Daikin RXP20M5V1B, Installation Manual

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Table of contents
Installation manual
3
(A)RXP20~35M5V1B
R32 split series
3P650253-6E – 2022.04
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 unpack the outdoor unit ......................................... 5
3.1.2 To remove the accessories from the outdoor unit....... 6
4 Unit installation 6
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 Opening the units ...................................................................... 6
4.2.1 To open the outdoor unit............................................. 6
4.3 Mounting the outdoor unit.......................................................... 7
4.3.1 To provide the installation structure ............................ 7
4.3.2 To install the outdoor unit............................................ 7
4.3.3 To provide drainage .................................................... 7
4.3.4 To prevent the outdoor unit from falling over .............. 7
5 Piping installation 8
5.1 Preparing refrigerant piping ....................................................... 8
5.1.1 Refrigerant piping requirements.................................. 8
5.1.2 Refrigerant piping length and height difference .......... 8
5.1.3 Refrigerant piping insulation ....................................... 8
5.2 Connecting the refrigerant piping .............................................. 8
5.2.1 About connecting the refrigerant piping ...................... 8
5.2.2 Precautions when connecting the refrigerant piping ... 8
5.2.3 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 .......................................... 9
6 Charging refrigerant 9
6.1 About charging refrigerant......................................................... 9
6.2 About the refrigerant.................................................................. 9
6.3 To determine the additional refrigerant amount ........................ 10
6.4 To determine the complete recharge amount ........................... 10
6.5 To charge additional refrigerant ................................................ 10
6.6 To fix the fluorinated greenhouse gases label........................... 10
7 Electrical installation 10
7.1 Specifications of standard wiring components .......................... 11
7.2 To connect the electrical wiring to the outdoor unit ................... 11
8 Finishing the outdoor unit installation 11
8.1 To finish the outdoor unit installation......................................... 11
8.2 To close the outdoor unit........................................................... 11
9 Maintenance and service 11
10 Commissioning 11
10.1 Checklist before commissioning ................................................ 11
10.2 Checklist during commissioning ................................................ 12
10.3 To perform a test run ................................................................. 12
10.4 Starting up the outdoor unit ....................................................... 12
11 Disposal 12
11.1 Overview: Disposal.................................................................... 12
11.2 To pump down........................................................................... 12
11.3 To start and stop forced cooling ................................................ 13
11.3.1 To start and stop forced cooling using the indoor unit
ON/OFF switch ........................................................... 13
11.3.2 To start and stop forced cooling using the indoor unit
user interface .............................................................. 13
12 Technical data 14
12.1 Wiring diagram ........................................................................... 14
12.1.1 Unified wiring diagram legend...................................... 14
12.2 Piping diagram ........................................................................... 16
12.2.1 Piping diagram: Outdoor unit ....................................... 16
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
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 https://www.daikin.eu . 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.
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
6])
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.
WARNING
The appliance shall be stored so as to prevent mechanical
damage and in a well-ventilated room without continuously
operating ignition sources (e.g. open flames, an operating
gas appliance, or an operating electric heater). The room
size shall be as specified in the General safety precaution.