Ducting Calculation Sheet - Zephyr CACHE CCA-E36ASX Use, Care And Installation Manual

Duct pieces i Equivalent number Duct pieces Equivalent number
length x used = Total length x used = Total
............................................................... }..........................................
3-1/4"x10" 1Ft. x( ) = Ft. _ 6'L8"Round 30Ft, x( ) = Ft.
Rect., _ wall cap ::
:_straight with damper
3 1/4" x 10" i
rect,
transition
T' round to 15Ft. x( ) = Ft.
3-t/4" x 10" i
rect,
transition
900 elbow
Subtotal column 2 = Ft,
Subtotal column 1 = _: Ft.
Total ductwork = Ft.
:_o
dl,,,l
==
Maximum Duct Length: For satisfactory air movement,
the total duct length of a 3 1/4" x 10" rectangulard", T' or 8"
diameter round duct should not exceed t00 equivalent feet.