PLAN THE INSTALLATION
STALE
AIR
VENTILATOR
DIFFUSER
AIR FLOW IN TYPICAL INSTALLATION
VENTILATOR
The ventilator exhausts stale air. There are normally suf-
ficient natural intake openings into a dwelling to admit
fresh outside air to be drawn in to replace the stale air.
For better control, fresh air inlets may be used.
The ventilator should be centrally located to keep duc-
twork as short as possible. Locations for the ventilator
include: joists in an attic space or the basement, or a
wall away from the living areas.
EXHAUST DIFFUSERS (Available separately)
Exhaust diffusers regulate the flow of fresh air drawn
through the house.
Exhaust diffusers should be mounted in the ceilings or
high on the wall.
For best performance, exhaust diffusers should be
mounted in a central location. An exhaust diffuser should
not be installed near a cooking area. (see figure)
FRESH AIR INLETS (Available separately)
For best control of fresh air in a room, install a fresh air
inlet.
The number of inlets depend on the floor plan. Consider
the rooms/areas through which fresh air should flow
toward the exhaust diffuser(s).
Inlets should be located in outside walls, preferably near
the ceiling. Each inlet should be approximately the same
distance from a diffuser. Inlets should be separated from
diffusers far enough to allow fresh air to mix with room
air before being exhausted.
FRESH AIR
INLET
FRESH
AIR
LOCATION OF DIFFUSERS & INLETS
SINGLE-STORY HOME
DUCTED
KITCHEN
RANGE HOOD
DIFFUSER
FRESH AIR INLETS
FRESH AIR INLETS
DUCTED
BATH FAN