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Daikin RXYQ5PY1 Service Manual: Malfunction Of Transmission Examples

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Appendix

7.15 Malfunction of Transmission Examples

7.15.1 [Malfunction of Transmission Examples]
Display of Malfunction of Transmission due to the Elevator's Power
Line
Applicable
VRV in general
Models
Condition
A malfunction "UE" is issued at random. It continues to be generated maximum 30 seconds.
Transmitted waveforms were checked to be distorted for a period of approx. 10 seconds on site.
Cause
Out-Out transmission line had been laid next to the high-voltage line of the elevator.
Measure
Request to correct wiring.
Point of
Diagnosis
7.15.2 [Malfunction of Transmission Examples]
Malfunction of Transmission due to Wiring next to the High-voltage
Line for Indoor Unit
Applicable
VRV in general
Models
Condition
A malfunction "U4" sometimes occurred on the specific system. Its cause was not located
though the transmission waveforms on the outdoor unit side were checked.
Cause
Waveforms on the indoor unit side were checked. The wiring on the indoor unit side had been
laid next to the high-voltage line.
Measure
Keep the wiring of indoor unit away from the high voltage line.
Point of
Diagnosis
210
SiEN34-705
General Information

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