50GCBM04A3A5-6F0A0
50GC = Hi-Efficiency Cooling with Electric Heat Packaged Rooftop
B = Medium Electric Heat
M = Two stage cooling Models 
04 = 3 Tons
A = No Smoke or CO₂ sensor
3 = Direct Drive, EcoBlue, High Static Option
A = Al/Cu - Al/Cu

5 = 208/230-3-60
6 = Electro-Mechanical Controls can be used with W7220 EconoMi$er X (with Fault Detection & Diagnostic)
F = Enthalpy Economizer with Barometric Relief
0 = No Convenience Options
A = No Electrical Options
0 = Standard Packaging