Fujitsu Airstage J-II Series Design & Technical Manual page 790

2-22. ADMINISTRATIVE INDOOR UNIT SETTING
● When multiple indoor units with separate wired remote controller are connected to one
„
branch port of RB unit (group connection), it is possible to give the cool / heat mode
selection authority to one particular wired remote controller (called master wired remote
controller).
● When the master wired remote controller setting is not performed, mode(cool/ heat)
„
selection priority goes to wired remote controller which executed first.
„ EXAMPLE
„
z Example 1 (OK)
„
z Example 2 (Prohibited)
„
When indoor units which connected to different RB units are operated by one wired remote
controller, administrative indoor unit setting cannot be performed.
Group connection (RB group)
RB unit
Set to master WRC
RB unit
Administrator setting cannot be performed.
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