Daikin VRV - Page 130

Malfunction of Transmission Examples Si30-408
126 Cases for Examination
3.7 [Malfunction of Transmission Examples]
A Malfunction "UE" is Sometimes Issued.
Applicable
Models
Heat recovery VRV system
Condition
Cause One BS unit in the system was oscillating.
Measure Completed by mounting a DIII-NET expander adapter.
Point of
Diagnosis
3.8 [Malfunction of Transmission Examples]
Faulty Condition Caused by Branch Lines.
Applicable
Models
VRV in general
Condition A transmission malfunction occurred when the centralized controller was added to the existing
system.
Cause Ten of all indoor-to-outdoor lines were branch lines from a single bus cable.
Measure Corrected IN - OUT wiring to one - after another wiring
Point of
Diagnosis