Lennox LGC102 User Manual

10/08
*2P1008*
504,875M
*P504875M*
LGA/LGC036, 042, 048, 060, 072
LGA/LGC090, 102, 120, 150,
LGA/LGC156, 180, 210, 240, 300S
LGA/LGC248, 300H, 360
©2006
Litho U.S.A.
504,875M
10/2008
Supersedes 1/2006
WHAT TO DO IF YOU SMELL GAS:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings ex-
actly could result in serious injury
death or property damage.
WARNING
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
Installation and service must be per-
formed by a qualified installer, ser-
vice agency or the gas supplier.
D Do not try to light any appliance.
D Do not touch any electrical switch; do not
use any phone in your building.
D Immediately call your gas supplier from a
neighbor’s phone. Follow the gas suppli-
er’s instructions.
D If you cannot reach your gas supplier, call
the fire department.
D Extinguish any open flames.
ROOFTOP
UNITS
READ ALL INSTRUCTIONS IN THIS MANUAL
AND RETAIN FOR FUTURE REFERENCE
LGA240 SHOWN
See unit nameplate for manufacturer
and address.
FBR113270
(3, 3−1/2, 4, 5, and 6 TONS)
(7−1/2, 8-1/2, 10, and 12-1/2 TONS)
(13, 15, 17-1/2, 20, and 25 TONS)
(20, 25, and 30 TONS)
D Leave the building immediately.

Lennox LGC102 Specifications

General

SEER	16
Refrigerant	R-410A
Operating Voltage	208/230V
Phase	1
Weight (Outdoor Unit)	220 lbs
Stages	Single

Summary

General Safety Information

Fire and Explosion Hazard Warning

Warning about potential fire or explosion due to improper handling of flammable materials.

Gas Leak Emergency Procedure

Instructions on what to do if you smell gas, including extinguishing flames and contacting suppliers.

Unit Operation and Safety

General Safety Precautions

Essential safety guidelines including keeping the area clear and ensuring unobstructed airflow.

Electrical Safety

Warning regarding electrical shock hazard and the need to turn off power before servicing.

Before Lighting Procedures

Steps to follow before lighting the furnace, including smelling for gas and using controls.

Gas Valve Operation and Burner Flame

Gas Valve Operation

Instructions for operating various gas valve types (White Rodgers, Honeywell) for furnace startup.

Burner Flame Inspection

Component Maintenance

Combustion Air Inducer Cleaning

Flue Passageway and Flue Box

Service and Troubleshooting

Service Reminder Checklist

Checks to perform before calling a service technician for inoperative units.