51
ENGLISH
Trial operation
X Check the power supply between the outdoor unit and the cabinet panel.
- 1 phase power supply : L, N
X Check the indoor unit.
- Check whether you have connected the power and communication cables correctly.
(The communication cables between an indoor unit and outdoor unit are F1, F2.)
- Check the thermistor sensor, drain pump/hose, and display are connected correctly.
X Check with Key mode or S-Net Pro.
- At rst, operate all the indoor units with Key mode and operate the indoor units individually with S-Net Pro.
- In the beginning of operation, check the compressor operation sound. If there is a boom sound, stop the trial operation.
X Check the operation status of indoor and outdoor unit.
- Check whether the cooling operation is done correctly.
- Check the individual indoor unit control, wind velocity, and wind ow direction.
- Check whether you can hear abnormal sound from indoor unit and outdoor unit.
- Check whether the drainage is done correctly in cooling.
- Check S-net Pro for detailed operation.
X Explain to the user the usage of the air conditioner by referring to the users manual.
t Turn on the outdoor unit 3 hours before the test operation to preheat the compressor.
t If the compressor is not preheated, ‘CH’ may appear on the outdoor unit PCB depending on the outdoor
temperature.
t If the check operation is not completed, ‘UP’ may appear on the outdoor unit PCB
Writing and keeping installation checking card
X Installation checking card is enclosed with the installation manual.
- Installer should ll out the front side of the card meticulously.
- Write basic information such as date of installation, name of an installer, contact information, supervision company etc.
- Write additional information such as the name of outdoor unit models, unusual, calculation of the additional amount of
refrigerant etc.
- Write indoor unit related information such as indoor unit installation location, indoor unit model name etc.
X Keep the installation checking card in a designated place and do not lose it.
Installation checking card
Caution
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