12312.12 Quiet OperationQuiet mode is use to reduce the noise of outdoor unit by reducing the frequency or fan speed.Quiet levelThere are 3 level (Level 1, Level 2, Level 3) to set by quick menu function on remote control.Control contentOnce the quiet function is select, the remote control will transmit the signal to indoor and outdoor unit.Start condition- Quiet mode is set on remote control.- Quiet mode is request ON by weekly timer.Stop conditionIf any of below condition is achieve.- OFF/ON button is pressed.- Quiet mode is OFF by remote control.- Quiet mode is request OFF by weekly timer.12.13 Sterilization ModePurpose:- To sterilize water tank by setting the required boiling temperature.Remote control setting- Days for sterilization function to start can be select.- Time of selected day to start sterilization function.- Boiling temperature (External heater is 55°C ~ 75°C, Internal heater is 55°C ~ 65°C)- Maximum operation time is 5 minutes to 1 hour.Start condition- Tank connection set to “YES” by remote control- Sterilization function selects “YES”.- Sterilization signal received from remote controller by timer.- Tank mode request ON.Stop condition- When boiling timer is completed. Boiling timer (Remote control set maximum operation time) start countingonce tank achieve boiling set temperature OR- After 8 hours of operation since sterilization start.- Tank mode request OFF.Control content:- During sterilization function activation time, target tank set temperature will internally change to boiling settemperature.- During sterilization activates, heat pump and heater (external or internal) will operate as normal tank mode toachieve the boiling set temperature.- Sterilization operation will end when stop condition is fulfill.- After sterilization is complete, tank set temperature will resume to normal operation.* Tank temperature may not achieve boiling set temperature if tank heater is select OFF OR external compressorswitch.