Daikin VRV Inverter K Series Manual page 181

SI-05C.BOOK Page 167 Monday, November 6, 2000 4:13 PM
SiE-05C
5.7 Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Sensor
P P P P 1 1 1 1
Remote Controller
Display
Supposed Causes
Troubleshooting
Troubleshooting Inverter K Series
Open phase
Voltage imbalance between phases
Defect of main circuit capacitor
Defect of inverter unit
Defect of K1M
Improper main circuit wiring
Imbalance
in supplied voltage is YES
in excess of 10 V (TAL) or
20 V (Y1,
YAL).
NO
Is
the voltage
imbalance applied to the
YES
inverter in excess of 10 V
(TAL) or 20 V
(Y1, YAL)?
<When voltage monitoring is possible:>
NO
Using a device capable of
constant recording of power
supply voltage record power
supply voltage between 3
phases (L1 ~ L2, L2 ~ L3,
L3~L1) for about one continuous
week.
Power supply voltage imbalance
Disposal
∗In accordance with "notification of inspection results" accompanying spare parts.
Explanation for users
Give the user a copy of "notification of inspection results"and leave it up to
him to improve the imbalance.
Contact QC div.
Be sure to send a product report of the imbalance.
Troubleshooting (Inverter)
YES
Open phase?
Open phase
Normalize field cause.
NO
Fix power supply voltage
imbalance.
Part or wiring defect
After turning the power supply
OFF, check and repair the main
circuit wiring or parts.
(1) Loose or disconnected wiring
between power supply and
inverter
(2) KIM contact disposition, fusion
or contact is poor.
(3) Loose or disconnected noise
filter
∗1. Measure voltage at the Z1F power supply terminal block
(TeS1).
∗2. Measure voltage at terminals L1, L2 and L3 of the diode
module inside the inverter while the compressor is
running.
Be sure to explain to the user that there
is a "power supply imbalance" for
which DAIKIN is not responsible.
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(VF069)
167