Fujitsu AJ 126LELDH Series Design & Technical Manual page 857

¢ Example of setting flow
 Example 1: Setting both addresses of signal amplifiers and indoor
units automatically
CAUTION
• Complete the refrigerant circuit address setting of outdoor units before activating the automatic
address setting function.
• Setting the indoor units addresses automatically does not necessarily mean that the addresses
are assigned sequentially starting from the indoor unit which is located the closest to the out-
door units. (Instead, addresses are assigned randomly.)
With respect to the setting of refrigerant circuit addresses, the same address numbers of the re-
frigerant circuit addresses of the outdoor units being connected within the same refrigerant sys-
tem are assigned.
• To find out what addresses have been assigned to individual indoor units, perform a separate
address check operation.
(1)
(2)
1
Master unit
(3)
Signal
2
amplifier
Master unit
(1)
2
*2
(4)
3
Master unit
1. Activate the automatic address setting function of signal amplifier on the master unit of Refrig-
erant system 1. (1)
An address is automatically assigned to all signal amplifiers on the network.
(Because an address is also assigned to the signal amplifiers being connected in Refrigerant
system 2 and3, its is not necessary to perform the automatic address setting of these signal
amplifiers again on the master units of Refrigerant system 2 and 3.)
2. Activate the automatic address setting function of indoor unit on the master unit of Refrigerant
system 1. (2)
An indoor unit address and a refrigerant circuit address are automatically set up for all indoor
units being connected in Refrigerant system 1.
3. Activate the automatic address setting function of indoor unit on the master unit of Refrigerant
system 2. (3)
An indoor unit address and a refrigerant circuit address are automatically set up for all indoor
units being connected in Refrigerant system 2.
4. Activate the automatic address setting function of indoor unit on the master unit of Refrigerant
system 3. (4)
An indoor unit address and a refrigerant circuit address are automatically set up for all indoor
units being connected in Refrigerant system 3.
1-5. Automatic address setting
Refrigerant system 1
2 12 8 21 4
1 1 1 1 1
Refrigerant system 2
3 1 4 25 6
2 2 2 2 2
Refrigerant system 3
12 18 1 10 23
3 3 3 3 3
Signal amplifier
(1)
1 26
1
1 1
(2)
8 17 11
2 2 2
(3)
4 22 8
3 3 3
(4)
- (07-61) -
* 1
18 3 Indoor unit address No.
1 1 Refrigerant circuit address No.
Indoor unit address No.
28
2 Refrigerant circuit address No.
Indoor unit address No.
9
3 Refrigerant circuit address No.
1. System settings