Daikin VRVII, Руководство пользователя

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Troubleshooting by Indication on the Remote Controller
238
Troubleshooting
NO
YES
YES
NO
NO
YES
Is the
voltage
imbalance applied
to the inverter in
excess of 14 V (YL)
and 10V (TL)?
∗
2
Imbalance in
supplied voltage is
in excess of 14 V (YL)
and 10V (TL).
∗
1
Open phase
Normalize field
cause.
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) Magnetic
contact
disposition,
fusion or
contact is
poor.
(3) Loose or
disconnected
noise filter
<When voltage monitoring is possible:>
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
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Fix power
supply voltage
imbalance.
Open phase?
measure
Explanation for users
Give the user a copy of
"notification of inspection
results" and leave it up to him
to improve the imbalance.
Be sure to explain to the user that
there is a "power supply imbalance"
for which DAIKIN is not responsible.
∗
In accordance with "notification of inspection
results" accompanying spare parts.
∗
1. Measure voltage at the power
supply terminal block.
∗
2. Measure voltage at terminals
L1, L2 and L3 of the diode
module inside the inverter
while the compressor is
running.