American Garage Door Supply Supralift II, Руководство по установке

Страница: 16 / 29

To figure the CFM required, use the following formula.
1. Multiply the stroke ( in inches) of the cylinder you are using by .00284 cubic feet of
displacement per inch. This is the cubic ft. required for 1/2 cycle (open or close)
2. Multiply the previous 1/2 cycle required times 2 for a per cycle measurement.
(Note: for dual opener systems you must multiply by 4)
3. Multiply item number 4 by the number of cycles you intend to operate in one minute. This will
vary to fit your traffic flow, size of door and etc. A 10' high door under normal operating
conditions will open and close 3 times a minute.
Stroke Lengths of Cylinder:
8' Opener 47.1875"
10' Opener 59.1875"
12' Opener 71.1875"
14' Opener 83.1875"
16' Opener 95.1875"
Example: 12' high door cycling 3 times per minute.
1. 71.1875 x .00284 = .2021 Cu. Ft. of Displacement (Per 1/2 Cycle Open or Close)
2. .2021 x 2 = .4042 Cu. Ft. of Displacement (Per Complete Cycle/ Open & Close)
3. .4042x 3 = 1.2126 CFM Required per Opener.
Air-Powered Door Openers
CFM Requirements
For more information call:
(800) 233-1487
or Fax:
(218) 751-6551
American Garage Door Supply reserves the right to make design or speci-
fication changes without notice.
1225 Industrial Park Dr. SE, Bemidji, MN. 56601
Manufactured by
16