User Guide

27
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 22).
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 in. and not more than
24 in. 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 in. below the horizontal
centerline of the exhaust vent terminal.
4. To avoid exhaust recirculation, the air intake terminal
may be rotated away from the exhaust vent terminal
(see Figure 22).
EXHAUST VENT
TERMINAL
INTAKE VENT
TERMINAL
4 in. MAX
8 in. MIN, 24
in. MAX.
L
C
L
C
L
C
L
C
SIDE WALL
Figure 22
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 23).
1. The air intake termination and the exhaust vent
termination shall extend above anticipated snow level
or at least 18 in. 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
1 in.
EXHAUST
VENT
TERMINAL
INTAKE
VENT
TERMINAL
8
MIN.,
24
MAX.
1 in.
“A” & “B”: ABOVE SNOW
ACCUMULATION LEVEL
OR 18 in. MIN. ABOVE
ROOF.
Figure 23
4. The air intake termination and the exhaust vent
termination must penetrate the same side of roof.
5. The centerline of the air intake termination and the
centerline of the exhaust vent termination must not
be closer than 8 in. and not farther away than 24 in. .
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.
STRAP (FIELD
SUPPLIED)
COMBUSTION
AIR
COMBUSTION
AIR
ABOVE SNOW
ACCUMULATION
LEVEL OR 18
in. MIN. ABOVE
ROOF.
ELBOW (FIELD
SUPPLIED)
SCREEN INSIDE
EXHAUST
ROOF
45° ELBOW
(SEE LOCAL
CODES)
FLASHING (FIELD
SUPPLIED)
PIPE NIPPLE
Figure 24
Figure 24 illustrates the concentric vent termination kit in a
vertical (roof) installation. Ensure the combustion air intake
location is above the anticipated snow level.