349.5.9. Energy Save Control• During Cooling Operation, press "Economy" button at remote control to enable Energy Saving Operation• The air conditioner judges the stable condition, where the different between indoor suction temperature and setting temperatureis 1°C for 30 minutes and moderately shifts the set temperature in 0.5°C steps (Maximum 2°C) to control energy saving opera-tion.• If temperature different is out of range, energy save operation will not start.• Energy Save Operation is canceled by pressing the "Economy" button again.9.6. Test Run (Forced Cooling mode)• Test run is necessary after installation is completed.• To enable test run operation, at outdoor PCB, set the DS1 Switch 1 to ON position.• Press Test Run button for 1 second.9.6.1. Valve Error• During test run, if the 3-way valve is close, valve error is shown on wired remote control.• This control is to protect the compressor.• Valve error is detected if comply with conditions below:- Power is on for the first time and within 5 minutes from compressor starts (However, the unit is considered power on for firsttime when compressor starts operating continuously for 7 minutes).- Indoor heat exchanger temperature at compressor start - 3ºC < current indoor heat exchanger temperature for 1 minutes.- Indoor suction temperature - 3ºC < current heat exchanger temperature for 5 minutes.Energy save control time chart
