Daikin VRV 5-S Series - Checklist During Commissioning; About the Test Run; To Perform a Test Run (7-Segment Display)

23 | Commissioning
Installer and user reference guide
141
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1D – 2023.02
Additional refrigerant charge
The amount of refrigerant to be added to the unit shall be written on the included "Added
refrigerant" plate and attached to the rear side of the front cover.
Requirements for R32 equipment
Make sure the system meets all requirements that are described in the following chapter:
"3.1Instructions for equipment using R32 refrigerant"[418].
Field settings
Make sure all field settings you want are set. See "22.2Making field settings"[4122].
Installation date and field setting
Be sure to keep a record of the installation date on the sticker on the rear of the front
panel according to EN60335‑2‑40 and keep record of the contents of the field setting(s).
23.3 Checklist during commissioning
To perform a test run.
23.4 About the test run
NOTICE
Make sure to carry out the test run after the first installation. Otherwise, the
malfunction code will be displayed on the user interface and normal operation or
individual indoor unit test run cannot be carried out.
The procedure below describes the test operation of the complete system. This
operation checks and judges following items:
▪ Check for incorrect wiring (communication check with indoor units).
▪ Check of the stop valves opening.
▪ Judgement of piping length.
▪ Abnormalities on indoor units cannot be checked for each unit separately. After
the test operation is finished, check the indoor units one by one by performing a
normal operation using the user interface. Refer to the indoor unit installation
manual for more details concerning the individual test run.
INFORMATION
▪ It may take 10 minutes to achieve a uniform refrigerant state before the
compressor starts.
▪ During the test operation, the refrigerant running sound or the magnetic sound
of a solenoid valve may become loud and the display indication may change.
These are not malfunctions.
23.5 To perform a test run (7-segment display)
1 Make sure all field settings you want are set; see "22.2 Making field
settings"[4122].
2 Turn ON the power to the outdoor unit and the connected indoor units.