Daikin RXJ20A5V1B - About the Documentation; About this Document

Table of contents
Installation manual
3
RXJ20~35A
R32 split series
3P482320-17X – 2021.12
Table of contents
1 About the documentation 3
1.1 About this document.................................................................. 3
2 Specific installer safety instructions 3
3 About the box 5
3.1 Outdoor unit............................................................................... 5
3.1.1 To remove the accessories from the outdoor unit....... 5
4 Unit installation 5
4.1 Preparing the installation site .................................................... 6
4.1.1 Installation site requirements of the outdoor unit ........ 6
4.1.2 Additional installation site requirements of the
outdoor unit in cold climates ....................................... 6
4.2 Mounting the outdoor unit.......................................................... 6
4.2.1 To provide the installation structure............................ 6
4.2.2 To install the outdoor unit............................................ 7
4.2.3 To provide drainage.................................................... 7
5 Piping installation 7
5.1 Preparing refrigerant piping....................................................... 7
5.1.1 Refrigerant piping requirements.................................. 7
5.1.2 Refrigerant piping insulation ....................................... 7
5.1.3 Refrigerant piping length and height difference .......... 8
5.2 Connecting the refrigerant piping .............................................. 8
5.2.1 To connect the refrigerant piping to the outdoor unit .. 8
5.3 Checking the refrigerant piping ................................................. 8
5.3.1 To check for leaks....................................................... 8
5.3.2 To perform vacuum drying.......................................... 8
6 Charging refrigerant 9
6.1 About the refrigerant.................................................................. 9
6.2 To determine the additional refrigerant amount ........................ 9
6.3 To determine the complete recharge amount ........................... 9
6.4 To charge additional refrigerant ................................................ 9
6.5 To fix the fluorinated greenhouse gases label........................... 9
7 Electrical installation 9
7.1 Specifications of standard wiring components .......................... 10
7.2 To connect the electrical wiring to the outdoor unit ................... 10
8 Finishing the outdoor unit installation 11
8.1 To finish the outdoor unit installation......................................... 11
9 Configuration 11
9.1 Facility setting............................................................................ 11
9.1.1 To set the facility mode............................................... 11
10 Commissioning 11
10.1 Checklist before commissioning................................................ 11
10.2 Checklist during commissioning ................................................ 11
10.3 To perform a test run................................................................. 12
11 Maintenance and service 12
12 Troubleshooting 12
12.1 Fault diagnosis using LED on outdoor unit PCB ....................... 12
13 Disposal 12
14 Technical data 12
14.1 Wiring diagram .......................................................................... 12
14.1.1 Unified wiring diagram legend..................................... 12
1 About the documentation
1.1 About this document
INFORMATION
Make sure that the user has the printed documentation and
ask him/her to keep it for future reference.
Target audience
Authorised installers
WARNING
Make sure installation, servicing, maintenance, repair and
applied materials follow the instructions from Daikin 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
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 http://www.daikineurope.com/support-
and-manuals/product-information/
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your dealer.
The original documentation is written in English. All other languages
are translations.
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).
2 Specific installer safety
instructions
Always observe the following safety instructions and regulations.
Unit installation (see "4Unit installation"[45])
WARNING
Installation shall be done by an installer, the choice of
materials and installation shall comply with the applicable
legislation. In Europe, EN378 is the applicable standard.