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Page 2
MODEL 751
INSTALLATION IN A
NEW CONSTRUCTION SITE
PREPARATION
1. Refer to Figure 1. Remove power unit/blower assembly from
housing.
A. Unplug power unit.
B. Remove screw (located next to plug-in receptacle) which holds
power/blower unit mounting plate in place. Save screw.
C. Lift mounting plate at end near the plug-in receptacle until blower
wheel clears the scroll.
D. Remove plate by pulling its tabs out of slots in housing. Set power/
blower unit aside until needed.
MOUNTING THE HOUSING
MOUNTNG USING MOUNTING TABS
Refer to Figure 2.
1. Locate fan housing next to ceiling joist.
2. Use wood screws (not provided) to loosely attach housing to
ceiling joist through the keyhole slots in mounting tabs.
3. Adjust housing so that it will be flush with finished ceiling. For the
grille to fit properly, the housing’s rim must not extend beyond
finished ceiling surface.
4. When housing is properly adjusted, tighten screws in slots.
MOUNTING USING HANGER BARS
Refer to Figure 3.
1. Insert hanger bars in slots provided in housing.
2. Locate fan housing between joists so that the bottom of the
housing is even with the planned finished ceiling. Extend the
hanger bars to the joists.
3. Use screws or nails (not provided) to secure hanger bars to ceiling
joists.
INSTALLING DUCTWORK
1. Refer to Figure 2. Place duct collar over flanges at discharge
opening of fan. Secure collar by snapping tabs into slots in flanges.
2. Run 4” round duct from fan’s discharge opening to the outside
and terminate.
3. Connect duct to fan’s duct collar.
WIRING
All wiring must comply with local codes and unit must be
properly grounded.
1. Run 120vAC house wiring (with ground) from wall switches to
fan location.
2. Insert and secure an approved box connector into wiring entrance
hole.
3. Pull wires through box connector and into junction box. Tighten
box connector.
4. Refer to Figure 4. Connect white wires from the fan and light
receptacles to white (neutral) wire from the supply. Connect black
wire from fan receptacle (black) to wire from fan switch. Connect
blue wire from light receptacle (white) to wire from light switch.
5. Connect the green (or bare) ground wire to the green ground
lead.
B
L
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