Manual

Installation Instructions
WORKSHEET--CALCULATE TOTAL EQUIVALENT DUCTWORK LENGTH
DUCT
PIECES
O
O
3W'x 10"
Rect.,
straight
7" Round,
straight
6" Round,
straight
3W'x 10"
Rect.90°
elbow
3W'x 10"
Rect.45°
elbow
3/4"x 10"
Rect.90°
flat elbow
3/4"x 10"
Rect.
wall cap
with
damper
3W'x 10"
Rect.to
6" round
transition
3/4"x 10"
Rect.to
6" round
transition
90° elbow
6" Round,
90° elbow
6" Round,
45° elbow
EQUIVALENT NUMBER
LENGTH x USED
1Ft. x ( )
1Ft. x ( )
1Ft. x ( )
8.5 Ft. x ( )
7Ft. x ( )
24 Ft. x ( )
45 Ft. x ( )
(7ft.w/o
damper) x ( )
4.5 Ft. x ( )
11.5Ft. x ( )
8Ft. x ( )
6.5Ft. x ( )
= TOTAL
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
= Ft.
Ft.
Subtotalcolumn1 =
MAXIMUM DUCT LENGTH: For satisfhctov_ air
i_lo_,eillent, the total dtlct length ot a 3¼" x 10"
rectangular, 6" or 7" diameter rotmd duct should
not exceed 65 equivalent feet.
DUCT
PIECES
9
6"Round
wall cap
with
damper
6" Round
roofcap
6" Round
to
3W'x 10"
rect.
transition
6" Round
to
3W'x 10"
rect.
transition
90° elbow
EQUIVALENT NUMBER
LENGTH x USED
34Ft. x ( )
(6ft. w/o
damper) x ( )
30Ft. x ( )
5.5Ft. x ( )
14.5Ft. x ( )
(_ 7" Round, 8Ft. x ( )90° elbow
7" Round, 6.5Ft. x ( )
45° elbow
C_ 7" Round 34Ft. x ( )wall cap (6ft. w/o
with damper) x ( )
damper
(_ 7" Round 30Ft. x ( )roofcap
7" Round 5.5Ft. x ( )
_,,_ to
3W'x 10"
rect.
transition
14.5Ft. x ( )
7" Round
to
3W'x 10"
rect.
transition,
90° elbow
Subtotalcolumn2
Subtotalcolumn1
Totalductwork
= TOTAL
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
Ft.
= Ft.
= Ft.
= Ft.
8