user manual

4. Service procedures
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Section
– 97 –
SM830076
(8) Automatic Address Setting Method
— For group control and central control with
multiple outdoor units —
Carry out automatic address setting with
the remote controller.
1) All auto. address operation
1 Press the TEST / CHK and ( )
buttons at the same time for more
than 4 seconds.
2 Press the SET button after
confirming the CODE No. AA (CODE
No. AA: All Auto. address operation).
After addresses are automatically set
in order for the outdoor units from
No. 1 to No. 30, the system returns
to the normal stopped state.
2) Individual auto. address operation for
each refrigerant circuit
1 To select each refrigerant circuit
individually and set addresses
automatically, press the TEST / CHK
and ( ) buttons at the same
time for more than 4 seconds, then
press the , (SET TEMP) button
once to set CODE No. A1.
(CODE No. A1: Auto. address
operation)
2 Select R.C. No. which you want to
execute the auto. address operation
with UNIT button.
3 Press the SET button. The auto. address
operation will start. CODE No. changes
from flashing to ON state.
4 If the error occurred during the
operation, the alarm message will be
displayed. Check and remove the
cause. If you want to interrupt the
operation, press the CL button then
the unit stands in waiting mode
(Press the SET button).
5 If the auto. address operation
finishes, the display will disappear.
6 Execute the operation of the other
R.C. line in the same way by
following the above steps 2 to 3.
7 Complete the auto. address operation by
pressing the TEST / CHK button.
Required time for auto. address operation:
In case of group control : a few minutes for
each R.C.
In case of central control : max. about 20
min. for each
R.C.
(9) Displaying Indoor / Outdoor Unit
Combination Numbers
Display the indoor / outdoor unit address after
automatic address setting.
1) When installing multiple units, match the
indoor unit address numbers and the
outdoor R.C. address numbers and
display them at an easy-to-check location
(near the nameplate) with an oil-based
magic marker or other indelible marker
so that the individual indoor and outdoor
unit combinations can be checked.
Example:
Outdoor Unit 1 – Indoor Units 1-1, 1-2,
1-3, ....
Outdoor Unit 2 – Indoor Units 2-1, 2-2,
2-3, ....
2) Displaying indoor / outdoor unit address
is necessary for maintenance. Always
label numbers.
*Check indoor unit address with the
remote controller. Press the TEST / CHK
button for at least 4 seconds and check
the indoor unit address with the UNIT
button. (Each time you press the UNIT
button, the address changes 1-1, 1-2, ...
2-1, 2-2, ...) The fan for only the selected
indoor unit turns on at high speed, so
check which indoor unit runs and label
the indoor unit address.
(If there is 1 outdoor unit, the addresses
are 1-1, 1-2, ...)
When you press the TEST / CHK button
again, the system returns to normal
remote control mode.
NOTE