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.
y
yyy
21½"
Mounting brackets in
factory-shipped position.
(Outlet parallel to joists.)
(New construction)
yyy yyy
12¼"
Mounting brackets mounted
to outlet sides of housing.
(Outlet perpendicular to joists.)
(New construction)
yy
yyy
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.
@@@
@@@
@@@
@@@
yyy @@ @@ @@ @@ @@ @@ yy
@@@
@@@
yyy
@@@
@@@
@@@
@@@
@@@
@@@
1
1
/
"
8
MAX.
yy
21½"
Mounting brackets flipped
over and mounted to outlet
sides of housing.
(Outlet parallel to joists.)
(Existing construction)
y
21½"
Mounting brackets flipped
over to give approx. 1"
more clearance.
(Outlet parallel to joists.)
(New construction)
9
1
/
" to
2
10
1
/
"
2
yy
21½"
Mounting brackets flipped
over and mounted to top of
sides of housing.
(Outlet parallel to joists.)
(New or existing construction)
VERTICAL
CONNECTION
DUCTING OPTIONS
BLOWER DISCHARGE POSITIONS
DUCT CONNECTOR
1½"
to
yyy
2½"
1
1
/
"
BLOWER
2
to
2
1
/
"
2
Blower and duct connector
yyy
in right angle discharge
DUCTING (Right angle blower discharge)
10"
ROUND
10
3
/
" to
4
DUCT
11
3
/
"
4
yyy
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.
POWER
To clean blower assembly: Remove access panel, unplug blower
CABLE
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.
Change
blower
& duct
connector
positions
for right
angle
discharge.
position.
ROOF CAP
right angle discharge.
WARNING: To reduce the risk of electric shock,
disconnect from power supply before servicing.
MODELS
L400KL • L500KL
Page 3
DUCT CONNECTOR
BLOWER
Blower and duct connector
in straight-through dis-
charge position. (Factory
shipped)
4½" X 18½"
TO 10" ROUND
TRANSITION