Midea MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1, MSH-12CRN1, MSH-12HRN1 Manual page 136

A: The compressor keeps running for 40 minutes or more.
B: The temperature difference of evaporator temp and room temperature meets one of
the following:
¢ Ú 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.
8.9.2 Defrosting time
If the temp. difference condition ¢ Ù
regarded as severe frosting. The defrosting time is 10 minutes.
If the temp. difference condition ¢ Ú
time is 6 minutes.
If the temp. difference condition ¢ Ù
defrosting time is 6 minutes, after three continuous 6-minute defrosting , the fourth
defrosting time is 10 minutes. The circulation is as following:
¡ ú 6-minute defrost ¡ ú
8.9.3 Ending condition of defrosting
If one of following conditions is satisfied, end the defrost and turn into heating:
A. The defrost time has reached to 6 or 10 minutes.
B. The compressor current has reached to I
models.
8.9.4 Defrosting Actions:
Compressor
4-way Valve
Outdoor Fan
Indoor Fan
8.9.7 Turn into heating mode, turn off the heating mode in 7 minutes
8.10 Automatic operation mode
¡ æ
Fan speed is high
Fan speed is mid
Fan speed is low
Breeze
6-minute defrost¡ ú 6-minute defrost¡ ú 10-minute defrost¡ ú
Defrost 10or 6minutes
45S
40S
10S
Temp. of evaporator---room temp.
¡ Ü TH
¡ Ü TM
¡ Ü TL
Meet only if it is Breeze
is satisfied for less than 40 minutes, this can be
is satisfied for more than 40 minutes, the defrosting
is satisfied out of 40 minutes, generally the
or above, I
DEFROST
25S
23S
154
DEFROST
DEFROST
DEFROST
differs in different
DEROST