To aid in reporting this commercial microwave oven in case of loss or theft, please record below
the model number and serial number located on the unit. We also suggest you record all the
information listed and retain for future reference.
MODEL NUMBER ________________________ SERIAL NUMBER ______________
DATE OF PURCHASE ______________________
DEALER ____________________________ TELEPHONE ________________
SERVICER ___________________________ TELEPHONE ________________
TO PHONE:
SERVICE and PARTS
(for your nearest Sharp Authorized Servicer and Parts Distributor)
United States ..................................... 1-800-BE-SHARP(237-4277)
For service problems, warranty information, missing items and other assistance:
Sharp Electronics Corporation
Customer Assistance Center
1300 Naperville Drive
Romeoville, IL 60446-1091
Please provide the following information when you write or call: model number, serial number,
date of purchase, your complete mailing address (including zip code), your daytime telephone
number (including area code) and description of the problem.
TO ACCESS INTERNET:
WWW.sharp-usa.com
CONTENTS
For Customer Assistance ................ Front cover
(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 soil 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.
1
LIMITED WARRANTY
END-USER LIMITED WARRANTY
SHARP ELECTRONICS CORPORATION warrants to the first end-user purchaser that this Sharp brand
product (the "Product"), when shipped in its original container, will be free from defective workmanship
and materials, and agrees that it will, at its option, either repair the defect or replace the defective Product
or part there of with a new or remanufactured equivalent at no charge to the purchaser for parts or labor
for the period(s) set forth below.
This warranty does not apply to any appearance items of the Product nor to the additional excluded item(s)
set forth below nor to any Product the exterior of which has been damaged or defaced, which has been
subjected to improper voltage or other misuse, abnormal service or handling, or which has been altered
or modified in design or construction.
In order to enforce the rights under this limited warranty, the purchaser should follow the steps set forth
below and provide proof of purchase to the servicer.
To the extent permitted by applicable state law, the warranties set forth herein are in lieu of, and exclusive
of, all other warranties, express or implied. Specifically, ALL OTHER WARRANTIES OTHER THAN
THOSE SET FORTH ABOVE ARE EXCLUDED. ALL EXPRESS AND IMPLIED WARRANTIES
INCLUDING THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR USE, AND FITNESS FOR
A PARTICULAR PURPOSE ARE SPECIFICALLY EXCLUDED. If, under applicable state law, implied
warranties may not validly be disclaimed or excluded, the duration of such implied warranties is limited
to the period(s) from the date of purchase set forth below.
Neither the sales personnel of the seller nor any other person is authorized to make any warranties other
than those described herein, or to extend the duration of any warranties beyond the time period described
herein on behalf of Sharp.
The warranties described above shall be the sole and exclusive warranties granted by Sharp and shall
be the sole and exclusive remedy available to the purchaser. Correction of defects, in the manner and for
the period of time described herein, shall constitute complete fulfillment of all liabilities and responsibilities
of Sharp to the purchaser with respect to the Product, and shall constitute full satisfaction of all claims,
whether based on contract, negligence, strict liability or otherwise. In no event shall Sharp be liable, or
in any way responsible, for any damages or defects in the Product which were caused by repairs or
attempted repairs performed by anyone other than an authorized servicer. Nor shall Sharp be liable or in
any way responsible for any incidental or consequential economic or property damage. Some states do
not allow limits on warranties or on remedies for breach in certain transactions; in such states, the limits
herein may not apply.
Your Product Model Number & Description:
R-21HT, R-21HV, R-21JV or R-21JCA
Commercial Microwave Oven
(Be sure to have this information available when you
need
service for your oven.)
Warranty Period for this Product:
Additional Item(s) Excluded from
Warranty Coverage (if any):
Where to Obtain Service:
TO OBTAIN SUPPLY, ACCESSORY OR PRODUCT INFORMATION, CALL 1-800-BE-SHARP.
Save the proof of purchase as it is needed should your oven ever require warranty service.
R-21HT: Three (3) years for parts and labor in the end
user's place of business
R-21HV, R-21JV or R-21JCA: One (1) year for parts and
labor in the end user's place of business. The warranty
continues for an additional two years, for a total of three
years, with respect to the magnetron tube; labor and
service are not provided free of charge for this additional
period.
Non-functional accessories and light bulb.
Contract your Sharp Authorized Servicer to obtain onsite service for this Product. The Servicer will come to
your location and if it is necessary to remove the
Product, the Servicer will reinstall it. Be sure to have
Proof of Purchase available.
2
IMPORTANT SAFETY INSTRUCTIONS
When using electrical appliances basic safety precautions should 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. Read all instructions before using the appliance.
2. Read and follow the specific
“PRECAUTIONS TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY” on page 1.
3. This appliance must be grounded. Connect only to properly grounded outlet.
See
“GROUNDING INSTRUCTIONS” on page 4.
4. Install or locate this appliance only in accordance with the provided installation instructions.
5. Some products such as whole eggs and sealed containers – for example, closed glass jars – are able
to explode and should not be heated in this oven.
6. Use this appliance only for its intended use as described in this manual. Do not use corrosive chemicals
or vapors in this appliance. This type of oven is specifically designed to heat, cook or dry food. It is not
designed for industrial or laboratory use.
7. As with any appliance, close supervision is necessary when used by children.
8. Do not operate this appliance if it has a damaged cord or plug, if it is not working properly or if it has
been damaged or dropped.
9. This appliance should be serviced only by qualified service personnel. Contact nearest Sharp
Authorized Servicer for examination, repair or adjustment.
10.Do not cover or block any openings on the appliance.
11.Do not store or use this appliance outdoors. Do not use this product near water – for example, near
a kitchen sink, in a wet basement, near a swimming pool or similar locations.
12.Do not use this appliance near the steamer or the fryer.
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.See door surface cleaning instructions on page 15.
17.To reduce the risk of fire in the oven cavity:
a. Do not overcook food. Carefully attend appliance when 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 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.
18. Liquids, such as water, coffee, or tea are able to be overheated beyond the boiling point without
appearing to be boiling. 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:
a. Do not overheat the liquid.
b. Stir the liquid both before and halfway through heating it.
c. Do not use straight-sided containers with narrow necks.Use a wide-mouthed container.
d. After heating,allow the container to stand in the microwave oven at least for 20 seconds before
removing the container.
e. Use extreme care when inserting a spoon or other utensi linto the container.
19. If the oven light fails, consult a SHARP AUTHORIZED SERVICER.
SAVE THESE INSTRUCTIONS
3
GROUNDING INSTRUCTIONS
This appliance must be grounded. This oven is equipped with a cord having a grounding wire with a grounding
plug. It must be plugged into a wall receptacle that is properly installed and grounded in accordance with the
National Electrical Code and local codes and ordinances. In the event of an electrical short circuit, grounding
reduces risk of electric shock by providing an escape wire for the electric current.
WARNING – Improper use of the grounding plug can result in a risk of electric shock.
Electrical Requirements
The electrical requirements are a 120 volt 60 Hz, AC only, 15 amp. or more
protected electrical supply. It is recommended that a separate circuit serving
only this appliance be provided.
The oven is equipped with a 3-prong grounding plug. It must be plugged into
a wall receptacle that is properly installed and grounded. Should you only
have a 2-prong outlet, have a qualified electrician install a correct wall receptacle.
A 3-prong adapter may be purchased and used temporarily if local codes
allow. Follow package directions.
A short power-supply cord is provided to reduce risk of becoming entangled in
or tripping over a longer cord.
Extension Cord
If it is necessary to use an extension cord, use only a 3-wire extension cord
that has a 3-blade grounding plug and a 3-slot receptacle that will accept the
plug on the microwave oven. The marked rating of the extension cord should
be AC 115-120 volt, 15 amp. or more.
Be careful not to drape the cord over the countertop or table where it can be
pulled on by children or tripped over accidentally.
Notes: 1. If you have any questions about the grounding or electrical in-
structions, consult a qualified electrician or service person.
2. Neither Sharp nor the dealer can accept any liability for damage to
the oven or personal injury resulting from failure to observe the
correct electrical connection procedures.
Radio or TV Interference
Should there be any interference caused by the microwave oven to your radio or TV, check that the microwave
oven is on a different electrical circuit, relocate the radio or TV as far away from the oven as feasible or check
position and signal of receiving antenna.
INSTALLATION
Because your Sharp Commercial Microwave Oven will be used frequently, place it so that there is easy access for all users.
1. Be sure all electrical requirements are met. See above.
2. Air intake openings are on the back of the unit. Install the unit at least
2 inches away from the nearest wall to permit adequate ventilation for
proper cooling and air flow in the oven.
3. Install the unit where no excessive heat or steam are generated. Do
not place next to an oven or cooking surface.
4. The unit may be secured to a countertop or stand. There is a screw
hole in the bottom of the unit. After the oven is permanently placed, drill
a hole through the counter top for a 3/16 inch self-tapping screw. The
hole should be 1 inch from the left side of the outer case cabinet and
7-1/8 inches back from the front edge of the cavity face plate.
4
1
/8"
7
1"
Hole
PART NAMES
MICROWAVE OVEN PARTS
1. Back splash cover
2. Side splash cover
3. Oven light
4. Ceramic shelf
5. Control panel
6. Cavity face plate
7. Door latch openings
8. Door latches
9. Door hinges
10.Door seals and sealing surfaces
11.Door handle
12.Oven door with see-through window
13.Air ventilation cover and openings
14.Power supply cord
15.Air intake openings
16.Outer case cabinet
5
PART NAMES
CONTROL PANEL
DEFONNO.X2CHECK
2
3
2
4
1
5
7
9
10
6
8
11
5
9
10
R-21HTR-21HV/JVR-21JCA
1. Digital readout
2. DOUBLE QUANTITY pad
3. EXPRESS DEFROST pad
4. Ten number pads for time and memory programming
5. SELECTATIME pad
6. STOP/CLEAR pad; touch to stop operation of
oven and clear remaining heating time
7. SELECTAPOWER pad for setting variable
power level (R-21HT only)
8. START pad; touch to operate oven after door
is closed and time is set
9. SET pad for setting memory
10.CHECK pad for checking memory
11.SIGNAL pad for setting signal sound
DEFONNO.X2CHECK
TIME GUIDE FOR ONE SERVING
10 - 30 sec.
3
Bagel, Roll
Muffin, Pastry
Pie Slice
1 - 2 min.
Beverage, Soup
Large Sandwich
Popcorn, 1.5 oz.
50
40
30
D
C
20
4
B
10
A
E
0
1
T
S
6
INSTRUCTIONS
With the door closed,turn the timer to
6
the desired time. Oven will begin
operating immediately.
8
To shut oven off manually,return timer
to "0".
11
12.Light Up Dial for setting cooking time
( R-21JCA only)
The letters from A to T correspond to cooking
time for convenience.
30 - 60 sec.
Hot Dog
Pizza Slice
Small Sandwich
2 - 3 min.
Casserole, Stew
Chili, Chowder
Popcorn, 3.5 oz.
1
F
G
H
P
Q
R
5
1.5
O
4
I
2
J
K
L
2.5
M
N
3
12
Accessory for R-21HT, R-21HV/JV : Menu labels
6
STEPS FOR OPERATING FOR R-21JCA
Your oven can be programmed for up to 6 minutes on HIGH (100%) power. The
1
50
40
30
D
C
20
B
10
A
0
T
6
1.5
F
G
E
H
I
J
K
L
M
N
O
P
Q
S
R
4
5
DEFROSTING FROZEN FOODS CHART
cooking time input varies from 10 seconds to 30 seconds depending on the total
length of the cooking time as shown in the table below.
2
Cooking timeIncrement
0 - 1 minute10 seconds
2.5
1 - 3 minutes15 seconds
3 - 6 minutes30 seconds
3
1. Place food on the ceramic shelf and close the door securely.
2. Turn the Light Up Dial to the desired cooking time. Note that the light indicates
the cooking time. Cooking will start immediately.
3. The oven light and the cooling fan will be on throughout any cooking operation.
4. When the Light Up Dial reaches “0” and the audible signal is heard, oven
operation ceases, the light goes out and the fan stops.
NOTE:
•The Light Up Dial can be set to operate the oven within 1 minute after a cooking
cycle ends or after closing the door.
•When you open the oven door during the cooking, the microwave activity stops
and the cooking program will be canceled. If necessary, turn the Light Up Dial
to the desired cooking time again.
ItemWeightMicrowaveProcedure
Time
Ground Meat
.50 lb.
1 minute
1. Power on 30 seconds. Break apart and remove
defrosted pieces. Stand 1 minute.
2. Power on 30 seconds. Allow to stand for 5 minutes to
equalize temperatures.
1.00 lb.
2 minutes
1. Power on 1 minute. Break apart and remove defrosted
pieces. Stand 2 minutes.
2. Power on 1 minute. Allow to stand for 5 minutes to
equalize temperatures.
Steaks (3/4”)
1.00 lb.
2 minutes
1. Power on 1 minute. Separate and shield, if necessary.
Stand 1 minute.
2. Power on 1 minute. Allow to stand for 5 minutes to
1.50 lb.
3 minutes
equalize temperatures.
1. Power on 1
Stand 2 minutes.
2. Power on 1
1
/2 minutes. Separate and shield, if necessary.
1
/2 minutes. Allow to stand for 5 minutes to
equalize temperatures.
1
Chops
1.00 lb.
1
/2 minutes
1. Power on 45 seconds. Separate and shield, if necessary.
Stand 2 minutes.
2. Power on 45 seconds. Allow to stand for 5 minutes to
equalize temperatures.
Boneless
Chicken Breasts
1.00 lb.
1
1
/2 minutes
1. Power on 45 seconds. Separate and shield, if necessary.
Stand 2 minutes.
2.
Turn chicken over and rearrange. Power on 45 seconds.
Allow to stand for 3 minutes to equalize temperatures.
Chicken Pieces
(with bone)
1.00 lb.
2 minutes
1. Power on 1 minute. Separate and shield, if necessary.
Stand 2 minutes.
2. Turn chicken over and rearrange. Power on 1 minute.
2.00 lb.
3 minutes
Allow to stand for 3 minutes to equalize temperatures.
1. Power on 1
1
/2 minutes. Separate and shield, if necessary.
Stand 2 minutes.
2. Turn chicken over and rearrange. Power on 1
Allow to stand for 3 minutes to equalize temperatures.
1
/2 minutes.
7
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