Best IBF4I36SB User Manual

Model IBF4I36SB

In USA - BEST® Hartford, Wisconsin

REGISTER YOUR PRODUCT ONLINE AT : www.BestRangeHoods.com/register

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READ AND SAVE THESE INSTRUCTIONS

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INTENDED FOR DOMESTIC COOKING ONLY

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON(S)
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 switch 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), 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 other solid-state speed control device.

8. To reduce the risk of fire, use only steel ductwork.

9. This unit must be grounded.

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 cooking flaming foods

(i.e. Crêpes Suzette, Cherries Jubilee, Peppercorn Beef Flambé).

c) Clean ventilating fans frequently. Grease should not be allowed to accumulate

on fan or filters.

d) Use proper pan size. Always use cookware appropriate for the size of the
surface element.

TO REDUCE THE RISK OF INJURY TO PERSON(S) 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.

- 2 -

!

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 know you have 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.

CAUTION

1. For indoor use only.

2. For general ventilating use only. Do not use to exhaust hazardous or explosive

materials and vapors.

3. To avoid motor bearing damage and noisy and/or unbalanced impeller, keep

drywall spray, construction dust, etc. off power unit.

4. Do not use over cooking equipment greater than 60,000 BTU/hr. as the blower

motor will shut down intermittently.

5. 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 cool down. If
the motor continues to shut off and restart, have the hood serviced.

6. The bottom of the hood MUST NOT BE LESS than 24” and at a maximum of

30” above cooktop for best capture of cooking impurities.

7. Two installers are recommended because of the size of this hood.

8. To reduce risk of fire and to properly exhaust air, be sure to duct air outside. Do

not exhaust air into spaces within walls or ceilings or into attics, crawl spaces,
or garages.

9. Be careful when installing the decorative flue and hood, they may have sharp

edges.

10. Please read specification label on product for further information and

requirements.

- 3 -

OPERATION

The hood is operated using the push buttons on the front panel.

Speed

Lamp

2 3 4

1

TIME/DELAY (2 Functions)

TIME SETTING
This button is used to set time when lighting and blower are not in use. Time is

displayed in a 12-hour cycle. To set time, press the push button (1) for 3 seconds.
The first two digits will flash. Use the blower push button (3) to increase, and the
lighting pushbutton (2) to decrease. Press the time/delay push button (1) again. The
last two digits will flash. Use the blower push button (3) to increase and the lighting
push button (2) to decrease. Press the time/delay button (1) again to confirm and
exit time setting mode.

DELAY SETTING
When blower is in use, this button is used as the delay off setting button. To set

delay, press the push button (1). The delay is factory set at 5 minutes, but can be
set from 1 up to 60 minutes. Use blower push button (3) to increase, and lighting
push button (2) to decrease. Countdown will be displayed on the LCD screen,
blower symbol will be activated, and the button (1) backlight will flash. Blower
will continue to operate for the programmed time and then will stop automatically
(delay-off setting does not affect lighting as it works independently). To cancel
delay function, press time/delay push button (1) again. The blower will continue
to operate and won’t stop until ON/OFF push button (4) is pressed. To turn delay
function and blower OFF at once, press ON/OFF push button (4). NOTE: Delay will
be reset if blower speed is modified during delay setting mode.

Timer

Power

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LIGHTING

Press the lighting push button (2) once to turn the LCD screen on. To turn the
lights on, press the lighting push button (2) once more. Press it again to turn the
lights OFF. The LCD screen will turn off automatically after 15 seconds of inactivity
(blower and/or lights).

BLOWER

The blower push button (3) turns the blower on to one of three speed settings: LOW,
MEDIUM or HIGH. Press the blower (3) or ON/OFF (4) push button once to turn
the LCD screen on. Press the blower (3) or ON/OFF (4) push button once more to
turn the blower on at the last selected speed. Blower symbol will be activated. To
change the blower speed, press the blower push button (3) until the desired speed
is obtained. Press the ON/OFF push button (4) to turn the blower OFF. The last
speed used will be memorized. NOTE: When blower is turned on, 100% of power
level is activated for 1 to 2 seconds. It will then operate at the previous setting.

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LIGHT BULBS

CAUTION
Bulbs may be hot. Always allow bulbs to
cool down before removing them.

This range hood requires four halogen bulbs
(Type JC, 12V, 20W Max, G-4 Base).

To change bulbs:

1. Remove light bulb cover by gently pushing

it upward and turning it counterclockwise.

2. Replace bulb.

3. Re-install light bulb cover by gently pushing it upward and turning it clockwise.

LIGHT BULB

COVER

CLEANING AND MAINTENANCE

Proper maintenance of the Range Hood will assure proper performance of the unit.

Motor

The motor is permanently lubricated and never needs oiling. If the motor bearings make
excessive or unusual noise, replace the motor with the exact service motor. The impeller
should also be replaced.

Grease Filter

The grease filter should be cleaned frequently. Use a warm detergent solution. Grease
filter is dishwasher safe.

Clean all-metal filters in the dishwasher using a non-phosphate detergent. Discoloration of
the filter may occur if using phosphate detergents, or as a result of local water conditions ­but this will not affect filter performance. This discoloration is not covered by the warranty.

See “INSTALL FILTERS” section for removal and installation instructions.

Non-ducted Recirculation Filter

The non-ducted recirculation filter should be changed every 6 months. Replace more
often if your cooking style generates extra grease, such as frying and wok cooking. See
“INSTALL FILTERS” section for removal and installation instructions.

Stainless Steel Cleaning

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construc-

tion residues reach the hood. During
construction/renovation, cover the range
hood to make sure no dust sticks to the
stainless steel surface.

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.

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INSTALL THE DUCTWORK (Ducted Hoods Only)

1. Decide where the ductwork
will run between the hood
and the outside.

ROOF CAP

6” ROUND

DUCT

2. A straight, short duct
run will allow the hood to
perform most efficiently.

3. Long duct runs, elbows
and transitions will reduce
the performance of the
hood. Use as few of them
as possible. Larger ducting
may be required for best
performance with longer

DECORATIVE

FLUES

HOOD

6” ROUND

ELBOWS

DUCT CENTER LINE
(1-3/4” to rear of hood

centerline)

duct runs.

4. Install wall cap or roof
cap. Connect round metal
ductwork to cap and work
back towards the hood

24” TO 30” ABOVE

COOKING SUFACE

HOOD

CENTER

LINE

location. Use duct tape to
seal the joints between
ductwork sections.

MEASURE THE INSTALLATION

The minimum hood distance above cooktop MUST NOT BE LESS than 24”.

EAVE
VENT

A maximum of 30” above cooktop is highly recommended for best capture of
cooking impurities.

Distances over 30” are at the installer and users discretion; providing that the ceil­ing height permits.

NOTE:

On 7-ft 8-in. ceilings

Hood distance above cooktop is:
Minimum 24”, Maximum 30” (for ducted discharge).
Minimum 24”, Maximum 29” (for non-ducted discharge).

On 8-ft. ceilings

Hood distance above cooktop is:
Minimum 24”, Maximum 30” (for both ducted and non-ducted discharge).

On 9-ft. ceilings

Hood distance above cooktop is:
Minimum 30”, Maximum 30” (for both ducted and non-ducted discharge).

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PREPARE THE HOOD

Unpack hood and check contents. You should receive:
1 - Hood
1 - Decorative Flue Assembly (2 pcs.)
1 - Damper / Duct Connector
1 - Ceiling Mounting Plate
8 - Angle Brackets
3 - Aluminum Grease Filters (installed in hood)
1 - Parts Bag containing:
8 - Mounting Screws (M6 x 40mm Pan Head)
46 - Machine Screws (M4 x 10mm Pan Head)
20 - Serrated Flange Nuts (M4)
8 - Sheet Metal Screws (M4 x 8mm Phillips Head)
3 - Wire Nuts

M6 x

40 mm

Serrated

M4

Flange

Nut

M4 x

10 mm

Machine

Screw

M4 x 8 mm

Sheet Metal

Wire Nut

- 7 -

INSTALL CEILING SUPPORT

1. At hood location install 2 x
4 cross framing between
ceiling joists using dimensions
shown. Make sure framing

CEILING

JOISTS

6” ROUND DUCTWORK

8

¼

”

does not interfere with
electrical outlet box opening
in ceiling mounting plate.

2. Install house wiring and
ductwork.

3. Finish ceiling surface. Be sure
to mark the location of the
ceiling joists & cross framing.
Bring house wiring through

CROSS

FRAMING

CEILING

MOUNTING

PLATE

FRON T

HOUSE

WIRING

finished ceiling.

4. Remove cover from electrical
outlet box on ceiling
mounting plate. Pull house

(8) M6 x 40mm

WOOD

SCREWS

ELECTRICAL

OUTLET

BOX

wiring through hole on top
of mounting plate and into electrical outlet box. Secure house wiring cable to
mounting plate / electrical box with appropriate connector.

5. Install ceiling mounting plate with the side marked “front” at the desired hood
location. Secure using (8) M6 x 40mm wood screws. Make sure screws are
driven into the center of the framing for maximum strength.

PREPARE THE HOOD

1. Place the hood on flat
surface with protection
to insure the hood is not
damaged.

2. Attach the damper / duct
connector to the hood with
(4) M4 x 8mm pan head
sheet metal screws.

(4) M4 x 8mm

PAN HEAD

SHEET METAL

SCREWS

- 8 -

DAMPER / DUCT

CONNECTOR

INSTALL THE HOOD (Ducted Installation Only)

1. Assemble (4) angle
brackets to the lower hood
mounting locations using
(8) M4 x 10mm pan head
machine screws (2 for each
angle bracket).

(8) M4 x 10mm

PAN HEAD

MACHINE

SCREWS

2. Determine dimension “H”
based upon ceiling height
and height of hood installa­tion above cooktop:

7-FT. 8-IN. CEILING

(16) M4 x 10mm

PAN HEAD

MACHINE

SCREWS &

(16) M4

SERRATED

FLANGE NUTS

Hood 24” above cooktop
H = 32”
Hood 30” above cooktop
H = 30”

8-FT. CEILING

7

1

/

16

”

(8) M4 x 10mm

PAN HEAD

MACHINE

SCREWS

Hood 24” above cooktop
H = 36”
Hood 30” above cooktop
H = 30”

9-FT. CEILING

Hood 30” above cooktop
H = 42”

3. Attach the upper set of (4) angle brackets to the outside of the lower angle
brackets according to dimension “H”. Use (16) M4 x 10mm pan head machine
screws and (16) M4 serrated flange nuts (4 at each angle bracket connection).

4. Attach the angle bracket assemblies to the upper hood mounting locations
using (8) M4 x 10mm pan head machine screws (2 for each angle bracket).

H

- 9 -

5. Measure the length of 6”

round metal duct required
from the damper / duct
connector to the ductwork
rough-in in the ceiling.
Connect the duct to the
damper / duct connector
and seal with duct tape.

6. Remove the protective

coating from the inner the
flue.

FOR CEILING HEIGHTS

7-FT. 8-IN. & 8-FT. ONLY:
Turn the inner flue so
that the louvers are at the
bottom.

FOR ALL CEILING

HEIGHTS:
Carefully slide the inner
flue down into the outer
flue. Slide the flues over
the angle brackets. Make
sure the side marked “front”
faces the control side of
the hood. Feed the power
cable up through the flues.

METAL

DUCT

LOUVERS

METAL

DUCT

DAMPER /

DUCT

CONNECTOR

FRONT

INNER

FLUE

POWER

CABLE

OUTER

FLUE

DUCT

TAPE

7. Attach the hood assembly

to the ceiling bracket using
(8) M4 x 10mm machine
screws (2 for each support
leg).

8. Connect metal duct to

ceiling duct and seal with
duct tape.

9. Connect power cable to

house wiring inside of
electrical outlet box. Black
to Black, White to White,
and Green to Green or
Bare wires. Secure power
cable to wiring box with
appropriate connector and
re-attach outlet box cover.

(8) M4 x 10mm

PAN HEAD

MACHINE
SCREWS

- 10 -

POWER

CABLE

10. Slide the inner flue up to

the ceiling and secure with
(4) M4 x 8mm sheet metal
screws.

11. Remove the protective

coating from the hood and
the outer flue.

(4) M4 x 8mm

SHEET METAL

SCREWS

INSTALL THE HOOD (Non-Ducted Installation Only)

NOTE:

Non-ducted installations
require Non-Duct
kit; model ANK

IBF4

(purchased separately).
Do not use plastic or rigid

metal duct.

FRONT

NON-DUCT

PLENUM

NON-DUCT PLENUM

COLLAR

NON-DUCTED
RECIRCULATION
FILTER

8 MOUNTING
SCREWS
(M4 x 8
Pan Head
Sheet Metal)

2 TIE

WRAPS

FLEXIBLE DUCT

DAMPER

FLAPS

1. Remove the damper flaps from

the damper / duct connector and
discard flaps.

FRONT

(4) M4 x 8mm

SHEET METAL

SCREWS

2. Attach non-duct collar to non-duct
plenum using (4) M4 x 8mm sheet
metal screws.

- 11 -

3. Assemble (4) angle
brackets to the lower hood
mounting locations using
(8) M4 x 10mm pan head
machine screws (2 for each
angle bracket).

(8) M4 x 10mm

PAN HEAD

MACHINE

SCREWS

4. Determine dimension “H”
based upon ceiling height
and height of hood installa­tion above cooktop:

7-FT. 8-IN. CEILING

(16) M4 x 10mm

PAN HEAD

MACHINE

SCREWS &

(16) M4

SERRATED

FLANGE NUTS

Hood 30” above cooktop
H = 30”
Hood 29” above cooktop
H = 27”

8-FT. CEILING

7

1

/

16

”

(8) M4 x 10mm

PAN HEAD

MACHINE

SCREWS

Hood 24” above cooktop
H = 36”
Hood 30” above cooktop
H = 30”

9-FT. CEILING

Hood 30” above cooktop
H = 42”

5. Attach the upper set of (4) angle brackets to the outside of the lower angle
brackets according to dimension “H”. Use (16) M4 x 10mm pan head machine
screws and (16) M4 serrated flange nuts (4 at each angle bracket connection).

6. Attach the angle bracket assemblies to the upper hood mounting locations
using (8) M4 x 10mm pan head machine screws (2 for each angle bracket).

H

- 12 -

7. Measure the length of

6” round flexible duct
required from the damper
/ duct connector to the
ductwork rough-in in
the ceiling. Connect the
duct to the damper / duct
connector, secure with
tie wrap and seal with
duct tape.

8. Attach the aluminum

flexible duct to the non­duct plenum collar. Make
sure non-duct plenum
“front” is facing front of
hood. Secure with tie
wrap and seal with duct
tape.

9. Remove the protective

coating from the inner
the flue. Turn the inner
flue so that the louvers
are at the top. Carefully
slide the inner flue down
into the outer flue. Slide
the flues over the angle
brackets. Make sure the
side marked “front” faces
the control side of the
hood. Feed the power
cable up through the
flues.

10. Pull the inner flue up

and attach the non-duct
plenum with collar to
the upper flue using (4)
M4 x 8mm sheet metal
screws.

11. Attach the hood

assembly to the ceiling
bracket using (8) M4 x
10mm machine screws
(2 for each support leg).

12. Connect power cable to

house wiring. Black to
Black, White to White,
and Green to Green
or Bare wires. Secure
power cable to wiring
box with appropriate
connector.

(4) M4 x 8mm

SHEET METAL

SCREWS

NON-DUCT

PLENUM

FLEXIBLE

DUCT

DAMPER /

DUCT

CONNECTOR

(8) M4 x 10mm

PAN HEAD

MACHINE

SCREWS

- 13 -

FRONT

FRONT

INNER

FLUE

POWER

CABLE

OUTER

FLUE

DUCT

TAPE

13. Slide the inner flue up to the

ceiling and secure with (4) M4
x 8mm sheet metal screws.

14. Remove the protective coating

from the hood and the outer
flue.

(4) M4 x 8mm

SHEET
METAL

SCREWS

15. Remove the grease

filters by pulling down
the metal latch tab
and tilting the filters

NON-DUCT

FILTER

MOUNTING

TABS

downward to remove.

16. Install the non-duct

recirculation filter as
shown. Turn mounting
tabs on hood to secure
filter.

1 7. Reinstall grease filters

by aligning rear filter
tabs with slots in the
hood. Pull down the
metal latch tab, push

METAL
LATCH

GREASE

FILTERS

NON-DUCT

RECIRCULATION

FILTER

filter into position and
release. Make sure filters are securely engaged after installation.

WARRANTY

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 MERCHANT ABILITY 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, FUSE, 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
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 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. This
warranty supersedes all prior warranties.

To qualify for warranty service, you must (a) notify Broan-NuTone at the address stated below 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 J2C 7W9 (866-737-7770)
www.BestRangeHoods.com

ONE YEAR LIMITED WARRANTY FOR BEST PRODUCTS

- 14 -

SERVICE PARTS

KEY PART NO. DESCRIPTION QTY.
1 S99528360 Decorative Upper and Lower Flues 1
2 S99528361 Motor / Blower Assembly 1
3 S99526975 Light Socket Assembly 4
4 S99527010 Light Trim Ring / Lens Assembly 4
5 S99527660 User Interface Assembly 1
6 S99527665 Control Board 1
7 S97018908 Aluminum Grease Filters 3
8 S99527023 Non-Duct Recirculation Filter 1
9 S99526983 Damper / Duct Connector 1
10 S99526984 6” Dia. Expandable Flexible Aluminum Duct 1
11 S99528362 Non-Duct Plenum Assembly 1
12 S99528363 Angle Mounting Bracket 8
13 S99528364 Ceiling Mounting Bracket w/ Outlet Box 1
S99527662 Capacitor (not shown) 1
S99527132 Parts Bag (not shown) 1
S99528459 Non-Duct Filter Clips (not shown) 1
S99527011 Transformer (not shown) 1
Order service parts by Part No. - not by Key No.

- 15 -