Samsung MXJ-YA1509 Series Installation Manual page 130

5. 5.
Outdoor Units installation Outdoor Units installation
4) Wiring Diagram 4) Wiring Diagram
(1) CO/HP Model (1) CO/HP Model
(2) HR Model (2) HR Model
※ ※
If the communication cable between indoor and outdoor units and the communication cable If the communication cable between indoor and outdoor units and the communication cable
among outdoor units are crossed, communication isn't available. among outdoor units are
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crossed, communication isn't available.