Mitsubishi Heavy Industries FDT28KXE6A Service Manual page 119

5 or 6 wires
Notes 1. indicates wiring on site.
2. Use twin core cable（0.75∼1.25mm ）at signal line between indoor unit
2
and outdoor unit, and signal line between indoor units.
3. Use twin core cable（0.3mm ）at remote controller line. See spec sheet
2
of remote controller in case that the total length is more than 100m.
4. Do not put signal line and remote controller line alongside power source line.