4.5 I
NSTALLING
8’’ D
UCTS AND
R
EGISTERS
4.5.1 S
TAND
A
LONE
S
YSTEM
(
AS ILLUSTRATED IN
S
ECTIONS
2.1.1
AND
2.3.1)
Stale air exhaust ductwork
• Install the stale air exhaust register in the main area where the contaminants
are produced: kitchen, living room, etc. Position the register as far from the
stairway as possible and in such a way that the air circulates in all the lived-in
spaces in the house. If desired, you can install another register (sold separately).
NOTE: If an additional register is installed, connect it to a 8” flexible duct.
• If the register is installed in the kitchen, it must be located at least 4 feet
(1.2 m) from the range.
• Install the register 6 to 12 inches (152 to 305 mm) from the ceiling on an
interior wall OR install it in the ceiling.
Fresh / Filtered air distribution ductwork
• Install the fresh / filtered air distribution register in a large, open area in the
lowest level to ensure the greatest possible air circulation. Keep in mind that
the filtered air register must be located as far as possible from the stale air
register. If desired, you can install another register (sold separately).
NOTE: If an additional register is installed, connect it to a 8” flexible duct.
• Install the register in the ceiling OR 6 to 12 inches (152 to 305 mm) from the
ceiling on an interior wall. The duct lenght should be at least 15’ (4.6 m).
(The filtered air will then flow through the room and mix with room air, ensuring
a continuous recirculating airflow.)
How to connect the 8’’ flexible duct to the registers and unit ports.
• Once the register location
is determined, cut out a
10-1/4’’ x 6 7/8’’ (260 mm x
175 mm) hole. Run one end
of the 8’’ flexible duct
through the hole and fix it to
the duct connector (
1
),
using a 30’’ tie wrap and
duct tape. Fix the duct
connector to the wall (or
ceiling) using its 4 plastic
anchors and 4 #8 x 3/4”
screws. Then, snap on the
register (
2
).
- 20 -
WARNING
Never install a stale air exhaust register in a closed room where a combustion
device operates, such as a gas furnace, a gas water heater or a fireplace.
0
!
4. INSTALL THE UNIT
(CONT’D)
VD0078
1
2
