50VL 14 SEER Single Phase 2-5 Nominal Tons (Sizes 24-60) Three Phase 3-5 Nominal Tons (Sizes 36-60) Single-Packaged Air Conditioner System with Puron (R-410A) Refrigerant 50VL 14 SEER Single Phase 2-5 Nominal Tons (Sizes 24-60) Three Phase 3-5 Nominal Tons (Sizes 36-60) Single-Packaged Air Conditioner System with Puron (R-410A) Refrigerant