Hisense AUD-18HX4SUNL Service Manual page 65

6 . C O N T R O L M
6 . C O N T R O L M
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.
2.8 Pressure Protection:
When the pressure increases to a preset value, the pressure switch will
automatically protect. Compressor will stop and report the fault code protection.
O D E L
O D E L
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