Cmsaircon
08-03-2014, 12:06 PM
Hi guys .... We have re commissioned an existing mitsi r2 system , with 8 units on it , we had to move a few units and re cable it due to builders cutting several cables before we even got there .
Unfortunately we never witnessed the system running so we recovered all the refrigerant and did the works re pressured faced & re charged system the pipe worked we amended was same lengths as before so no re calculation gas charge was needed .... It's now complete but we have a problem when we run the system in heating , 1500 flashes up on all controllers !!! We don't seem to have this problem when we run the system in cooling . I'm aware gas over charge is 1 cause but we find this very hard to believe ... Unless it was overcharged to start with .
Any other ideas would be grateful cheers
Colin
Unfortunately we never witnessed the system running so we recovered all the refrigerant and did the works re pressured faced & re charged system the pipe worked we amended was same lengths as before so no re calculation gas charge was needed .... It's now complete but we have a problem when we run the system in heating , 1500 flashes up on all controllers !!! We don't seem to have this problem when we run the system in cooling . I'm aware gas over charge is 1 cause but we find this very hard to believe ... Unless it was overcharged to start with .
Any other ideas would be grateful cheers
Colin