2
Losone Select Ceiling Mount Ventilation
Models: L100, L150, L200, L250 & L300
TYPICAL INSTALLATION
TYPICAL INSTALLATION
CEILING JOIST
(16” centers shown)
ROUND DUCT*
GRILLE
(Install after
ceiling is
finished.)
MOUNTING
SCREW
GRILLE
SCREW
Blower factory-shipped
in horizontal
discharge position.
Mounting brackets
factory-shipped in
position for ½”
ceiling material.
ADDITIONAL
1½” FRAMING
WIRING
PLATE
WHITE
TO
WHITE
BLACK
TO
BLACK
TOP / BACK
OF HOUSING
120 VAC LINE IN
GROUND TO
WIRING PLATE
ROOF CAP
ROUND
ELBOW*
ROUND
DUCT*
WALL
CAP
CEILING
ROUND DUCT*
GRILLE
SCREW
FINISHED
MATERIAL
GRILLE
(Polymeric shown)
CEILING JOIST
(16” centers
shown)
(wide side down)
opposite sides
MOUNTING
BRACKETS
(Attached to
of housing &
upside-down,
so housing is
flush with
finished ceiling)
MOUNTING (New Frame Construction)
WIRING
DUCTING (Horizontal blower discharge)
MOUNTING (Existing Frame Construction)
Factory-shipped unit installed in new construction.
Ventilator can be wired from outside of housing.
Use UL approved connectors to wire per local codes.
Two ways to connect ductwork to a factory-shipped unit.
Factory-shipped unit installed in new construction.
*L100 & L150 use 6” round duct.
*L200, L250 * L300 use 8” round duct.
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.
Remove shipping ring from blower inlet
Remove the shipping ring from the blower inlet before operating
the ventilator.
*L100 & L150 use 6” round duct.
*L200, L250 * L300 use 8” round duct.
