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TABLE 7.8: SUMMARY OF VERTICAL VENTING OPTIONS
VENT OPTION # 5 6
CLASSIFICATION USED IN THIS
MANUAL
VERTICAL
TWIN PIPE
(RESERVED FOR
FUTURE USE)
ILLUSTRATED IN FIGURE 7.9
VENT PIPE STRUCTURE ROOF
AIR INTAKE PIPE STRUCTURE ROOF
VENT PIPE SIZE 3”
AIR INTAKE PIPE SIZE 3”
MAXIMUM LENGTH
VENT
FCM070 49.5ft
FCM090 49.5ft
FCM120 49.5ft
INLET
FCM070 49.5ft
FCM090 49.5ft
FCM120 49.5ft
MINIMUM LENGTH
VENT
FCM070 2ft
FCM090 2ft
FCM120 2ft
INLET
FCM070 2ft
FCM090 2ft
FCM120 2ft
VENT TERMINAL
STRAIGHT TERMINAL
BY VENT SYSTEM MFR.
(TABLE 7.5)
AIR INTAKE TERMINAL
3” 180 ELBOW
(FIGURE 7.9)
VENT MATERIAL
APPROVED STAINLESS
STEEL VENT SYSTEM
SHOWN IN TABLE 7.5
AIR INTAKE MATERIAL GALVANIZED OR PVC