Best IS23 - Manual (Page 8)

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A
DUCTFREE
PLENUM
6” ROUND
METAL
DUCT
DUCTFREE CONFIGURATION
DUCT
CONNECTOR
OF THE
DUCTFREE
PLENUM
INSTALL DUCTFREE PLENUM
Ductfree configuration only.
1. Remove (4) screws and washers from the
support frame assembly and separate both
halves.
2. Attach a piece of 6" metal duct to the con-
nector of the plenum. Calculate the height
of the metal duct proceeding as follows:
determining the support frame lenght (using
the table shown below) and subtract 135
mm (5-5/16”).
Use aluminum duct tape to seal joints and
make air tight.
3. Insert the ductfree plenum up into the upper
support frame. Air outlets “A” of the plenum
must be aligned with openings in the upper
support frame.
4. Secure the plenum to the upper support frame
with (4) 3.9 x 9.5 mm screws.
ADJUST SUPPORT FRAME HEIGHT
Ducted and Ductfree configurations.
NOTE: FOR INSTALLATION IN ROOMS HAV-
ING 10-FOOT CEILINGS, PURCHASE FLUE
EXTENSION MODEL FEXTIS23. DISCARD
THE SUPPORT FRAME PROVIDED WITH
THE HOOD. USE THE LONGER FRAME SUP-
PLIED WITH THE FLUE EXTENSION.
1. Ducted Configuration: remove (4) screws
and washers from the support frame
assembly.
2. Determine the distance between the range
hood and the cooktop. See chart below for
mounting height restrictions. Hood must be
mounted a minimum of 24” above the
cooktop. A maximum of 30” is recommended
for best capture of cooking impurities. Dis-
tances over 30” are at the user’s discretion.
3. Adjust the overall height of the support frame.
Refer to the chart to adjust the support frame
to the proper length.
LOWER
SUPPORT
FRAME
SUPPORT
FRAME
LENGTH
CEILING
HEIGHT
8 FEET
9 FEET
HOOD DISTANCE ABOVE 36” HIGH COOK TOP
24” 25” 26” 27” 28” 29” 30”
SUPPORT FRAME LENGTH
25-3/8” 24-3/8” 23-3/8” 22-3/8”
10 FEET WITH
FEXTIS23
33-3/8” 32-3/8” 31-3/8”
47-3/8” 46-3/8” 45-3/8” 44-3/8” 43-3/8”
4. Reassemble the upper and lower support frame with (4) sheet metal screws and
washers.