Electronic Function; Abbreviation; Display Function - Toyotomi MTN-MTG A128FS Service Manual

8. Electronic function

8.1 Abbreviation

T1: Indoor ambient temperature
T2: Coil temperature of indoor heat exchanger
T3: Coil temperature of outdoor heat exchanger
T4: Outdoor ambient temperature
T5: Compressor discharge temperature

8.2 Display function

8.2.1 Icon explanation on indoor display board.
Auto indicator:
This indicator illuminates when the air conditioner is in AUTO operation.
Timer indicator:
This indicator illuminates when TIMER is set ON/OFF
PRE.-DEF. Indicator(only for heat pump models)
This indicator illuminates when the air conditioner starts defrosting automatically or
when the warm air control feature is activated in heating mode.
OPERATION indicator:
This indicator illuminates when the air conditioner is running.
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