Control Specification SiBE12-81776 Function and Control3.8 Fan ControlOutline Fan control is carried out according to the following conditions.1. Fan ON control for electric component cooling fan2. Fan control when defrosting3. Fan OFF delay when stopped4. ON/OFF control when cooling operation5. Fan control when the number of heating rooms decreases6. Fan control when forced operation7. Fan control in indoor / outdoor quiet operation8. Fan control for pressure difference upkeepDetail Fan OFF Control when Stopped Fan OFF delay for 60 seconds must be made when the compressor is stopped.Fan control when the number of heating room decreases (Only for Heat Pump Model)When the outdoor air temperature is more than 10°C, the fan must be turned OFF for 30seconds.Tap ControlOn cooling, the fan tap changes L M when the outdoor air temperature is 8°C,and M H at 37°C.On heating, the fan tap changes L M when the outdoor air temperature is 12°C, andM H at 4°C.For SkyAir models, the fan starts when the outdoor air temperature is more than 37°C oncooling, or less than –4°C on heating, or when 60 seconds have elapsed.Tap Control in Indoor Unit Quiet Operation1. When Cooling OperationWhen the outdoor air temperature is less than 37°C, the fan tap must be set to L.2. When Heating OperationWhen the outdoor air temperature is more than 4°C, the fan tap must be turned to L (only forheat pump model).3.9 Liquid Compression Protection Function 2Outline In order to obtain the dependability of the compressor, the compressor must be stoppedaccording to the conditions of the temperature of the outdoor air and outdoor heat exchanger.Detail Heat Pump Model Operation stops depending on the outdoor air temperature.Compressor operation turns OFF under the conditions that the system is in cooling operationand outdoor air temperature is below –10°C.Cooling Only Model Operation stops depending on the outdoor air temperature.Compressor operation turns OFF under the condition that outdoor air temperature is below–10°C.
