Zephyr AK7548ASX - Manual (Page 8)

Installation –
Mounting Height & Clearance
6
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DUCTING
A minimum of 6” round or 3-1/4” x 10” rectangular
duct must be used to maintain maximum air fl ow
effi ciency for single internal blower and 10” round
duct for dual internal and remote blower.
Always use rigid type metal ducts only. Flexible
ducts could restrict air fl ow by up to 50%.
Also 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.
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 26”.
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 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 range manufacturer’s height
clearance requirements and recommended hood
mounting height above range.
Vertical Ducting:
6” round minimum (CBI-xxxB blower)
10” round minimum (PBI-1100A and remote
blowers)
Horizontal Ducting:
3-1/4”x10” minimum (CBI-xxxB blower)
No horizontal option available for PBI-1100A or
remote 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”
26” min.
36” max.