American Water Heater Ultra Low NOx MODELS Installation Instructions And Use & Care Manual page 12

Vent Cap Termination
WARNING
Carbon Monoxide Hazard
Follow all instructions to locate and install
vent cap terminal.
Instructions can be found in this manual, in
state and local codes (or the authority
having jurisdiction), or in the absence of
such, the National Fuel Gas Code, ANSI
Z223.1, NFPA 54, Current Edition.
Failure to properly locate and install the
vent terminal can result in death, carbon
monoxide poisoning.
The termination of the vent cap must be in accordance
with the local code or the authority having jurisdiction, or
in the absence of such, the National Fuel Gas Code, ANSI
Z223.1, NFPA 54, Current Edition.
Figure 10
Vent Cap Termination Locations
U.S. Installation
A. 12 in (30 cm) min. clearance above grade, veranda, porch, deck,
balcony, or maximum anticipated snow level.
B. 9 in (23 cm) min. clearance on top and side of window or door
that may be opened. Do not install below a window or door that
may be opened.
C. Clearance to permanently closed window.**
D. 12 in (30 cm) min vertical clearance to ventilated soffit.
E. 12 in (30 cm) min. clearance to unventilated soffit.
F. Clearance to outside corner **
**Clearance in accordance with local installation codes and the requirements of the gas supplier
The Vent terminal is HOT when the water heater is in
operation. Do not touch the vent terminal or place any
object where contact with the vent terminal may occur. A
protective louvered wall or fence is recommended when
the hot vent cap is low enough to be touched accidentally
(see Figure 5). A Vent guard kit (Kit # 6907245) may
be ordered by contacting the manufacturer of this water
heater at 1-800-999-9515.
• The exhaust outlet must not terminate under a patio,
deck, or any covered area.
• Do not terminate the exhaust outlet near walkways or
into alleys or other publicly accessible areas.
• Do not locate the vent terminal too close to shrubs or
bushes.
• Caulk all cracks, seams, and joints within 6 feet
horizontally above and below the vent.
• Do not terminate the vent within 12 inches of any other
direct vented appliance vent
12
Do not terminate the vent cap in areas containing acid
forming chemicals. Inlet air must not contain any corrosive
elements. Any water heater failure due to corrosive
elements in the atmosphere is excluded from warranty
coverage.
See Figures 7 and 8 for correct Vent Cap Termination
Locations.
Figure 9
Alcove Installation Minimums
18" Min.
G. 12 in (30 cm) min. clearance to inside corner formed by two
exterior walls.
H. 4 ft (122 cm) min. clearance to each side of center line extending
above meter/regulator assembly.
I. 4 ft (122 cm) min. clearance to service regulator vent outlet.
J. 12 in (30 cm) min. clearance to nonmechanical air supply inlet to
building or the combustion air inlet to any other appliance.
K. 3 ft (91 cm) above if within 10 ft (3 m) horizontally of mechanical
air supply inlet.
Figure 11
Protective Louvered Wall or Fence
HOT
18" Min.
24"
Max.
Hot Vent Cap
Protective
Louvered
Wall or Fence
3 feet Min.