Control for Heat Pump Models Si01-40644 Functions and Control3.6 Heating Peak-cut ControlOutline Heat Pump OnlyDuring heating operation, the signals being sent from the indoor unit allow the operatingfrequency limitation and prevent abnormal high pressure. (The signal from the indoor unit mustbe divided as follows.)Detail Conditions for Start ControllingJudge the controlling start with the indoor heat exchanger temperature after 2 sec. fromoperation start.Control in Each ZoneThe heat exchange intermediate temperature of indoor unit controls the following.3.7 Fan ControlOutline Fan control is carried out according to the following priority.1. Fan ON control for electric component cooling fan2. Fan control when defrosting3. Fan OFF delay when stopped4. ON/OFF control when cooling operation5. Tap control when drooping function is working6. Fan control when forced operation7. Fan control in low noise mode8. Fan control during heating operation9. Fan control in the quiet mode10.Fan control in the powerful mode11.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.