) (Fig. 1).
The projection on the Joint Plate must face away from the oven. Place the middle slot on the Joint Plate
over screw (b). Attach the Joint Plate (Fig. 2): Tighten the five screws (a) and tighten screw (b). Make
sure the upper oven is at a safe and workable height.

(b)

JOINT PLATE

PROJECTION

(a)

Fig. 1 Fig. 2

JOINT PLATE

PROJECTION

SEAL OVEN BASE TO COUNTERTOP

Thoroughly clean the bottom perimeter of the microwave
oven and the countertop area around the perimeter of the
microwave oven. Remove the air filter from the front of the
oven (refer to page 15). Apply a bead of silicone sealant
around the entire perimeter of the microwave oven. Smooth
the silicone seal into the crevice with finger or tool to
provide a cove seal. Re-install the air filter after applying
the silicone sealant. This procedure applies equally to a
single oven or to stacked ovens.

Fig. 3

SILICONE
SEALANT

COUNTERTOP

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