9
8
Planning Information
Proper installation of ducting is extremely
important to ensure maximum performance
from any ventilation product.
• All CFMs are based on tests at 0.1 static
pressure: without applying static pressure, CFM
would be greatly overstated.
• Straight runs and gradual turns are best; for
example, each 90º elbow is equivalent to 5-10
feet (1.52-3.05 cm) of straight run.
•
NEVER
use flexible duct; it creates back
pressure/air turbulence and greatly reduces
performance.
• Proper performance is dependent on proper
ducting; make sure that a qualified and trained
installer is used.
• Check with a qualified and trained installer or
local codes for makeup air requirement, if any.
• Max. amp rating for hoods includes
recommended ventilator kit rating; all products
must be hard wired direct with 2-wire with ground.
Plan where the duct work will be located. Install
proper-sized duct work, and roof or wall cap for
the type of blower you are using. Recommended
hood locations for the most common installations
are shown. Adjust your measurements for various
heights of ceilings, soffits, cabinets, or ranges/
rangetops.
.
Check Framing
Note:
Because of the weight of the hood make sure
that the mounting screws are driven into the framing
and not just the drywall. It may be necessary to drill
additional holes in the canopy for proper alignment
Note:
Wall exhaust must be a minimum of 24”
(61.0 cm) from ground. This may vary depending
on local codes and geographic location
Electrical Supply
Run 120 VAC electrical wiring from service panel
to installation location. See
Specifications
pages
for the maximum amp requirements.
Roof cap
7” round duct
Cabinetry or soffit
Hood
2
1
1
x4
1
2
2
x4
x4
x4
Remove top cover.
Attach damper.
3
4
Check damper for unrestricted
movement, adjust if necessary.
Attach the
optional and locally supplied
transition to
damper. Seal with aluminum tape.
3
5
1
2
x2
Flip hood over and remove blower.
Installation
(Top duct)
1
6
2
Remove recirculating bracket and turn blower around.
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