10 Electronic function
10.1 Function
10.1.1 Cooling , Heating or Dehumidifying mode
10.1.2 With Auto switch on, off and sleep mode function
10.1.3 Ts range：Cooling：17～30℃/65～90°F；Heating：15～25℃/60～80°F；
Time delay safety control
10.1.4 With 3 fan speed mode available in high, medium, low for the upper fan system while for the
lower fan system is only available with single speed. This single fan speed is working together with
the compressor and can auto detect the any damages within
10.2 Controller Specifications
10.2.1 Normal power source: 220VAC±15％或 110VAC±15％
10.2.2 Operation temperature for electrical system
working temperature range：－10℃~＋60℃
storage temperature range：－20℃~＋70℃
relative humidity range：35~98%
10.2.3 temperature sensor：R25/50=5K、B=3470 temperature precision：±1℃
10.2.4 display ambient temperature
10.2.5
For Fahrenheit switching, please press function key for 10 s during the stand by mode.
10.3 Controller Structure
The control systems are consist of remote control, internal control display, main PCB board, and
internal receiver. While for internal PCB board output systems are consists of upper fan system
(high, medium and low) and compressor
10.4 Sensor Definitions
TA: Temperature of ambient, (T1).
TE: Temperature of evaporator, (T2).
TS: Setting temperature, (T3).
10.5 Mode
10.5.1Cooling
10.5.1.1 In cooling mode，set point temperature 17～30℃/60～90°F；starting temperature is 25℃
（77°F）。
10.5.1.2cooling mode compressor working condition:
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