INSTALLATION INSTRUCTIONS
A80UH & 80G1UH
Warm Air Gas Furnace
Upflow / Horizontal Left and Right Air Discharge
This manual must be left with the homeowner for future reference.
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to the potential for personal injury or death.
CAUTION
As with any mechanical equipment, personal injury can result from contact with sharp sheet metal edges. Be careful when you handle this equipment.
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional installer (or equivalent), service agency or the gas supplier.
TABLE OF CONTENTS
Unit Dimensions | 2 | Gas Piping | 23 |
A80UH & 80G1UH Parts Arrangement | 3 | Electrical | 25 |
A80UH & 80G1UH Gas Furnace | 4 | Unit | 29 |
Shipping and Packing List | 4 | Heating Sequence of Operation | 30 |
Safety Information | 4 | Gas Pressure Adjustment | 31 |
Use of Furnace as a Construction Heater | 5 | High Altitude | 31 |
General | 6 | Other Unit Adjustments | 31 |
Combustion, Dilution, Ventilation Air | 6 | Service | 33 |
Setting Equipment | 9 | Planned Service | 36 |
Filters | 12 | Integrated Control Diagnostic Codes | 36 |
Duct System | 12 | Repair Parts List | 37 |
Venting | 13 |
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*506526-01*
Manufactured By
Allied Air Enterprises, Inc.
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
Issue 1031 | Page 1 of 39 |