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16. DUCTING CONNECTION (ALL BLOWERS)
A. When there is access to the top of the hood, connect ductwork and
seal connections with duct tape after Step 17

Install the insert.

B. When there is no access to the top of the hood, carefully pull down the
metal duct through the custom hood base hole. Slide this duct over the
transition (interior blower) or over the flange of the rough-in plate
(in-line or exterior blower). Make sure the adapter/damper assembly
enters the ducting. Seal the connection with duct tape.
HD0092
17. INSTALL THE INSERT
If an optional wall control will be
installed, refer to its installation
instructions now. When done,
continue the insert installation.
Install the insert inside the custom
hood and secure to the frame
by using the no. 8 x 3/4” mount-
ing screws provided. Start with
4 screws on top and finish with
2 on rear side. (See figure
beside for mounting screw spe-
cific locations.)
18. INSTALL THE BLOWER (INTERIOR BLOWER)
The blower must be installed to the rough-in plate using (6) no. 8 x 3/8” screws for the single blower unit and (8)
no. 8 x 3/8” screws for the dual blower unit. Remove the cover from the blower assembly. Remove the impeller(s) by
pulling them out gently (see pictures below).
HD0021 HD0022
HD0085

TOP REAR

CAUTION

Take care not to kink ducting or pinch electrical cable when installing insert.

CAUTION

Take care not to kink ducting when installing insert (step 17).