Search Search Search Heil Series Heil Series Ion™ Series (3)Performance Series (4) Sort by SEER2 Sort by SEER2 Sort by SEER2High to LowLow to High SEER2 Value SEER2 Value Reset ENERGY STAR® ENERGY STAR® Yes (5) N4A4S Up to 16 SEER2 Up to 13.5 EER2 S4A5S Up to 16 SEER2 Up to 13 EER2 N4A5S Up to 16.5 SEER2 Up to 13.5 EER2 N4A7T Up to 17 SEER2 Up to 13.5 EER2 H4A6S Up to 16.5 SEER2 Up to 13.5 EER2 H4A7T Up to 17.5 SEER2 Up to 13.5 EER2 HVA9 Up to 19 SEER2 Up to 13 EER2
