Step 13 Performing Final Check And Trial Operation - Samsung AC TXQR H Series Installation Manual

5 Carefully check the installation by measuring the
earthing resistance with a earth resistance tester. If
the resistance is above the required level, drive the
electrode deeper into the ground or increase the
number of earthing electrodes.
6 Connect the earthing wire to the electrical component
box inside of the outdoor unit.
Step 13 Performing final check and
trial operation
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.
a 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.)
b Check that 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.
Key Push type Mode
1st Heating test mode
K1 Short
2nd Defrost test mode
3rd Stop
1st Cooling test
2nd Inverter check
K2 Short
3rd Pump down
4th Stop
Reset
K3 Short 1st
Release Eco mode
Display
SEG1 SEG2 SEG3 SEG4
Condition 1
Condition 2: All the temperature conditions should meet
the defrost conditions.
• AC018/024TXQREH
• AC036/048/060TXQR*H
4 After 12 minutes operation check discharged air
temperature of indoor unit
•
•
• In heating mode, the indoor fan motor can remain
off to avoid cold air blown into air-conditioned
space.
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).
Eco mode: Standby for minimizing power consumption
27
English