MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
Page
52
of
146
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0087_0F
07/13/15
Phone: 800-526-0288
GF-143
Example 1:
A 40 foot (12.2 m) length of vent pipe and 1 sharp 90° elbow add up to 40 ft. + 10 ft. = 50
equivalent ft. (17.4 m).
Example 2:
A 30 foot (10.4 m) length of vent pipe and 2 sharp 90° elbows add up to 30 ft. + (2 x 10 ft.) =
50 equivalent ft. (17.4 m).
Figure 3-27: Modulex EXT Allowable Venting Solutions
