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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
End
Check the connected remote controller
Operation
7-segment display
[A] [B]
[
A 1
]
[
]
7-segment display
[A] [B]
[
A 1
]
[
FF
]
Be sure to turn on the power of the indoor unit
prior to the power of the outdoor unit.
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.
Other end conditions:
1. 10 minutes has passed
2. SW01, SW02, or SW03 changed to other position.
Interface P.C. board
SW04
SW05
SW02
SW03
SW01
7-segment display [A]
7-segment display [B]
<Rotary switches>
