Zephyr Willow AK8800AG Use And Installation Manual page 7

Duct pieces
Total
x = Ft.
Equivalent number
length x used =
3-1/4"x10" 1 Ft.
Rect.,
straight
6" Round, 1 Ft. x =
straight
7"-10" Round, 1 Ft. x =
straight
3-1/4" x 10"
Rect.90 °
elbow
3-1/4" x 10"
Rect.45 °
elbow
3-1/4" x 10"
Rect. 900
flat elbow
3-1/4" x 10"
Rect.
wall cap
with damper
3-1/4" x 10"
Rect.to
6" round
. transition
3-1/4" x 10"
Rect.to
:'_ 6" round
transition
900 elbow
6" Round,
900 elbow
6" Round,
45 ° elbow
15 Ft.
9 Ft.
24 Ft.
30 Ft.
5 Ft.
20 Ft.
15 Ft.
9 Ft.
X
X
X
X
X
X
X
x( =
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Subtotal column 1 = Ft.
Maximum Duct Length: For satisfactory air movement, the
total duct length should not exceed 100 equivalent feet.
Duct pieces Equivalent number
length x used = Total
6" Round 30 Ft. x ( ) = Ft.
wall cap
with damper
Ft.
roof cap
6" roundto 1 Ft. x ( ) = Ft.
3-1/4" x 10"
rect.
transition
6"roundto 16 Ft. x( ) = Ft.
3-1/4" x 10"
rect.
transition
90 ° elbow
7" - 10" 15Ft. x( ) = Ft.
Round,
90 ° elbow
7" - 10" 9Ft. x( ) = Ft.
Round,
45 ° elbow
7"-10"
Round
wall cap
with damper
7"-10"
Round,
roof cap
7" round to
3 1/4" x 10"
rect.
transition
7" round to
3-1/4" x 10"
rect.
transition
90 ° elbow
30 Ft. x ( ) =
Ft.
8 Ft. x(
Ft.
23 Ft. x ( = Ft.
Subtotal column 2 = Ft.
Subtotal column 1 = Ft.
Total ductwork = Ft.
I
l,=,
O
mm
m
m
m