Fujitsu AIRSTAGE J-II Design & Technical Manual page 580

● Before activating the Automatic Address Setting function, be sure to finish setting the refrigerant
circuit addresses of outdoor units.
● Setting the addresses of indoor units automatically does not necessary mean that addresses are
assigned sequentially starting from the indoor unit which is located the closest to the outdoor units
(instead, addresses are assigned randomly).
With respect to the setting of refrigerant circuit addresses, the same address numbers of the
refrigerant circuit addresses of the outdoor units being connected within the same refrigerant
system are assigned.
● To find out what addresses have been assigned to individual indoor units, it is necessary to
perform a separate address check operation.
● When setting addresses of signal amplifiers, indoor units and RB units automatically, be sure to
always set the addresses of signal amplifiers first, set the addresses of indoor units second, set
the addresses of RB units last.
● Please be sure to finish address setting of outdoor unit and indoor unit before performing the
automatic address setting of RB unit.
1: If the total wiring length within a segment is expected to exceed 500 m, insert a signal amplifier (Refer to Chapter 5.).
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2: If the number of nodes (the number of units of indoor units, outdoor units, controllers and others) is expected to
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exceed 64 (including signal amplifiers), insert a signal amplifier (Refer to Chapter 5.).
Caution
- (07-54) -