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12.10 Cooling Overload Control
•
Pipe temperature limitation / restriction.
Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor
o
operation frequency)
The compressor stops if outdoor pipe temperature exceeds 145.4°F.
o
If the compressor stops 4 times in 20 minutes, Timer LED blinks ("F95" indicated: Outdoor high pressure rise
o
protection)
12.11 Freeze Prevention Control
•
When indoor heat exchanger temperature is lower than 32°F continuously for 6 minutes, compressor will stops
operation.
•
Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 55.4°F.
•
At the same time, indoor fan speed will be higher than during its normal operation.
•
If the indoor heat exchanger temperature is higher than 55.4°F for 5 minutes, the fan speed will return to its
normal operation.
12.12 Freeze Prevention Control 2
•
Control start conditions
During Cooling operation and soft dry operation
o
During thermo OFF condition, indoor intake temperature is less than 50°F or
Compressor stops for freeze prevention control
Either one of the conditions above occurs 5 times in 60 minutes.
o
•
Control contents
Operation stops
o
Timer LED blinks and "H99" indicated
o
12.13 Dew Prevention Control
•
To prevent dew formation at indoor unit discharge area.
•
This control will be activated if:
Cooling mode or Quiet mode is activated.
o
Remote control setting temperature is less than 77°F.
o
Fan Speed is at CLo or QLo.
o
Room temperature is constant (±33.8°F) for 30 minutes.
o
Compressor is continuously running.
o
•
Fan speed will be adjusted accordingly in this control.
Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode.
o
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Troubleshooting
