Hitachi RPK-1.0FSNH2M Installations- Und Betriebshandbuch Seite 16

5
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5. ELECTRICAL WIRING
5.1. ELECTRICAL WIRING CONNECTION FOR INDOOR UNIT
valve outside units. See also the 'Installation and Operation
Manual' of the expansion valve kit for the wiring work.
"wired" side.
NOTE:
In the case of "twin" or "triple" combination, if the H-Link
wiring between Indoor Units are wrong, only one unit (Nº
1) will run without an alarm during "Test Run" mode.