Installation Instructions and
Use and Care Guide
30" (76.2 cm) and 36" (91.4 cm)
Convertible Range Hood
GZ8330 Series
GZ8336 Series
www.whirlpool.com
IMPORTANT:
Read and save these instructions.
IMPORTANT:
Installer: Leave Installation Instructions with the homeowner.
Homeowner: Keep Installation Instructions for future reference.
Save Installation Instructions for local electrical inspector's use.
Quick Reference
Table of Contents:
Pages
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2 |
Before you start |
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Electrical requirements |
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3 |
Product dimensions |
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4 |
Venting requirements |
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7 |
Installation steps |
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7 |
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8 |
Use and Care Information |
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8 |
Warranty |
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9 |
10 |
Requesting Assistance |
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or Service |
99043793A/9763373
Before you start...
Your safety and the safety of others is very important.
We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages.
This is the safety alert symbol. This symbol alerts you to potential hazards that can kill
or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING”. These words mean:
DANGER
You can be killed or seriously injured if you don’t immediately follow instructions.
WARNING
You can be killed or seriously injured if you don’t follow instructions.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can happen if the instructions are not followed.
Important: Observe all governing codes and ordinances.
Proper installation is your responsibility. Make sure you have everything necessary for correct installation. It is the responsibility of the installer to comply with the clearances specified.
Check the location where the range hood will be installed. The location should be away from strong draft areas, such as windows, doors, and strong heating vents.
Mobile home installation
The installation of this range hood must conform to the Manufactured Home Construction Safety Standards, Title 24 CFR, Part 328 (formerly the Federal Standard for Mobile Home Construction and Safety, Title 24, HUD, Part 280) or when such standard is not applicable, the Standard for Manufactured Home Installation 1982 (Manufactured Home Sites, Communities and Setups) ANSI A225.1/NFPA 501A*, or latest edition, or with local codes.
WARNING — TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable Codes and Standards, including Fire Rated Construction. Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning equipment to prevent back drafting. Follow the heating equipment manufacturer’s guideline and safety standards such as those published by the National Fire Protection Association (NFPA), and the American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE), and the local code authorities.
When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
Ducted fans must always be vented to the outdoors.
WARNING — To reduce the risk of fire, use only metal ductwork.
This unit must be grounded.
This hood is factory set for vented installations. For non-vented installations, purchase Charcoal Filter Pad Kit No. 4396390 (contains two filter pads) from your dealer.
Tools and materials needed for installation:
• flat blade |
• 1-1/4" (3.0 cm) |
screwdriver |
drill bit |
• pliers |
• 1/8" (or 3 mm) drill |
• drill |
bit for pilot holes |
• ruler |
• pencil |
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For vented installations, you also need:
• compass or 8" • 3-1/4"x10" (81.3 x 25.4 cm)
(20.3 cm) circle |
to 6" (15.2 cm) round |
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template |
transition piece if using |
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• metal snips |
round vent |
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• keyhole saw |
• 6" (15.2 cm) round damper |
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• saber saw |
if using 6" (15.2 cm) round |
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vent system |
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• duct tape |
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Cabinets with recessed bottoms:
•2, 2" (5.8 cm) wide filler strips. Length and thickness determined by recess dimensions.
•4 flat head wood screws or machine screws with washers and nuts to attach filler strips.
Parts supplied:
•2, aluminum filters
•3-1/4" x 10" (8.3 x 25.4 cm) damper/vent connector
•parts bag
Electrical requirements
Important: Observe all governing codes and ordinances.
It is the customer’s responsibility:
•To contact a qualified electrical installer.
•To assure that the electrical installation is adequate and in conformance with National Electrical Code, ANSI/NFPA 70
— latest edition*, or CSA Standards C22.1-94, Canadian Electrical Code, Part 1 and C22.2 No.0-M91 - latest edition** and all local codes and ordinances.
A separate ground wire must be used. It is recommended that a qualified electrician determine that the ground path is adequate.
A 120-volt, 60-Hz, AC-only, fused electrical system is required. A separate 15-amp circuit is recommended.
Do not ground to a gas pipe.
Check with a qualified electrician if you are not sure range hood is properly grounded.
Do not have a fuse in the neutral or ground circuit.
IMPORTANT:
Save Installation Instructions for electrical inspector’s use.
The range hood must be connected with copper wire only.
The range hood should be connected directly to the fused disconnect (or circuit breaker) box through flexible armored or nonmetallic sheathed copper cable. A U.L.- or C.S.A.-listed strain relief must be provided at each end of the power supply cable. Wire sizes (COPPER WIRE ONLY) and connections must conform with the rating of the appliance as specified on the model/serial rating plate.
2
Wire sizes must conform to the requirements of the National Electrical Code ANSI/NFPA 70 — latest edition*, or CSA Standards C22.1-94, Canadian Electrical Code Part 1 and C22.2 No. 0-M91 - latest edition** and all local codes and ordinances.
A U.L.- or C.S.A.-listed conduit connector must be provided at each end of the power supply cable (at the range hood and at the junction box).
In U.S. only: For power cord connected installations, a U.L.- listed range hood cord-connection kit MUST be used. Cord kit has not been evaluated for use in Canada.
Copies of the standards listed may be obtained from:
*National Fire Protection Association One Batterymarch Park
Quincy, Massachusetts 02269
**CSA International
8501 East Pleasant Valley Road Cleveland, Ohio 44131-5575
Product dimensions
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1-1/2" |
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12" |
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(3.8 cm) |
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1" |
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(30.5 cm) |
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(2.5 cm) |
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9" |
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(22.9 cm) |
2" |
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(5.1 cm) |
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9" |
3/4" |
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(22.9 cm) |
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(1.9 cm) |
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1-1/2"
(3.8 cm)
3/8" 
(9.5 mm)
7-1/2"
(19.1 cm)
29-7/8" (75.9 cm) model: GZ8330 |
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20" |
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35-7/8" (91.1 cm) model: GZ8336 |
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(50.8 cm) |
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Venting requirements
Venting system must terminate to the outside.
Do not terminate the vent in an attic or other enclosed space.
Do not use four-inch (10.2 cm) laundry-type wall caps.
Do not use plastic vent.
Vent system needed for installation is not included.
Determine which outside venting method needs to be used. It is recommended that the vent system be installed before installing the hood.
NOTE: If a non-vented (recirculating) installation is desired, follow instructions on Page 5.
The length of the vent system and number of elbows should be kept to a minimum to provide efficient performance. The size of the vent system should be uniform. Do Not install two elbows together. Use duct tape to seal all joints in the vent system. Vent system can terminate either through the roof or wall. Use caulking to seal exterior wall or roof opening around exhaust hood. For the most efficient and quiet operation, it is recommended that the range be vented vertically through the
roof through 6" (15.2 cm) round vent system.
Figures 1 and 2 show common venting methods and what types of materials are needed.
Vertical roof venting
roof cap
6" (15.2 cm) or larger round or 3-1/4" x 10" (8.3 x 25.4 cm) through roof
transition piece
27" (68.6 cm) to 33" (83.8 cm) above cooking surface
Figure 1
Recommended vent length
Use 3-1/4" x 10" (8.3 x 25.4 cm) or 6" (15.2 cm) or larger round vent with a maximum length of 70 feet (21.3 m) for vent system. If 7" (17.8 cm) round vent is used, the maximum length is 80 ft. (24.4 m). For best performance, use no more than three 90° elbows. To calculate the length of system you need, add the equivalent feet (meters) for each vent piece used in the system. See the examples on the next page.
Horizontal wall venting
6" (15.2 cm) or larger round or 3-1/4" x 10" (8.3 x 25.4 cm) through the wall
3-1/4" x 10" |
wall |
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(8.3 x 25.4 cm) |
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through the wall |
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27" (68.6 cm) to 33" (83.8 cm) above cooking surface
Figure 2
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3-1/4" x 10" (8.3 x 25.4 cm) vent system |
Now start... |
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3-1/4" x 10" |
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(8.3 x 25.4 cm) |
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With range hood in kitchen. |
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elbow |
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6 ft. ( 1.8 m) |
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wall cap |
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Slide cardboard or hardboard under |
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range before moving range across |
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floor to prevent damaging floor |
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Maximum length |
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70 ft. |
(21.3 m) |
covering. |
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1 - 90° elbow |
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5 ft. |
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Cover countertop, cooktop or set-in |
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8 ft. (2.4 m) straight = |
8 ft. |
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range with a thick, protective covering |
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2 ft. |
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to prevent damaging them. |
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1 - wall cap |
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0 ft. |
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(0.6 m) |
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Length of 3-1/4" x |
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1. Disconnect and move |
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10" (8.3 x 25.4 cm) |
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system |
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13 ft. (3.9 m) |
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freestanding range from cabinet |
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Recommended standard fittings |
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opening to provide easier access |
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to upper cabinet and rear wall. Put |
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a thick, protective covering over |
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cooktop, set-in range or |
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countertop to protect from |
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damage or dirt. |
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3-1/4" x 10" |
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3-1/4" x 10" |
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3-1/4" x 10" |
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2. Determine which venting |
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(8.3 x 25.4 cm) |
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(8.3 x 25.4 cm) |
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(8.3 x 25.4 cm) |
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90° elbow = |
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flat elbow = |
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wall cap = |
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5 ft. (1.5 m) |
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12 ft. (3.7 m) |
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0 ft. (0 m) |
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method (roof or wall venting or |
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non-venting) you need to use. This |
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range hood is shipped for vented |
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6" (15.2 cm) vent system |
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installation. |
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90° elbow |
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wall cap |
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6 ft. (1.8 m) |
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Prepare hood |
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location |
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2 ft. (0.6 m)
Maximum length* |
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70 ft. (21.3 m) |
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wood filler strips |
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(recessed cabinet |
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1 - 90° elbows |
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5 ft. |
(1.5 m) |
3" |
bottoms only) |
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1 - wall cap |
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0 ft. |
(0 m) |
(7.6 cm) |
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8 ft. (2.4 m) straight = |
8 ft. |
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Length of 6" |
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cabinet |
(15.2 cm) system |
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13 ft. |
(3.9 m) |
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bottom |
* If 7" (17.8 cm) round vent is used, maximum length of vent |
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system is 80 ft. (24.4 m). |
3" |
wall |
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(7.6 cm) |
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Recommended standard fittings |
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3. If cabinet has recessed |
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bottom, add wood filler strips on |
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each side. Locate screws to attach |
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filler strips in locations shown. |
90° elbow = |
45° elbow = |
6" (15.2 cm) |
3-1/4" x 10" |
3-1/4" x 10" |
5 ft. (1.5 m) |
2.5 ft. (0.8 m) |
wall cap = |
(8.3 x 25.4 cm) to |
(8.3 x 25.4 cm) |
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0 ft. (0 m) |
6" (15.2 cm) = |
to 6" (15.2 cm) |
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4.5 ft. (1.4 m) |
90° elbow = |
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5 ft. (1.5 m) |
4
4. From the diagrams below, select the diagram for your installation.
Vented installations: Cut the vent system and electrical wiring access holes as required. Either wiring hole can be used.
Non-vented installations: Cut only the one 1-1/4" (3.2 cm) dia. wiring access hole required. If wiring through the top, use location shown in VERTICAL vent systems. If wiring through the back, use location shown in HORIZONTAL vent system.
6-1/4" |
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(15.9 cm) |
7-1/2" |
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(19.1 cm) |
centerline |
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5-1/8" 1-3/8" wall 1-1/4" 2-1/8" (13.0 cm) (3.5 cm) (3.2 cm) (5.4 cm)
dia. hole
3-1/4" x 10" (8.3 x 25.4 cm) RECTANGULAR VERTICAL vent system
centerline |
1-1/4" (3.2 cm) |
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cabinet |
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dia. hole |
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front |
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1/8" |
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3/4" |
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(19 mm) |
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3-7/8" |
6-1/4" |
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7-1/2" |
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(9.8 cm) |
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3-1/4" x 10" (8.3 x 25.4 cm) HORIZONTAL vent system
Prepare and install the hood
WARNING
Excessive Weight Hazard
Use two or more people to move and install range hood.
Failure to do so can result in back or other injury.
For Steps 5 through 10, refer to Figure 3.
5. Set hood upside down on a protective covering such as cardboard or large towel.
screws
bottom cover
filters
wiring box cover
screws 
blower wheel
6. Remove bottom cover screws and bottom cover.
7. Remove filters.
8. Remove wiring box cover and screws.
9. To make the hood lighter and easier to install, it is recommended that the blower assembly be removed.
To remove:
a)Disconnect blower wiring plug.
b)Loosen, but do not remove, knurled nuts on mounting rods. Slip rods out of blower mounting brackets.
Important: Do not grasp blower by blower wheels. Wheels may be damaged.
c) Lift blower out and set aside.
10. Remove light lens. Squeeze sides of lens toward center to free lens tabs and lift lens out.
11. Depending on your installation, remove either back or top wiring knockout.
Figure 3
light
lens 
knurled
nut mounting rod
blower assembly
mounting bracket
protective cover
For vented installations, go to Step 12a.
For non-vented installations, go to Step 13.
12a. Depending on your installation, remove either back or top vent knockout.
vertical |
black |
|
screws |
||
vent |
||
|
||
|
hinge pin |
|
|
vent |
|
horizontal |
knockouts |
|
|
||
vent |
|
black screws |
hinge pin |
12b. Attach the damper/vent connector to the hood. Use the two black sheet metal screws provided in the parts bag. Note: If wall cap is directly behind vent connector, the dampers in the connector and wall cap MUST NOT interfere with each other. Remove the vent connector damper if they
interfere.
5
keyhole slot
front of hood
13. Lift the range hood up under cabinet and determine final position. Mark on the underside of cabinet the location of the four keyhole mounting slots. Set range hood aside on a protected surface.
drill pilot hole
14. Use 1/8" (or 3 mm) drill bit and drill 4 pilot holes as shown.
1/4" (6.4 mm)
15. Remove the 4 hood mounting screws from the parts bag and install in pilot holes. Leave screw heads away from filler strips or cabinet bottom about 1/4" (6.4 cm)
16. If using direct wiring, make sure power is disconnected, and pull about 12" (30 cm) of wire through wall or cabinet and into opening.
17. Lift range hood into final position, feeding electrical wire through wiring opening. Position the range hood so that the large end of the keyhole slots are over the screws.Then push the hood toward the wall so that the screws are in the neck of the slots.Tighten mounting screws to cabinet, making sure mounting screws are in narrow neck of slots. Make sure that damper blade, if used, rotates up and down freely.
18. Connect ventwork to hood. Seal joints with duct tape to make the secure and air tight.
Make electrical connection
WARNING
Electrical Shock Hazard
Disconnect power before making electrical connections.
Connect ground wire to green ground screw in terminal box.
Failure to do so can result in death or electrical shock.
white
black |
black |
green
|
locknut |
|
green or bare |
electrical |
|
connector |
||
ground wire |
||
|
19. Make electrical connections. Install locknut on electrical connector and tighten securely. Connect white to white and black to black wires using twist-on connectors. Connect green or bare ground wire to the green ground screw.
Using a U.L.-listed power supply cord-connection kit (U.S. only):
Follow Power Cord Kit instructions for connecting wiring.
blower |
blower |
discharge |
discharge |
horizontal vent |
vertical vent |
22. Reinstall blower.
Vented installations:
Reinstall blower. Do not grasp blower by blower wheels. Position blower so that blower discharge lines up with damper/vent connector and slip rods into mounting brackets on blower assembly. Tighten knurled nuts securely and reconnect blower plug.
Non-vented installations:
front holes
blower discharge
Reinstall blower. Do not grasp blower by blower wheels. Move mounting rods to front holes in hood support channels. Position blower so that blower discharge lines up with louvered opening on hood front.
Slip rods into mounting brackets and tighten knurled nuts securely. Reconnect blower plug.
louver cover
Remove louver cover on control panel. Pry cover off with screwdriver or knife.
23. Reinstall bottom cover (see Step 6).
20. Replace wiring box cover and screws. Make sure that wires are not pinched between cover and hood.
21. Install two 75 watt max. bulbs, or one 75 watt and one 25 watt bulb for night-light use. Install 25 watt bulb in right-hand socket.
To get the most efficient use from your new range hood, read the “Use and Care Information” section.
Keep your Whirlpool Installation Instructions and Use and Care Guide close to range hood for easy reference.
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