Checklists - Lennox XC21 Installation Instructions Manual
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Also See for XC21:
- Unit information (58 pages) ,
- Installation instructions manual (52 pages) ,
- Engineering data (36 pages)
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Checklists
Two−Stage Modulation Compressors Field Operational Checklist
Unit Readings
COMPRESSOR
Voltage
Amperage
CONDENSER FAN MOTOR
Amperage
TEMPERATURE
Ambient
Outdoor Coil Discharge Air
Compressor Discharge Line
Indoor Return Air
Indoor Coil Discharge Air
PRESSURES
Suction (Vapor)
Liquid
506518−01
Expected results during Y2
Y1 − First Stage
demand (Toggle switch On)
Page 50
Same
Higher
Same or Higher
Same
Higher
Higher
Same
Lower
Lower
Higher
Y2 − Second Stage
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