2. HEPA 3.2 UNIT INSTALLATION
(CONT’D)
2.8
I
NSTALLING
D
UCTWORK AND
R
EGISTERS
2.8.2 C
ENTRAL
D
RAW
P
OINT
Filtered air distribution ductwork (Return side connection)
• Locate the opening for the filtered air ductwork on the furnace / air handler return duct at a minimum
linear distance of 2’ (0.61 m) upstream (return side:
A
+
B
+
C
).
• Attach this duct to the
FRESH AIR TO BUILDING
port (see icon on the top of the unit), using tie wrap
and duct tape. Use the provided blue sticker dots to identify the duct
Stale air exhaust ductwork
Same as for Stand Alone System, described in point 2.8.1.
2.8.3 R
ETURN
-R
ETURN
Filtered air distribution ductwork (Return side connection)
Same as for Central Draw Point, described in point 2.8.2.
Stale air exhaust ductwork (Return side connection)
• Locate the take-off duct opening at least 3’ (0.9m) from the filtered air ductwork connection.
Proceed as for the filtered air ductwork, but instead of using the blue dot sticker to identify the duct,
use the red dot.
• Attach this duct to the
EXHAUST AIR FROM BUILDING
port (see icon on the top of the unit) using tie wrap
and duct tape.
WARNING
When performing duct connections, always use approved tools and materials. Respect all corresponding laws
and/or safety regulations. Please refer to your local building code.
0
!
VD0114
A
B
C
VO0047
Minimum 3’
(0.9 m) from
filtered air
ductwork
connection
VO0048
WARNING
When performing duct connections, always use approved tools and materials. Respect all corresponding laws
and/or safety regulations. Please refer to your local building code.
0
!
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