235SANUp to 16 SEER2Up to 8.1 HSPF2 246SANUp to 16 SEER2Up to 7.8 HSPF2 248TANUp to 18 SEER2Up to 8.5 HSPF2 290VANUp to 20 SEER2Up to 9.5 HSPF2 293VANUp to 23 SEER2Up to 9.5 HSPF2