Samsung AM072BXV Series, Service Manual

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Samsung Electronics 66
Troubleshooting
4-2 Service Operation
4-2-1 Special Operation (cont.)
K4
(Number of press)
Press and hold the K4 to
enter the setting
Displayed content
Display on segment
PAGE1 PAGE2
1 time Main version MAIN Version (ex. 1412)
2 times Hub version HUB Version (ex. 1412)
3 times Inverter 1 version INV1 Version (ex. 1412)
4 times Inverter 2 version INV2 Version (ex. 1412)
5 times Fan 1 version FAN1 Version (ex. 1412)
6 times Fan 2 version FAN2 Version (ex. 1412)
7 times EEP version EEP Version (ex. 1412)
8 times Automatically assigned address of the units AUTO
SEG1 SEG2 SEG3,4
Indoor unit: “A” MCU:
“C”
Indoor unit: “0”
MCU: “1”
Address
(ex: 07)
9 times Manually assigned address of the units MANU
SEG1 SEG2 SEG3,4
Indoor unit: “A” Indoor unit: “0” Address (ex: 15)
※ I/U : Indoor unit
K4
(Number of press)
KEY operation
Display on segment
SEG1 SEG2, 3, 4
9 times IPM temperature (Compressor 2) 9 87 °C
→
0, 8, 7
10 times CT sensor value (Compressor 1) A 2 A
→
0, 2, 0
11 times CT sensor value (Compressor 2) B 2 A
→
0, 2, 0
12 times Suction temperature C -42 °C
→
-, 4, 2
13 times COND OUT temperature D -42 °C
→
-, 4, 2
14 times Temperature of liquid pipe E -42 °C
→
-, 4, 2
15 times TOP temperature (Compressor 1) F -42 °C
→
-, 4, 2
16 times TOP temperature (Compressor 2) G -42 °C
→
-, 4, 2
17 times Outdoor temperature H -42 °C
→
-, 4, 2
18 times EVI inlet temperature I -42 °C
→
-, 4, 2
19 times EVI outlet temperature J -42 °C
→
-, 4, 2
20 times Main EEV1 step K 2000 steps
→
2, 0, 0
21 times Main EEV2 step L 2000 steps
→
2, 0, 0
22 times EVI EEV step M 300 steps
→
3, 0, 0
23 times HR EEV step N 300 steps
→
3, 0, 0
24 times Fan step (SSR or BLDC) O 13 steps
→
0, 1, 3
25 times Current frequency (Compressor 1) P 120 Hz
→
1,2,0
26 times Current frequency (Compressor 2) Q 120 Hz
→
1,2,0
27 times Suction 2 temperature (HR Only) R -42 °C
→
-, 4, 2
28 times Master indoor unit address S
Main indoor unit not selected
→
BLANK, N, D
If indoor unit No 1 is selected as the main unit
→
0, 0, 1
29 times Suction 3 temperature U -42℃→ -,4,2
30 times COND OUT2 temperature V -42℃→ -,4,2