Installation Method - Midea MD-CCM04/E Owner's Manual

5. INSTALLATION METHOD

When a weekly schedule controller is needed, a small 2-cores wire and
3-cores wire should be added. Connect like the following figure.
Weekly Schedule
Controller
Yellow
Brown
Black
Red
White
4
2-cores wire
To display board
+5V
GND
E
To main board
Y
X
3-cores wire
+5V
INDOOR UNIT
GND
E
Y
X