Testing Operations - Samsung AC***MXSCCC Installation Manual

Testing operations

1. Check the power supply between the outdoor unit and the auxiliary circuit breaker.
1 phase power supply : L1, L2
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 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.
K2
1
2
3
KEY buttons are on Sub Display of Outdoor Unit
4. After 12 minutes of stationary condition check each indoor unit air treatment :
Cooling mode(indoor unit check)
5. How to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode) :
Press [K3] button over 1 sec to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode).
6. View Mode : When the K4 switch is pressed, you can see information about our system state as below.
Short
Display contents
push
1 Order frequency
2 Current frequency
3 The number of current indoor units
4 The sensor for outdoor air intake
5 Discharge sensor
6 Eva-Mid sensor
7 Cond sensor
8 Current
9 Fan RPM
10 Target discharge temperature
11 EEV
12 The capacity sum of indoor units
Mode
Cooling Test Mode
Inverter checker
(Load PBA inspection operation)
Pump down in Cool mode
ON
1 2 3 4
Inlet air temp. – Outlet air temp. ≥ 18 °F(reference only)
SEG1
1 Hundreds' digit Tens' digit
2 Hundreds' digit Tens' digit
3 Hundreds' digit Tens' digit
4
5 Hundreds' digit Tens' digit
6
7
8 Tens' digit
Thousands'
9
A Hundreds' digit Tens' digit
B Hundreds' digit Tens' digit
C Tens' digit
English-28
DISPLAY
SEG2 SEG3
+ / - Tens' digit
+ / - Tens' digit
+ / - Tens' digit
Unit digit
Hundreds' digit
digit
Unit digit
SEG4 Unit
Unit digit Hz
Unit digit Hz
Unit digit EA
Unit digit °C
Unit digit °C
Unit digit °C
Unit digit °C
The first place of
A
decimals
Tens' digit rpm
Unit digit °C
Unit digit step
The first place of
kW
decimals