Installation & Operation Manual
5 Vertical direct venting
Vertical termination – optional concentric vent: Models 151 - 601
WARNING
Do not operate the appliance with the rain cap removed or recirculation of combustion products may occur. Water may also collect inside the larger combustion air pipe and flow to the burner enclosure. Failure to follow this warning could result in product damage or improper operation, personal injury, or death.
CAUTION | DO NOT use | |
to extend pipes. Airflow restriction will | ||
| ||
| occur. |
6. Install the rain cap and the small diameter pipe |
assembly into the roof penetration assembly. Ensure |
the small diameter pipe is cemented and bottomed in |
the Y concentric fitting for #CVK3003 installations and |
fastened tightly into the rubber adapter for #CVK3007 |
installations. |
4.Install the Y concentric fitting pipe assembly up through the structure’s hole and field supplied roof boot/flashing.
NOTICE | Do not allow insulation or other materials |
to accumulate inside the pipe assembly | |
| when installing through the hole. |
5.Secure the assembly to the roof structure as shown below in FIG.
Figure 5-6 Concentric Vent Roof Installation
Note: CVK3003 shown for illustration purposes.
NOTICE | Ensure termination height is above the | |
roof surface or anticipated snow level | ||
| ||
| (12 inches in U.S.A. or 18 inches in | |
| Canada) as shown in FIG. | |
| If assembly is too short to meet height | |
NOTICE | ||
requirement, the two (2) pipes supplied | ||
| in the kit may be replaced by using the | |
| same diameter, field supplied | |
| PVC (D2241) pipe for CVK3003 and | |
| standard schedule 40 PVC for CVK3007. | |
| Do not extend dimension D* more than | |
| 60 inches (see FIG.’s | |
| page 29). |
7. | Cement the appliance combustion air and vent pipes to |
| the concentric vent termination assembly. See FIG. |
| for proper pipe attachment. |
8. | Operate the appliance through one (1) heat cycle to ensure |
| combustion air and vent pipes are properly connected to |
| the concentric vent termination connections. |
Multiventing vertical terminations
When two (2) or more direct vent appliances are vented near each other, each appliance must be individually vented (see FIG.
Figure
12”
MINIMUM
COMBUSTION
AIR (TYPICAL)
12” (18” FOR CANADA) MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24” ABOVE ROOF.
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