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Hitachi PSC-A64S
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Group register
Register Group
Set
Register the connected indoor units to groups and blocks of the central station.
Denitions
Group :
The minimum operation unit controlled by one central station. 1 remote control group is considered as 1 group, and
the same setting is applied to the entire group. A maximum of 32 groups (organized as 4 blocks with 8 groups each, 8
blocks with 4 groups each, 2 blocks with 16 groups each or 16 blocks with 2 groups each) can be controlled with one
central station.
Block:
An operation unit composed of several groups. The central station organizes blocks in patterns of 4 blocks with 8
groups each, 8 blocks with 4 groups each, 2 blocks with 16 groups each or 16 blocks with 2 groups each.
Remote Control Group:
A group of multiple indoor units (max. 16) connected by the transmission line of the remote control switch. The same
settings are applied to all the indoor units in the same remote control group.
Main Unit:
The representative unit of the remote control group. The central station transmits control orders to this representative
unit.
Sub Unit:
Indoor units other than the main unit of the remote control group.
PSC-A32MN
Indoor unit
Outdoor unit
Remote control
switch
Without
transmission
wiring
Group
Group Group
Group
GroupGroup
Block
Block
One remote control switch
equals to one group
One unit is also handled as
one group
Without remote control switch, one
indoor unit equals to one group
5 Centralised remote controls
PSC-A32MN
TCGB0106 rev.0 - 12/2014
304

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