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INSTALL THE HOUSING
(continued)
Existing Construction
4. Place housing in opening so that its bottom edge is flush
with finished ceiling. Nail to joist through keyhole on both
sides. To ensure a noise-free installation, drive another
пай through the top hole of each mounting bracket.
ADDITIONAL
y
MOUNTING
HOLES
5. Additional mounting holes are provided for installations
where access from above is inconvenient or not possible.
Nail or screw housing directly to joists or framing.
INSTALL THE DUCTWORK
FLUSH
—h
. Snap the damper/duct connector onto housing. Make sure
that tabs on the connector lock into slots in housing. Top
of damper/duct connector should be flush with top of hous-
ing.
2. Connect 4" round duct to damper/duct connector and ex-
tend duct to outside through a roof or wall cap. Check
damper to make sure that it opens freely. Tape all duct
connections to make them secure and air tight.
MODELS
676МТ + 684NT
Page 3
CONNECT THE WIRING
SCHEMATIC WIRING DIAGRAM
BLACK
RECEPTACLE
ON / OFF SWITCH
{purchase separately)
SWITCH BOX
WIRING
PLATE
120 VAC
LINE IN
1. Wire unit following diagram above. Run electrical cable
as direct as possible to unit. Do not allow cable to touch
sides or top of unit after installation is complete.
ATTACH THE GRILLE
1. Squeeze grille
springs together and
insert springs into
slots in motor plate.
NOTE: If desired,
rotate grille 90° and
move springs to
optional tabs.
SLOT IN
El MOTOR PLATE
SPRING
TABS
SPRING
2. Push grille up
against ceiling.
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