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13.3. 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.
13.3.1. 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 first
time when compressor starts operating continuously for 7 minutes).
- Indoor heat exchanger temperature at compressor start - 3ºC < current indoor heat exchanger temperature for 1 minute.
- Indoor suction temperature - 3ºC < current heat exchanger temperature for 5 minutes.
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