Checklist Before Commissioning - Daikin VRV 5 RXYA8A7Y1B Installer And User Manual

22 | Commissioning

22.3 Checklist before commissioning

Installer and user reference guide
164
CAUTION
Do NOT perform the test operation while working on the indoor units.
When performing the test operation, NOT ONLY the outdoor unit, but the connected
indoor unit will operate as well. Working on an indoor unit while performing a test
operation is dangerous.
CAUTION
Do NOT insert fingers, rods or other objects into the air inlet or outlet. Do NOT
remove the fan guard. When the fan is rotating at high speed, it will cause injury.
NOTICE
Test run is possible for ambient temperatures between –⁠ 1 0°C and 46°C.
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
Turn ON the power 6 hours before operation in order to have power running to the
crankcase heater and to protect the compressor.
During test operation, the outdoor unit and the indoor units will start up. Make
sure that the preparations of all indoor units are finished (field piping, electrical
wiring, air purge, ...). See installation manual of the indoor units for details.
1 After the installation of the unit, check the items listed below.
2 Close the unit.
3 Power up the unit.
You have read the complete installation and operation instructions described in the
installer and user reference guide.
Installation
Check that the unit is properly installed, to avoid abnormal noises and vibrations when
starting up the unit.
Transportation stay
Check that the outdoor unit's transportation stay is removed.
Field wiring
Check that the field wiring has been carried out according to the instructions described in
the chapter "20 Electrical
according to the applicable national wiring regulation.
Power supply voltage
Check the power supply voltage on the local supply panel. The voltage MUST correspond to
the voltage on the nameplate of the unit.
Earth wiring
Be sure that the earth wires have been connected properly and that the earth terminals are
tightened.
4
installation" [ 125], according to the wiring diagrams and
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12