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506887-01
Page 1 of 78
Issue 1213
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
A97USMV
Warm Air Gas Furnace
Upflow/Horizontal Left and Right Air Discharge
* P 5 0 6 8 8 7 - 0 1 *
(P) 506887-01
Manufactured By
Allied Air Enterprises, Inc.
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 .......................................................................................... 11
Pipe and Fittings Specifications ............................................................ 12
Joint Cementing Procedure .................................................................. 13
Venting Practices ................................................................................. 14
Vent Piping Guidelines .......................................................................... 15
Gas Piping ............................................................................................. 29
TABLE OF CONTENTS
Electrical ............................................................................................... 32
Integrated Control ................................................................................. 41
Blower Motor Performance .................................................................... 46
Unit Start Up ......................................................................................... 57
Gas Pressure Measurement ................................................................. 58
High Altitude Information ...................................................................... 59
Proper Combustion ............................................................................... 59
Other Unit Adjustments ........................................................................ 61
Heating Sequence of Operation ............................................................ 62
Service .................................................................................................. 64
Planned Service .................................................................................... 66
Integrated Control Diagnostic Codes .................................................... 67
Configuring Unit Size Codes ................................................................. 70
Troubleshooting ..................................................................................... 71
Repair Parts List ................................................................................... 77
A thermostat is not included and must be ordered
separately.
•
A Comfort Sync
TM
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
Summary of Contents for A97USMV
Page 3: ...506887 01 Page 3 of 78 Issue 1213 A97USMV Exploded View Figure 1 ...
Page 16: ...506887 01 Page 16 of 78 Issue 1213 Figure 17 ...
Page 28: ...506887 01 Page 28 of 78 Issue 1213 Trap Drain Assembly using 1 2 PVC or 3 4 PVC Figure 38 ...
Page 35: ...506887 01 Page 35 of 78 Issue 1213 ...
Page 36: ...506887 01 Page 36 of 78 Issue 1213 Figure 46 ...
Page 39: ...506887 01 Page 39 of 78 Issue 1213 ...
Page 40: ...506887 01 Page 40 of 78 Issue 1213 Typical A97USMV Wiring Diagram Figure 47 ...
Page 41: ...506887 01 Page 41 of 78 Issue 1213 Integrated Control Figure 48 ...
Page 42: ...506887 01 Page 42 of 78 Issue 1213 Low Voltage Field Wiring Table 14 2 Stage Single Stage ...
Page 46: ...506887 01 Page 46 of 78 Issue 1213 BLOWER DATA ...
Page 47: ...506887 01 Page 47 of 78 Issue 1213 BLOWER DATA ...
Page 48: ...506887 01 Page 48 of 78 Issue 1213 BLOWER DATA ...
Page 49: ...506887 01 Page 49 of 78 Issue 1213 BLOWER DATA ...
Page 50: ...506887 01 Page 50 of 78 Issue 1213 BLOWER DATA ...
Page 51: ...506887 01 Page 51 of 78 Issue 1213 BLOWER DATA ...
Page 52: ...506887 01 Page 52 of 78 Issue 1213 BLOWER DATA ...
Page 53: ...506887 01 Page 53 of 78 Issue 1213 BLOWER DATA ...
Page 54: ...506887 01 Page 54 of 78 Issue 1213 BLOWER DATA ...
Page 55: ...506887 01 Page 55 of 78 Issue 1213 TABLE 22 ...
Page 56: ...506887 01 Page 56 of 78 Issue 1213 TABLE 23 ...
Page 60: ...506887 01 Page 60 of 78 Issue 1213 Figure 50 ...
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