54
GTS HUMIDIFIER LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Sidewall venting (continued)
INSTALLATION
FIGURE 54-2: GTS HUMIDIFIER LX
SERIES SIDEWALL VENTING
WITH CONCENTRIC VENT
12" (305 mm)
12" (305 mm)
Overhang or
roof
Grade/snow line
OM-7982
SIDEWALL INSTALLATION
See Figures 54-1 and Figures 54-2.
• For Models LX-50 - LX-300 only: Install a drip tee within the first 3' (1 m)
of flue venting for flue condensate removal. If flue vent is less than 10' (3
m) long and a sidewall exit, then no drip tee needed.
Warning:
Failure
to follow these instructions could reduce the service and efficiency of the
secondary heat exchanger.
• If total actual length of flue gas venting is less than 10' AND sidewall exit is
used, a tee is not needed.
• The combustion
air
piping must end in a down-turned elbow. This
arrangement avoids recirculation of flue products into the combustion air
stream.
• The flue gas
vent
piping may terminate in an elbow pointed outward or
away from the air inlet at least 12" (305 mm) above the combustion air
inlet, or use a tee as a termination to minimize effects of wind.
• The vent must end:
• At least 6' (1.8 m) from adjacent walls.
• No closer than 12" (305 mm) below roof overhang.
• At least 3' (0.9 m) above any forced air intake within 10' (3 m).
• No closer than 12" (305 mm) below or horizontally from any door or
window or any other gravity air inlet.
• Air inlet must be at least 12" (305 mm) above grade or snow line; at least
12" (305 mm) below the vent end; and the vent pipe must not extend
more than 24" (610 mm) vertically outside the building unless supports are
added.
FIGURE 54-1: GTS HUMIDIFIER LX SERIES SIDEWALL VENTING
OM-7981
12" (305 mm)
12"
(305 mm)
Bird screen
Bird screen
Bird screen
Bird screen
Flue gas vent
Combustion
air intake
Grade/snow line
Use a tee in high
wind areas
Bird screen
Maximum outside vent
piping length 24" (610 mm)