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Hitachi RAS-8.0HNBRMQ1 - Page 52

Hitachi RAS-8.0HNBRMQ1
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45
(3) Wired Controller Connecting Diagram
(a) Wired Controllers to each Unit for Individual Operation Setting.
(b) One Wired Controller for Individual Operation Setting.
The maximum quantity of the indoor units can be controlled by one wired controller is 16.
(c) Connecting Wired Controller if Connecting between Individual Systems.
Notes:
Thermo-ON: The outdoor unit and some indoor units are running.
Thermo-OFF: The outdoor unit and some indoor units stay on, but don’t run.
TROUBLESHOOTING

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