Goodman GRL SERIES Installation Instructions Manual page 16

FIGURE 10
ALTERNATE HORIZONTAL TERMINATION
FOR NON-DIRECT VENT
INSTALLATIONS
OUTSIDE
WALL
STRUCTURAL OR EXTERIOR FINISH
DAMAGE TO THE BUILDING.
Non-direct venting location
requirements are slightly different in
some cases than direct venting. Install
a non-direct vent with the following
minimum clearances.
See Figure 11.
1. Locate the bottom of the vent
terminal at least 12 inches above
grade. Increase the 12-in.
minimum to keep the terminal
openings above the level of snow
accumulation, where applicable.
2. The vent shall not terminate over
public walkways or over an area
where condensate or vapor could
create a nuisance or hazard.
3. 4 feet below, 4 feet horizontally
from, or 1 foot above any door,
window soffit, under eave vent or
gravity air inlet to the building.
4. The vent terminal shall have a
minimum horizontal clearance of 4
feet from electric meters, gas
meters, regulators and relief
equipment.
5. 6 feet from an inside corner formed
by two exterior walls –
10 feet is the recommended
distance.
6. Locate it 3 feet above any forced
air inlet located within 10 feet. Any
fresh air or make-up air inlet, such
as for a dryer or furnace area, is
considered a forced air inlet.
7. Avoid areas where dripping
condensate may cause problems,
such as above planters, patios, or
adjacent to windows where steam
may cause fogging.
16
PIPE
SUPPORT
24"
STRAP
MAX.
In addition to the minimum clearances
listed above, the vent location should
also be governed by the following
guidelines.
1. Do not terminate under any kind
of patio or deck. If running the
vent under a deck, insulate it to
insure no condensate freezes
and blocks the pipe.
2. Do not locate on the side of a
building with prevailing winter
winds. This will help prevent
moisture from freezing on walls
and overhangs (under eaves).
3. Do not extend vent directly
through brick or masonry
surfaces. Use a rust-resistant
sheet metal or plastic backing
plate behind vent.
4. Do not locate too close to shrubs
as condensate may stunt or kill
them.
5. Minimum vertical clearances of 1
foot are recommended for
overhangs up to 1 foot horizontal.
The vertical clearance should be
increased equally for each
additional increase in horizontal
overhang to a maximum vertical
clearance of 6 feet.
6. Caulk all cracks, seams and
joints within 6 feet horizontally
and above and below vent.
7. Do not terminate in any area that
may allow flue gases to stagnate.
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