Just a FYI for identifying Copeland semi compressors with an internal oil pump. The 4th character will be an 'A" or "B". (If it's remanufactured by Copeland)
Example: The KAT1-0100 is now a KATA-0100 and the KAT2-0100 is now a KATB-0100.
This applies to the air cooled familes; E, H, K, L and 3A.
Also, the "A" designation is used on three phase and the "B" is used on single phase models.