Dehumidifying Mode; Heating Mode - Midea MSG-30CRN1-QB9P Service Manual

EVAP. temp. down
Compressor and outdoor
Condenser high temperature protection (only for heat pump)

10.7 Dehumidifying mode

Indoor fan speed at low speed.
Protection is same as cooling mode.

10.8 Heating mode

10.8.1 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
10.8.2 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
10.8.3 Action of compressor and outdoor fan motor at heating mode: compressor must run for 7
minutes after starting and then judge temperature. Meanwhile other protections are still valid.
* This parameter can be changed from 0 to 3
10.8.4 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
- 25 -
fan off (after 5 mins)
TE5
Service manual
Compressor and
outdoor fan on
TE6
EVAP. temp. up
T