16
OCH670
7-3. INDOOR – OUTDOOR CONNECTING CABLE
The cable shall not be lighter than design 60245 IEC or 60227 IEC.
Note: The Max. cable length may vary depending on the condition of installation, humidity or materials, etc.
Indoor unit-Outdoor unit
Outdoor power supply
Max. 45m
3
o
1.5 (polar)
1
o
Min. 1.5
Max. 50m
3
o
2.5 (polar)
1
o
Min. 2.5
Indoor unit-Outdoor unit earth
Wire No.
o
Size (mm²)
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication errors if water enters the cables and causes insufficient
insulation to ground or a poor electrical contact at the intermediate connection point.
Indoor unit-Outdoor unit
Indoor/Outdoor separate
power supply
Max. 120m
2
o
Min. 0.3
—
Indoor unit-Outdoor unit earth
Wire No.
o
Size (mm²)
Note: The optional indoor power supply terminal kit is necessary