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Lennox LGC156 User Manual

Lennox LGC156
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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.
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Lennox LGC156 Specifications

General IconGeneral
BrandLennox
ModelLGC156
CategoryAir Conditioner
LanguageEnglish

Summary

Parts Arrangement for LGA/LGC036-072 Units

Parts Arrangement for LGA/LGC090-150 Units

Parts Arrangement for LGA/LGC156-300S Units

Parts Arrangement for LGA/LGC248-360 Units

Safety Information

General Safety Warnings and Precautions

Includes warnings regarding explosion, fire, installation, electrical shock, water damage, and fiberglass exposure.

Unit Operation Before Lighting

Safety checks and operational steps to perform before lighting the furnace for the first time.

Placing Unit into Operation

Gas Valve Operation Guide

Detailed instructions for operating the gas valve on various models including White Rodgers and Honeywell.

Turning Off Gas to Furnace

Burner Flame Inspection

Flue Passage and Vent Inspection

Scheduled Service Requirements

Filter Servicing Procedures

Burner Cleaning and Maintenance

Lubrication Guidelines

Manifold Pressure Specifications

Combustion Air Inducer Maintenance

Flue Passageway and Flue Box Cleaning

Service Reminder Checklist

Repair Parts Identification

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