48VT Comfort 14 SEER Single Packaged Hybrid Heat Dual Fuel System with Puron Refrigerant Single Phase 2-5 Nominal Tons (Size 24-60) and Three Phase 3-5 Nominal Tons (Size 36-60) 48VT Comfort 14 SEER Single Packaged Hybrid Heat Dual Fuel System with Puron Refrigerant Single Phase 2-5 Nominal Tons (Size 24-60) and Three Phase 3-5 Nominal Tons (Size 36-60)