Service manual
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10. Electronic function
(Just for the 5K, 7K, 9K, 12K, 16K, 18K cooling and heating mode)
10.1 Electronic control working environment
Input voltage: 175~253V
Input power frequency:50HZ
Ambient temperature: -7°C+43°C
Indoor fan normal working amp is less than 1A
Outdoor fan normal working amp is less than 1.5A
Four-way valve normal working amp is less than 1A
Swing motor: DC12V
Compressor: single-phase power supply. Its normal working amp is less than 15A
10.2 Proper symbols and their meaning
TA: Indoor ambient temperature
TE: Indoor evaporator temperature
TS: Setting temperature through the remote controller
I
3sec
: Self-protection amp of compressor, continue three seconds until turns off the compressor.
I
5MIN
: Self-protection amp of compressor, continue five minutes until turns off the compressor.
I
FAN
: Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind.
I
RESTORE
: Amp self-protection return value
TH
DEFROST
: High wind, defrosting temperature difference
TM
DEFROST
: Middle wind, defrosting temperature difference
TL
DEFROST
: Low wind, defrosting temperature difference
TE1: Anti-cold wind, from Fan Off to Breeze temperature
TE2: Anti-cold wind, from Breeze to Setting Fan Speed temperature
TE3: Anti-cold wind, from Setting Fan Speed to Breeze temperature
TE4: Anti-cold wind, from Breeze to Fan Off temperature
TE5: Evaporator low temperature protection entering temperature
TE6: Evaporator low temperature protection restoring temperature
TE7: Evaporator high temperature protection, compressor off temperature
TE8: Evaporator high temperature protection, fan off temperature
TE9: Evaporator high temperature protection, restoring temperature
10.3 Function
Remote receiving
Testing and forced running
Position set for indoor unit wind vane
LED displaying and alarm
On or off Timer
Protection for the compressor
Current protection
High temperature protection of indoor heat exchanger at heating mode
Auto defrosting and heating recovery at heating mode
Anti cold air at heating mode
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