Commissioning; Overview: Commissioning; Precautions When Commissioning - Daikin FCAHG71HVEB Installer And User Reference Manual

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Commissioning

8 Commissioning

8.1 Overview: Commissioning

8.2 Precautions when commissioning

Installer and user reference guide
46
This chapter describes what you have to do and know to commission the system
after it is installed.
Typical workflow
Commissioning typically consists of the following stages:
1 Checking the "Checklist before commissioning".
2 Performing a test run for the system.
INFORMATION
During the first running period of the unit, the required power may be higher than
stated on the nameplate of the unit. This phenomenon is caused by the compressor,
that needs a continuous run time of 50 hours before reaching smooth operation and
stable power consumption.
NOTICE
Before starting up the system, the unit MUST be energised for at least 6 hours to
avoid compressor breakdown during startup.
NOTICE
ALWAYS operate the unit with thermistors and/or pressure sensors/switches. If NOT,
burning of the compressor might be the result.
NOTICE
ALWAYS complete the refrigerant piping of the unit before operating. If NOT, the
compressor will break.
NOTICE
Cooling operation mode. Perform the test run in cooling operation mode so that
stop valves failing to open can be detected. Even if the user interface was set to
heating operation mode, the unit will run in cooling operation mode during 2‑3
minutes (although the user interface will display the heating icon), and then
automatically switch to heating operation mode.
NOTICE
If you cannot operate the unit in test run, see
4
test run" [ 49].
WARNING
If the panels on the indoor units are not installed yet, make sure to power OFF the
system after finishing the test run. To do so, turn OFF operation via the user
interface. Do NOT stop operation by turning OFF the circuit breakers.
"8.5 Error codes when performing a
FCAHG71~140HVEB
Split system air conditioners
4P561449-1B – 2021.07