manual
Installation – Mounting Height & Clearance
6
www.zephyronline.com
DUCTING
A minimum of 6” round or 3-1/4” x 10” rectangular 
ductmustbeusedtomaintainmaximumairow
efciency.
Always use rigid type metal ducts only. Flexible 
ductscouldrestrictairowbyupto50%.
Alsousecalculation(onpage5)tocomputetotal
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”. 
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 
resultinheatdamageandrehazard;whilehoods
mounted too high will be hard to reach and will 
loseitsperformanceandefciency.
If available, also refer range manufacturer’s height 
clearance requirements and recommended hood 
mounting height above range.
Vertical Ducting: 
6” round minimum 
Horizontal Ducting:
N/A
DAMAGE-SHIPMENT / INSTALLATION:
• Pleasefullyinspectunitfordamagebefore
installation.
• Iftheunitisdamagedinshipment,returnthe
unit to the store in which it was bought for 
repair or replacement.
• Iftheunitisdamagedbythecustomer,repair
or replacement is the responsibility of the 
customer.
• Iftheunitisdamagedbytheinstaller(ifother
thanthecustomer),repairofreplacementmust
be made by arrangement between customer 
and installer.
36"
Min 24” - Max 34”










