Lennox LGH102H4M User Manual

Page 10
SPECIFICATIONS - GAS HEAT - 092H, 102H, 120H, 150S
Heat Input Type Standard Medium High
Number of Gas Heat Stages 2 2 2
Gas Heating
Performance
Input - Btuh First Stage 84,500 117,000 156,000
Second Stage 130,000 180,000 240,000
Output - Btuh Second Stage 104,000 144,000 192,000
Temperature Rise Range - °F 15 - 45 30 - 60 40 - 70
Thermal Efciency 80% 80% 80%
Gas Supply Connections 3/4 in. npt 3/4 in. npt 3/4 in. npt.
Recommended Gas Supply
Pressure - in. w.g.
Natural 7 in. w.c. 7 in. w.c. 7 in. w.c.
LPG/Propane 11 in. w.c. 11 in. w.c. 11 in. w.c.
HIGH ALTITUDE DERATE - 092H, 102H, 120H, 150S
Units may be installed at altitudes up to 2000 feet above sea level without any modication.
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
Type
Altitude
Feet
Gas Manifold Pressure
in. w.g.
Input Rate - Btuh
(Natural Gas or LPG/Propane)
Natural Gas LPG/Propane Gas First Stage Second Stage
Standard 2001-4500 3.4 9.6 84,500 124,000
Medium 2001-4500 3.4 9.6 117,000 172,000
High 2001-4500 3.4 9.6 156,000 230,000

Lennox LGH102H4M Specifications

General

Brand	Lennox
Model	LGH102H4M
Category	Air Handlers
Language	English