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12.8 Cooling Overload Control
Pipe temperature limitation / restriction.
•
o
Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor
operation frequency)
o
The compressor stops if outdoor pipe temperature exceeds 64°C.
o
If the compressor stops 4 times in 20 minutes, Timer LED blinks.
12.9 Freeze Prevention Control
When indoor heat exchanger temperature is lower than 0°C continuously for 6 minutes, compressor will stops
•
operation.
Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 9°C.
•
At the same time, indoor fan speed will be higher than during its normal operation.
•
If the indoor heat exchanger temperature is higher than 9°C for 5 minutes, the fan speed will return to its normal
•
operation.
12.10 Freeze Prevention Control 2
Control start conditions
•
o
During Cooling operation and soft dry operation
·
During Thermo OFF condition, Indoor intake temperature is less than 10°C or
·
Compressor stops for freeze prevention control
o
Either one of the conditions above occurs 5 times in 60 minutes.
Control contents
•
o
Operation stops
o
Timer LED blinks.
12.11 Dew Prevention Control
To prevent dew formation at indoor unit discharge area.
•
This control will be activated if:
•
o
Cooling mode or Quiet mode is activated.
o
Remote control setting temperature is less than 30°C.
o
Fan Speed is at CLo or QLo.
o
Room temperature is constant (±1°C) for 30 minutes.
o
Compressor is continuously running.
Fan speed will be adjusted accordingly in this control.
•
o
Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode.
12.12 Odor Cut Control
To reduce the odor released from the unit.
•
o
Start Condition
·
AUTO FAN Speed is selected during COOL or DRY operation.
·
During freeze prevention control and timer preliminary operation, this control is not applicable.
o
Control content
·
Depends on compressor conditions:
1. Compressor OFF → Compressor ON.
The indoor unit fan stops temporarily and then starts to blow at minimum airflow for 50 seconds.
2. Compressor ON → Compressor OFF.
The indoor unit fan stops for 90 seconds and then blows at minimum airflow for 20 seconds.
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Troubleshooting
