Midea MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1, MSH-12CRN1, MSH-12HRN1 - Specification

8.3 Dehumidifying mode
8.3.1 Indoor fan speed at low speed.
8.3.2 Protection is same as cooling mode.
8.1 Heating mode
8.4.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode. 4-way valve
must delay 2 minutes compared with compressor if the compressor changed into non-heating
mode or turned off. 4-way valve doesn't delay in dehumidifying mode.
8.4.2 Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except
for the defrosting mode or the end of defrost.
8.4.3 Action conditions of compressor at heating mode: compressor must run for 7 minutes after starting
and then judge temperature. Meanwhile other protections are still valid.
Condition Compressor Outdoor fan
T> Ts+4 Off Off Room temp. up
T<Ts+4 On On
T< Ts+3 On On Room temp. down
T>Ts+3 Off Off
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.
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
Anti-cold wind function 1.
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
Anti- cold air protection 2( when the room temp. satisfy the setting temp.)
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
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
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