Danby 24 Inch Over-The-Range Microwave Oven Installation Guide - Manuel (Page 11)

DUCT PIECES EQUIVALENT
LENGTH
X NUMBER USED
= EQUIVALENT LENGTH
Rectangular to round
transition adapter
5 ft X ( ) = ft
Wall cap
40 ft X ( ) = ft
Round 90° elbow
10 ft X ( ) = ft
Round 45° elbow
5 ft X ( ) = ft
Rectangular 90° elbow
25 ft X ( ) = ft
Rectangular 45° elbow
5 ft X ( ) = ft
Roof cap
24 ft X ( ) = ft
Straight duct 6” round or
3 1/4” x 10” rectangular
1 ft X ( ) = ft
TOTAL LENGTH = ft
DUCT LENGTH CALCULATOR
Use the chart below to calculate the total length of the duct work being installed. The total length should not
exceed 140 feet.
INSTALLATION INSTRUCTIONS
10