
SV20569 rev. 01
WPD38 SERIES
INTENDED FOR DOMESTIC COOKING ONLY
INSTALLER: LEAVE THIS MANUAL WITH HOMEOWNER.
HOMEOWNER: USE AND CARE INFORMATION ON PAGES 9
AND 10.
READ AND SAVE THESE INSTRUCTIONS
INSTALLATION INSTRUCTIONS
SUITABLE FOR USE IN DAMP LOCATIONS WHEN INSTALLED IN A
GFCI PROTECTED BRANCH-CIRCUIT.
I
NTENDED FOR OUTDOOR COVERED PATIO OR LANAI AREA.
BEST; Hartford, Wisconsin www.BestRangeHoods.com 800-558-1711
BEST; Drummondville, QC, Canada www.BestRangeHoods.com 866-737-7770
REGISTER YOUR PRODUCT ON LINE AT: www.BestRangeHoods.com/register
For additional information - visit www.BestRangeHoods.com

WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC
SHOCK OR INJURY TO PERSONS, OBSERVE
THE FOLLOWING:
1. Use this unit only in the manner intended by the
manufacturer. If you have questions, contact the
manufacturer at the address or telephone number
listed in the warranty.
2. Before servicing or cleaning unit, switch power off
at service panel and lock service disconnecting
means to prevent power from being switched on
accidentally. When the service disconnecting
means cannot be locked, securely fasten a prominent
warning device, such as a tag, to the service panel.
3. Installation work and electrical wiring must be done
by qualified personnel in accordance with all
applicable codes and standards, including
fire-rated construction codes and standards.
4. Sufficient air is needed for proper combustion and
exhausting of gases through the flue (chimney) of
fuel burning equipment to prevent backdrafting.
Follow the heating equipment manufacturer’s
guidelines and safety standards such as those
published by the National Fire Protection
Association (NFPA), and the American Society for
Heating, Refrigeration and Air Conditioning
Engineers (ASHRAE), and the local code authorities.
5. When cutting or drilling into wall or ceiling, do not
damage electrical wiring and other hidden utilities.
6. Ducted fans must always be vented to the outdoors.
7. Do not use this unit with any additional solid-state
speed control device.
8. To reduce the risk of fire, use only metal ductwork.
9. This unit must be grounded and protected by a
GFCI.
10.
Suitable for use in damp locations only when installed
in a GFCI PROTECTED branch-circuit.
11.
This unit is not designed to be used with a charcoal
grill.
12. When applicable local regulations comprise more
restrictive installation and/or certification
requirements, the aforementioned requirements
prevail on those of this document and the installer
agrees to conform to these at his own expenses.
TO REDUCE THE RISK OF A RANGE TOP
GREASE FIRE:
a) Never leave surface units unattended at high
settings. Boilovers cause smoking and greasy
spillovers that may ignite. Heat oils slowly on low or
medium settings.
b) Always turn hood ON when cooking at high heat or
when flambeing food (i.e.: Crêpes Suzette,
Cherries Jubilee, Peppercorn Beef Flambé).
c) Clean ventilating fans frequently. Grease should
not be allowed to accumulate on fans, filters or
exhaust ducts.
d) Use proper pan size. Always use cookware
appropriate for the size of the surface element.
WARNING
TO REDUCE THE RISK OF INJURY TO PERSONS
IN THE EVENT OF A RANGE TOP GREASE
FIRE, OBSERVE THE FOLLOWING*:
1. SMOTHER FLAMES with a close-fitting lid,
cookie sheet or metal tray, then turn off the burner.
BE CAREFUL TO PREVENT BURNS. IF THE
FLAMES DO NOT GO OUT IMMEDIATELY,
EVACUATE AND CALL THE FIRE DEPARTMENT.
2. NEVER PICK UP A FLAMING PAN – You may be
burned.
3. DO NOT USE WATER, including wet dishcloths
or towels – This could cause a violent steam
explosion.
4. Use an extinguisher ONLY if:
A. You own a Class ABC extinguisher and you
know how to operate it.
B. The fire is small and contained in the area
where it started.
C. The fire department has been called.
D. You can fight the fire with your back to an exit.
*Based on “Kitchen Fire Safety Tips” published by NFPA.
- 2 -
CAUTION
1. For general ventilating use only. Do not use to
exhaust hazardous or explosive materials and
vapors.
2. To avoid motor bearing damage and noisy and/or
unbalanced impellers, keep drywall spray,
construction dust, etc. off power unit.
3. Your hood motor has a thermal overload which will
automatically shut off the motor if it becomes
overheated. The motor will restart when it will be
cooled down. If the motor continues to shut off and
restart, have the hood serviced.
4. For best capture of cooking impurities, the bottom
of the hood must be located at a minimum distance
of 36" above cooking surface.
5. Two installers are recommended because of the
large size and weight of this hood.
6. To reduce the risk of fire and to properly exhaust
air, be sure to duct air outside—Do not exhaust air
into spaces within walls or ceiling or into attics,
crawl space or garage.
7. This product is equipped with a thermostat which
may start blower automatically. To reduce the risk
of injury and to prevent power from being switched
on accidentally, switch power off at service panel
and lock or tag service panel.
8. Please read specification label on product for
further information and requirements.

- WPD38 SERIES RANGE HOOD SYSTEM -
- 3 -
MODEL 437
(H
IGH CAPACITY ROOF CAP)
M
ODEL 441
(10’’ R
OUND WALL CAP)
M
ODEL 410
(10” ROUND DUCT
— 2 FT. SECTIONS)
M
ODEL 418
(10” ROUND
ADJUSTABLE ELBOW)
D
UAL BLOWER
1200 CFM
(INCLUDED)
10” R
OUND ADAPTER
(INCLUDED)
OPTIONAL
DECORATIVE FLUE
AEWPD SERIES
WPD38 SERIES
RANGE HOOD
OPTIONAL BACKSPLASH
ABWPD SERIES
36"
OR 48" WIDTH
(STAINLESS STEEL WALL COVERING
WITH WARMING SHELVES)
OPTIONAL
WALL EXTENSION
AWWPD SERIES

- 4 -
1. INSTALL DUCTWORK AND ELECTRICAL WIRING
Plan where and how the ductwork will be installed.
A straight, short duct run will allow the hood to
perform most efficiently.
Install proper-sized ductwork, elbows and roof or wall
cap. Connect metal ductwork to cap and work back
towards the hood location. Use 2” metal foil duct tape
to seal the joints.
Run 3-wire power supply cable to installation location.
For best capture of cooking impurities, the bottom
of the hood must be located at a minimum
distance of 36" above cooking surface.
18"
WALL CAP
36" MINIMUM ABOVE
COOKING
SURFACE
16" TO
TOP
OF WOOD
MOUNTING
STRIP
OPTIONAL DECORATIVE
FLUE OR SOFFIT
HH0181A
ROOF CAP
10" ROUND DUCT
10" ROUND ELBOW
10" ROUND
ADAPTER
The power cable must be a GFCI protected
branch circuit.
WARNING
Make sure that the following items are included:
- Range hood
- Wood strip (attached to back of hood)
- Installation manual
- Accessories including:
• Baffle filters: 3 for 36” width model, 4 for 48” width model and 5 for 60” width model
• Baffle filters handles (taped inside the hood)
• Shielded halogen bulbs (120 V, 50 W max., MR16 with GU10 base) (2 for 36” width hood, 3 for
48” and 60” width hoods)
• 10” round adapter (taped inside the hood)
• Bag of parts: 3 waterproof wire connectors, 2 wire clamps LP16-AP, 8 no. 8 x 5/8’’ screws,
2 no. 8 x 3/8’’ zinc-plated screws, 8 no. 8 x 3/8’’ screws, 4 no. 10 x 2” flat head screws,
10 no. 8-32 x 3/8” screws, 2 wall anchors, 2 washers 3/16’’ ID x 3/4’’ OD
2. PREPARE INSTALLATION
NOTE: Before proceeding to the installation, check the contents of the box. If items are missing or
damaged, contact the manufacturer.
When performing installation, servicing or cleaning the unit, it is recommended
to wear safety glasses and gloves.
WARNING
This range hood is not designed for use with a charcoal grill.
WARNING
This range hood is intended for outdoor covered patio or lanai area. As with all electric appliances,
this unit should be protected from the effects of weather as much as possible.

4. INSTALL WALL EXTENSION (OPTIONAL)
AWWPD Series
Wall extension must be installed before the hood (see instructions packed with wall extension).
- 5 -
3. INSTALL BACKSPLASH (OPTIONAL)
ABWPD Series
(for 36” and 48” widths range hoods only)
Backsplash must be installed before
the hood shell because the hood shell covers the backsplash
top mounting screws (see instructions packed with backsplash).
5. REMOVE KNOCKOUT OPENING
Punch out the electrical knockout hole on the back of
the hood. Install the wire clamp (included in parts
bag).
6. REMOVE BAFFLE FILTERS AND GREASE DRIP RAIL
A. Remove tape on filters.
Remove filters from hood and set aside.
NOTE: It is recommended to start with the center one(s).
B. Remove tape on grease drip rail (1).
Lift out grease drip rail and set aside.
1
AB
2. PREPARE INSTALLATION (CONT’D)
Parts sold separately:
- ABWPD Series Backsplash, 36” or 48” width (optional)
- AEWPD Series Decorative flue, to be installed over the hood (optional)
- AWWPD Series Wall extension, 36”, 48” or 60” width (optional)
- Transitions, duct, elbows, dampers, wall and roof caps
Refer to page 3 for a complete list of venting options and model numbers.
NOTE: During installation, protect countertop and/or cooktop.

7. INSTALL ADAPTER
Remove adapter from inside hood.
Using both no. 8 x 3/8” zinc-plated screws from parts
bag, assemble the adapter on the top of the hood.
Seal all joints with metal foil duct tape to eliminate air
leaks.
- 6 -
1. Wall
2. Wood mounting strip
3. Flat head screw
4. Wall anchor location
5. Back of hood outline
6. Wall studs
8. INSTALL WOOD MOUNTING STRIP (IF NOT USING WALL EXTENSION)
NOTE: If range hood is installed with optional wall extension,
refer to the instructions sheet included with the
wall extension for wood mounting strip location.
Measure and mark a level line on wall above cooktop
location for the wood mounting strip (see illustration on
page 4). Remove wood mounting strip from back of hood.
Center wood mounting strip over location (see illustration
at right).
Use no. 10 x 2’’ flat head screws to secure the mounting
strip to the wall.
Make sure to hit the wall studs.
Due to the weight of this hood, ensure that the wood strip is attached to all of
the available studs (2 studs minimum for 36" width hood and 3 studs minimum
for 48" or 60" width hood); not into the wall alone.
CAUTION
HJ0069
MOUNTING SCREWS LOCATION
9. INSTALL HOOD
At the end of installation, the following
areas should have been sealed to prevent
water infiltration:
•
Around adapter (1)
• Between wall and hood (2)
• 4 holes on top of the hood (if not installing optional
decorative flue) (3)
CAUTION

- 7 -
Remove the electrical compartment
cover. Insert the house wiring in the
hood and tighten the wire clamp to
secure the wiring.
9. INSTALL HOOD (CONT’D)
ELECTRICAL COMPARTMENT COVER
Hold the hood until it is completely secured to the wood mounting strip.
CAUTION
Rest the back cavity of the hood on
the wood mounting strip.
Attach 10” round duct to adapter.
Secure the hood to wood mounting
strip with 4 screws no. 8 x 5/8’’ (for 36’’
width hood) or 6 screws (for 48’’ and
60’’ width hoods) provided at locations
shown. Drill two 3/16’’ diameter holes
into the wall for wall anchors through
the existing holes in the inside hood
back in the locations shown. Then,
install both wall anchors with the
remaining no. 8 x 5/8’’ screws and
both washers provided.
MOUNTING SCREWS LOCATION
W
ALL ANCHORS LOCATION
11. CONNECT WIRING
Risk of electric shock. Electrical wiring must be done by qualified personnel in
accordance with all applicable codes and standards. Before connecting wires,
switch power off at service panel and lock service disconnecting means to
prevent power to be switched on accidentally.
WARNING
WATERPROOF WIRE CONNECTORS INSTRUCTIONS:
1. Strip wires 3/8’’.
2. Align frayed strands or conductors.
3. Do not pre-twist. Place stripped wires together with ends even, but lead smaller stranded wires
slightly ahead of larger solid or stranded wire.
4. Twist connector onto wires pushing firmly until hand-tight. DO NOT over torque.
5. When inserting wires into connectors, some sealant may leak out. Wipe off excess sealant in
and around conductors. DO NOT REUSE.
10. INSTALL DECORATIVE FLUE (OPTIONAL)
AEWPD Series
Refer to the instructions included with the optional decorative flue.

- 8 -
Connect cable into electrical compartment
using provided waterproof wire connectors.
Connect BLACK to BLACK, WHITE to WHITE
and GREEN or bare wire under ground screw.
Reinstall electrical compartment cover.
Reinstall grease drip rail. The illustration at right
shows how to reinsert the grease drip rail into the
range hood.
12. REINSTALL GREASE DRIP RAIL AND BAFFLE FILTERS
Remove protective plastic film covering filters before installing them.
CAUTION
11. CONNECT WIRING (CONT’D)
NOTE: Assemble the metal handles to the filters, using provided no. 8-32 x 3/8” screws, before
installing them in the hood.
It is recommended to install side filters first and finish with center one(s).
1. Insert one end of the filter into the upper channel of the hood.
2. Raise the other end toward the inside of hood and insert in the grease drip rail of the hood.

- 9 -
1. To remove lamps, gently push upwards and turn
counterclockwise to disengage bulb leads from
their grooves.
NOTE: To ease removal of the bulbs, use a rubber
dishwashing glove or use suction cup tool
available from Best. Contact Best
Technical Support at 1-800-558-1711 to
order suction cup tool, part no. 99526707.
2. Install the new lamps by placing the bulb leads into their grooves in the socket.
3. Gently push upwards and turn clockwise until secure.
13. LIGHT BULBS REPLACEMENT
This hood requires 120 V, 50 W, MR16 with GU10 base, shielded halogen lamps (included). (2 for
36” width hood, 3 for 48” and 60” width hoods.)
Do not touch lamps during or soon after operation. Burns may occur. In order to
prevent the risk of personal injury, only install shielded halogen lamps. Also,
never install a cool beam, a dichroïc lamp, a lamp not suitable for use in
recessed luminaires or identified for use in enclosed fixtures.
WARNING
14. CARE
Baffle Filters
The baffle filters should be cleaned frequently. Use a warm detergent solution. Wash more often
if your cooking style generates greater grease like frying foods or wok cooking.
Remove baffle filters by pushing them towards the front of the hood and rotating filters downward.
Baffle filters are dishwasher safe. Allow filters to dry completely before reinstalling them in the hood.
Clean all-metal filters in the dishwasher using a non-phosphate detergent. Discoloration of the
filter may occur if using phosphate detergent or as a result of local water conditions—but this will
not affect filter performance. This discoloration is not covered by the warranty.
Grease Drip Rail
The grease drip rail should be cleaned frequently. Lift it out from the hood and use a warm detergent
solution. As for the baffle filters, wash more often if your cooking style generates greater grease
like frying foods or wok cooking. Allow grease drip rail to dry completely before reinstalling it in the
hood.
Blowers Cleaning
Remove the filters in order to access the blowers. Vacuum blowers to clean. Do not immerse in
water.
Hood Cleaning
Stainless steel:
Do:
• Regularly wash with clean cloth or rag
soaked with warm water and mild soap or
liquid dish detergent.
• Always clean in the direction of original polish
lines.
• Always rinse well with clear water (2 or 3
times) after cleaning. Wipe dry completely.
• You may also use a specialized household
stainless steel cleaner.
Don’t:
• Use any steel or stainless steel wool or any
other scrapers to remove stubborn dirt.
• Use any harsh or abrasive cleansers.
• Allow dirt to accumulate.
• Let plaster dust or any other construction
residues reach the hood. During construction/
renovation, cover the hood to make sure no
dust sticks to stainless steel surface.

- 10 -
14. CARE (CONT’D)
Avoid when choosing a detergent:
• Any cleaners that contain bleach will attack stainless steel.
• Any products containing: chloride, fluoride, iodide, bromide will deteriorate surfaces rapidly.
• Any combustible products used for cleaning such as acetone, alcohol, ether, benzol, etc., are
highly explosive and should never be used close to a range.
BLOWER
The blower is operated using two controls.
Use the on/off rocker switch (2) to start and stop
the blower. When turned ON, the switch turns red
and the blower operates at the speed set by the
speed control knob (1).
Turn the speed control knob clockwise to increase
blower speed – counterclockwise to decrease
speed.
COOKTOP LIGHTING (HALOGEN)
Use the on/off rocker switch (3) to turn the halogen
lights ON or OFF.
15. OPERATION
1) B
LOWER SPEED CONTROL KNOB
2) ON/OFF
BLOWER SWITCH
3) H
ALOGEN LIGHT SWITCH
HEAT SENTRY™
This hood is equipped with a Heat Sentry™ thermostat. This thermostat is a device that will turn
on the blower if it senses excessive heat above the cooking surface.
1) If blower is OFF - it turns blower ON to the last selected speed.
2) If blower is already ON speed will remain the same.
When the temperature level drops to normal, the blower will return to its original setting.
The HEAT SENTRY can start the blower during a range top fire or other excessive
heat situations even if the hood is turned off. In this case, it is impossible to turn
the blower OFF using control panel switch. To stop the blower, set the main
power switch located behind the baffle filters in OFF position, if it is possible to
do safely.
WARNING

LINE
NEUTRAL
GROUND
120 VAC
LAMP
LAMP
SWITCH
LAMP
LAMP
COLOR CODE
HE0136A
BLK BLACK
BLU BLUE
BRN BROWN
GRY GREY
ORA ORANGE
RED RED
WHT WHITE
YEL YELLOW
WHT
WHT
WHT
WHT
WHT
WHT
WHT
YEL
YEL
YEL
BLK
BLK BLK
MAIN
SWITCH
FAN SWITCH
FAN SWITCH
OR
RED RED
HEAT SENTRY
THERMOSTAT
GRY
GRY
BLU
WHT
ORA
BLK
A
B
1
2
3
4
BLU
WHT
WHT
ORA
BLK
BLU
WHT
ORA
BLK
WHT
M
M
BLU
WHT
ORA
BLK
RED
GRY
BRN
BLU
WHT
WHT
ORA
BLK
BLU
WHT
ORA
BLK
RED
GRY
BRN
YEL
BLK
16. WIRING DIAGRAM
17. WARRANTY
ONE-YEAR LIMITED WARRANTY FOR BEST PRODUCTS
Broan-NuTone LLC (Broan-NuTone) warrants to the original consumer purchaser of Best products that such
products will be free from defects in materials or workmanship for a period of one year from the date of original
purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED
TO, IMPLIED WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
During this one-year period, Broan-NuTone will, at its option, repair or replace, without charge, any product or
part which is found to be defective under normal use and service.
THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS, TUBES, HALOGEN AND
INCANDESCENT BULBS, FUSES, FILTERS, DUCTS, ROOF CAPS, WALL CAPS AND OTHER ACCESSORIES
FOR DUCTING. This warranty does not cover (a) normal maintenance and service or (b) any products or parts
which have been subject to misuse, negligence, accident, improper maintenance or repair (other than by
Broan-NuTone), faulty installation or installation contrary to recommended installation instructions.
The duration of any implied warranty is limited to the one-year period as specified for the express warranty.
Some states or provinces do not allow limitation on how long an implied warranty lasts, so the above limitation
may not apply to you.
BROAN-NUTONE’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN-NUTONE’S OPTION, SHALL BE
THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. BROAN-NUTONE
SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT
OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE. Some states or provinces do not
allow the exclusion or limitation of incidental or consequential damages, so the above limitation or
exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state
or province to another. This warranty supersedes all prior warranties.
To qualify for warranty service, you must (a) notify Broan-NuTone at the address or telephone number stated
below, (b) give the model number and part identification and (c) describe the nature of any defect in the product
or part. At the time of requesting warranty service, you must present evidence of the original purchase date.
In USA - Best
®
;
926 W. State Street, Hartford, WI 53027 (800-558-1711)
In Canada - Best
®
;
550 Lemire Blvd., Drummondville, QC, Canada, J2C 7W9 (866-737-7770)
www.BestRangeHoods.com