Control Specification SiUS04111142 Function and Control3.8 Outdoor Fan Control1. Fan OFF delay when stoppedThe outdoor fan is turned OFF 70 seconds after the compressor stops.2. Fan ON control to cool down the electrical boxThe outdoor fan is turned ON when the electrical box temperature is high while the compressor isOFF.3. Fan OFF control while defrostingThe outdoor fan is turned OFF while defrosting.4. Fan ON/OFF control when operation starts / stopsThe outdoor fan is turned ON when the operation starts. The outdoor fan is turned OFF when theoperation stops.5. Fan speed control while forced cooling operationThe outdoor fan is controlled as well as normal operation while the forced cooling operation.6. Fan speed control while indoor unit quiet operation (15/18/24 class)The rotation speed of the outdoor fan is reduced by the command of the indoor unit quiet operation.7. Fan speed control for POWERFUL operation (15/18/24 class)The rotation speed of the outdoor fan is increased while the POWERFUL operation.8. Fan speed control for pressure difference upkeepThe rotation speed of the outdoor fan is controlled for keeping the pressure difference while coolingwith low outdoor temperature. When the pressure difference is low, the rotation speed of the outdoor fan is reduced. When the pressure difference is high, the rotation speed of the outdoor fan is controlled as wellas normal operation.3.9 Liquid Compression Protection FunctionOutline In order to obtain the dependability of the compressor, the compressor is stopped according to theoutdoor temperature and temperature of the outdoor heat exchanger.Detail Operation stops depending on the outdoor temperatureCompressor turns off under the conditions that the system is in cooling operation and outdoortemperature is below 0°C (32°F).
