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Indoor unit – Outdoor unit wiring for PUHZ-RP4, 5, 6YHA
The cable shall not be lighter than design 245 IEC or 227 IEC.
The cable length may depending on the condition of installation, humidity or materials, etc.
Indoor unit-Outdoor unit
Max. 45m
3
o
1.5 (polar)
1
o
Min. 1.5
If 1.5
E
used, Max. 45m.
If 2.5
E
used, Max. 50m.
If 2.5
E
used and S3 separated, Max. 80m.
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.)
For 4, 5, 6Y application, use shield wire. (For EMC DIRECTIVE)
The shield part must be grounded with the indoor unit or the outdoor unit, not with both.
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.)
OC294-D-1.qxp 05.3.9 11:01 AM Page 21
