CONCENTRIC VENT
TERMINATION
Vent Termination Clearances
!WARNING
CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD
Failure to follow this warning could result in personal injury, death, or property damage.
Inlet and outlet pipes may NOT be vented directly above each other (standard vent terminals).
1. | Determine termination locations based on clearances |
| specified in following steps and as shown in Fig. 8, 31 |
| through 36 |
2. | The vent termination must be located at least 12″ (304.8mm) |
| above ground or normally expected snow accumulation |
| levels. |
3. | Do NOT terminate over public walkways. Avoid areas |
| where condensate may cause problems such as above |
| planters, patios, or adjacent to windows where steam may |
| cause fogging. |
2.Determine the best location for the termination kit. See Fig. 32 for vertical termination or Fig. 35 and 36 for horizontal termination. Roof termination is preferred since it is less susceptible to damage, has reduced intake contaminants and less visible vent vapor. For side wall termination, consideration should be given to: 1) possible damage from the vapors to plants/shrubs, other equipment and building materials, 2) possible damage to the terminal from foreign objects, 3) wind effects that may cause recirculation of flue products, debris or light snow and 4) visible vent vapor.
Kit Contents: |
| |
3″ (76.2) | Rain Cap or 2″ (50.8) Rain Cap |
|
3″ (76.2) | Diameter |
|
| 2 |
|
4″ (101.6) Diameter |
| |
2″ (50.8) | Diameter |
|
| 8 |
|
21/2″ (63.5) Diameter | 2″ (50.8) or 3″ | |
3″ (76.2) | Y Concentric Fitting or 2″ (50.8) Y Concentric Fitting | (76.2) Dia. |
|
| Rain Cap |
Nominal 3″ (76.2) or 4″ (101.6) Dia.
2″ (50.8) or 3″ (76.2) Dia. | 2 (50.8) or 21/ ″ (63.5) |
|
Y Concentric Fitting | 2 | |
| Dia. | |
|
| A07719 |
Fig. 31 - Kit Components |
| |
58HDV
4. | The vent termination shall be located at least 4′ (1.2m) |
| horizontally from any electric meter, gas meter, gas |
| regulator, and any relief equipment. These distances apply |
| ONLY to U.S. installations. |
5. | The vent termination is to be located at least 3′ (.91m) above |
| any forced air inlet located within 10′ (3m); and at least 10′ |
| (3m) from a combustion air intake of another appliance, |
| except another direct vent furnace intake. |
6. | In Canada, the Canadian Fuel Gas Code takes precedence |
| over the preceding termination instructions. |
Concentric Vent Termination
Kit # KGAVT0701CVT & KGAVT0801CVT
For additional venting information contact www.Carrier.com.
These kits are for vertical or horizontal termination of the combustion air inlet and the exhaust vent pipes on Category IV
Vent 
Combustion 
Air
Roof Boot/
Flashing
(Field Supplied)
Vent
Note:
Maintain 12″ (304.8mm) min. clearance above high- est anticipated snow level. Max. of 24″ (609.6mm) above roof.
Support
(Field Supplied)
45° Elbow
(Field Supplied)
Combustion
Air
system. Refer to Table 5 for the correct pipe size for the furnace. Both the combustion air inlet and the exhaust vent pipes must attach to the termination kit. The termination kit must terminate outside the structure and must be installed per the instructions outlined below for vertical or horizontal termination. Vertical termination is preferred. Field supplied pipe and fittings are required to complete the installation.
Vertical & Horizontal Termination
1.Determine the pipe diameters required for the installation from Table 5 and Fig. 33
Support must be field installed to secure termination kit to structure.
A07720
Fig. 32 - Concentric Vent Roof Installation
3.Cut one 5″ (127mm)diameter hole through the structure for the KGAVT0701CVT Kit or one 4″ (101.6mm)diameter hole for the KGAVT0801CVT Kit .
4.Dimension D may be lengthened to 60″ (1524mm)max. or shortened by cutting the pipes to 12″ (304.8mm) min. Dimension A will change according to D dimension. (See Fig. 33.)
31