Josip
24-02-2011, 10:38 PM
Hi. dear members :)
I need help, suggestion, documentation ... etc ...
.... recently one local company bought two J&E Hall mono screws type HSO 2031 equipped with economizer... compressors were purchased to work in one stage system -45*C/+35*C with ammonia .... but that never happen compressors cannot work in that range....
... original vendor never come back and give up, then owner engage another local company to help somehow ..... after a lot of problems and examination they found those compressor are not capable to work in that range what is visible even from compressor envelope for those compressors .... please do not ask what and why happened, I do not know and that is behind us now .... a colleague, engineer from that company asked me for help and that is reason to come on RE forums ....
... something must be done ...... but, what to do ...????
it is necessary to use both almost new compressors ... one for the first stage and another for second stage ... i.e.
.... build two stage system -45*C/-5*C and -5*C/+35*C, but we are not sure what we have to do with compressors to get some economical work ... assume, we need to change Vi, maybe on both or only one, maybe something else not sure .... unfortunately we do not have any documentation .....
... company sent some email asking for help to J&E Hall, but unfortunately no response (what is not nice), some response/s not even like ... you cannot do that, this etc .... or you can do that in this/that way ... owner is not blame J&E Hall for this situation, but at the end completely helpless ...
That is the main reason to come here ....
I do hope on this powerful forum we have members capable to help ..... with suggestion, service manual with cross-section drawings, spare part list etc...
Thanks, its your move now ;) appreciate any help ....
Best regards, Josip :)
I need help, suggestion, documentation ... etc ...
.... recently one local company bought two J&E Hall mono screws type HSO 2031 equipped with economizer... compressors were purchased to work in one stage system -45*C/+35*C with ammonia .... but that never happen compressors cannot work in that range....
... original vendor never come back and give up, then owner engage another local company to help somehow ..... after a lot of problems and examination they found those compressor are not capable to work in that range what is visible even from compressor envelope for those compressors .... please do not ask what and why happened, I do not know and that is behind us now .... a colleague, engineer from that company asked me for help and that is reason to come on RE forums ....
... something must be done ...... but, what to do ...????
it is necessary to use both almost new compressors ... one for the first stage and another for second stage ... i.e.
.... build two stage system -45*C/-5*C and -5*C/+35*C, but we are not sure what we have to do with compressors to get some economical work ... assume, we need to change Vi, maybe on both or only one, maybe something else not sure .... unfortunately we do not have any documentation .....
... company sent some email asking for help to J&E Hall, but unfortunately no response (what is not nice), some response/s not even like ... you cannot do that, this etc .... or you can do that in this/that way ... owner is not blame J&E Hall for this situation, but at the end completely helpless ...
That is the main reason to come here ....
I do hope on this powerful forum we have members capable to help ..... with suggestion, service manual with cross-section drawings, spare part list etc...
Thanks, its your move now ;) appreciate any help ....
Best regards, Josip :)