19 | Commissioning
Installer and user reference guide
68
FXDA10~63A2VEB
VRV system air conditioner
4P599621-1A – 2020.10
19.3 Checklist before commissioning
After the installation of the unit, first check the items listed below. Once all checks
are fulfilled, the unit must be closed. Power-up the unit after it is closed.
You read the complete installation and operation instructions, as described in the installer
and user reference guide.
The indoor unit is properly mounted.
The outdoor unit is properly mounted.
Make sure drain piping is properly installed, insulated and drainage flows smoothly. Check
for water leaks.
Possible consequence: Condensate water might drip.
The ducting is properly installed and insulated.
The refrigerant pipes (gas and liquid) are installed correctly and thermally insulated.
There are NO refrigerant leaks.
There are NO missing phases or reversed phases.
The system is properly earthed and the earth terminals are tightened.
The fuses or locally installed protection devices are installed according to this document,
and have NOT been bypassed.
The power supply voltage matches the voltage on the identification label of the unit.
There are NO loose connections or damaged electrical components in the switchbox.
There are NO damaged components or squeezed pipes on the inside of the indoor and
outdoor units.
The stop valves (gas and liquid) on the outdoor unit are fully open.
19.4 To perform a test run
INFORMATION
▪ Perform the test run according to the instructions in the outdoor unit manual.
▪ The test run is only completed if there is no malfunction code displayed on the
user interface or the outdoor unit 7‑segment display.
▪ See the service manual for the complete list of error codes and a detailed
troubleshooting guideline for each error.
NOTICE
Do NOT interrupt the test run.
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