8.3 Connecting the outdoor unit
Proceed as follows to connect the line:
1. Remove the side-panel cover.
2. Choose a cable-section according to the rele-
vant specifications.
3. Connect the lines as shown on the electrical
connection diagram.
4. Fix the line in the strain relief and re-
assemble the unit.
Fig. 42: Connecting the outdoor unit
8.4 Electrical wiring diagram
Connection ML 263 DC-523 DC
BA
230V/1~/50 Hz
L N PE L(1) 1 2(N) S L(1) 1 2(N) S PE PE
2
1
Fig. 43: Electrical wiring diagram
A: Outdoor unit ML 263 DC AT-523 DC AT
B: Indoor unit ML 263 DC IT-523 DC IT
1: Power supply
2: Communication line
35
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