Armstrong Air Conditioning A97DSMV, Installation Instructions Manual

Page: 1 / 68

507029-03 Page 1 of 68 Issue 1622
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
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.
This manual must be left with the homeowner for future reference.
INSTALLATION INSTRUCTIONS
A97DSMV
Warm Air Gas Furnace
Downflow Air Discharge
(P) 507029-03
Manufactured By
Allied Air Enterprises LLC
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
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
Setting Equipment ................................................................................... 6
Filters ......................................................................................................11
Duct System ............................................................................................ 9
Pipe and Fittings Specifications ............................................................. 10
Joint Cementing Procedure ................................................................... 13
Venting Practices ................................................................................... 14
Vent Piping Guidelines .......................................................................... 16
Condensate Piping ............................................................................... 25
Gas Piping ............................................................................................. 28
TABLE OF CONTENTS
Electrical ............................................................................................ 29
Integrated Control .................................................................................. 35
Blower Motor Performance .................................................................... 43
Unit Start Up .......................................................................................... 47
Gas Pressure Measurement.................................................................. 48
High Altitude Information ....................................................................... 49
Proper Combustion................................................................................ 49
Other Unit Adjustments.......................................................................... 51
Heating Sequence of Operation ............................................................ 52
Service ............................................................................................ 54
Planned Service .................................................................................... 56
Integrated Control Diagnostic Codes..................................................... 57
Configuring Unit Size Codes ................................................................. 60
Troubleshooting ..................................................................................... 61
Repair Parts List .................................................................................... 67
A thermostat is not included and must be ordered
separately.
• A Comfort Sync™ thermostat must be used in
communicating applications.
• In non-communicating applications, a traditional
non-communication thermostat may be used.
In all cases, setup is critical to ensure proper system
operation.
Field wiring for both communicating and non-
communicating applications is illustrated in these
instructions.
NOTICE
*P507029-03*