Samsung FH052EAMT Service Manual page 21

Control Specification & Troubleshooting
5-1-3 Setting Up Option Switches
KEY
CHECK MODE
Summary of KEY functions
Function
Number
of press times
1
2
3
4
Use the K1 only for heat pump models.
20
K2 K4
DISPLAY
MODE
RESET
K1 K3
K1
(Displayed on SEG 3, 4)
(Displayed on SEG 3, 4)
Adding refrigerant at
heating mode
Test operation at
heating mode
Pump Down for recovery
End
-
Dispaly
SEG 1
K2
(Displayed on SEG 3, 4)
Adding refrigerant at
cooling mode
Test operation at
cooling mode
of refrigerant
End
DIS 1 DIS 2
SEG 2 SEG 3 SEG 4
K3
(Displayed on SEG 3, 4)
Displays data
Reset
-
-
-
Samsung Electronics
K4
-
-
-