Product Comparison: Central Air Conditioner

  Evolution System
Evolution® System
Preferred Series
Preferred™ Series
Preferred Compact
Preferred™ Compact
Legacy™ Line
Legacy™ Line
Efficiency SEER Up to 21 SEER Up to 17.7 SEER Up to 15 SEER Up to 16.5 SEER
Efficiency EER Up to 15 EER Up to 13.7 EER Up to 12.5 EER Up to 13.5 EER
ENERGY STAR® qualified models Check Check Select sizes Check
PerfectHumidity® System capable All 2-stage and variable-speed models (127A only)    
Compressor type Variable-speed, single- and 2-stage available Single- and 2-stage scroll available Single-stage scroll Single-stage scroll
Quiet Level1 As low as 56 dB As low as 72 dB As low as 66 dB As low as 72 dB
Evolution Control Ready Check      
Evolution Diagnostics Check      
DuraGuard™ Plus System Check Check    
Limited Warranty
10-year parts limited warranty when properly registered2 Check Check Check Check

1 Quietest size within each model group during most common operating condition.

2 To the original owner, when product is used in an owner-occupied residence, a 10-year parts limited warranty upon timely registration of your new equipment. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty. See warranty certificate for complete details.

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