7 | Configuration
Installer and user reference guide
41
FXFQ20~125BVEB
VRV system air conditioner
4P561452-1B – 2021.07
Individual setting in a simultaneous operation system
We recommend using the optional user interface to set the slave unit.
Perform the following steps:
2 Change the second code number to 02 to perform individual setting on the
slave unit.
If you want to set the slave unit as… Then
(1)
M C1 C2
Unified setting 21(11) 01 01
Individual setting 02
3 Perform field setting for the master unit.
4 Turn off the main power supply switch.
5 Disconnect the remote controller from the master unit and connect it to the
slave unit.
6 Change to individual setting.
7 Perform field setting for the slave unit.
8 Turn off the main power supply or, in case of more slave units, repeat the
previous steps for all slave units.
9 Disconnect the user interface from the slave unit and reconnect it to the
master unit.
It is not necessary to rewire the remote controller from the master unit if the
optional user interface is used. (However, remove the wires attached to the user
interface terminal board of the master unit)
(1)
Field settings are defined as follows:
• M: Mode number – First number: for group of units – Number between brackets: for individual unit
• C1: First code number
• C2: Second code number
• : Default
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