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7-7-4. Remote Controller Distinction Function
This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for
a refrigerant circuit system by using switches on the interface P.C. board of the header unit.
<Distinction procedure>
Power ON
Set the display select switches on the
interface P.C. board of the header unit
as follows:
Set SW01/SW02/SW03 to [2/4/1]
Press the push-switch SW04 on the
same board for 2 seconds or more.
"Checking" display of the connected
remote controller flashes.
Press the push-switch SW05 on the
interface P.C. board of the header
unit for 2 seconds or more.
Be sure to turn on the power of the indoor unit
prior to the power of the outdoor unit.
7-segment display
[
A 1
7-segment display
[
A 1
Interface P.C. board
[A]
[B]
] [
]
[A]
[B]
] [
FF
]
Check the connected remote controller
End
Other end conditions:
1. 10 minutes has passed
2. SW01, SW02, or SW03 changed to other position.
7-segment display [A]
SW04
SW01
SW02
<Rotary switches>
– 151 –
Operation
7-segment display [B]
SW05
SW03
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