Midea MFA3T-96CRN1, Техническое и сервисное руководство

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MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series
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9. Trial Run
Please conduct in accordance with “Trial Run Tenor Nameplate” on the electric control box.

Perform the trial run only after the outdoor unit has been powered on for over 12 hours.

Check whether all valves are opened before trial run.

Check the electric safety before trial run.

Do not perform compulsory operation in any way, because it is very dangerous if the protection
device is not active.

Perform trial run only after all installations are finished.

Confirm the following issues before trial operation:

Check whether the indoor unit and the outdoor are installed properly.

Check whether the piping and wiring are corrected.

Check whether the refrigerant pipeline system is inspected for leakage.

Check whether the drain is smooth.

Check whether the heat insulation is perfect.

Check whether the ground cables are connected correctly.

Check whether the pipe length and the refrigerant amount are recorded.

Check whether the supply voltage is equal to the rated voltage of the air conditioner.

Check whether any obstacles exist at the air inlet/outlet of the indoor or outdoor unit.

Open the gas valve and the liquid valve.

Connect the power supply to preheat the air conditioner.

Install the remote controller holder as required by the user. The holder must be installed in a
location suitable for transmitting the signals of the remote controller to the indoor unit.

Use the remote controller or wired controller (matched) to let the air conditioner run in the
cooling mode. Inspect the following items against the operation manual. (If any fault occurs,
remove the fault by reference to the Section
“Faults of Air Conditioner and Causes” in the
Operation Manual.)

Check the indoor unit:

Check whether the switch of the remote controller or wire controller is normal.

Check whether the functional keys of the remote controller or wire controller are normal.