TABLE 1.4: VENT/ AIR INTAKE FITTING EQUIVALENT LENGTH
VENT FITTING | EQUIVALENT LENGTH (ft) |
|
|
80/125mm 90° CONCENTRIC ELBOW | 8.5 |
|
|
80/125mm 90° SWEEP CONCENTRIC ELBOW | 5.5 |
|
|
80/125mm 45° CONCENTRIC ELBOW | 3.0 |
|
|
80/125mm 90° CONCENTRIC SUPPORT ELBOW | 8.5 |
|
|
100/150mm 90° SWEEP CONCENTRIC ELBOW | 8.0 |
|
|
100/150mm 45° CONCENTRIC ELBOW | 3.0 |
|
|
100/150mm 90° CONCENTRIC SUPPORT ELBOW | 10.0 |
|
|
TABLE 1.5: 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
LENGTH | VENT | BWC225 |
|
| BWC150 |
MAXIMUM | INLET | BWC150 |
|
| |
LENGTH | VENT | BWC225 |
BWC225 | ||
|
| BWC150 |
MINIMUM | INLET | BWC225 |
|
| BWC150 |
|
|
|
VENT TERMINAL
AIR INTAKE TERMINAL
VENT MATERIAL
AIR INTAKE MATERIAL
8 |
| 9 |
VERTICAL |
| VERTICAL |
CONCENTRIC |
| CONCENTRIC |
1.7 |
| 1.7 |
ROOF |
| ROOF |
ROOF |
| ROOF |
80/125 mm CONCENTRIC |
| 100/150 mm CONCENTRIC |
| ||
47 |
|
|
|
| |
|
| 45 |
47 |
|
|
|
| 45 |
2 |
|
|
|
| 2 |
2 |
|
|
|
| 2 |
CROWN #230532 |
| CROWN #230570 |
CONCENTRIC TERMINAL |
| CONCENTRIC TERMINAL |
(TABLE 1.6a) |
| (TABLE 1.6b) |
CROWN 80/125 mm VENT |
| CROWN 100/150 mm VENT |
COMPONENTS SHOWN IN |
| COMPONENTS SHOWN IN |
TABLE 1.6a |
| TABLE 1.6b |
|
|
|
7
