by
B A T H O L O G Y
11
Expansion Ventilation Installation
A t m o s p h e r i c 320
1.
2.
3.
Based on the bathroom layout and fixtures,
plan the location of the expansion vent grilles
(2) for the most effective ventilation.
Punch out the keyhole knockouts (if using) and
the electrical knockout if needed (
see figure 6
).
Mount expansion vent housing (1) directly to
the ceiling joist using screws and keyhole slots.
Locator tabs on housing should be flush with
the bottom edge of the ceiling joist for correct
positioning of the unit once ceiling material is
installed (
see figure 1 on page 10
).
OR
Use the expansion vent hanger bars (3) to
suspend the expansion vent housing (1)
between ceiling joists. For correct positioning,
hanger bars (3) should be positioned 13/16"
up from the bottom edge of the ceiling joist.
Tighten anti-slide screws to keep hanger bars
(3) in place. (
see figure 2 on page 10
).
Note: Expansion vent hanger bars (3) can be
used on ceiling joists up to 24" on center.
Note: If ceiling material is thicker than 5/8" the
locator tabs may be removed to allow the grille
collar to be flush with the finished ceiling
material.
Note: Designed for 1-1/8” ceiling material
maximum.
4.
5.
Cut a 6" round hole for the expansion vent
grille (2).
To complete installation for Bath Fan
models with lights, continue with steps 6 and 7.
For models without lights, skip to step 7.
Remove the electrical cover inside the
expansion vent housing (1) using a screwdriver.
Connect power by following wiring diagram
(
see figure 7
) and following local or National
Electrical Codes. Replace the electrical cover.
Knockout Cover
Optional Knockout
Figure 6
Electrical
Figure 7
Supply
Voltage
120VAC
White (N)
Black (L)
Ground (GND)
Black
Green
White
Light
Leads
Installation
Important: It is recommended that all electrical
equipment be tested prior to installation.
