Product Features
 Page 15 
1.  Operation Modes and Functions
1.1  Abbreviation
Unit element abbreviations
Abbreviation Element
T1 Indoor room temperature
T2 Coil temperature of evaporator
T3 Coil temperature of condenser
T4 Outdoor ambient temperature
Tsc Adjusted setting temperature
TP Compressor discharge temperature
1.2  Safety Features
Compressor three-minute delay at restart 
Compressor functions are delayed for up to ten seconds 
upon the first startup of the unit, and are delayed for up  
to three minutes upon subsequent unit restarts.
Automatic shutoff based on discharge temperature
If the compressor discharge temperature exceeds 108°C 
for nine seconds, the compressor ceases operation.
Automatic shutoff based on fan speed 
If the indoor fan speed registers below 200RPM or over 
2100RPM for an extended period of time, the unit ceases 
operation and the corresponding error code is displayed on 
the indoor unit.
Inverter module protection
The inverter module has an automatic shutoff mechanism 
based on the unit’s current, voltage, and temperature. 
If automatic shutoff is initiated, the corresponding error 
code is displayed on the indoor unit and the unit ceases 
operation.
Indoor fan delayed operation
• When the unit starts, the louver is automatically 
activated and the indoor fan will operate after a period 
of setting time or the louver is in place.
• If the unit is in heating mode, the indoor fan is 
regulated by the anti-cold wind function.
Compressor preheating 
Preheating is automatically activated when T4 sensor is 
lower than setting temperature.
Sensor redundancy and automatic shutoff
• If one temperature sensor malfunctions, the air 
conditioner continues operation and displays the 
corresponding error code, allowing for emergency use.
• When more than one temperature sensor is 
malfunctioning, the air conditioner ceases operation.
1.3  Display Function
Unit display functions
Function Display
Temperature Set temperature value
Temperature  
(fan and Drying mode)
Room temperature
Activation of Timer ON, 
Fresh, Swing, Turbo, or 
Silent 
 (3s)
Cancellation of Timer 
OFF, Fresh, Swing, 
Turbo, or Silent 
 (3s)
Defrost
Warming in heating 
mode
Self-clean (available on 
select units only)
Heating in room 
temperature  
under 8°C or 12°C
Fresh(available on select 
units only)
ECO function (available 
on select units only)
WiFi control (available 
on select units only)
The current operation 
power(available on 
select units only)
kW