507270-03 Page 1 of 60Issue 1621
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
Manufactured By
Allied Air Enterprises LLC
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
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
This manual must be left with the homeowner for future reference.
A95UH1D,A93UH1D,95G1UH-P & 92G1UH-P
INSTALLATION INSTRUCTIONS
Warm Air Gas Furnace
Upow/Horizontal Left and Right Air Discharge
(P) 507270-03
*P507270-03*
TABLE OF CONTENTS
Unit Dimensions ................................................................ 2
Parts Arrangement............................................................. 3
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 & Fittings Specications .......................................... 13
Joint Cementing Procedure ............................................. 15
Venting Practices ............................................................. 16
Vent Piping Guidelines .................................................... 18
Gas Piping ....................................................................... 38
Electrical .......................................................................... 41
Unit Start-Up .................................................................... 44
Gas Pressure Adjustment ................................................ 46
High Altitude Information ................................................. 46
Other Unit Adjustments.................................................... 49
Blower Motor Performance .............................................. 50
Service .......................................................................... 54
Planned Service .............................................................. 56
Diagnostic Codes ............................................................ 56
Repair Parts List .............................................................. 57
Start-Up & Performance Check List ................................ 58
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