AUX air conditioner service manual
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compressor.
⑥Self-detecting function
Press the on-off button of the control panel and connect the electricity power, the controller
complete the self-testing function along with the following procedure:
LED digital screen displays in full screen size, operation light on(ended until the completion
of self-detection) Æelectric heating (ended until the completion of self-detection), strong fan
(ended until the high fan starts) ÆcompressorÆoutdoor fanÆfour-way valveÆhigh fanÆlow
fanÆstrong fan(ended until the completion of self-detection) Æswing up and downÆswing
right and left(last for 0.5 seconds for each swing in turn)Æbuzzer rings one time. The
condition of 30 seconds electric heating time shall be in need for the above motions.
Fault display⑷
When the fault happen，the LED numerical panel displays the corresponding code of the fault.
①Fault of the indoor room temperature sensor：
System stops, the Digital screen displays E1, and can be restored automatically.
②Fault of the indoor coil temperature sensor :
System stops, the Digital screen displays E3, and can be restored automatically.
③Fault of insufficient fluorine
System stops, the “run” indication light twinkles, and can be restored after restarting.
⑸System selection function
Selecting
position
connect（820Ω） connect（650Ω）
R20 （compressor
current）13A
（compressor current）
16A
Selecting position Break connect（10K）
R24
R25
CZ ZZ
R4 Heat pump（earth） Cooling only
R5 Outdoor coil defrosting
（earth）
Intelligent defrosting
●P series
ⅠThe basic working conditions for the operation of the controller
⑴The applicable voltage range of the electrical power: The input voltage 175 V – 253V;
⑵The input AC current frequency: 50Hz；
⑶The operating temperature for electric control: （-10~+70） ;℃
⑷The operating moisture for electric control: RH20%~RH90%;
⑸The indoor fan: Three speeds tap ironclad motor; indoor fan motor relay (220VAC/5A)×3;
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