Midea MCA3U-18HRFNX-QRD0W - Page 100

Product Features
 Page 100 
iii) Installation
• Dimensions
123mm
(4.8”)
120mm
(4.7”)
18.5mm
(0.7”)
83.5mm
(3.3”)
46mm
(1.8”)
62mm
(2.4”)
• Wiring diagram
1) Connection
For Cassette type: The wired controller connects to main control board directly.
HA HB
HA HB
Main control board
Wired controller
ADSS
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
For Duct, Ceiling& floor: The wired controller connects to terminal board, terminal board connects to main control
board.
HA HB
HA HB
Terminal board
Wired controller
ENC1
Main control board
CN2
CN40
4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
4