Samsung DVM S AM140FXVAGH - Page 95

95
ENGLISH
K2 (Number of
press)
KEY operation Display on segment
1 time Refrigerant charging in Cooling mode “K” “5” “BLANK” “BLANK”
2 times Trial operation in Cooling mode “K” “6” “BLANK” “BLANK”
3 times Pump down all units in Cooling mode “K” “7” “BLANK” “BLANK”
4 times
H/R: Checking the pipe connection
H/P: Automatic setting of operation mode (Cooling/
Heating) for trial operation
“K” “8” “BLANK” “BLANK”
5 times Checking the amount of refrigerant
“K” “9” X X (Display of last two digits may dier
depending on the progress)
6 times Discharge mode of DC link voltage “K” “A” “BLANK” “BLANK”
7 times Forced defrost operation “K” “B” “BLANK” “BLANK”
8 times Forced oil collection “K” “C” “BLANK” “BLANK”
9 times Inverter compressor 1 check “K” “D” “BLANK” “BLANK”
10 times Inverter compressor 2 check “K” “E” “BLANK” “BLANK”
11 times Fan 1 check “K” “F” “BLANK” “BLANK”
12 times Fan 2 check “K” “G” “BLANK” “BLANK”
13 times
A type PBA End key operation
B type PBA
H/R : Auto pipe pairing,
H/P : Unused
“K” “H” X X (Display of last two digits may dier
depending on the progress)
14 times B type PBA End key operation
❇ During "Discharge mode of DC link voltage", voltage of INV1 and INV2 will be displayed alternately.
❇ Even when the outdoor unit power is o, 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-o 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 eective. Especially if error E464 and E364
have been occurred, power element might be damaged by re and therefore, 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 there is an A type PBA among the outdoor units installed as a module, the Auto pipe pairing operation can not be used.
K3 (Number of
press)
KEY operation Display on segment
1 time Initialize (Reset) setting Same as initial state