Samsung AM072/096/120/144FXVAFH, Service Manual

Page: 119 / 295

Troubleshooting
4-22 Samsung Electronics
Step Push button Display Description Remark
Number of connections units
Step 1 Outdoor unit display Needs to establish -
Step 2
At the same time, press the
2 seconds K1+K2
Prepared to setting on
Example)
03 : 1's Digit 3 times
64 : 10's Digit 6 times + 1's
Digit 4 times
Press K2 n times 10’s Digit (0~6)
Press K4 n times 1’s Digit (0~9)
Press the 2 seconds K4 : number of indoor units automatically senses.
Step 3 Press the 2 seconds K2, after save is ended (system reset)
Make sure that the indoor unit numbers set by the following method.
غ
Initial Tracking (Communication Check-up) - Display for Problem
1. For the display module of the outdoor unit, there are differences in the contents displayed depending on whether the relevant outdoor
unit is a master unit or a sub unit.
1) Master Unit
Ɣ
The outdoor unit Micom attempts communication with the indoor unit connected to the communication cable (F1/F2) when the power is turned on.
Ɣ
Basic segment display
Step Display content Display
At initial power input
Checking SEG
display
SEG1 SEG2 SEG3 SEG4
"8" "8" "8" "8"
While setting
communication between
indoor and outdoor unit
(Addressing)
Number of
connected indoor
units
SEG1 SEG2 SEG3, 4 SEG3, 4
"A" "d"
Number of communicated units
ఐ͑
Refer to "View Mode" for
communication address
After communication
setting
(usual occasion)
Transmit /
Reception address
SEG1 SEG2 SEG3, 4 SEG3, 4
I/U : “A”
MCU : “C”
I/U : “0”
MCU : “1”
Reception address
(in decimal number)
ఐ
I/U : Indoor unit
Ɣ
If the number of indoor units set by the outdoor unit is not in accordance with the number of indoor units that succeeded with communication, then
the four displaying parts will display
.
g
SEG1
a f
G1
G2
b c e d
SEG2
g
SEG3
a f
G1
G2
b c e d
SEG4
Outdoor Unit Display Parts