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SM830082
IV - 25
SM830082
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Section
5
4. Service procedures
Never press (clear) button unless you want to erase the accessed data in memory. Follow
the procedure below only when erasing is necessary.
❏ To erase accessed data, press the button.
❏ When erasing is finished,“----” mark appears on the controller’s display.
After checking the alarm messages, be sure to press the button.
Important
CAUTION
c Select R.C. No. which you want to execute the auto. address operation with
button.
d Press the button. The auto. address operation will start. CODE No. changes from
flashing to ON state.
e If an error occurs during operation, the alarm message will be displayed. Check and re-
move the cause. If you want to stop the operation, press the button then the unit
stands in waiting mode (Press the button again.)
f If the automatic address operation finishes, the display will disappear.
g Execute the operation of the other R.C. line in the same way by following the above steps
c to d .
(E) Execute the auto. address operation
❏ Auto. address operation is executed by pressing the A. ADD (S1) button of out-
door unit’s PCB usually.
For your convenience it can be executed by remote controller also.
a Press the and ( ) buttons at the same time for more than 4 seconds. (Fig. IV-7)
b Set CODE No. A1 with , ( ) button.
In this mode, the auto. address
operation is executed at each R.C.
(Refrigerant Circuit) line one by one.
1931_M_I
a
b
d c
Fig. IV-7