Lennox LGH094U Unit Information page 10

SPECIFICATIONS - GAS HEAT - 092H, 102H, 120H, 150H
Number of Gas Heat Stages
Gas Heating Input - Btuh
Performance
Output - Btuh
Temperature Rise Range - °F
Gas Supply Connections
Recommended Gas Supply
Pressure - in. w.g.
HIGH ALTITUDE DERATE - 092H, 102H, 120H, 150H
Units may be installed at altitudes up to 2000 feet above sea level without any modification.
At altitudes above 2000 feet, units must be derated to match gas manifold pressures shown in table below.
At altitudes above 4500 feet unit must be derated 2% for each 1000 feet above sea level.
NOTE − This is the only permissible derate for these units.
Gas Heat Altitude
Type Feet
Standard 2001-4500
Medium 2001-4500
High 2001-4500
Heat Input Type
First Stage
Second Stage
Second Stage
Thermal Efficiency
Natural
LPG/Propane
Gas Manifold Pressure
in. w.g.
Natural Gas
3.4
3.4
3.4
Standard
2
84,500
130,000
104,000
15 - 45
80%
3/4 in. npt
7 in. w.c.
11 in. w.c.
LPG/Propane Gas
9.6
9.6
9.6
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Medium
2
117,000
180,000
144,000
30 - 60
80%
3/4 in. npt
7 in. w.c.
11 in. w.c.
Input Rate - Btuh
(Natural Gas or LPG/Propane)
First Stage Second Stage
84,500
117,000
156,000
High
2
156,000
240,000
192,000
40 - 70
80%
3/4 in. npt.
7 in. w.c.
11 in. w.c.
124,000
172,000
230,000