Midea MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1, MSH-12CRN1, MSH-12HRN1 - Defrosting Mode

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8.4.4 Indoor Fan actions at heating mode
Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind
function prevails.
Condition
T= Indoor exchanger temp.
Indoor fan speed
T<TE1 Off
TE1<T<TE2 Low speed
Indoor exchanger temp. up
T>TE2 Setting fan speed
T>TE3 Setting fan speed
TE4<T<TE3 Low speed
Indoor exchanger temp. down
T>TE4 Off
Auto wind
Condition
T=Indoor Temp.-Setting Temp.
Indoor fan speed
T<2℃ Med. speed Room temp. up
T>2℃ Low speed.
T> 0℃ Low speed. Room temp. down
T<0℃ Med. speed
Indoor evaporator high-temperature protection
Condition
T= Indoor exchanger temp.
Compressor Outdoor fan
T<TE8 On On
TE8<T<TE7 On Off
Indoor exchanger temp. up
T>TE7 Off Off
T>TE9 Off Off Indoor exchanger temp. down
T<TE9 On On
Anti- cold air protection
T=evaporator pipe sensor temp. Indoor fan speed
T<TE14+2℃ Low speed or stop Room temp. up
T> TE14+2℃ Setting speed.
T> TE14 Setting speed. Room temp. down
T< TE14 Stop after 15 seconds Low speed
8.5 Defrosting mode
8.5.1 Conditions of defrost:
Defrosting starts when either of the following :
T3 lower than 0°c, lasts for more than 40 minutes, provided that the time period when 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
.
8.5.2 Conditions of defrost ending:
Defrosting ends when either of the following :
The time gets to 10 minutes;
T3>20°c