Josip
11-09-2012, 09:20 PM
Hi,
need some help, suggestion ... tip ... whatever we call that ... do not know anything about history of this compressor, but here we are ...
SAB 128 HF possible Mk3 but not sure ...
installed: about 1999-2000
refrigerant: ammonia
evaporating temperature -10*C
condensing I assume 30/35*C
working time around 38000 hours
equipped with UNISAB II ... nothing about configuration
oil ... maybe synthetic, but not sure
about other maintenance ... have no idea ... have been told ... servicing was more or less normal with changing of oil, oil filters, other details unknown...
Received request to help, with below description by phone from operator or owner:
Compressor can start normally, but oil pressure from the first moment is slowly going down, oil temperature is going up to 60*C and discharge temperature is very high up to 100*C, when oil pressure is coming down to 1.2 bar UNISAB shut down ....
I have some ideas (never saw that compressor, even above description received by phone), but I would like to hear your inputs, assumptions, thoughts, maybe someone had some recent case similar to this .... any help is welcome ... thanks for your time ...
We are still negotiating about this job and if we get it next week I'm going on site to check all about ... than I can update this thread with real on site situation....
Best regards, Josip :)
need some help, suggestion ... tip ... whatever we call that ... do not know anything about history of this compressor, but here we are ...
SAB 128 HF possible Mk3 but not sure ...
installed: about 1999-2000
refrigerant: ammonia
evaporating temperature -10*C
condensing I assume 30/35*C
working time around 38000 hours
equipped with UNISAB II ... nothing about configuration
oil ... maybe synthetic, but not sure
about other maintenance ... have no idea ... have been told ... servicing was more or less normal with changing of oil, oil filters, other details unknown...
Received request to help, with below description by phone from operator or owner:
Compressor can start normally, but oil pressure from the first moment is slowly going down, oil temperature is going up to 60*C and discharge temperature is very high up to 100*C, when oil pressure is coming down to 1.2 bar UNISAB shut down ....
I have some ideas (never saw that compressor, even above description received by phone), but I would like to hear your inputs, assumptions, thoughts, maybe someone had some recent case similar to this .... any help is welcome ... thanks for your time ...
We are still negotiating about this job and if we get it next week I'm going on site to check all about ... than I can update this thread with real on site situation....
Best regards, Josip :)