Troubleshooting
9-2Samsung Electronics
3. If the number of the indoor units, founded by the indoor unit installation number setting
switch, is not equal to the number of the indoor units, founded in the course of the tracking,
Er and E2 are alternately displayed on the display part.
The Indoor Unit Installation Number Setting Switch
Following is an example of the switch usage according to the indoor unit installation number.
The maximum number of connectable indoor units is up to 48.
9-1-1 Initial Tracking(Check the Communication)-If an Error, display
1.
The contents displayed on the display part of the outdoor unit may be changed by the outdoor
unit whether it has the master unit or the sub unit.
1) Master Unit
1) • When inputting the power, the outdoor unit MICOM tries the communica-
tion with the indoor unit connected to the communication wire (F/F2).
1) • The two display parts on the left side display the main address of the
indoor unit that the outdoor unit tries to the connection of communication
in order. (Example: 0, 1, 2, ~, and 47)
1) • The two display parts on the right side display the main address of the
indoor unit that the outdoor unit succeeded in the communication.
(Example: 0, 1, 2, ~, and 47)
1) • If the number of indoor units, set on the outdoor unit, is not equal to the
number of indoor units, succeeded in the communication, the four dis-
play parts display E201.
2) Sub (Slave) Unit
1) - Display the MICOM address of the main PBA of the inside of the sub unit connected to the master unit alternately.
(Example: C9, CA, CB, CC, CD, CE, and DF)
2. By using the indoor unit installation number setting switch, find out the number of the indoor
unit connected to the outdoor unit.
g
SEG1
af
G1
G2
bced
SEG2
g
SEG3
af
G1
G2
bced
SEG4
Outdoor Unit Display Part
K3
Display
Reset Key
Indoor unit numbers
setting switch
3 units Connection 17 units Connection 31 units Connection 48 Units Connection
Tenth Digit Single Digit Tenth Digit Single Digit Tenth Digit Single Digit Tenth Digit Single Digit
03173148
Tenth Digit
(0~9)
Single Digit
(0~9)
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