Airwell AWAU-YDV1010-H13, Руководство по обслуживанию

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144
Failure code
Outdoor
digital
display tube:
39-1
Indoor wired
controller:
27
Indoor unit LED status
LED5 Failure description:
The unit compression ratio too high failure
20 times
Outdoor unit LED status
LED1 LED2
Normal Normal
1. Model Diagnosis and troubleshooting
Flow Logic III series
Diagnosis Troubleshooting
2. Abnormity detection method
◆
Check if the operating
compression ratio of system is
above 8 before failure alarm;
◆
Check if the unit lack of
refrigerant.
◆
Check if the pipelines on the
low pressure side or liquid side
are blocked;
◆
Check if the detection value
of high/low pressure sensor is
correct.
◆
Check if the unit is beyond
the operation range.
3. Abnormity confirmation
conditions
Alarm to shut down if the
compression ratio ε
>
8.0 is
detected for continuous 5min
after the compressor operates;
alarm to shut down if the
compression ratio ε>9.0 or
ε>8.5 when cooling or heating
for 1min separately.
4. Possible causes
◆
The detection value of high/
low pressure sensor is incorrect;
◆
The refrigerant in the system
is insufficient or the system is
with air leakage;
◆
The pipelines on the high
pressure side or liquid side of
the unit are blocked;
◆
The outdoor unit cannot be
turned on normally due to failure
to open electronic expansion of
outdoor heat exchanger when
heating;
◆
The operation environment is
beyond the allowed range.
Check if the system operating
compression ratio is above 8
before failure alarm.
Check if the refrigerant in the system
is with leakage or insufficient.
Check if the detection value of high-
low pressure sensor is correct.
Check if the pipelines on the
low pressure side or liquid
side of the unit are blocked.
Check if the allowed operation
range is exceeded.
Use the unit in accordance with
its allowed operation range.
Use the unit in accordance with
its allowed operation range.
Rectify it correctly by after-sales
personnel on site.
Troubleshoot and rectify it correctly
by after-sales personnel on site.
[Note]: Simultaneously, check if all
stop valves can be turned on.
C h e c k i f a l l t h e e l e c t r o n i c
expansion valves of the indoor unit
can be turned on normally.
Y
Y
Y
N
N
Y
N
Y
N