Electronic Function; Electronic Control Working Environment; Proper Symbols And Their Meaning; Function - Midea MSG-30CRN1-QB9P Service Manual

10. Electronic function

10.1 Electronic control working environment

Input voltage: 198~253V
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

T1: Indoor ambient temperature
T2: Indoor evaporator temperature
T3: Outdoor condenser temperature.
TS: Setting temperature through the remote controller
I : Self-protection amp of compressor, continue three seconds until turns off the compressor.
3sec
I : Self-protection amp of compressor, continue five minutes until turns off the compressor.
5MIN
I : Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind.
FAN
I : Amp self-protection return value
RESTORE
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
TE10: Condenser high temperature protection, compressor off temperature.
TE11: Condenser high temperature protection, restoring temperature.
TE14: The indoor restoring temperature when the compressor is off on the heating mode.
TE16: The indoor evaporator temperature after the defrost action, fan on temperature.
TC1: Outdoor condenser sensor temperature for the defrost condition 1.
TC2: Condenser sensor temperature after defrost.
TC3: Outdoor condenser sensor temperature for the defrost condition 2.

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
- 22 -
Service manual