506725-01
Page 1 of 48
Issue 1109
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, Inc.
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
Unit Dimensions ............................................................ 2
A95/A93/95G1/92G1DF Parts Arrangement ................. 3
A95/A93/95G1/92G1DF 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 .......................................................................... 12
Duct System ................................................................ 12
Pipe and Fittings Specifications .................................. 12
Joint Cementing Procedure ........................................ 14
Venting Practices ........................................................ 14
TABLE OF CONTENTS
Vent Piping Guidelines ................................................ 15
Gas Piping .................................................................. 28
Electrical ..................................................................... 31
Unit Start Up ................................................................ 34
Gas Pressure Adjustment ........................................... 36
High Altitude Information............................................. 36
Other Unit Adjustments ............................................... 39
Blower Motor Performance ......................................... 40
Service ........................................................................ 42
Planned Service .......................................................... 44
Diagnostic Codes ........................................................ 44
Repair Parts List ......................................................... 45
Start Up Checklist ....................................................... 46
This manual must be left with the homeowner for future reference.
INSTALLATION INSTRUCTIONS
A95DF, A93DF, 95G1DF & 92G1DF
Warm Air Gas Furnace / Downflow Air Discharge
(P) 506725-01
*P506725-01*
