Testing operations
1Check the power supply between the outdoor unit and the auxiliary circuit breaker.
–1 phase power supply : L, N
–3 phases power supply : R, S ,T ,N
2Check the indoor unit.
–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.)
–Check the thermistor sensor, drain pump/hose, and display are connected correctly.
3Press K2 on the outdoor unit PCB to run the test mode and
stop.
– Press K2 button → Start Cooling test mode → Press K2 button → Stop → Cooling test mode 
– Press K2 button twice → Start Inverter Checker mode → Press K2 button → Stop → Inverter Checker mode 
(For a service only )
K1 
K2 
K3 
K4 
Outdoor unit
4After 12 minutes of stationary condition check each indoor unit air treatment :
–Cooling mode(indoor unit check) → Inlet air temp. - Outlet air temp. : From 10°C to 12°C
5How to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode) :
–Outdoor unit type A :
Press [K3] button over 1 sec to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode)
6View Mode : When the K4 switch is pressed, you can see information about our system state as below.
INSTALLATION PARTS
English 67