Midea MSV1-07CR-QB8F - Defrosting Mode(Available for Heating Mode)

Service manual
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9.8.6 Indoor evaporator high-temperature protection at heating mode
(T=indoor exchanger temp.)
The louver opens to Standard Angle ANGLHEAT when power is on for the first time
9.9 Defrosting mode(available for heating mode)
9.9.1 Defrosting condition:
Defrost starts when either of the following:
T3 lower than 0’C, lasts for more than 40 minutes, provided that the time period then the temperature
is lower than -3’C consecutively reaches 3 minutes.
Calculate from the end of latest defrost, evaporator high temp. protection only closes outdoor fan
with the compressor still running. Add up to 90 minutes.
9.9.2 Conditions of defrost ending:
Defrosting ends when either of the following:
The time gets to 10 minutes.
T3>20’C.
The circulation is as following:
9.9.3 Defrosting Actions
Compressor
Outdoor fan
4-way valve
Indoor fan
Defrost 10 or 6 minutes
25s
5s
10s
2s
Remark: when the evaporator pipe temperature sensor more than TE16, the indoor fan start to run.