Mcu Branch Part Setup Error-Inconsecutive Connection With The Use Of 2 Branch Parts - Samsung AM080xXV Series Service Manual

4-3-8 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts
Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo 24℃
Indoorunit
×
display
※ ●: ON ◑: Flash ×: OFF
Criteria • When 2 branch parts are used for one indoor unit without connecting them consecutively.
Cause of
• Branch part assembly error
problem
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.
Samsung Electronics
× ◑ ◑ ×
MCU BOX #0
OFF
4 2
Branch A B
Indoor unit
4 2
MCU BOX #0
4
Branch A
Indoor unit
4
Cassette (4/Mini4 Way)
× ◑ ◑
MCU
address setup
MCU PCB 0
ON
Branch part use setup
1 2 5 6
Setting error Indoor unit address
C D E
5
address setup
MCU PCB
ON
OFF
2 2 2 5
Setting error Indoor unit address
B C D E
2 5
Wall-mounted (NeoForte)
× × ×
◑
F
6
MCU
0
Branch part use setup
6
F
6
Troubleshooting
27℃
◑ ×
4-29