Peter_1
29-10-2010, 07:23 AM
I have a client with VRVII's, 2 x (one master + one slave) +/- 9 indoor units on each, controlled by an Itouch installed 2004. Divided in a left and a right part of an office
Problem: 3 compressors, the VFD controlled ones on earth in a period of +/- 8 months, each time another circuit.
What can be the reason?
Present problems: one indoor unit communication error (U8) but it still runs fine. Cause?
How to reset malfunction history..if possible (depress test 4 sec, then again 4 sec and then...?)
Second problem, for some reason, after some time, sometimes 4 hours, sometimes after 3 days, all the units are switched to off. This morning most, not all switched off on R and L part of the office.
Another problem L8 fault (was L9 some weeks ago) but units are running fine sometimes for 5 days and sometimes 3 faults a day (mostly L8)
If we have an L8, why then all the 4 units are shut down an not only the master/slave with the apparent fault?
Can someone give me some light please?
Problem: 3 compressors, the VFD controlled ones on earth in a period of +/- 8 months, each time another circuit.
What can be the reason?
Present problems: one indoor unit communication error (U8) but it still runs fine. Cause?
How to reset malfunction history..if possible (depress test 4 sec, then again 4 sec and then...?)
Second problem, for some reason, after some time, sometimes 4 hours, sometimes after 3 days, all the units are switched to off. This morning most, not all switched off on R and L part of the office.
Another problem L8 fault (was L9 some weeks ago) but units are running fine sometimes for 5 days and sometimes 3 faults a day (mostly L8)
If we have an L8, why then all the 4 units are shut down an not only the master/slave with the apparent fault?
Can someone give me some light please?