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system will automatically resume.
2 .indoor heat interaction sensor abnormality:
Under the operation, the normal temperature ranges from 120 degree to -30 degree. When the temperature
goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the
system will automatically resume.
3 .indoor malfunction:
Out door malfunction: When the indoor system receives the outdoor malfunction codes, it will store the code
into E2 for the malfunction list resume. The indoor system will continue to operate according to the original
status, the malfunction code will not be revealed or processed.
4. transmission abnormality:
If the indoor system can't receive the outdoor system for 4 minutes, the communication abnormality can be
confirmed and reported and the outdoor system will be stopped.
7.1.13 Power cut compensation
* Entering condition: Press dormant button 10 times within 7 second, the buzzer will ring 4 times and the
present system status will be stored into the EEPROM of the indoor system.
* After entering the power cut compensation mode, the processing of the indoor system should be as the
followings:
Remote control urgency signal: operate according to the remote control and the urgent conditions, the
present status will be stored into the EEPROM of the indoor system.
* Quitting conditions: Press dormant button 10 times within 7 seconds and the buzzer will ring twice.
7.1.14 Time cutting function:
Connect the test program terminal on the mainboard after connecting the system to the power circuit. The
CPU of the main control will be 60 times faster.
7.1.15 DRED function:
Receiving the signal of DRED
If receive the DRM1 , "d1" is displayed.
If receive the DRM2 , "d2" is displayed.
If receive the DRM3 , "d3" is displayed.
7.1.16Low temperature refrigeration function:
Entering condition outdoor environment temperature below 12 degrees
outdoor environment temperature between 12 and 0 degrees the indoor fan speed increases a added
value (EE); outdoor environment temperature below 0 degrees the indoor fan speed increases another
added value (EE) again.
7.2 Value of thermistor
the corresponding symbol will be displayed.
23
Functions and control
Domestic air conditioner
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