Zephyr ZVE-E42S - Manual (Page 6)

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4
Installation
-
Ductwork
Calculation
Sheet
Duct pieces
Total
Equivalent number
length x used =
3 1/4” x 10”
Rect.,
straight 1 Ft. x ( ) = Ft.
7” Round,
straight 1 Ft. x ( ) = Ft.
3 1/4” x 10”
Rect. 90
0
elbow
15 Ft. x ( ) = Ft.
3 1/4” x 10”
Rect. 45
0
elbow
9 Ft. x ( ) = Ft.
3 1/4” x 10”
Rect. 90
0
flat elbow
24 Ft. x ( ) = Ft.
3 1/4” x 10”
Rect.
wall cap
with damper 30 Ft. x ( ) = Ft.
3 1/4” x 10”
Rect. to
6” round
transition 5 Ft. x ( ) = Ft.
3 1/4” x 10”
Rect. to
6” round
transition
90
0 elbow
15 Ft. x ( ) = Ft.
6” Round,
90
0 elbow
15 Ft. x ( ) = Ft.
6” Round,
45
0 elbow
9 Ft. x ( ) = Ft.
Ft.
7” Round,
straight 1 Ft. x ( ) = Ft.
Subtotal column 1 =
Duct pieces
Total
Equivalent number
length x used =
6” Round
wall cap
with damper 30 Ft. x ( ) = Ft.
7” Round
wall cap
with damper 30 Ft. x ( ) = Ft.
7” Round,
90
0 elbow
15 Ft. x ( ) = Ft.
7” Round,
45
0 elbow
9 Ft. x ( ) = Ft.
Ft.
Ft.
Ft.
6” Round,
roof cap 30 Ft. x ( ) = Ft.
7” Round,
roof cap 30 Ft. x ( ) = Ft.
Subtotal column 2 =
Subtotal column 1 =
Total ductwork =
Maximum Duct Length: For satisfactory air movement,
the total duct length of a 3 1/4” x 10” rectangular, 6” or 7”
diameter round ductshould not exceed 100 equivalent feet.
6” round to
3 1/4” x 10”
rect.
transition 1 Ft. x ( ) = Ft.
6” round to
3 1/4” x 10”
rect.
transition
90
0 elbow
16 Ft. x ( ) = Ft.
7” round to
3 1/4” x 10”
rect.
transition 8 Ft. x ( ) = Ft.
7” round to
3 1/4” x 10”
rect.
transition
90
0 elbow
15 Ft. x ( ) = Ft.