|
|
|
| G |
|
| R |
|
|
|
| v |
|
|
|
D |
|
|
| A | H |
|
|
|
|
|
|
|
|
| |
v | E |
|
|
|
|
|
|
|
|
|
|
|
|
| |
L | B |
|
|
| U.S. |
| |
|
|
|
|
| |||
| v |
| B |
|
| ||
| v | B | (3 FT) |
| |||
| v |
| |||||
|
|
|
|
| |||
| F | v |
| v | I | M |
|
|
|
|
|
| v | X | |
|
|
|
|
|
| ||
|
|
|
| A |
|
| J or K |
M |
N |
P |
Q |
(See Note 2)
V
T
V | S | Electrical | S | V |
| Service |
| ||
|
|
|
| |
|
|
|
|
|
D*
V
V
= VENT TERMINAL | X = AIR SUPPLY INLET |
= AREA WHERE TERMINAL IS NOT PERMITTED
A | = | 12 inches | clearances above grade, veran- | K |
| = | 3 ft. (U.S.A.) |
|
|
|
|
| ||
|
| (See Note 1) | da, porch, deck or balcony |
|
|
| 6 ft. (Canada) | clearance to a mechanical |
| |||||
B | = | 12 inches | clearances to window or door |
|
|
|
|
|
| (powered) air supply inlet |
| |||
L** | = | 7 ft | clearance | above paved |
| |||||||||
|
|
| that may be opened, or to per- |
| ||||||||||
|
|
|
|
|
|
| (See Note 1) | sidewalkor a paved driveway |
| |||||
|
|
| manently closed window. (Glass) |
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
| located on public property |
| ||||
D* | = | 18 inches | vertical clearance to unventilat- | M*** = | 18 inches | clearance | under veranda , |
| ||||||
|
|
| ed soffit or to ventilated soffit lo- |
|
|
|
|
|
| porch, deck, balcony or over- |
| |||
|
|
| cated above the terminal |
|
|
|
|
|
| hang |
|
|
| |
|
| *30 inches | for vinyl clad soffits and below |
|
|
| 42 inches | vinyl |
|
|
| |||
|
|
| electrical service | S | = |
| 6 inches | clearance from sides of |
| |||||
|
|
|
|
|
| |||||||||
F | = | 9 inches | clearance to outside corner |
|
|
|
| (See Note 3) | electrical service |
| ||||
G | = | 6 inches | clearance to inside corner | T | = |
| 12 inches | clearance above electrical |
| |||||
H | = | 3 ft. (Canada) | not to be installed above a gas |
|
|
|
| (See Note 3) | service |
|
|
| ||
|
|
| meter/regulatorassembly within 3 |
| Alcove Applications |
|
|
| ||||||
|
|
| feet (90cm) horizontally from the |
| N |
| = | 6 inches ................. |
| |||||
|
|
|
|
|
| |||||||||
|
|
|
|
|
|
| 12 inches ............... vinyl sidewalls |
| ||||||
|
|
|
|
|
|
|
|
| ||||||
I | = | 3 ft | clearance to gas service regula- |
| P |
| = | 8 ft. |
|
|
|
|
| |
|
|
|
|
|
| QMIN |
| RMAX |
|
| ||||
|
|
| tor vent outlet |
|
|
|
|
|
|
|
|
| ||
J | = | 9 inches (U.S.A.) |
|
| 1 cap |
| 3 feet |
| 2 x Q ACTUA L |
|
| |||
|
|
|
|
|
|
| ||||||||
|
| 12 inches (Canada)clearance to |
|
| 2 caps |
| 6 feet |
| 1 x Q ACTUA L |
|
| |||
|
|
| supply inlet to building or the |
|
| 3 caps |
| 9 feet |
| 2/3 x Q ACTUA L |
|
| ||
|
|
| combustion air inlet to any other |
|
|
|
|
|
| |||||
|
|
|
|
| 4 caps |
| 12 feet |
| 1/2 x Q ACTUA L |
|
| |||
|
|
| appliance |
|
|
|
|
|
| |||||
|
|
|
|
| QMIN = # termination caps x 3 RMAX = (2 / # termination caps) x QACTUAL |
|
| |||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
**a vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.
***only permitted if veranda, porch, deck or balcony is fully open on a minimum of 2 sides beneath the floor, or meets Note 2.
NOTE: Local codes or regulations may require different clearances.
NOTE: Termination caps may be hot. Consider their proximity to doors or other traffic areas.
NOTE 1: On private property where termination is less than 7 feet above a sidewalk, driveway, deck, porch, veranda or balcony, use of a listed cap is suggested. (See vents components pages.)
NOTE 2: Termination in an alcove space (spaces only open on one side and without an overhang) are permitted with the dimensions specified for vinyl or
NOTE 3: Location of the vent termination must not interfere with access to the electrical service.
Figure 4.4
WARNING: In the U.S.: Vent system termination is NOT permitted in screened porches. You must follow side wall, overhang and ground clearances as slated in the instructions.
In Canada: Vent system termination is NOT permitted in screened porches. Vent system termination is permitted in porch areas with two or more sides open. You must follow side wall, overhang and ground clearances as stated in the instructions.
CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PRO- TECTOR KIT BE INSTALLED.
9 |