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4-4-33 MCU branch part setup error – non-installed address setup
Outdoor unit display
Indoor unit display
Criteria
• If there is an indoor unit that is not installed among MCU registered indoor units
Cause of problem
• Indoor unit, with the assigned address on MCU, not installed.
1. How to check
Find an MCU that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting,
press K3 button on the button to reset or turn it off to restart.
Indoor unit
Samsung Electronics
MCU BOX #0
OFF
4
4
Branch A
B
Indoor unit
4
Outdoorunit
PCB
MCU address setup
MCU BOX #0
MCU PCB
ON
OFF
4
4
2
1
5
Indoor unit address
Branch A
B
C
D
4
Outdoorunit
PCB
MCU address setup
MCU BOX #0
MCU address setup
0
MCU PCB
ON
Branch part use setup
2
1
5
6
Indoor unit address
C
D
E
1
5
1
1
Indoor number setup MCU number setup
MCU BOX #1
0
Branch part use setup
OFF
6
1
3
E
F
Branch A
B
5
6
5
1
2
Indoor unmber setup MCU unmber setup
MCU BOX #1
F
6
MCU PCB
1
ON
7
9
0
0
C
D
E
F
7
0
Troubleshooting
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Troubleshooting
