Carrier Air Conditioners Products vary by dealer. Please consult your local dealer for product specifics. 24VNA6Up to 24 SEER2 24VNA9Up to 19 SEER2 24TPA7Up to 17 SEER2 24SPA6Up to 16.5 SEER2 24SCA5Up to 16.5 SEER2 24SCA4Up to 16 SEER2 24SCA5***CUp to 16 SEER2 34SCA5Up to 16 SEER2