Precautions When Commissioning; Checklist Before Commissioning - Daikin EWYA004D2V3P Installer's Reference Manual

12 | Commissioning

12.2 Precautions when commissioning

12.3 Checklist before commissioning

Installer reference guide
186
Typical workflow
Commissioning typically consists of the following stages:
1 Checking the "Checklist before commissioning".
2 Performing an air purge.
3 Performing a test run for the system.
4 If necessary, performing a test run for one or more actuators.
5 If necessary, performing an underfloor heating screed dryout.
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. At
negative ambient temperatures, the compressor oil needs to be heated to avoid oil
shortage and 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.
1 After the installation of the unit, check the items listed below.
2 Close the unit.
3 Power up the unit.
You read the complete installation instructions, as described in the installer reference
guide.
The outdoor unit is properly mounted.
The switchbox is rotated back and correctly engaged in the switchbox holder.
Field wiring
Be sure that the field wiring has been carried out according to the instructions described in
the chapter "9 Electrical
to the applicable legislation.
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 switch box.
There are NO damaged components or squeezed pipes on the inside of the outdoor unit.
4
installation" [ 72], according to the wiring diagrams and according
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09