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INSTALLATION IN
EXISTING CONSTRUCTION
In an existing, finished building, installation of the Heat-
Vent-Light Combination requires an accessible area (attic or
crawl space) above the planned location. If the location that
has been chosen for installation has a finished floor above it,
be certain there is sufficient space available to install the
housing and make the necessary duct connection.
PLANNING
Review “INSTALLATION IN NEW CONSTRUCTION” and
follow all instructions that apply.
CAUTION: Check the area above the planned location
to make sure that:
(1) Ducting can be installed.
(2) Wiring can be run to the planned location.
(3) No wiring or other obstructions might interfere with
the installation.
INSTALLATION
1. The housing must be mounted between ceiling joists.
2. Refer to Figure 10. Mark ceiling for cutout. Cutout
dimensions: 14
1
⁄
8
" long x 9
7
⁄
8
" wide. Make cutout in ceiling.
3. Follow steps under “PREPARATION” page 1.
4. From above, lower housing into the cutout and secure
hanger brackets. Install duct collar, connect duct, and run
wiring through box connectors.
5. From below, adjust housing so that it is flush with the
finished ceiling.
6. Form below, make wiring connections as shown in figure 6.
7. Replace junction box cover.
8. Insert heater, ventilator, light, and night light plugs into
proper receptacles.
9. install grille, reflector and lens.
FIGURE 8 FIGURE 10
FIGURE 9
HEAT
LENS
(LENS DETACHED
IN DRAWING FOR
ILLUSTRATIVE
PURPOSES)
14
1
⁄
8
"
9
7
⁄
8
"
VENT
WHITE