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I.TABLE OF CONTENTS
I. Table of Contents ..................................................................................................2
II. Introduction............................................................................................................3
III. Checking Product Received ..................................................................................3
IV. Specifications ........................................................................................................3
A. General .............................................................................................................3
B. Major Components............................................................................................3
V. Safety Information .................................................................................................3
VI. Unit Dimensions ....................................................................................................4
VII. Installation .............................................................................................................6
A. General .............................................................................................................6
1. Pre-Installation Check..................................................................................6
2. Location Considerations...............................................................................6
B. Outside Installation............................................................................................7
C. Attaching Exhaust and Combustion Air Inlet Hoods .........................................8
D. Cover Panel Installation/Conversion Procedure ...............................................8
E. Clearances........................................................................................................8
F. Rooftop Installation ...........................................................................................9
G.Ductwork ...........................................................................................................9
H. Return Air ........................................................................................................10
VIII. Gas Supply, Condensate Drain and Piping.........................................................12
A. Gas Connection ..............................................................................................12
B. LP Conversion.................................................................................................13
C. NOx Models ....................................................................................................13
D. Adjusting or Checking Furnace Input ..............................................................14
E. Condensate Drain ...........................................................................................15
IX. Wiring ..................................................................................................................15
A. Power Supply..................................................................................................15
B. Hook Up ..........................................................................................................17
C. Internal Wiring .................................................................................................17
D. Thermostat ......................................................................................................17
X. Furnace Section Controls
and Ignition System ...................................................18
Normal Furnace Operating Sequence.................................................................18
Operating Instructions .........................................................................................19
Burners................................................................................................................20
Manual Reset Overtemperature Control..............................................................20
Pressure Switch...................................................................................................20
Limit Control ........................................................................................................20
XI. System Operating Information.............................................................................20
Furnace Section Maintenance.............................................................................21
Lubrication...........................................................................................................22
Cooling Section Maintenance..............................................................................22
Replacement Parts..............................................................................................23
Troubleshooting...................................................................................................23
Wiring Diagrams..................................................................................................23
Charging..............................................................................................................23
Blower Motor Speed Taps...................................................................................23
XII. General Data ..................................................................................................26-43
XIII. Miscellaneous......................................................................................................44
Electrical and Physical Data...........................................................................44-47
Airflow Performance.......................................................................................48-54
Wiring Diagrams.............................................................................................55-61
Charge Charts................................................................................................62-65
Troubleshooting..............................................................................................66-68
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