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3. I
(
'
NSTALLATION
CONT
3.5 I
N
-I
NSTALLING
ON
NSULATED
3.5.2 C
D
ENTRAL
RAW
Stale air exhaust ductwork
Same as for Fully Ducted System, described in step 3.5.1
Fresh air distribution ductwork
When performing duct connections, always use approved tools and materials. Respect all corresponding
laws and safety regulations. Please refer to your local building code.
•
Locate the opening for fresh air ductwork on the forced air unit return duct
at a minimum linear distance of 9' 10" (3 m) upstream (from forced air unit drop:
A+B+C). Cut out a 5" Ø hole in this location, using metal shear.
•
Use a metal transition (not included, available in hardware store) to connect the
unit duct to the forced air unit return duct.
•
Attach the other end of the flexible duct to the Fresh air to building port (see
icon on the left side of the unit). Use tie wrap and duct tape to seal the connection.
See illustration at right.
3.5.3 S
I
IMPLIFIED
NSTALLATION
Fresh air distribution ductwork (return side connection)
Same as for Central Draw Point, described in step 3.5.2
Stale air exhaust ductwork (return side connection)
When performing duct connections, always use approved tools and materials. Respect all corresponding
laws and safety regulations. Please refer to your local building code.
•
Locate the opening for stale air ductwork on the forced air unit at least 3' (0.9 m)
from fresh air ductwork connection. Cut out a 5" Ø hole in this location, using
metal shear.
•
Use a steel transition (not included, available in hardware store) to connect the
unit duct to the forced air unit return duct.
•
Attach the other end of the flexible duct to the Exhaust air from building port
(see icon on the right side of the unit). Use tie wrap and duct tape to seal the
connection. See illustration at right.
The furnace blower must be running when the ventilation unit is in operation.
)
D
D
D
UCTS AND
IFFUSERS
P
(
S
OINT
AS ILLUSTRATED IN
(
AS ILLUSTRATED IN
(
'
)
CONT
D
2.2)
ECTION
!
WARNING
S
2.3)
ECTION
!
WARNING
CAUTION
8
U
M
NIT DOOR
ETAL
TRANSITION
A + B + C =
NOT LESS
9' 10" (3
)
VJ0099
THAN
M
U
NIT DOOR
3' (0.9
)
M
MINIMUM
A + B + C =
VJ0109
THAN
NOT LESS
9' 10" (3
)
M
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