14 SEER Single Package Air Conditioner and Gas Furnace System with R-410A Refrigerant Single Phase 2-5 Nominal Tons and Three Phase 3-5 Nominal tons PGD4, PGS4 Series E and WPG4 Series B Owners Manual 14 SEER Single Package Air Conditioner and Gas Furnace System with R-410A Refrigerant Single Phase 2-5 Nominal Tons and Three Phase 3-5 Nominal tons PGD4, PGS4 Series E and WPG4 Series B Owners Manual