Electrical Control Function
Electrical Control System 173
If the indoor unit is not connected, the digital display shows:
“――”
Average of indoor room temperature
If the temperature is lower than 0 ℃, the digital display shows
“0”.
If the temperature is higher than 70 ℃, the digital display
shows “70”.
If the temperature is lower than -9 ℃, the digital display shows
“9”.
If the temperature is higher than 70 ℃, the digital display
shows “70”.
If the capacity demand is 0, the digital display shows “0”.
If the indoor unit is not connected, the digital display shows:
“――”
If the temperature is lower than 0 ℃, the digital display shows
“0”.
If the temperature is higher than 70 ℃, the digital display
shows “70”.
If the capacity demand is 0, the digital display shows “0”.
If the indoor unit is not connected, the digital display shows:
“――”
Appendix
Frequency limit caused by current
Frequency limit caused by T2 in cooling
Frequency limit caused by T2 in heating
Preset temperature reached
Frequency limit caused by T4
High discharge temperature protection
High evaporator coil temperature T2 protection
Evaporator low temperature T2 protection
Condenser high temperature T3 protection
Low indoor room temperature protection in drying mode
Low ambient temperature protection
Refrigerant leakage detection
Communication malfunction between indoor and outdoor units
Communication error between outdoor main chip and compressor driven chip IR341
AC power input voltage protection
Top temperature protection of compressor
Temperature sensor open or short circuit
IMP overcurrent protection
Low pressure protection of 311
Fan zero speed protection
High pressure protection of 311
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