506501-01 Page 1 of 48Issue 1031
*506501-01*
This manual must be left with the homeowner for future reference.
INSTALLATION INSTRUCTIONS
A95UH, A93UH, 95G1UH & 92G1UH
Warm Air Gas Furnace
Upflow/Horizontal Left and Right Air Discharge
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.
As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
CAUTION
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.
WARNING
Manufactured By
Allied Air Enterprises, Inc.
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
Unit Dimensions ............................................................ 2
A95/A93/95G1/92G1UH Parts Arrangement ................ 3
A95/A93/95G1/92G1UH Gas Furnace ......................... 4
Shipping and Packing List ............................................ 4
Safety Information ......................................................... 4
Use of Furnace as a Construction Heater .................... 5
General ......................................................................... 6
Combustion, Dilution, Ventilation Air ............................. 6
Setting Equipment ........................................................ 9
Filters .......................................................................... 13
Duct System ................................................................ 13
Pipe and Fittings Specifications .................................. 13
Joint Cementing Procedure ........................................ 15
Venting Practices ........................................................ 16
TABLE OF CONTENTS
Vent Piping Guidelines ................................................ 17
Gas Piping .................................................................. 31
Electrical ..................................................................... 34
Unit Start Up ................................................................ 37
Gas Pressure Measurement ....................................... 39
High Altitude Information ............................................. 39
Other Unit Adjustments ............................................... 41
Service ........................................................................ 42
Planned Service .......................................................... 44
Failure Codes .............................................................. 44
Repair Parts List ......................................................... 45
Start Up Checklist ....................................................... 46
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