Panasonic CS-MRE7PKE, Руководство по обслуживанию

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15. Protection Control
15.1 Freeze Prevention control (Cool)
š
When received freeze prevention signal from indoor unit, the compressor frequency changes according to indoor
heat exchanger temperature.
š
When indoor unit request capability OFF due to freeze condition, immediately the capability supply to targeted
indoor unit stops.
15.2 Dew Prevention control (Cool)
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When received dew prevention signal from indoor unit, which according to indoor intake temperature and indoor
heat exchanger temperature the compressor frequency changes.
15.3 Electronic Parts Temperature Rise Protection 1 (Cool)
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This control prevents electronic parts temperature rise during cooling overload condition.
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Start conditions:
o
Outdoor ambient temperature is at protection region as shown in figure below:
o
Outdoor unit total current is above 5.5A (4E/3E), 5.0A (2E18/2E15)
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Control content
o
Outdoor fan speed is adjusted accordingly.
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Control stop condition
o
When outdoor ambient temperature is back to normal region.
š
During this control, outdoor fan speed does not reduce for Quiet operation.
15.4 Electronic Parts Temperature Rise Protection 2 (Cool)
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This control prevents electronic parts temperature rise during cooling/dry operation.
š
Start conditions:
o
Total current is at protection region as shown in figure below:
š
Control content
o
Outdoor fan speed is adjusted accordingly.
š
Control stop conditions
o
When total current is back to normal region.
š
During this control, outdoor fan speed does not reduce for Quiet operation.