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Combined Air Inlet Points
The air inlet pipes from multiple appliances installed with an
Maximum Length of an Intelli-Vent System
The maximum installed length of the air inlet pipe from the appliance to the air inlet cap is 100 equivalent feet (30.5 m) in length. The maximum installed length of the flue pipe from the appliance to the termination cap is 100 equivalent feet (30.5 m) in length. Subtract 5 feet (1.52 m) of equivalent length for each 90° elbow installed in either the flue pipe or the air inlet pipe.
Subtract 2 1/2 feet (0.7 m) of equivalent length for each 45° elbow installed in either the flue pipe or the air inlet pipe.
VERTICAL INTELLI-VENT WITH SIDEWALL COMBUSTION AIR
FIG. 27 Vertical Intelli-Vent Installation - Sidewall Combustion Air Inlet
Follow all requirements in the General Category IV Venting sections for proper installation and venting of flue products vertically to the outdoors. All other general installation requirements must be followed.
The
Termination point for the flue products must follow the clearance requirements in the Vertical Vent Termination section of the Category IV Venting.
CAUTION
Appliances that are shut down or will not operate may experience freezing due to convective airflow in the air inlet pipe connected to the appliance.
SIDEWALL COMBUSTION
AIR INLET
FIG. 28 Air Inlet Cap for Sidewall Termination
The air inlet cap for the sidewall air inlet must be purchased from the appliance manufacturer.
The part numbers for the required sidewall air inlet cap kit are listed by unit size. The appliance manufacturer, in accordance with CSA requirements, must furnish the sidewall air inlet cap. Each kit includes the special combustion air inlet cap for installation on an exterior sidewall.
TABLE - H
|
|
|
| Air Inlet |
| Sidewall |
Input |
| Flue |
| Pipe |
| Air Inlet |
Btu/hr |
| Size |
| Size |
| Cap Kit |
|
|
|
|
|
|
|
1,500,000 |
| 6" |
| 6" |
| SAK3000 |
___________ |
| ___________ |
| ___________ |
| ___________ |
1,700,000 |
| 7" |
| 7"* |
| SAK3001 |
___________ |
| ___________ |
| ___________ |
| ___________ |
2,000,000 |
| 8" |
| 8" |
| SAK3002 |
|
|
|
|
|
|
|
*Piping from the appliance to the air inlet cap may be either 7" or 8" connecting to an 8" sidewall cap provided in the kit.
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