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Zephyr AK1136B マニュアル

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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 duct should 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.