Hisense AUD-18UX4SGKL Service Manual page 65

6 . C O N T R O L M
6 . C O N T R O L M
To prevent indoor air conditioner evaporator temperature is too low, the indoor coil sensor for real
time detection of evaporator. If the indoor coil temperature is too low, the compressor will protect.
2.2 Overload Protection
Air can heat exchanger temperature sensor for monitoring, when the sensor when the
temperature is too high, the compressor will be automatic protection
2.3 Exhaust temperature protection
To prevent deterioration due to high exhaust temperature of compressor, the machine will realize
the real-time detection of the temperature of exhaust gas. If the temperature is too high compressor
automatic protection
2.4 Oil-return Control
When the compressor runs for a long time low frequencies, control system will start the return oil
program. The system in the oil return to the compressor.
2.5Operation Mode
Air conditioning mode is the operation mode set by users through remote controller, four modes
are available: cooling, heating, dehumidification, as well as fan mode.
2.6 Four-way Valve Control
Four-way valve of the outdoor machine shuts down when cooling and defrosting but starts when
heating. During the heating process, the four way valve to stop working for a period of time after
compressor disconnect.
2.7 Start-up Protection:
To prevent compressor from restart frequently in the condition that system pressure has not
been completely balanced, it can't be restarted within 3 minutes.
O D E L
O D E L
63