![](/html/46/4668/4668e1dbcd9c91eeecbfa9f3c6ef94ed55bde3390c0a346fd2e961646dfe8a64/bg1.png)
IN-LINE BLOWER
READ AND SAVE THESE INSTRUCTIONS
Page 1
MODEL 808331
!
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 or your distributor.
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. To reduce the risk of fire, use only steel ductwork.
8. If this unit is to be installed over a tub or shower, it must be marked
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.
!
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. You can fight the fire with your back to an exit.
* Based on “Kitchen Fire Safety Tips” published by NFPA.
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. 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)
“ATTACH POWER CORD TO HOOD”
“USE AND CARE”
Installer: Leave this manual with
the homeowner.
!
Homeowner: Use and Care
information on page 4.
![](/html/46/4668/4668e1dbcd9c91eeecbfa9f3c6ef94ed55bde3390c0a346fd2e961646dfe8a64/bg2.png)
Page 2
TYPICAL INSTALLATION
MOUNTING (New Frame Construction)
10” ROUND DUCT
Blower factory-shipped
in horizontal
discharge position.
Factory-shipped unit installed in new construction.
4½” X 18½”
TO 10” ROUND
TRANSITION
MOUNTING
SCREW
Mounting brackets
factory-shipped in
position for ½” ceil-
ing material.
(24” centers
10” ROUND
4½” X 18½”
TO 10” ROUND
TRANSITION
CEILING
JOIST
shown)
DUCT
TYPICAL INSTALLATION
MOUNTING USING HANGER KIT (included)
HANGER
KIT BOLT
& WASHER
EXTENSION
SPRING
HANGER
KIT CHAIN
HANGER
KIT
EYE-BOLT
4½” X 18½”
TO 10”
ROUND
TRANSI-
TION
10” ROUND
DUCT
(OUTLET)
10” ROUND
DUCT (INTAKE)
HANGER
KIT NUT &
WASHER
MOUNTING
BRACKET
GRILLE NUT
(Install into
square holes in
housing)
MOUNTING (Existing Frame Construction)
4½” X 18½” TO 10”
ROUND TRANSITION
10” ROUND
DUCT
MOUNTING
SCREW
4½” X 18½”
TO 10” ROUND
TRANSITION
10” ROUND
DUCT
MOUNTING
BRACKETS
(Attached to
opposite sides
of housing &
upside-down,
so housing is
flush with
finished ceiling)
2 X 4 FRAMING
(wide side down)
CEILING JOIST
(24” centers
shown)
ACCESS
PANEL
ACCESS
PANEL SCREW
Blower factory-shipped in straight-through
discharge position.
DUCTING (Horizontal blower discharge)
ROOF CAP
10”
ROUND
DUCT
4½” X 18½”
TO 10” ROUND
TRANSITION
Two ways to connect ductwork to a factory-shipped unit.
ROUND
DUCT
10”
ROUND
ELBOW
10”
WALL
CAP
Blower factory-shipped in straight-through
discharge position.
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.
![](/html/46/4668/4668e1dbcd9c91eeecbfa9f3c6ef94ed55bde3390c0a346fd2e961646dfe8a64/bg3.png)
Page 3
WIRING
BLACK
TO
BLACK
GROUND TO
WIRING PLATE
WHITE
TO
WHITE
TOP / BACK
OF HOUSING
WIRING
PLATE
120 VAC
LINE IN
(from
range
hood)
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
DUCT CONNECTOR
DUCT CONNECTOR
1
8
/
1
MAX.
21½"
Mounting brackets in
factory-shipped position.
(Outlet parallel to joists.)
(New construction)
12¼"
Mounting brackets mounted
to outlet sides of housing.
(Outlet perpendicular to joists.)
(New construction)
1
9
/
2
" to
1
10
/
2
"
21½"
Mounting brackets ipped
over and mounted to outlet
sides of housing.
(Outlet parallel to joists.)
(Existing construction)
21½"
Mounting brackets ipped
over to give approx. 1”
more clearance.
(Outlet parallel to joists.)
(New construction)
"
10
11
1½"
2½"
1
2
3
/
to
1
/
to
1
/
4" to
3
/
4"
Change
blower
& duct
connector
positions
for vertical
discharge.
BLOWER
2
"
2
"
Blower and duct connec-
tor in horizontal discharge
position. (Factory shipped)
BLOWER
Blower and duct connec-
tor in vertical discharge
position.
DUCTING (Vertical blower discharge)
ROOF CAP
10”
ROUND
DUCT
4½” X 18½”
TO 10” ROUND
TRANSITION
21½"
Mounting brackets mounted
to top of sides of housing.
(Outlet parallel to joists.)
(New or existing construction)
21½"
Mounting brackets ipped
over and mounted to top of
sides of housing.
(Outlet parallel to joists.)
(New or existing construction)
Typical ductwork connection to a ventilator converted to
vertical discharge.