50WCE012FBA3AA-A
50 = Packaged WSHP Unit
WC = 1-Stage (Compact)
E = Vertical, Side Filter Access, Front Left Water Conn
012 = 1 Ton 
F = Vertical, Left Return, Top Discharge
B = UPM/75 VA
A = No Refrig Circuit Options, Non-Coated Copper Air Coil
3 = 208/230-1
A = No Sound, Standard Insulation
A = No Hydronic Options
- = No Options
A = Initial Release