Samsung AF55JS1MAEENMG manual Testing operations, ENGLISH-62, Ff3 phases power supply R, S, T, N

Testing operations

1.Check the power supply between the outdoor unit and the auxiliary circuit breaker. ff1 phase power supply : L, N

ff3 phases 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 the thermistor sensor, drain pump/hose, and display are connected correctly.

3.Press K1 or K2 on the outdoor unit PCB to run the test mode and stop.

❋❋K1 button is applicable for AF55JS✴MA✴ model only

ffPress K1 button ➛ Start Heating test mode ➛ Press K1 button twice ➛ Stop ➛ Heating test mode 7-seg display : ffPress K2 button ➛Start Cooling test mode ➛Press K2 button three times ➛Stop ➛ Cooling test mode 7-seg display : ffPress K1 button twice ➛ Start Defrost test mode ➛ Press K1 button ➛ Stop ➛ Defrost test mode 7-seg display :

• Condition of Defrost test mode

-- Condition 1 : The outdoor temperature is under 10 °C

-- Condition 2 : All the temperature conditions should meet the defrost conditions

ffPress K2 button twice ➛ Start Inverter Checker mode ➛ Press K2 button twice ➛ Stop ➛ Inverter Checker mode 7-seg display :

ffPress K2 three times ➛ Start Pump down mode ➛ Press K2 button ➛ Stop ➛ Pump down mode 7-seg display :

Outdoor unit

ON ON

4.After 12 minutes of stationary condition check each indoor unit air treatment : ffCooling mode(indoor unit check) ➛ Inlet air temp. - Outlet air temp. : From 10 °C to 12 °C ffHeating mode(indoor unit check) ➛ Outlet air temp. - Inlet air temp. : From 11 °C to 14 °C

ffIn heating mode, the indoor fan motor can remain off to avoid cold air blown into conditioned space.

5.How to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode) :

ffOutdoor unit type A, B : Press K3 button over 1 sec to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode).

ENGLISH-62