Testing Operations - Samsung AC Series Installation Manual

Testing operations

1. Check the power supply between the outdoor unit and the auxiliary circuit breaker.
1 phase power supply : L, N
3 phase power supply : R, S, T, N
2. Check the indoor unit.
1) Check that you have connected the power and communication cables correctly. (If the power cable and
communication cables one mixed up or connected incorrectly, the PCB will be damaged.)
2) Check that the thermistor sensor, drain pump/hose, and display are connected correctly.
3. Press K2 on the outdoor unit PCB to run the test mode and stop.
Key Push type
K2 Short
K3 Short
K1 K2 K3 K4
AC030/036/042/060
4. After 12 minutes operation check discharged air temperature of indoor unit
Cooling mode (indoor unit check)
5. How to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode):
Outdoor unit types A, B : Refer to Outdoor unit dimensions on page 6.
Press K3 button over 1 sec to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode).
❋ Eco mode : Standby for minimizing power consumption
6. View mode: When the K4 switch is pressed, you can see information about our system state as below.
K4 short push Display contents
1 Order frequency
2 Current frequency
3 The number of preset indoor units
4 Ambient temperature sensor
5 Compressor discharge sensor
6 Eva-Mid sensor
7 Condensor sensor
8 Current
9 Outdoor fan RPM
10 Target discharge temperature
11 EEV
12 The capacity sum of indoor units
13 Protective control
14 IPM temperature
15 The number of connected indoor units
1st
2nd Inverter check
3rd
1st Reset Release Eco mode
Inlet air temp. - Outlet air temp.: From 10°C to12°C
SEG1 SEG2
1 Hundreds digit
2 Hundreds digit
3 Hundreds digit
4 + / -
5 Hundreds digit
6 + / -
7 + / -
8 Tens digit
9 Thousands digit
A Hundreds digit
B Hundreds digit
C Tens digit
0: Cooling
D
1: Heating
E Hundreds digit
F Hundreds digit
Mode
Cooling test
Pump down
AC012/018/024
SEG3
Tens digit
Tens digit
Tens digit
Tens digit
Tens digit
Tens digit
Tens digit
Units digit
Hundreds digit
Tens digit
Tens digit
Unit digit
Protective control
0: No Protective control
1: Freezing
2: Non-stop defrosting
3: Over-load
4: Discharge
5: Total electric current
Tens digit
Tens digit
Display
SEG 1 SEG 2 SEG 3 SEG 4
K1 K2 K3 K4
SEG4 Unit
Units digit
Units digit
Units digit
Units digit
Units digit
Units digit
Units digit
The first place of decimals
Tens digit
Units digit
Units digit
The first place of decimals
Frequency status
0: Normal
1: Hold
2: Down
3: Up_limit
4: Down_limit
Units digit
Units digit
English
Hz
Hz
EA
°C
°C
°C
°C
A
rpm
°C
step
kW
-
-
EA
31