Cooling Mode - Samsung RVMC060GDM0 Technical Manual

Dv m air conditioner
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(8) If the preheating of compressor is completed, the communication is performed
between indoor unit connected and options. It is the normal at the time when the
address on the right display is shown as many as shown on the left side display.
(9) Check through the PC connected with outdoor unit whether the data is correct
from temperature sensor and electronic expansion valve.
(10) Once the above process is all completed, press the test operation button on PCB.
- Check before pressing key whether all the service valves are open.
(11) Check the high and low pressure by using the S-net or a manifold gauge.
- Use the S-net for RVMC060H1M0(1) model and use a manifold gauge for the other models.
- Refer to the pressure table separately provided as per the outdoor temperature and piping length.
- Since the high pressure and low pressure varies at the initial operation, take the input data 20 minutes
after the start of compressor at least.
- Since the compressor may reciprocate if there is loud noise or if the low and high pressure do not vary,
check the power L1(R)-L2(S)-L3(T) from (1). If there is not trouble in the power but the problems continues
to occur, check the wire connected to the compressor.
Neglect the RCS on the compressor power incoming and check the order of cables.
- Three phase : T1-L1(R)-red
- Single phase : T1-R-red
(12) Check through the PC connected to the outdoor unit.
- Check the temperature, RPM, power and opening of electronic expansion valve for each indoor unit.
The proper opening of electronic expansion valve when under the air cooling operation:
Between 250 and 160 step when the outdoor temperature is 35°C. (The lower the outdoor
air temperature, make lower the opening of electronic expansion valve would be larger.)
The proper opening of electronic expansion valve when under the air heating operation:
Between 1100 and 700 step when the outdoor temperature is 7°C. (The lower the outdoor
air temperature, make lower the opening of electronic expansion valve would be smaller.)
- Check whether the compressor discharge, condenser outlet temperature, outdoor fan are operated.
(13) During the test operation, check whether error is shown on the outdoor PCB.
- Test operation shall be continued for more than 2 hours continuously at least.
- After the long initial operation of outdoor unit, check whether the condensate is well treated.
(14) Press the Reset button to complete the test operation.
(Operation completion of whole rooms)
(15) If the test operation mode is completed, operate one indoor unit only in

cooling mode.

- The operation shall be continued for more than 30 minutes for one unit and then check the temperature
of indoor unit connected through PC to check the leak of electronic expansion valve. If there is no problem,
put off the indoor unit which is operating and operate another indoor unit to check the electronic expansion
valve leak as in the above manner.
T2-L2(S)-white
T3-L3(T)-black
T2-S-white
T3-C-black
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