WITT evaporator BTU rating

[yvairguy]

Box has two coils
mod:
MMA 124
Ser:
B097948C86

Need to know the rating on the coils, I'll call tomorrow, just getting my ducks in a row three fans each 12 or 24 K? I can't find anything info on the net for that model number.

[LGM]

This is an old model from the 80's. It's an air defrost evaporator, 12,400 BTUH @ 20 deg. sst.