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Case 2
● If the power cannot be turned ON separately for the indoor and outdoor units in each system:
The compressors must be run in order to automatically set the indoor unit addresses. Therefore perform this
step after completing the refrigerant tubing work.
(1) Turn ON the power to the indoor and outdoor units in all refrigerant systems.
↓
When setting addresses in cooling mode
(2) Short-circuit the mode-change pin at the outdoor unit where automatic address setting will be performed. Then
press the automatic address setting button (black).
↓
When setting addresses in heating mode
(2) Press the automatic address setting button (black) at the outdoor unit where automatic address setting will be
performed.
↓
(3) LED 1 and 2 blink alternately. The compressors begin running in Cooling (or Heating) mode. Communication for
automatic address setting begins, using the temperature changes at the indoor units.
<All indoor units are in operating status.>
↓
Address setting is completed when the compressors stop and the LED indicators turn OFF
. <Approximately 15
minutes is required for 1 system.>
If address setting fails, LED 1 and 2 blink simultaneously and the alarm contents are displayed at the remote
controller.
(4) After 1 system is completed, be sure to press the automatic address setting button (black) at the other outdoor
units to complete automatic address setting in the same way for each system.
(5) Operation using the remote controller is now possible.
Automatic address setting using the remote controller
Case 3
● If the power can be turned ON separately for the indoor and outdoor units in each system (indoor unit addresses
can be set without running the compressor):
Individual system automatic address setting: Display item code “A1.”
(1) Press the remote controller timer time button and button simultaneously. (Hold for 4 seconds or longer.)
↓
(2) Then press either the temperature setting or button.
(Confirm that the item code is “A1.”)
↓
(3) Use either the or button to select the outdoor unit to perform automatic address setting for. Then
press the button.
(“R.C.1” is displayed, and automatic address setting is performed for refrigerant system 1.)
When automatic address setting for system 1 is completed, the units return to normal stopped status.
<Approximately 4 – 5 minutes are required.>
During automatic address setting, “SETTING” blinks on the remote controller display. This display disappears
when address setting is completed.
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