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8-3. INDOOR – OUTDOOR CONNECTING CABLE
The cable shall not be lighter than design 245 IEC or 227 IEC.
w
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
Max. 80m
3
o
2.5 (polar) and S3 separated
1
o
Min. 2.5
Indoor unit-Outdoor unit earth
Wire No.
o
Size (
E
)
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.
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
When the shield line is not used, several dB is exceeded with 30 ~ 40 MHz .
(There is a possibility to be used by the wireless for the ship etc. though it is not used for radio and TV.)
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 (
E
)
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The optional indoor power supply terminal kit is necessary
For 100, 125, 140Y application, use shield wire. (For EMC DIRECTIVE)
The shield part must be grounded with the indoor unit or the outdoor unit, not with both.
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