Midea Blanc ON-OFF Series

DM16-01.01.07en Blanc On-off
Service manual 43
10.4.3 Heating Mode
10.4.3.1 Compressor running rules:
When indoor room temp.T1 is higher than setting value the compressor and outdoor fan will shut off.
T1
Off
On
10.4.3.2 Outdoor fan running rules:
The outdoor units have single fan speed. The outdoor fan will run following the compressor except
when AC is in evaporator high temp. protection in heating mode , condenser high temp. protection in
cooling mode ,defrosting mode and the current protection.
10.4.3.3 Indoor fan running rules:
When the compressor is on, the indoor fan can be set to high/med/low/auto. And the anti-cold wind
function has the priority.
Auto fan action:
T1-TS
Low
Medium
The indoor fan speed will adjust according to the value of T1-T
S
.
10.4.3.4 Defrosting mode：
For MSMAA-07HRN1-QC2, MSMAA-09HRN1-QC2, MSMAB-12HRN1-QC2 ,
MSMAC-18HRN1-QC2 models:
AC will enter the defrosting mode according to the value of temp difference between T2 and T1, and
also the compressor running time.
During the defrosting mode, the compressor keep running, indoor and outdoor motor will stop, defrost
lamp of the indoor unit will be lighted .“
.” Will be displayed.