Aerco AM Series Руководство по применению - Страница 20
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GF-146-V
TAG-0075_0B
The maximum pressure drop of the combustion air piping is also 60 equivalent feet (30.5 m). See
Section 2.3. Note that this does NOT mean that the allowed combined pressure drop between the
vent and combustion air is 120 equivalent feet. That is, the vent cannot go above 60 equivalent
feet, even if the combustion air is less than 60 equivalent feet, and vice versa.
Example:
The vent system of two AM 1000 boilers (2 x 1,000,000 BTU/hr. = 2,000,000 BTU/hr.) consists of 30
foot length of vent pipe and 2 sharp 90° elbows. A termination cap is also installed. Each individual
vent connector consists of 5 ft. straight run and one WYE.
•
Common Vent pipe: 30 ft. + (2 x 10ft) + 5 ft. = 50 equivalent ft. (15.2 m)
•
Individual vent connector: 5 ft. + 5 ft. = 10 equivalent ft. (3.0 m)
•
Total Vent equivalent length: 50 ft. + 10 ft. = 60 (18.2 m)
60 equivalent ft.: OK to use 8" Common vent piping and 6" individual connectors.
Change Log:
Date
Description
04/08/2014
Rev-B: Corrected per AM.
Page 20 of 20
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
AM Series Venting
Application Guide
© AERCO International, Inc., 2014
www.aerco.com
Changed By
Curtis Harvey
AM1 04/08/2014