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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 differ
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 differ
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 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'.
❇
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
Summary of Contents for DVM S AM080FXVAGH
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