IN-LINE BLOWERS
READ AND SAVE THESE INSTRUCTIONS
MODELS ILB9 ILB11
Page 1
!
FOR DOMESTIC COOKING ONLY
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 the 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 a qualified
person(s) 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
guideline 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. T o reduce the risk of fire, use only metal ductwork.
8. If this unit is to
as appropriate for the application and be connected to a GFCI
(Ground Fault Interrupter) - protected branch circuit.
9. Never place a switch where it can be reached from a tub or
shower.
10. This unit must be grounded.
TO REDUCE THE RISK OF A RANGE TOP GREASE FIRE:
1. 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.
2. Always turn hood ON when cooking at high heat or when flambeing food (i.e. Crepes Suzette, Cherries Jubilee, Peppercorn Beef
Flambe’).
3. Clean ventilating fans frequently. Grease should not be allowed
to accumulate on fan or filter.
4. Use proper pan size. Always use cookware appropriate for the
size of the surface element.
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 - violent
steam explosion will result.
be inst
alled over a tub or shower, it must be marked
!
WARNING
4. Use an extinguisher ONLY if:
A. You know you have a Class ABC extinguisher and you already
know how to operate it.
B. The fire is small and contained in the area where it started.
C. The fire department is being called.
D. Yo u can fight the fire with your back to an exit.
* Based on “Kitchen Fire Safety Tips” published by NFPA.
CAUTION
1. Fo r 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. If ventilator is installed in an unconditioned space (such
as an attic): Surround the ventilator with thermal insulation - to
minimize possible condensation.
4. Please read specification label on product for further information
and requirements.
TABLE OF CONTENTS
This manual is divided into sections as follows:
“TYPICAL INSTALLATION”
This section shows a common installation.
- Mounting (New Frame Construction)
- Mounting (Existing Frame Construction)
- Mounting Using Hanger Kit (included)
- Ducting (Horizontal blower discharge)
- Wiring
“MOUNTING OPTIONS”
“WIRING PLATE POSITION”
“DUCTING OPTIONS”
- Blower Discharge Positions
- Ducting (Vertical blower discharge)
“USE AND CARE”
“SERVICE PARTS”
“WARRANTY”
Installer: Leave this manual with
the homeowner.
Homeowner: Use and Care
information on page 4.
!
TYPICAL INSTALLATION
MODELS ILB9 ILB11
Page 2
TYPICAL INSTALLATION
MOUNTING (New Frame Construction)
10” ROUND DUCT
(OUTLET)
GRILLE NUT
(Install into square
holes in housing)
Ventilator
factory-shipped
in straight-through
discharge position.
ACCESS
PANEL
SCREW
8” X 12” TO
10” ROUND
TRANSITION
(MALE)
ACCESS PANEL
Factory-shipped unit installed in new construction.
8” X 12” TO
10” ROUND
TRANSITION
(FEMALE)
10” ROUND
MOUNTING
BRACKETS
(24” centers
DUCT
(INTAKE)
CEILING
JOIST
shown)
MOUNTING USING HANGER KIT (included)
8” X 12” TO
10” ROUND
TRANSITION
(FEMALE)
HANGER
KIT CHAIN
HANGER KIT
EYE-BOLT
8” X 12” TO
10” ROUND
TRANSITION
(MALE)
10” ROUND
DUCT
(OUTLET)
square holes in
HANGER
KIT BOLT
& WASHER
EXTENSION
SPRING
10” ROUND
DUCT (INTAKE)
HANGER
KIT NUT &
WASHER
MOUNTING
BRACKET
GRILLE NUT
(Install into
housing)
MOUNTING (Existing Frame Construction)
8” X 12” TO 10” ROUND
TRANSITION (FEMALE)
8” X 12” TO
10” ROUND
TRANSITION
(MALE)
10” ROUND
DUCT
(OUTLET)
CEILING
JOIST
(24” cen-
ters
shown)
Ventilator factory-shipped
in straight-through
discharge position.
PANEL SCREW
Factory-shipped unit installed in existing construction.
10” ROUND
DUCT (INTAKE)
MOUNTING
BRACKETS
ACCESS
MOUNTING
SCREWS
GRILLE NUT
(Install into
square
holes in hous-
ing)
ACCESS
PANEL
IMPORTANT: Remove shipping tape from damper
Remove the shipping tape from the damper flap and make sure that
damper flap opens and closes freely inside the ductwork. Use duct
tape to make ductwork connections secure and air-tight.
ACCESS
PANEL
ACCESS
PANEL SCREW
Blower factory-shipped in straight-through
discharge position.
DUCTING (Horizontal blower discharge)
ROOF CAP
10”
ROUND
DUCT
8” X 12” TO 10” ROUND
TRANSITION (FEMALE)
Two ways to connect ductwork to a factory-shipped unit.
8” X 12” TO
10” ROUND
TRANSITION
(MALE)
10”
ROUND
DUCT
WALL
10” ROUND
ELBOW
CAP
MODELS ILB9 ILB11
WIRING
BLACK
TO
BLACK
GROUND TO
WIRING PLATE
WHITE
TO
WHITE
120 VAC LINE IN
(from range hood)
EDGE
OF HOUSING
WIRING
PLATE
Ventilator can be wired from outside of housing.
Use UL approved connectors to wire per local codes.
MOUNTING OPTIONS
¼-20 hex nuts secure mounting brackets to housing. Loosen and
re-tighten or remove and replace nuts as necessary for desired
mounting bracket position.
WIRING PLATE POSITION
VERTICAL
POWER CABLE
CONNECTION
HORIZONTAL POWER
CABLE CONNECTION
Wiring plate mounts to side or top of housing.
DUCTING OPTIONS
BLOWER DISCHARGE POSITIONS
MOVABLE
PANEL
DUCT
CONNECTOR
(outlet)
Housing
rotated & movable panel covers previous
open side.
CONNECTOR
Page 3
DUCT
(outlet)
1
Factory-Shipped
Straight-Through
Discharge
22"
1
MAX.
Mounting brackets in
factory-shipped position mounted directly to joists.
(Outlet parallel to joists.)
(New construction)
Housing Con-
verted to Right-
Angle Discharge
18"
1½"
2½"
Mounting brackets ipped
over and mounted to ad-
ditional framing.
(Outlet vertical.)
(New or Existing construction)
Factory-Shipped
8
/
"
Straight-Through
Discharge
18"
Mounting brackets ipped
over and mounted to ad-
ditional framing.
(Outlet perpendicular to joists.)
(New or Existing construction)
to
Factory-Shipped
Straight-Through
Discharge
22"
Mounting brackets ipped
over and mounted to top of
housing. Housing secured
with cables.
(Outlet parallel to joists.)
(New or Existing construction)
1½"
to
2½"
MOVABLE
PANEL
DUCT
CONNECTOR
(intake)
Ventilator shown in
straight-through discharge
position. (Factory shipped)
DUCT
CONNECTOR
(intake)
Ventilator shown in right-
angle discharge position.
(Change movable panel to
(Change to this
location)
new location as shown.)
DUCTING (Vertical blower discharge)
8” X 12” TO
10” ROUND
TRANSITION
(MALE)
8” X 12” TO 10”
ROUND
TRANSITION
(FEMALE)
10” ROUND
DUCT
Typical ductwork connection to a ventilator converted to
right-angle discharge.
ROOF CAP
10” ROUND
DUCT
USE AND CARE
Follow wiring instructions packed with range hood, and adhere to
all local and state codes, and the National Electrical Code.
WARNING: To reduce the risk of electric shock,
disconnect from power supply before servicing.
MODELS ILB9 ILB11
Page 4
To clean blower assembly: Remove access panel, unplug blower
from housing, remove blower mounting nuts, and carefully remove
blower from housing. Use appropriate vacuum attachment or a soft
cloth and mild soap or detergent to clean blower discharge area and
wheel. DO NOT ALLOW WATER TO ENTER MOTOR. Make sure
blower assembly is completely dry before reinstalling.
Motor is permanently lubricated. Do not oil or disassemble motor.
29
SERVICE PARTS
KEY NO. PART NO. DESCRIPTION
1 97014853 Damper Flap
2 99150415 Screw, #8B x ¼* (16 req.)
3 98009520 Duct Connector (2 req.)
4 97014784 Housing Assembly
5 97014728 Mounting Bracket (2 req.)
6 99150591 Mounting Screw, #10-12 x .625 (4 req.)
7 97006142 Wiring Harness
8 99150471 Ground Screw, #10-32 x ½* (2 req.)
9 98005512 Wiring Adapter Plate
10 99420470 Access Panel Nut (4 req.)
11 98009531 Movable Housing Panel
12 93150487 Screw, #10-24 x .375* (8 req.)
13 98005513 Outlet Box Cover
14 99400035 Strain Relief Bushing
15 97014788 Motor Bracket
16 99260477 Whiz Nut, ¼-20* (11 req.)
17 99200202 Screw, ¼-20 x ½* (5 req.)
18 97014785 Blower Scroll
19 99080490 Motor (ILB9)
99080491 Motor (ILB11)
20 93260447 Nut, Hex Flange 5/16-18* (5 req.)
21 98009516 Support Bracket
22 99020286 Blower Wheel
23 98009514 Inlet Ring
24 99150417 Screw, #8-18 x ¼* (5 req.)
25 98009513 Scroll Support Channel
+ 97016794 Blower Assembly Complete (ILB9)
(Includes Key Nos. 15 thru 25)
+ 97016795 Blower Assembly Complete (ILB11)
(Includes Key Nos. 15 thru 25)
26 98009532 Access Cover
27 99150472 Access Cover Screw (4 req.)
28 97016791 Hanger Kit
29 99610015 Transition, 8” x 12” to 10” Round, Male
30 99610028 Transition, 8” x 12” to 10” Round, Female
31 97014597 Rough-In Kit
Order replacement parts by PA RT NO. - not by KEY NO.
* Standard hardware - may be purchased locally.
+ Not shown assembled.
1
3
7
2
8
9
6
16
15
19
BLOWER
ASSEMBLY
17
20
2
4
30
28
5
12
3
16
2
10
14
11
22
23
13
18
24
25
21
31
16
17
26
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 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, Wisconsin 53027 800-558-1711 In Canada: BEST® , 550 Lemire Blvd., Drummondville (Quebec) Canada J2C 7W9 866-737-7770 www.BestRangeHoods.com
ONE YEAR LIMITED WARRANTY FOR BEST PRODUCTS
27
99043703E