Burnham FREEDOM Installation, Operating And Service Instructions page 20

TablE 7.8: VEnT/ air inTaKE FiTTing EQuiValEnT lEngTH
VENT FITTING
60/100mm 90° CONCENTRIC ELBOW
60/100mm 45° CONCENTRIC ELBOW
80/125mm 90° CONCENTRIC ELBOW
80/125mm 90° SWEEP CONCENTRIC ELBOW
80/125mm 45° CONCENTRIC ELBOW
80/125mm 90° CONCENTRIC SUPPORT ELBOW
3" SINGLE WALL 90° ELBOW
3" SINGLE WALL 45° ELBOW
TablE 7.9: suMMarY OF VErTiCal VEnTing OPTiOns
VENT OPTION #
CLASSIFICATION USED IN THIS
MANUAL
ILLUSTRATED IN FIGURE
VENT PIPE PENETRATION
THROUGH STRUCTURE
AIR INTAKE PIPE STRUCTURE
THROUGH STRUCTURE
VENT PIPE SIZE
AIR INTAKE PIPE SIZE
VENT TERMINAL
AIR INTAKE TERMINAL
VENT MATERIAL
AIR INTAKE MATERIAL
20
FCM070
FCM090
FCM120
FCM070
FCM090
FCM120
FCM070
FCM090
FCM120
FCM070
FCM090
FCM120
STRAIGHT TERMINAL BY VENT
SYSTEM MFR. (TABLE 7.5)
3" 180° ELBOW
(FIGURE 7.10)
APPROVED STAINLESS STEEL
VENT SYSTEM
GALVANIZED OR PVC
EQUIVALENT LENGTH (ft)
5
VERTICAL
TWIN PIPE
7.10
ROOF
ROOF
3"
80/125mm CONCENTRIC
3"
49.5 ft.
49.5 ft.
49.5 ft.
49.5 ft.
49.5 ft.
49.5 ft.
2 ft.
2 ft.
2 ft.
2 ft.
2 ft.
2 ft.
U.S. BOILER #101495-01
CONCENTRIC TERMINAL
U.S. BOILER 80/125mm
VENT COMPONENTS
SHOWN IN TABLE 7.4b.
4.5
4.0
8.5
5.5
3.0
8.5
5.5
4.0
6
VERTICAL
CONCENTRIC
7.11
ROOF
ROOF
49.5 ft.
49.5 ft.
49.5 ft.
49.5 ft.
49.5 ft.
49.5 ft.
2 ft.
2 ft.
2 ft.
2 ft.
2 ft.
2 ft.
(TABLE 7.4b)