Lennox LF25-045A User Manual

Page 12
DRAIN TEE
−
COMMON VENTING
NOT ALLOWED WHEN
HORIZONTALLY
VENTING THE
UNIT HEATER.
LISTED THIMBLE
THROUGH
COMBUSTIBLE
WALL
16 INCHES
MIN. (41 CM)
CONDENSATE DRAIN THROUGH TEE PIPE AND DRAIN LOOP
DOWNWARD SLOPE ON HORIZONTAL VENT − RESIDENTIAL OR COMMERCIAL APPLICATION
VENT
TERMINATION
TEE
Category III
adaptor must
be installed
before
optional
elbow
(if used).
DRAIN LOOP WITH WATER
TRAP TO CONDENSATE
DRAIN
(Provided by installer)
RESIDENTIAL APPLICATIONS −− Venting must be
listed special vent for Category III appliances.
COMMERCIAL APPLICATIONS −− 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.
NOTE − Minimum
horizontal vent length is
5 ft. This does not
include termination tee.
Refer to table 3 for
maximum length and
number of elbows.
FIGURE 4
COMMON VENTING
NOT ALLOWED WHEN
HORIZONTALLY
VENTING THE UNIT
HEATER.
LISTED THIMBLE
THROUGH
COMBUSTIBLE
WALL
VENT
TERMINATION
TEE
16 INCHES
MIN. (41 CM)
CONDENSATE DRAIN THROUGH VENT TERMINATION
DOWNWARD SLOPE ON HORIZONTAL VENT−RESIDENTIAL OR COMMERCIAL APPLICATION
ELBOW
OPTIONAL
DOUBLE
MALE
ADAPTER
(Cat. III
kits only)
RESIDENTIAL APPLICATIONS −− Venting must be listed special vent
for Category III appliances.
COMMERCIAL APPLICATIONS −− 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.
NOTE − Minimum
horizontal vent length is
5 ft. This does not
include termination tee.
Refer to table 3 for
maximum length and
number of elbows.
FIGURE 5

Lennox LF25-045A Specifications

General

Brand	Lennox
Model	LF25-045A
Category	Heater
Language	English