Table of contents
Installation manual
4
RXA-A8
R32 Split system air conditioners
3P748894-1A – 2023.09
Table of contents
About this document..................................................................
2 Specific installer safety instructions
Outdoor unit...............................................................................
To remove the accessories from the outdoor unit.......
Preparing the installation site ....................................................
Installation site requirements of the outdoor unit ........
Mounting the outdoor unit..........................................................
To provide the installation structure ............................
To install the outdoor unit............................................
To provide drainage ....................................................
Preparing refrigerant piping .......................................................
Refrigerant piping requirements..................................
Refrigerant piping insulation .......................................
Refrigerant piping length and height difference ..........
Connecting the refrigerant piping ..............................................
To connect the refrigerant piping to the outdoor unit ..
Checking the refrigerant piping .................................................
To check for leaks.......................................................
To perform vacuum drying ..........................................
About the refrigerant..................................................................
To determine the additional refrigerant amount ........................
To determine the complete recharge amount ...........................
To charge additional refrigerant ................................................
To fix the fluorinated greenhouse gases label...........................
Specifications of standard wiring components ..........................
To connect the electrical wiring to the outdoor unit ...................
8 Finishing the outdoor unit installation
To finish the outdoor unit installation.........................................
Facility setting............................................................................
To set the facility mode ............................................... 12
Checklist before commissioning ................................................
Checklist during commissioning ................................................
To perform a test run .................................................................
Fault diagnosis using LED on outdoor unit PCB .......................
Wiring diagram ..........................................................................
Unified wiring diagram legend..................................... 14
1
About the documentation
1.1
About this document
WARNING
Make sure installation, servicing, maintenance, repair and
applied materials follow the instructions from Daikin
(including all documents listed in “Documentation set”)
and, in addition, comply with applicable legislation and are
performed by qualified persons only. In Europe and areas
where IEC standards apply, EN/IEC 60335-2-40 is the
applicable standard.
INFORMATION
Make sure that the user has the printed documentation and
ask him/her to keep it for future reference.
Target audience
Authorised installers
INFORMATION
This document only describes installation instructions
specific to the outdoor unit. For installation of the indoor
unit (mounting the indoor unit, connecting the refrigerant
piping to the indoor unit, connecting the electrical wiring to
the indoor unit …), see the installation manual of the indoor
unit.
Documentation set
This document is part of a documentation set. The complete set
consists of:
▪
General safety precautions:
▪ Safety instructions that you MUST read before installing
▪ Format: Paper (in the box of the outdoor unit)
▪
Outdoor unit installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the outdoor unit)
▪
Installer reference guide:
▪ Preparation of the installation, reference data, …
▪ Format: Digital files on
. Use the search
function to find your model.
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your dealer.
Scan the QR code below to find the full documentation set and more
information about your product on Daikin website.
RXA-A8
The original instructions are written in English. All other languages
are translations of the original instructions.
Technical engineering data
▪ A
subset
of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The
full set
of latest technical data is available on the Daikin
Business Portal (authentication required).