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.
21½"
INSTALLATION FROM ABOVE FINISHED CEILING
Mounting brackets in
factory-shipped position.
(Outlet parallel to joists.)
(New construction)
12¼"
INSTALLATION WITH DUCTWORK
Mounting brackets mounted
RUNNING ACROSS JOISTS
ADUSTABLE FOR VARIOUS CEILING THICKNESSES
to outlet sides of housing.
(Outlet perpendicular to joists.)
(New construction)
9
10
21½"
Mounting brackets mounted
to top of sides of housing.
(Outlet parallel to joists.)
(New or existing construction)
WIRING OPTIONS
WIRING PLATE
POSITION
HORIZONTAL POWER
CABLE CONNECTION
Wiring plate mounts to side or top of housing.
/
1
"
1
8
MAX.
21½"
Mounting brackets flipped
over and mounted to outlet
sides of housing.
(Outlet parallel to joists.)
(Existing construction)
21½"
Mounting brackets flipped
over to give approx. 1"
more clearance.
(Outlet parallel to joists.)
(New construction)
/
" to
1
2
/
"
1
2
21½"
Mounting brackets flipped
ADUSTABLE FOR VARIOUS CEILING THICKNESSES
over and mounted to top of
sides of housing.
(Outlet parallel to joists.)
(New or existing construction)
VERTICAL
POWER CABLE
CONNECTION
L400 SERIES • L500 SERIES • L700 SERIES
DUCTING OPTIONS
BLOWER DISCHARGE POSITIONS
DUCT CONNECTOR
1½"
to
2½"
/
1
"
1
2
BLOWER
to
2
/
"
1
Blower and duct connector
2
in horizontal discharge
position. (Factory shipped)
DUCTING (Vertical blower discharge)
10"
ROUND
10
/
" to
3
DUCT
4
11
/
"
3
4
Typical ductwork connection to a ventilator converted to
USE AND CARE
Ventilator is designed for continuous operation. If desired, it may
be controlled using an on/off switch or a solid-state, variable speed
control. Follow wiring instructions packed with control, 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.
To clean grille: Use appropriate vacuum attachment or remove
grille and clean with a soft cloth and mild soap or detergent. Dry
grille thoroughly before reinstalling.
To clean blower assembly: Remove grille, 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.
LOSONE SELECT
DUCT CONNECTOR
Change
blower
& duct
connector
positions
for vertical
discharge.
BLOWER
Blower and duct connec-
tor in vertical discharge
position.
ROOF CAP
4½" X 18½"
TO 10" ROUND
TRANSITION
vertical discharge.
®
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