Slant/Fin VHG-100-CH Installation And Service Manual page 74

Concentric Vertical Termination.
Minimum clearance
above snow level
(18" for Canada)
Maximum 24" above
roof or snow level.
Figure 9.24
Do not install U-Bend or elbow on concentric termination
Do not operate the appliance with the rain cap removed from the concentric terminations or
else 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
WARNING
injury, or death.
• Do not allow insulation or other materials to accumulate inside the pipe assembly when
• Ensure termination height is above the roof surface or anticipated snow level (12 inches
NOTICE
DO NOT use field-supplied couplings to extend concentric terminations. Airflow restriction will
occur.
CAUTION
Multi venting vertical terminations
When two (2) or more direct vent appliances are vented near each other, each appliance must be individually
vented (see Figure 9.26). NEVER common vent or breach vent this appliance. When two (2) or more direct vent
appliances are vented near each other, two (2) vent terminations should be installed as shown in Figure 9.26. It is
important that vent terminations be installed as shown to avoid recirculation of flue gases.
74
Figure 9.25
installing through the hole.
(305 mm) in U.S.A. or 18 inches (457 mm) in Canada) as shown in Figure 9.24.
E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO