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3 ELECTRICAL GROUNDING INSTRUCTIONS

This appliance must be grounded. This oven is equipped with a cord having a grounding wire with a ground-
ing 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, ground-
ing 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.

The oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR
REMOVE THE GROUNDING PIN FROM THE PLUG.

The Power Supply Cord and plug must be connected to a
separate 120 Volt AC, 60 Hz, 15 Amp, or more branch circuit,
single grounded receptacle. The receptacle should be located
inside the cabinet directly above the Microwave Oven/Hood
mounting location.

NOTE:

1. If you have any questions about the grounding or electrical

instructions, consult a qualified electrician or serviceperson.

2. Neither Sharp nor the dealer can accept any liability for dam-

age to the oven or personal injury resulting from failure to
observe the correct electrical connection procedures.

2

Figure 3

Ground

Receptacle  

Opening for
Power Cord

4 HOOD EXHAUST DUCT

When the hood is vented to the outside, a hood exhaust duct is required. All ductwork must be metal;
absolutely do not use plastic duct. Check that all connections are made securely. Please read the following
carefully: 

Exhaust connection: The hood exhaust has been designed to connect to a standard 3

1

/

4

" x 10" rectangular

duct. If round duct is required, a rectangular-to-round adapter must be used.

Rear exhaust: If a rear or horizontal exhaust is to be used, care should be taken to align the exhaust with
the space between the studs, or wall should be prepared at the time it is constructed by leaving enough space
between wall studs to accommodate exhaust.

Maximum duct length: For satisfactory air movement, the total duct length of 3

1

/

4

" X 10" rectangular or 6"

diameter round duct should not exceed 140 feet.

Elbows, adapters, wall, roof caps, etc. present addi-
tional resistance to air flow and are equivalent to
a section of straight duct which is longer than their
actual physical size. When calculating the total
length, add the equivalent lengths of all transitions
and adapters plus the length of all straight duct
sections. Figure 4 shows the approximate feet of
equivalent length of some typical ductwork parts.
Use the values in parentheses for calculating air
flow resistance equivalent, which should total less
than 140 feet.

5 TOOLS RECOMMENDED FOR INSTALLATION

• Phillips Screwdriver

• 1

1

/

2

" Wood Bit or Metal Hole Cutter (if metal cabinet is used)

• Electric Drill

• 

1

/

2

", 

5

/

8

" and 

3

/

32

" Drill Bits

• Scissors  

• Saw to cut exhaust opening (if needed)

• Pencil     

• Measure        

• Tape

• Protective Drop Cloth for product and range—you may also use carton for protection

Figure 4

Summary of Contents for R-1880LS

Page 1: ... the toggle bolts and top cabinet screws See Wall Template for details The top cabinet should be tested to ensure it is securely attached to the wall Place extra weight up to 110 pounds inside the top cabinet to test the support 1 OVER THE RANGE MICROWAVE OVEN HOOD SYSTEM INSTALLATION INSTRUCTIONS Please read all instructions thoroughly before installing the Microwave Oven Hood System Two people a...

Page 2: ...ll ductwork must be metal absolutely do not use plastic duct Check that all connections are made securely Please read the following carefully Exhaust connection The hood exhaust has been designed to connect to a standard 31 4 x 10 rectangular duct If round duct is required a rectangular to round adapter must be used Rear exhaust If a rear or horizontal exhaust is to be used care should be taken to...

Page 3: ...e installation easier 1 Open the bottom of the carton remove oven and all packing materials 2 CHECK THE OVEN Check the oven for any damage such as misaligned or bent door damaged door seals and sealing surfaces broken or loose door hinges and latches and dents inside the cavity or on the door If there is any damage do not operate the oven and contact your dealer or SHARP AUTHORIZED SERVICER 3 Plac...

Page 4: ...nd save the 4 screws from Fan Cover Bracket Remove Fan Cover Bracket by sliding it in the opposite direction of the arrow on the Fan Cover Bracket as shown in Figure 8 2 Lift Hood Fan Unit carefully and slip wires out of cavity See Figure 9 CAUTION Do not pull or stretch hood fan wiring 3 Rotate the Hood Fan Unit 180 so that the fan blade openings are facing the back of the oven Note you will need...

Page 5: ...re 15 B Replace Hood Fan Unit into the oven Be careful not to pinch the lead wire between the inner bracket and the Hood Fan Unit Put the lead wire into Wire Box See Figure 15 C 4 Replace the Fan Cover Bracket Make sure the fan blades are visible through the top openings in the oven before proceeding 5 Attach the Fan Cover Bracket to unit with the 4 screws removed in step 1 above See Figure 16 The...

Page 6: ...n the thickness of the wall between the Mounting Plate and the end of each of the Toggle Nuts in the closed position If you do not leave enough space the Toggle Nut will not be able to open on the other side of the wall Also once a Toggle Nut opens it cannot be withdrawn from the hole therefore make sure all of the Toggles are in the correct position before insertion 4 Align the Mounting Plate car...

Page 7: ...arged Remove the carton portions 6 Tighten the two unit mounting screws located in the grease filter openings See Figure 23 7 Install grease filters by fitting into the opening Push back and up into place See Figure 24 8 Use the two Top Cabinet Screws D and two Flat Washers E supplied in the INSTALLATION HARDWARE to attach the unit to the top cabinet See Figure 25 9 Make a bundle of the power supp...

Page 8: ...er Call toll free 1 800 BE SHARP 237 4277 1 CHARCOAL FILTER RK 220 Filter is used when hood exhaust is recirculated only 2 Filler Panel Kit For use when the oven is installed in a 36 inch or 42 inch wide opening The metal filler panels come in 3 inch wide pairs for 36 inch and 6 inch wide pairs for 42 inch wide opening White black biscuit and stainless steel are available To purchase contact Imper...

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