Side Wall Vent Terminal Installation; Roof Vent Terminal Installation; Concentric Vent Termination Kit Installation - American Water Heater Powerflex Installation And Operating Manual

Side Wall Vent Terminal Installation

Important: When terminating the vent on a side wall, the
following specifi cations pertaining to terminal location must
be followed (see Figure 21).
1. The air intake terminal and the exhaust vent terminal
must terminate on the same exterior wall.
2. The vertical centerline of the air intake terminal must
be located at a minimum of 8" and not more than
24" from the vertical centerline of the exhaust vent
terminal.
3. The horizontal centerline of the air intake terminal
may not be located more than 4" below the horizontal
centerline of the exhaust vent terminal.
L C
SIDE WALL
L C
INTAKE VENT
EXHAUST VENT
TERMINAL
TERMINAL
Figure 21

Roof Vent Terminal Installation

Important: When terminating the vents through a roof,
the following specifi cations pertaining to terminal location
must be followed (see Figure 22).
1. The air intake termination and the exhaust vent
termination shall extend above anticipated snow level
or at least 18" above the roof.
2. Must provide proper support for all pipes protruding
through roof.
3. The vertical roof terminations should be sealed with a
plumbing roof boot or equivalent fl ashing.
"A" & "B": ABOVE SNOW
ACCUMULATION LEVEL
O R 1 8 " M I N . A B O V E
ROOF.
Figure 22
4. The air intake termination and the exhaust vent
termination must penetrate the same side of roof.
328767-001
L C
8" MIN, 24"
MAX.
4" MAX
L C
I N . ,
8 " M X .
M A
2 4 "
1 "
I N T A
1 "
V E N
T E R M
A
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5. The centerline of the air intake termination and the
centerline of the exhaust vent termination must not be
closer than 8" and not farther away than 24" .
6. The air intake terminal and the exhaust vent terminal
must be oriented facing downward and the same
direction.

Concentric Vent Termination Kit Installation

A concentric vent termination kit (see Table 2) may be
used for vertical or horizontal terminations.
45° ELBOW
(SEE LOCAL
CODES)
SCREEN INSIDE
COMBUSTION
AIR
FLASHING (FIELD
SUPPLIED)
Figure 23 illustrates the concentric vent termination kit in a
vertical (roof) installation. Ensure the combustion air intake
location is above the anticipated snow level.
K E
T
I N A L
B
PIPE NIPPLE
ABOVE SNOW
ACCUMULATION
LEVEL OR 18" MIN.
ABOVE ROOF.
ROOF
STRAP (FIELD
SUPPLIED)
COMBUSTION
EXHAUST
AIR
Figure 23
ELBOW (FIELD
SUPPLIED)
27