YH2E Up to 14.3 SEER2 Up to 8 HSPF2 HMH7 Up to 18 SEER Up to 10.5 HSPF YHG Up to 16 SEER Up to 10 HSPF YZT Up to 19 SEER Up to 10 HSPF YZV Up to 21 SEER Up to 10.75 HSPF
