Hitachi PC-ARF Technical Catalogue page 100

4 Individual remote controls
PC-ARF
4 Determine the new indoor unit address.
Press " " to switch the refrigerant cycle number and address in
range of 00-63.
To display confirmation screen press "OK".
* "Cycle No.99" is used as a temporary address only when all the cycle
numbers and unit numbers are in use (occupied).
If "Cycle No.99" is used temporarily, the address must be changed within
the standard range of 00-63.
5 Select "Yes" in the confirmation screen and press "OK" to start address
change process. Then, the result is displayed in seconds. If "No" is
pressed, the screen goes directly to step 6.
*When the process successfully completes, "Completed" is displayed.
Otherwise the process has been failed. Check the setting and contents
again.
6 To change the address for another indoor unit, select "I.U. Select" and
press "OK". Then, the screen returns to step 3. To finish this function,
select "Completed" and press "OK".
*If "I.U. Address Change" is successfully completed, connection check is
automatically started.
7 Turn OFF the power supply of the indoor units for 3-5 minutes. Wait until the remote control switch display turn off,
and turn ON the power supply of indoor units again.
N O T E
• "I.U. Address Change" is not available when the control of 2 remote control switches (main and sub) are used.
• Do not operate from the central controlling devices while "I.U. Address Change" is performed by the remote control switch.
• This function should not be used if there is a Central Control (like CSNET WEB) in the H-LINK line.

Address Check Operation
This function is used to check the relation between the indoor unit and I.U. address. This operation is effective when multi-
ple indoor units are connected to the remote control switch and address of the certain unit is unknown.
1 Press and hold " " (menu) and " " (return) simultaneously for at least
3 seconds during the normal mode (when unit is not operated). The test
run menu is displayed then.
2 Select "ADD Check Operation" from the test run menu pressing "
and "OK".
3 Select the indoor unit by pressing "
4 To start operation of the indoor unit selected in step 3, press " " (run/stop).
To return to the step 3 screen press " " (run/stop) while indoor units is
operated.
*Repeat the steps 3 and 4 until desired indoor unit addresses are confirmed.
84
TCGB0106 rev.0 - 12/2014
".
I.U. Address Change: 02-04
Set refrigerant system No.
and address after indoor
unit address change.
REF. SYS Address
-
SEL.
Change address
from 02-04 to 02-05?
Completed.
Completed
I.U. Select
"
01-01 02-01 03-01
01-02 02-02 03-02
01-03 02-03 03-03
01-04 03-04
5
04-01
04-02
04-03
04-04