Service Operation; Special Operation - Samsung AG042KSVANH Service Manual

4-2. Service Operation

4-2-1. Special Operation

▶ Key input of the outdoor unit when the service enters the operation mode.
K1 (Number of press)
1times
2times
3times
4times
5times
6times
7times
8times
9times
10times
11times
12times
K2 (Number of press)
1times
2times
3times
4times
5times
6times
7times
8times
9times
10times
11times
12times
13times
▶
To use key operating function for service and maintenance when installing module/group, set as main control or cancel in module/group.
(Body control settings : Hydro control Dip S / W 1 times On,
Modules / How to ungroup : Modular Controller Installation Manual Reference)
▶
During Discharging mode, voltage of Inv1 and Inv2 will be displayed alternately.
▶
Even when the power is off, it is dangerous when you come in contact with inverter PCB, fan PCB since high pressure
DC voltage is charged to those parts.
▶
When replacing or 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 those parts to be fully discharged.
▶
When there is error, Discharge mode of DC link voltage may not have been effective. Especially when E464 and E364
error is displayed, power element might be damaged so do not use the Discharge mode of DC link voltage.
KEY operation
Refrigerant charging in Heating mode
Trial operation in Heating mode
Refrigerant discharging in Heating mode
Disuse
Disuse
Disuse
Vacuum
Disuse
Disuse
Disuse
Disuse
End KEY operation
KEY operation
Refrigerant charging in Cooling mode
Trial operation in Cooling mode
Pump down all units in Cooling mode
Auto 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
End KEY operation
30
Display on 7-Segment
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Display on 7-Segment
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" " " " "x" "x"
(Display of last two digits may differ
depending on the progress)
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