Preparation And Wiring Diagrams - Delta Breez VFB25ACH Manual

PREPARATION
Tools Required for Assembly (not included): Hammer,
Flathead Screwdriver, Wire Nuts, Nails, Duct Tape, Phillips
Head Screwdriver, Utility Knife
Helpful Tools (not included): Electric Drill, Drill Bits
WARNING: Turn off electricity at breaker box before
beginning installation.
Carefully remove unit from carton.
Check area above installation location to be sure that
wiring can run to the planned location and that duct work
can be run. Make sure the area is sufficient for proper
ventilation.
Inspect duct work and wiring before proceeding with
installation.
Before installation, provide inspection and future
maintenance access at a location that will not interfere
with installation work.
You may need the help of a second person to install this
fan: one person on the attic side and one on the room
side.
Note: Installations may vary depending on how the previous
bath fan was installed. Supplies necessary for the installation
of your bath fan are not all included.
However, most are available at your local home improvement
or hardware store.
DIMENSION REQUIREMENTS
Ceiling Opening
length
10 1/4 in. 10 1/4 in.
Housing Dimension
length
9 5/8 in. 9 5/8 in.
WIRING DIAGRAM
JUNCTION BOX
width height
8 1/2 in.
width height
8 in.
SWITCH BOX
OFF
BLACK
ON
WHITE POWER SWITCH
GREEN
Proper insulation around the fan to minimize building heat
loss and gain. 4" circular duct is recommended for installation.
The ducting from this fan to the outside of building has a
strong effect on air flow, noise and energy use of the fan.
Use the shortest, straightest duct routing possible for best
performance, and avoid installing the fan with smaller ducts
than recommended. Insulation around the ducts can reduce
energy loss and inhibit mold growth. Fans installed with
existing ducts may not achieve their rated air flow.
Short piece of flexible
duct helps alignment
and absorbs sound
Fan housing
Seal gap
around
housing
2~3 ft straight run
before elbow
The fan will operate most efficiently when located where
the shortest possible duct run and minimum number of
elbows will be needed.
Use a roof cap or wall cap that has a built-in damper to
reduce backdrafts.
External timer can be used. Please contact Delta Breez
customer service and consult with a licensed electrician
for compatibility
Humidity sensing models :
Locate unit above (GFCI-protected circuit required) or
within 5 feet of the shower head.
Locate unit away from heating or cooling sources which
can affect humidity levels.
Do not locate near window. Unit may respond to
the outdoor humidity level.
Unit must be installed in ceiling to properly sense
moisture.
Locate unit only on flat ceilings up to 12 feet high for
proper sensing.
BLACK
ON/OFF SWITCH
(purchase separately)
L
N
GRD
POWER
SWITCH
4
or
Caulk termination
to duct
WHITE
GROUND
(bare)
SWITCH BOX
WIRING
PLATE
120 VAC
LINE IN
Roof cap
(with built-in
damper)
Wall cap Wall cap
(with built-in (with built-in
damper) damper)