Toyotomi MTN-MTG A128FS Service Manual page 34

3) Defrosting action：
℃
Fan speed
＜TH
High
＜TM
Medium
＜TL
Low
Breeze or stop
Condition 2: If the accumulated time of outdoor fan stopped but the compressor keep working due to
evaporator high temperature protection mode reaches 90 min from the end of last defrosting mode.
Condition of defrosting stop:
If any one of following conditions occurs, the defrosting will finish and the machine will turn to normal
heating mode.
Condition 1: Reached the defrosting time.
Condition 2: The current of compressor is more than I
I is depending on the exactly machine.
defrost
T2-T1
If indoor fan is in high speed and T2-T1< TH
DEFROST
If indoor fan is in medium speed and T2-T1< TM
DEFROST
If indoor fan is in low speed and T2-T1< TL
DEFROST
/ If indoor fan is breezing or stopped, start defrosting
Note
continuously more than 7s. The value of
defrost
44
, start defrosting
DEFROST
, start defrosting
DEFROST
, start defrosting
DEFROST