Hitachi PSC-A32MN Installation And Operation Manual page 39

Operation
5.2.2.4 Simultaneous Run/Stop for each Block
1 Select the target block from the touchscreen display to set simultaneous Run/Stop operation.
2 Tap "Run by Block" to run all the groups in the selected block simultaneously.
Tap "Stop by Block" to stop all the groups in the selected block simultaneously.
3 The confirmation window is displayed. Tap "Yes". for simultaneous operation of all the groups (all the indoor units) in the selected
block connected to the central station. Tap "No" to cancel this command.
(3)
31 PMML0332A rev.0 - 05/2015
?
N O T E
The commands to run by block and stop by block have no effect on the
groups specified in "Exception Setting of Run/Stop Operation".
(1)
(2)