Outdoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise Sensor - Daikin VRV K Manual

SI-95.BOOK Page 121 Friday, March 31, 2000 10:59 AM
Si-95
4.7

Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Sensor

P P P P 1 1 1 1
Remote Controller
Display
I Lack of phase
Supposed Causes
I Voltage imbalance between phases
I Defect of main circuit capacitor
I Defect of inverter unit
I Defect of K1M
I Improper main circuit wiring
Troubleshooting
Troubleshooting Inverter K Series
Imbalance
YES
in supplied voltage is
in excess of 20 V (Y1).
NO
Is the voltage
YES
imbalance applied to the
inverter in excess of 20 V
(Y1)?
<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.
Troubleshooting (Inverter)
YES
Open phase?
Open phase
Normalize field cause.
NO
Fix power supply voltage
imbalance.
Parts 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
(L1, L2, L3, N).
∗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.
(VF069)
121