55APPENDIX A — MODEL NUMBER SIGNIFICANCEFig. A — Model Number Nomenclature5 0 K C - A 0 4 A 0 A 5 - 0 A 0 A 01 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18Unit Heat Type50 – Cooling withElectric HeatSeries/ModelKC – 14 SEER EfficiencyHeat Size— – No HeatRefrig. Systems OptionsA – Standard One-Stage Cooling ModelsB – Standard One-Stage Cooling Modelswith Humidi-MiZerCooling Tons04 – 3 ton05 – 4 ton06 – 5 tonSensor OptionsA = NoneB = RA Smoke DetectorC = SA Smoke DetectorD = RA + SA Smoke DetectorE = CO㙶F = RA Smoke Detector and CO㙶G = SA Smoke Detector and CO㙶H = RA + SA Smoke Detector and CO㙶J = Condensate Overflow Switch (electromech controls only)K = Condensate Overflow Switch and RA Smoke DetectorsL = Condensate Overflow Switch and RA + SA SmokeDetectorsIndoor Fan Options0 = Direct Drive X13 Motor2 = Medium Static Option – Belt Drive3 = High Static Option – Belt DriveNote: On single phase (-3 voltage code) models, the followingare not available as a factory-installed option:– Humidi-MiZer– Coated Coils or Cu Fin Coils– Louvered Hail Guards– Economizer or 2-Position Damper– Powered 115 volt Convenience OutletPackaging and Seismic Compliant0 = Standard1 = LTLElectrical OptionsA = NoneC = Non-Fused DisconnectD = Thru-the-Base ConnectionsF = Non-Fused Disconnect and Thru-the-BaseConnectionsService Options0 = None1 = Unpowered Convenience Outlet2 = Powered Convenience Outlet3 = Hinged Panels4 = Hinged Panels, Unpowered Convenience Outlet5 = Hinged Panels, Powered Convenience OutletIntake / Exhaust OptionsA = NoneB = Temperature Economizer w/ Barometric ReliefF = Enthalpy Economizer w/ Barometric ReliefK = 2-Position DamperU = Temp Ultra Low Leak Economizer w/ Baro ReliefW = Enthalpy Ultra Low Leak Econo w/ Baro ReliefBase unit controls0 = Electromechanical Controls, can be used with W7212EconoMi$er IV (Non-Fault Detection and Diagnostic)1 = PremierLink Controller2 = RTU Open Multi-Protocol Controller6 = Electromechanical, can be used with W7220 EconoMi$er X(with Fault Detection and Diagnostic)Design RevisionFactory AssignedVoltage1 = 575/3/60 5 = 208-230/3/603 = 208-230/1/60 6 = 460/3/60Coil Options (outdoor – indoor – hailguard)A = Al/Cu – Al/CuB = Precoat Al/Cu – Al/CuC = E-coat Al/Cu – Al/CuD = E-coat Al/Cu – E-coat Al/CuE = Cu/Cu – Al/CuF = Cu/Cu – Cu/CuM = Al/Cu – Al/Cu – Louvered Hail GuardsN = Precoat Al/Cu – Al/Cu – Louvered Hail GuardsP = E-coat Al/Cu –Al/Cu – Louvered Hail GuardsQ = E-coat Al/Cu – E-coat Al/Cu – Louvered Hail GuardsR = Cu/Cu – Al/Cu – Louvered Hail GuardsS = Cu/Cu – Cu/Cu – Louvered Hail Guards