Daikin VRV X RXQ6-48ANR Series, Руководство по обслуживанию

Страница: 236 / 297

Troubleshooting by Error Code SiME341909EA
230 Part 6 Service Diagnosis
Note(s)
Troubleshooting
∗
1. Make measurement of voltage at the power supply terminal block (X1M).
∗ 2. Make measurement of voltage at the L1, L2 and L3 terminals of diode module located on the
inverter PCB during the compressor is in operation.
Is supply
voltage imbalance
over approximately
12 V? (
∗
1)
Correct the open phase of
power supply. Open phase?
Is the
imbalance of voltage
applied to the inverter over
approximately 12 V?
(
∗
2)
Rectify the power supply
voltage imbalance.
Take countermeasures (listed
below).
YES YES
NO NO
NO
Take countermeasures.
Defective noise filter, inverter
PCB or defective wiring
Turn OFF the power supply,
and then check and repair
wirings in the main circuit and
defective components.
(1) Defective connection or
wiring disconnection
between the power supply
and the inverter
(2) Adhesion/meltdown of
contact of, or defective
connection of K1M
(3) Wiring disconnection or
defective connection of
noise filter
Replace the inverter PCB.
RXQ6-12AR: A3P
RXQ14/16AR: A3P, A6P
YES
Explanation to users
∗
Use the document “Notice of Inspection Results” attached to spare part.
Hand the “Notice of Inspection Results” to user to ask
him/her to rectify the imbalance.
Be sure to explain user that “power supply
voltage imbalance” will occur and Daikin
accepts no responsibility for the imbalance.
Use equipment capable of constantly
recording power supply voltages (e.g.
Memory HiCorder) to record power
supply voltages between phases
(R-S, S-T, and R-T) for a period of
consecutive 1 week.
Power supply voltage imbalance Even
though power supply voltage remains
balanced when making measurement,
it often becomes imbalanced during
night-time (from 6:00 PM to 10:00 PM).
Even though the power
supply voltage is normal, the
error recurs.
<If voltage can be monitored>
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Check in Monitor Mode
For the models equipped with 2
compressors, check the
compressor M1C or M2C
applicable to the error code
P1
while in monitor mode of the
outdoor unit.