Page 13
CONDENSATE DRAIN THROUGH TEE PIPE AND DRAIN LOOP
GROUND LEVEL
UPWARD SLOPE ON HORIZONTAL VENT
COMMON VENTING NOT ALLOWED WHEN HORIZONTALLY VENTING THE UNIT HEATER.
Category III adaptor must be
installed before optional elbow
(if used).
LISTED WALL
THIMBLE THROUGH
COMBUSTIBLE WALL
NOTE - Minimum
horizontal vent length
is 3 ft. This does not
include termination
tee. Refer to table 2
for maximum length
and number of
elbows.
DRAIN
TEE
Venting may be single-wall (26
GSG) galvanized or equivalent
stainless steel vent pipe sealed
per these instructions, OR listed
special vent for Category III
appliances.
16 INCHES
(40.6cm)
MIN.
12 INCHES MIN.
(30.5cm) ABOVE
HIGHEST
SNOWFALL
SLOPE = 1/4 IN. PER FOOT
RUN MAXIMUM.
DRAIN LOOP WITH WATER
TRAP TO CONDENSATE
DRAIN
(Provided by installer)
12 INCHES MIN.
(30.5cm) BETWEEN
AIR INLET AND
EXHAUST
TERMINATION
(horizontal or
vertical)
EXHAUST VENT
TERMINATION
TEE
COMBUSTION
AIR INLET TEE
FIGURE 6
CONDENSATE DRAIN THROUGH TEE PIPE AND DRAIN LOOP
DOWNWARD SLOPE ON HORIZONTAL VENT
Category III adaptor must be
installed before optional elbow
(if used).
DRAIN LOOP WITH WATER
TRAP TO CONDENSATE
DRAIN
(Provided by installer)
NOTE - Minimum horizontal vent length
is 3 ft. This does not include termination
tee. Refer to table 2 for maximum
length and number of elbows.
COMMON VENTING NOT ALLOWED WHEN HORIZONTALLY VENTING THE UNIT HEATER.
Venting may be single-wall (26 GSG)
galvanized or equivalent stainless steel
vent pipe sealed per these instructions,
OR listed special vent for Category III
appliances.
SLOPE = 1/4 IN. PER FOOT
RUN MAXIMUM.
GROUND LEVEL
12 INCHES MIN.
(30.5cm) ABOVE
HIGHEST SNOWFALL
12 INCHES MIN.
(30.5cm) BETWEEN AIR
INLET AND EXHAUST
TERMINATION
(horizontal or vertical)
LISTED WALL
THIMBLE
THROUGH
COMBUSTIBLE
WALL
DRAIN
TEE
16 INCHES
(40.6cm)
MIN.
EXHAUST VENT
TERMINATION
TEE
COMBUSTION
AIR INLET TEE
FIGURE 7
Summary of Contents for LS25 Series
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