Hitachi PC-ARF Technical Catalogue page 395

5 Centralised remote controls
PSC-A64S
Procedure of master unit setting
a. Screen change for Master Unit Setting keep depressing the "CHECK" switch for
3 seconds during all the indoor unit is stopped (with "RUN" indicator OFF). The
"CHECK" indicator turns ON, and it shows the state is changed to the CHECK mode.
In addition, "1" (master unit setting mode) is turns ON at the 7-segment indicator for
checking.
b. Select Zone to be set depress the "ZONE" switch, and the flickering indication of zone
Nº is changed in order as shown below.
c. Select of Group Nº. to be set select the group to be set by depressing the "GROUP"
switch.The flickering indication of group Nº is moved in order as shown below every
time the "GROUP" switch depressed.
i. When the main unit of the selected group is already set, the Ref. Nº and I.U. Add.
of the main unit already set are indicated and the "SET" indication appears.
d. Selection of Indoor Unit to be set select the refrigerant system address and indoor
unit address to set. The refrigerant system address is changed by depressing ""
(TEMP) switch and the indoor unit address is changed by depressing "(" (TEMP)
switch in order as shown below. In this case, the switch is kept depressing, and the
indication of the refrigerant system address or the indoor unit address is fast-forward-
ed.
C A U T I O N
• When the indication of Ref. Nº is "- -", the indication of I.U. Add. is also "- -". In such a case, I.U. Add. can not be changed although
∆
the " " (TEMP) switch is depressed.
• Ref. Nº with no indoor unit connected and I.U. Add. not connected are not indicated.
• The indoor unit already set as the master unit is not indicated.
e. Setting Procedure
Depress the "RUN/STOP" switch after selecting indoor unit, the indicated unit is set
as the master unit, and the "" and "SET" indications appear. The "" indicator of
zone turns ON when there is one or more group with the master unit set.
f. Perform the master unit setting procedure b. to e. for each group and zone.
g. After completion of the master unit setting, change the mode to the standard state by
depressing "RESET" switch.
C A U T I O N
• When there is any group in operation (with "RUN" indicator ON), the "CHECK" mode is not available.
• Only one indoor unit can be set as the master unit in one group. Other indoor unit can not be set as the master unit for the group with
the master unit set already. For setting the master unit as the master unit for another group, cancel the present master unit setting
and perform the setting for another group.
• In case that there are indoor units with auto-louver and indoor units without auto-louver in the same group, set the indoor unit with
auto-louver as the master unit. If the indoor unit without auto-louver is set as the master unit, the auto-louver setting is not available
for all the units of the group.
• When setting the remote control switch group without transmission line between indoor units, the indoor unit connected with the re-
mote control switch shall be set as master unit.
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TCGB0106 rev.0 - 12/2014
The above figure shows the
case of selecting Zone "2".
The above figure shows the
case of selecting Zone "2"
and group "5".
The above figure shows the
case of selecting Ref. Nº. "3"
and I. U. Add. "6".
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