Crown Boiler BWC151 User Manual
Page 13
10
11
FIGURE 1.11: EXPANSION LOOPS
TABLE 1.12: SUMMARY OF VERTICAL VENTING OPTIONS
VENT OPTION #
5
6
7
8
CLASSIFICATION USED IN THIS
MANUAL
VERTICAL
TWIN PIPE
VERTICAL
TWIN PIPE
VERTICAL
TWIN PIPE
VERTICAL
TWIN PIPE
ILLUSTRATED IN FIGURE
1.14
1.15
1.16
1.16
VENT PIPE PENETRATION
THROUGH STRUCTURE
ROOF
ROOF
ROOF
ROOF
AIR INTAKE PIPE PENETRATION
THROUGH STRUCTURE
ROOF
ROOF
ROOF
ROOF
VENT PIPE SIZE
3”
3”
3”
4”
AIR INTAKE PIPE SIZE
3”
3”
4”
4”
MAXIMUM LENGTH
VENT
BWC070
98ft
98ft
BWC090
98ft
98ft
BWC120
98ft
98ft
BWC151
98ft
98ft
BWC150
51ft
BWC225
49.5ft
INLET
BWC070
98ft
98ft
BWC090
98ft
98ft
BWC120
98ft
98ft
BWC151
98ft
98ft
BWC150
54.5ft
BWC225
54.5ft
MINIMUM LENGTH
VENT
BWC070
2ft
2ft
BWC090
2ft
2ft
BWC120
2ft
2ft
BWC151
2ft
2ft
BWC150
2ft
BWC225
2ft
INLET
BWC070
2ft
2ft
BWC090
2ft
2ft
BWC120
2ft
2ft
BWC151
2ft
2ft
BWC150
2ft
BWC225
2ft
VENT TERMINAL
COUPLING
CROWN
PN
230873
CONCENTRIC
TERMINAL
COUPLING
COUPLING
AIR INTAKE TERMINAL
180 ELBOW
180 ELBOW
180 ELBOW
VENT MATERIAL
CPVC + PVC
(Note #1)
CPVC + PVC
(Note #1)
CPVC + PVC
(Note #1)
CPVC + PVC
(Note #1)
AIR INTAKE MATERIAL
PVC
PVC
PVC
PVC
Note #1: First 30” and Elbow connected to boiler must be CPVC. Downstream vent pipe can be PVC, except as noted in text.