Venmar HEPA 3100* - Manual (Page 14)

5.4 I NSTALLING N ON -I NSULATED D UCTS AND R EGISTERS ( CONT ’ D )
5.4.2 C ENTRAL DRAW P OINT ( AS ILLUSTRATED IN S ECTION 1.1.2) ( CONT ’ D )
Fresh/Filtered air ductwork (Return side connection) (cont’d)
HEPA 3100, HF 3.1 AND HEPA 4100 UNITS ONLY ( 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.
5.4.3 R ETURN - TO -R ETURN ( AS ILLUSTRATED IN S ECTIONS 1.1.3 AND 1.2.2)
Fresh/Filtered air ductwork (Return side connection)
Same as for Central Draw Point, described in point 5.4.2.
Stale air ductwork (Return side connection)
A LL UNITS
• Locate the stale air ductwork opening at least 3’ (0.9 m) from the fresh/filtered air ductwork
connection. For the HRV 2600 and HR 2.6 units, use a steel transition (not provided, available
in hardware stores). Proceed as for the fresh/filtered air ductwork, but instead of using the blue
dot sticker to identify the duct, use the red dot. (No dots for HRV 2600 and HR 2.6 units.)
• Attach this duct to the EXHAUST AIR FROM BUILDING port (see icon on the top of the unit), using tie wrap
and duct tape.
5. INSTALL THE UNIT (CONT’D)