Installation guide

Installation – Mounting Height & Clearance
6
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DUCTING
A minimum of 6” round or 3-1/4” x 10” rectangular
duct work must be used to maintain maximum air
fl ow effi ciency with the 600 cfm internal blower.
A minimum of 10” to 8” round duct work must be
used with the 1000 cfm external blower.
Always use rigid type metal ducts only. Flexible
ducts could restrict air fl ow by up to 50%.
Use calculation (on page 5) to compute total
available duct run when using elbows, transitions
and caps.
ALWAYS, when possible, reduce the number or
transitions and turns. If long duct run is required,
increase duct size from 6” to 7 or 8”. If a reducer is
used, install a long reducer instead of a pancake
reducer. Reduce duct size as far away from
opening as possible.
If turns or transitions are required; install as far
away from opening and as far apart, between 2,
as possible.
Minimum mount height between range top and
hood bottom should be no less than 24”.
Maximum mount height should be no higher than
32”.
It is important to install the hood at the proper
mounting height. Hoods mounted too low could
result in heat damage and fi re hazard; while hoods
mounted too high will be hard to reach and will
lose its performance and effi ciency.
If available, also refer to range manufacturer’s
height clearance requirements and recommended
hood mounting height above range.
Vertical Ducting:
6” round minimum (internal blower)
10” to 8” round minimum (external blower)
Horizontal Ducting:
3-1/4”x10” minimum (internal blower)
No horizontal option available for external blower
DAMAGE-SHIPMENT / INSTALLATION:
• Please fully inspect unit for damage before
installation.
• If the unit is damaged in shipment, return the
unit to the store in which it was bought for
repair or replacement.
• If the unit is damaged by the customer, repair
or replacement is the responsibility of the
customer.
• If the unit is damaged by the installer (if other
than the customer), repair of replacement must
be made by arrangement between customer
and installer.
36”
24” min.
32” max.