52
GTS HUMIDIFIER LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Sidewall venting
INSTALLATION
WARNING
A gas vent extending through an
exterior wall shall not terminate
adjacent to wall or below building
extensions such as eaves, parapets,
balconies, or decks. Failure to comply
could result in severe personal injury,
death, or substantial property damage.
Sidewall vent and air inlet terminations
must terminate in the same pressure
zone.
Failure to prime all flue gas condensate
traps (tees and secondary heat
exchanger P-trap) with water will result
in combustion gas entering the living
space (which may contain carbon
monoxide).
To avoid the risk asphyxiation from
carbon monoxide, never operate the
humidifier unless the condensate drip
tees and secondary heat exchanger
P-trap are sealed with water.
CAUTION
Sidewall venting commercial products
will result in large exhaust plumes in
cold climates. Consideration should
be taken when locating in proximity to
windows, doors, walkways, etc.
DETERMINE A LOCATION
Consider the surroundings when terminating the vent and air:
• Position the vent where vapors will not damage nearby shrubs, plants, or
air conditioning equipment or be objectionable.
• The flue will form a noticeable plume as it condenses in cold air. Avoid
areas where the plume could obstruct window views.
• Prevailing winds could cause freezing of condensate and water/ice buildup
where flue products impinge on building surfaces or plants.
• Avoid possibility of accidental contact of flue gas with people or pets.
• Do not locate the vent where wind could affect performance or cause
recirculation, such as inside building corners, near adjacent buildings or
surfaces, window wells, stair wells, alcoves, courtyards, or other recessed
areas.
• Do not locate the vent above any door or window. Condensate can freeze,
causing ice formations.
• Locate or guard vent to prevent condensate damage to exterior finishes.
• Combustion air and flue gas terminations should be seated in the same
atmospheric zones.
• In cold climate application, insulate sealed combustion air piping that
passes through warm, humid interior environments to prevent condensation.
FIGURE 52-1: GTS HUMIDIFIER LX SERIES SIDEWALL VENTING
Flue gas vent
Combustion air pipe
Pitch
¼"/ft. minimum
Pitch
¼"/ft. minimum
OM-7983
