Installation & Operation Manual
5Vertical direct venting (continued)
Vertical termination – optional concentric vent: Models 399 - 600 Only
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 | |
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 fastened tightly into the rubber adapter |
| for #CVK3007 installations. |
7. | Cement the appliance combustion air and vent pipes to |
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
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.
COMBUSTION
AIR
ROOF BOOT / FLASHING (FIELD SUPPLIED)
VENT
12" (305 MM) (18" (457 MM) FOR CANADA)
MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24” (610 MM) ABOVE ROOF.
SUPPORT (FIELD SUPPLIED)
ELBOW
(FIELD SUPPLIED)
appliance. When two (2) or more direct vent appliances are vented near each other, two (2) vent terminations may be installed as shown in FIG.
(2)terminations. It is important that vent terminations be made as shown to avoid recirculation of flue gases. Dimension A in FIG.
Figure
"A"
VENT | COMBUSTION |
| AIR |
NOTICE | Ensure termination height is above the | |
roof surface or anticipated snow level | ||
| ||
| ||
| (12 inches (305 mm) in U.S.A. or 18 | |
| inches (457 mm) 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 |
36" (914 MM)
MIN.
VENT (TYP)
COMBUSTION AIR (TYPICAL)
diameter, field supplied standard schedule |
40 PVC for CVK3007. Do not extend |
dimension D* more than 60 inches |
(1524 mm) (see FIG. |
12" (305 MM) (18" (457 MM) |
|
|
FOR CANADA) MINIMUM |
| DIMENSTION "A" IS TOUCHING |
| ||
|
| |
CLEARANCE ABOVE |
| OR 2" (51 MM) MAXIMUM |
|
| |
HIGHEST ANTICIPATED |
| SEPARATION |
SNOW LEVEL. MAXIMUM OF |
|
|
24" (610 MM) ABOVE ROOF. |
|
|
33