Broan HEPA 3000 - Manual (Page 22)

4.5 I
NSTALLING
8’’ D
UCTS AND
R
EGISTERS (
CONT
’
D
)
4.5.2 C
ENTRAL
D
RAW
P
OINT
(
AS ILLUSTRATED IN
S
ECTIONS
2.1.2
AND
2.3.2) (
CONT
’
D
)
Filtered air ductwork (Return side connection) (cont’d)
• Fix the duct connector to the forced air unit
duct using its 4 retaining screws (#8 x 3/4” long).
Seal with duct tape.
• Take one end of the 8’’ flexible duct and slide
it over the duct connector. Secure with a tie
wrap. Carefully seal the connection with duct
tape. Identifiy the duct using the blue sticker
dot included.
• Attach this duct to the
FRESH AIR TO BUILDING
port (see icon on the top of the unit), using tie
wrap and duct tape.
4.5.3 R ETURN - TO -R ETURN ( AS ILLUSTRATED IN S ECTIONS 2.1.3 AND 2.3.3)
Fresh/Filtered air ductwork (Return side connection)
Same as for Central Draw Point, described in point 4.5.2.
Stale air ductwork (Return side connection)
• Locate the stale air ductwork opening at
least 3’ (0.9 m) from the fresh/filtered air
ductwork connection. Proceed as for the
fresh/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.
4. INSTALL THE UNIT (CONT’D)
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
!
3’ (0.9 m)
minimum
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