Test Operation - Midea MFA-12HRN1 General Information Manual

MCAC-UTSM-2009-03

7. Test Operation

1. The test operation must be carried out after the entire installation has been completed.
2. Please confirm the following points before the test operation:
The indoor unit and outdoor unit are installed properly.
Tubing and wiring are correctly completed.
The refrigerant pipe system is leakage-checked.
The drainage is unimpeded.
The heating insulation works well.
The ground wiring is connected correctly.
The length of the tubing and the added stow capacity of the refrigerant have been recorded.
The power voltage fits the rated voltage of the air conditioner.
There is no obstacle at the outlet and inlet of the outdoor and indoor units.
The gas-side and liquid-side stop valves are both opened.
The air conditioner is pre-heated by turning on the power.
3. According to the user's requirement, install the remote controller frame where the remote controller's
signal can reach the indoor unit smoothly.
4. Test operation
Set the air conditioner under the mode of "COOLING" with the remote controller, and check the following
points. If there is any malfunction, please resolve it according to the chapter "Troubleshooting" in the
"Owner's Manual".
1) The indoor unit
a. Whether the switch on the remote controller works well.
b. Whether the buttons on the remote controller works 10.well.
c. Whether the air flow louver moves normally.
d. Whether the room temperature is adjusted well.
e. Whether the indicator lights normally.
f. Whether the temporary buttons works well.
g. Whether the drainage is normal.
h. Whether there is vibration or abnormal noise during operation.
I. Whether the air conditioner heats well in the case of the HEATING/COOLING type.
2) The outdoor unit
a. Whether there is vibration or abnormal noise during operation.
b. Whether the generated wind, noise, or condensed of by the air conditioner have influenced your
neighborhood.
c. Whether any of the refrigerant is leaked.
Caution:
A protection feature prevents the air conditioner from being activated for approximately 3 minutes when it is
restarted immediately after shut off.
Installation
Test Operation
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