MOOVAIR KJR-120NX6W/BGEF Manuel D'installation Et D'utilisation page 19

3. Installation method
unit need to be connected to the HA and HB ports at the same
time. In group control, there will be no error displayed on the
wired controller . SeeFig. 3-11
Wired Controller 1
Indoor Unit 1
HA HB
0
Putty
Trap
Indoor Unit 2
HA HB
1
Fig.3-11
Putty
Trap
Fig 3-12
15
Indoor Unit n
(n<=16)
HA HB
2
.....
Putty
Trap