Guys Please do not flame
Rheem mod id tag weather damage serial id tag weather damage 2 1\\2 ton rooftop heat pump charging chart was found inside unit
The compressor tags on the other 4 units has rusted off. model CRM1 - 0400 -TF5 BM 270HE Serial # 5T 86C 03321 1H
208 230v 3 phaseI am assuming that the 270 means 2 1/4 and HE for high efficiency. the 86c means it was manufactured march 1986. I errored in not taking a photo of the piping of the compressor. I suggest replacement and they says to fix it.
Oscar
It has been at least 10 years since I posted on the hvac forum