Samsung AM072BXV Series Service Manual page 298

Key Options
8-4 How to check the view mode using a tact switch (cont.)
K2
(Number of press)
1 time
2 times
3 times
H/R : Checking the pipe connection
4 times H/P : Automatic setting of operation mode
5 times
6 times
7 times
8 times
9 times
10 times
11 times
12 times
13 times
14 times
15 times
16 times
※ During "Discharge mode of DC link voltage", voltage of INV1 and INV2 will be displayed alternately.
※ Even when the outdoor unit power is off, it is dangerous when you come in contact with inverter PCB and fan PCB since they are charged
with high DC voltage.
※ When pressing K2 key 9 to 12 times without inverter checker, error code can be displayed on segment even though the outdoor unit is
normal.
※ When replacing/repairing the PCB, cut-off the power and wait until the DC voltage is discharged before replacing/repairing them.
(Wait for more than 15 minutes to allow it to discharge naturally.)
※ When there were error, 'Discharge mode of DC link voltage' may not have been effective. Especially if error E464 and E364 have been
occurred, power element might be damaged by fire and therefore, do not use the 'Discharge mode of DC link voltage'.
※ In case of capless inverter do not use the Discharge mode of DC Link voltage.
※ If the 1st-generation MCU is installed, the Auto pipe pairing operation can not be used. If the 2nd-generation MCU is installed, the
Checking the pipe connection can not be used.
- 1st-generation MCU : MCU-S*NEE*N, MCU-S2NEK1N
- 2nd-generation MCU : MCU-S*NEK2N,MCU-S4NEK3N,MCU-S1NEK1N
※ If error have been occurred, do not use the key operation.
K3
(Number of press)
1 time
K4
(Number of press)
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
10 times
Samsung Electronics
KEY operation
Refrigerant charging in Cooling mode
Trial operation in Cooling mode
Pump down all units in Cooling mode
(Cooling/ Heating) for trial operation
Checking the amount of refrigerant
Discharge mode of DC link voltage
Forced defrost operation
Forced oil collection
Inverter compressor 1 check
Inverter compressor 2 check
Fan 1 check
Fan 2 check
H/R: Auto pipe paring
H/P : Unused
Baseheater testing mode
Unused
End Key operation
KEY operation
Initialize (Reset) setting
KEY operation
Capacity of Outdoor unit Model
Order frequency of the compressor 1
Order frequency of the compressor 2
High pressure (MPa)
Low pressure (MPa)
Discharge temperature (Compressor 1)
Discharge temperature (Compressor 2)
IPM temperature (Compressor 1)
IPM temperature (Compressor 2)
CT sensor value (Compressor 1)
Display on segment
"K"5"BLANK"BLANK"
"K"6"BLANK"BLANK"
"K"7"BLANK"BLANK"
"K"8"BLANK"BLANK"
"K"9" X X
(Display of last two digits may differ depending on the progress)
"K"A"BLANK"BLANK"
"K"B"BLANK"BLANK"
"K"C"BLANK"BLANK"
"K"D"BLANK"BLANK"
"K"E"BLANK"BLANK"
"K"F"BLANK"BLANK"
"K"G"BLANK"BLANK"
"K"H" X X
(Display of last two digits may differ depending on the progress)
"K"I"BLANK"BLANK"
"K"J"BLANK"BLANK"
-
Display on segment
Same as initial state
Display on segment
SEG1
1 AM160AXV*** → Off, 1, 6
2
3
4 152 MPa → 1, 5, 2
5 0 43 MPa → 0, 4, 3
6
7
8
9
A
SEG2, 3, 4
120 Hz → 1, 2, 0
120 Hz → 1, 2, 0
87 °C → 0, 8, 7
87 °C → 0, 8, 7
87 °C → 0, 8, 7
87 °C → 0, 8, 7
2 A → 0, 2, 0
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