Indication of Option Setting Mode
When the central station is changed to the slave unit setting mode, the LCD indication on the
central station is as shown below. The indication of the group to be set is flickered. The Ref. Nº
and I.U. Add. indicates the address of the indoor unit which is set as the master unit of the group
to be set. The " " indication of group flickers in case that the option setting is already done.
When the "SET" indication appears, the indoor unit indicated on LCD is already set with the
Ref. Nº. of Indoor Unit Set as Master
Unit of Group To Be Set
"A" shows the option setting mode.
Only the zone with group as the
master unit is indicated. The zone
No. to set is fl ickered.
The state of option setting of each zone is indicated.
ON: There is one or more group with option
setting in the zone.
OFF: There is no group with option setting in the zone.
a. Depress the "CHECK" switch and select the setting item A – E.
b. Select the group to be set by depressing the "ZONE" switch and the "GROUP" switch.
Refer to the "4.1. Group setting procedure" (page 7), for the group selection procedure.
c. Depress the "RUN/STOP" switch, the selected group is subject to option setting and
the " " indication and the "SET" indication turn ON.
When there is one or more group with indoor unit set with option in the zone, the zone
indication " " turns ON.
Every time the "RUN/STOP" switch is depressed, the " " indication and the "SET" indication turn
ON and OFF alternately, and the state of option setting is changed; the selected group is to be
set/not to be set with option setting.
- In case that the optional functions are set by the central station, it is required to set the same
optional functions for the group by the remote control switch.
- In case that the optional functions (items A – E as shown above) are set by the remote control
switch, it is required to set the same optional functions for the group by the central station.
- The group, which is set with both of the fixing set temperature (option setting) and
"Demand 3" function, is back to the former set temperature (before Demand ON) when the
demand signal is OFF.
When the "SET" indication appears, the indicated
indoor unit is set with the optional function.
Address of indoor unit set as master
unit of group to be set.
When the "CHECK" indication
appears,the central station is in the
Only the group with the master unit is
indicated. The group to set is
Condition of Option Setting
for each Group.
( is ON: Option is set.
is OFF: Option is not set.)