Functions and ControlDomestic air conditioner*Indoor fan controlmanual control: You can choose high, medium, low and automatic speed control.Automatic: When TrWhen Ts Tr Ts+35.6°F, medium speed.When Tr> Ts+35.6°F, low speed.When the airflow speed has no delay from the high to low switching, the speed should be delayed for 3minutes (remain at high speed for 3 minutes.) before the next switch.*Airgate location control: the location for the airgate can be set according to your needs.Coldair proof operation1. The indoor operation within 4 minutes after the start up is as the following diagram, the air speed can beraised only after the speed has reached a certain level.2. 4 minutes after the start up of the indoor fan, the light airflow and the low airflow will be turned to the setspeed airflow.3. In the cold air proof operation, the fan won’t stop after the start up.4. During the cold air proof operation, the indoor system will continuously send ‘indoor high speed’ signals tothe outdoor system.* Residue heat sending. The indoor fan will send the residue heat at a low speed for 12 seconds.If other conditions are satisfied, when the compressor stops, the indoor system will operate at a light speed.The indoor fan will stop when the coil temperature is below the ‘heat start temp 4’.* Defrosting. When the system receives the defrosting signal from outdoors, the indoor fan will stop and theindoor temperature display won’t change. At the time, any indoor coil malfunctions will be neglected. Whenthe outdoor defrosting finishes, the coil malfunction will still be neglected until the compressor has beenstarted up for 30 seconds. The indoor temperature display will not change and the system operates at thecold air proof mode.* Automatic heating temperature compensation: when the system enters the heating mode, the temperaturecompensation (4) will be added. When the status is switched off, the compensation will be erased.7.1.5 Strength operationThe system enters the mode after receiving the ‘strength signal’.Send strength operation signal to the outdoor system.The mode change finishes the strength operation.Entering ‘mute’, you can have normal operation or signal control such as timing to finish the strengthoperation.When the system is at the automatic option with the strength/ mute function, if the system enters the coolingHeat start temp 1Heat start temp 2Heat start temp 3Heat start temp 4Set speedLow speedLight speedFan/offFan/offKeep the highspeed. The fandoesn’t stop16