9
Twister & Tornado I Use, Care, and Installation Guide
ZEPHYRONLINE.COM
Installation Instructions
Mounting Height, Clearance, & Ducting
A minimum of 6” round vertical or horizontal duct must be used
to maintain maximum air flow efficiency.
Always use rigid type metal ducts only. Flexible ducts could
restrict air flow by up to 50%.
Also use calculation (on page 8) 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.
If turns or transitions are required; install as far away from hood
duct output and as far apart, between the two as possible.
Minimum mount height between range top to hood bottom
should be no less than 24” above gas cooktops and 20” above
electric cooktops.
Maximum mount height should be no higher than 36”.
It is important to install the hood at the proper mounting height.
Hoods mounted too low could result in heat damage and fire
hazard; while hoods mounted too high will be hard to reach and
will lose its performance and efficiency.
Electric Cooktop: Min 20” - Max 36”
36”
Gas Cooktop: Min 24” - Max 36”
If available, also refer range manufacturer’s height clearance requirements and recommended hood
mounting height above range.
For shipment and installation damages:
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Please fully inspect unit for damage before installation.
Ź
If the unit is damaged in shipment, return the unit to the store in which it was bought for repair or
replacement.
Ź
If the unit is damaged by the customer, repair or replacement is the responsibility of the customer.
Ź
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.
