19
Installation
TWIN UNIT CONNECTION
The indoor unit and the outdoor unit are powered separately. The 2 indoor units must be connected to the same power
supply source.
The S1 and S2 terminals of both indoor units must be connected to the S1 and S2 terminals of the outdoor unit, but S1
and S2 can be connected non-polarised.
Outdoor unit
Indoor unit 1
Indoor unit 2
Fig. 24
TWIN configuration
Outdoor unit power
supply
Indoor unit power
supply
Signal
no.of cables/cross
section
no.of cables/cross
section
no.of cables/cross
section
70M + 70M
indoor units
140T
outdoor unit
4 x 2.5mm
2
+ G
2 x 2.5mm
2
+ G
2 x 0.2mm
2
105M + 105M
indoor units
160T
outdoor unit
4 x 2.5mm
2
+ G
2 x 2.5mm
2
+ G
2 x 0.2mm
2
