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Installation – Mounting Height & Clearance
6
www.zephyronline.com
DUCTING
A minimum of 8” round duct is recommended to
maintain maximum air fl ow effi ciency.
Always use rigid type metal ducts only. Flexible
ducts could restrict air fl ow by up to 50%.
Use calculation worksheet on page 5 to compute
total duct work.
ALWAYS, when possible, reduce the number of
transitions and turns. If a long duct run is required,
increase duct size from 8” to 10”.
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 to hood
bottom should be no less than 26”.
Maximum mount height should be no higher than
34”.
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
loose its performance and effi ciency.
If available, also refer to range manufacturer’s
height clearance requirements and recommended
hood mounting height above range. Always check
your local codes for any differences.
Duct cover extension kit available for ceiling
heights up to 12 feet. Turn to page 19 for part
number and ordering information.
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.
26” min.
34” max.
min. A
min. B
max. C
min. D
min. E
max. F
Standard Extension
Hood Heights Duct Cover Duct Cover
minimum ducted (A) 27-1/2” 46“
minimum recirculating (B) 32” 50-1/2“
maximum (C) 42” 79”
Ceiling Heights
minimum ducted (D) 89-1/2” (7’ 5-1/2”) 108“ (9‘)
minimum recirculating (E) 94” (7’ 10”) 112-1/2“ (9‘ 4-1/2”)
maximum (F) 112” (9’ 4“ ) 149” (12’ 5”)
36”
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