Installation Guide
13
Pyramid Use, Care, and Installation Guide
ZEPHYRONLINE.COM
Installation Instructions
1.  Using a flat-head screwdriver, 
remove both the rectangular 
and round knock-out plates 
located on top of hood.
1.  Using a flat-head screwdriver, 
remove only the rectangular 
section of the knock-out plate 
located on top of hood.
1.  Using a flat-head screwdriver, 
remove the rectangular 
knock-out plate located on 
back of hood.
Duct Location Preparation
2.  Secure 7” round collar to 
top of hood using (6) M4 x 8 
screws.
2.  Secure 3-1/4” x 10” 
rectangular collar to top of 
hood using (6) M4 x 8 screws.
2.  Secure 3-1/4” x 10” 
rectangular collar to back of 
hood using (6) M4 x 8 screws.
NOTE: If using hood in recirculating mode, skip these skips and turn to page 15.
Vertical Ducting (7” Round) Vertical Ducting (3-1/4” x 10” 
Rectangular)
Horizontal Ducting (3-1/4” x 10” 
Rectangular)
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