Lennox G1D93BC User Manual

# 45466K003 Page 7
Horizontal Venting
The vent for this appliance shall not terminate over public
walkways; or near soffit vents or crawl space vents or
other areas where condensate or vapor could create a
nuisance or hazard or cause property damage; or where
condensate vapor could cause damage or could be
detrimental to the operation of regulators, relief valves, or
other equipment.
See Figures 4 and 5 on pages 8 and 9 for additional
information on where the horizontal vent terminal can and
cannot terminate.
For direct vent installations, if the vent and air intake pipe
are not equal in length and number of elbows, then
determine the minimum pipe diameter for both the vent
and air intake. If the results indicate different diameters,
use the larger of the two for both the vent and air intake.
Under no circumstances should the vent and air
intake pipe size be different in diameter. For installation
details, refer to the appropriate section in pages 10 – 13
for the unit model and type of installation.
Figure 3
Vent Tables
(numbers in inches unless specified otherwise)
Minimum Pipe Diameter
40,000 – 80,000 BTU/HR Models
NR = Not Recommended
Minimum Pipe Diameter
112,000 – 125,000 BTU/HR Models
Minimum Pipe Diameter
90,000 – 100,000 BTU/HR Models
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Lennox G1D93BC Specifications

General

Brand	Lennox
Model	G1D93BC
Category	Furnace
Language	English