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Table of contents

Installation manual

4

RXA-A8

R32 Split system air conditioners

3P748894-1A – 2023.09

Table of contents

1 About the documentation

4

1.1

About this document..................................................................

4

2 Specific installer safety instructions

5

3 About the box

6

3.1

Outdoor unit...............................................................................

6

3.1.1

To remove the accessories from the outdoor unit.......

6

4 Unit installation

7

4.1

Preparing the installation site ....................................................

7

4.1.1

Installation site requirements of the outdoor unit ........

7

4.1.2

Additional installation site requirements of the
outdoor unit in cold climates .......................................

7

4.2

Mounting the outdoor unit..........................................................

7

4.2.1

To provide the installation structure ............................

7

4.2.2

To install the outdoor unit............................................

8

4.2.3

To provide drainage ....................................................

8

5 Piping installation

8

5.1

Preparing refrigerant piping .......................................................

8

5.1.1

Refrigerant piping requirements..................................

8

5.1.2

Refrigerant piping insulation .......................................

8

5.1.3

Refrigerant piping length and height difference ..........

8

5.2

Connecting the refrigerant piping ..............................................

9

5.2.1

To connect the refrigerant piping to the outdoor unit ..

9

5.3

Checking the refrigerant piping .................................................

9

5.3.1

To check for leaks.......................................................

9

5.3.2

To perform vacuum drying ..........................................

9

6 Charging refrigerant

9

6.1

About the refrigerant..................................................................

9

6.2

To determine the additional refrigerant amount ........................

10

6.3

To determine the complete recharge amount ...........................

10

6.4

To charge additional refrigerant ................................................

10

6.5

To check refrigerant piping joints for leaks after charging
refrigerant ..................................................................................

10

6.6

To fix the fluorinated greenhouse gases label...........................

10

7 Electrical installation

11

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

12

8.1

To finish the outdoor unit installation.........................................

12

9 Configuration

12

9.1

Facility setting............................................................................

12

9.1.1

To set the facility mode ............................................... 12

10 Commissioning

12

10.1

Checklist before commissioning ................................................

12

10.2

Checklist during commissioning ................................................

13

10.3

To perform a test run .................................................................

13

11 Maintenance and service

13

12 Troubleshooting

13

12.1

Fault diagnosis using LED on outdoor unit PCB .......................

13

13 Disposal

14

14 Technical data

14

14.1

Wiring diagram ..........................................................................

14

14.1.1

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 

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.

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).

Summary of Contents for RXA20A5V1B8

Page 1: ...Installation manual R32 Split system air conditioners English Installation manual R32 Split system air conditioners RXA20A5V1B8 RXA25A5V1B8 RXA35A5V1B8...

Page 2: ...s instrukcij atbilst d m direkt v m vai regul m ja vien ie izstr d jumi tiek lietoti saska ar m su instrukcij m s v zhode s nasleduj cou imi smernicou ami alebo predpisom mi za predpokladu e sa v rob...

Page 3: ...tructions as amended S I 2008 1597 Supply of Machinery Safety Regulations 2008 S I 2016 1101 Electrical Equipment Safety Regulations 2016 S I 2016 1091 Electromagnetic Compatibility Regulations 2016 f...

Page 4: ...diagnosis using LED on outdoor unit PCB 13 13 Disposal 14 14 Technical data 14 14 1 Wiring diagram 14 14 1 1 Unified wiring diagram legend 14 1 About the documentation 1 1 About this document WARNING...

Page 5: ...ew flares to prevent refrigerant gas leakage Use flare nuts that are included with the unit Using different flare nuts may cause refrigerant gas leakage CAUTION Do NOT open the valves before flaring i...

Page 6: ...ng 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 injur...

Page 7: ...ise will cause no trouble Note If the sound is measured under actual installation conditions the measured value might be higher than the sound pressure level mentioned in Sound spectrum in the data bo...

Page 8: ...gerant Use phosphoric acid deoxidised seamless copper for refrigerant piping Piping material phosphoric acid deoxidised seamless copper Flare connections Only use annealed material Piping diameter Liq...

Page 9: ...g 5 3 1 To check for leaks NOTICE Do NOT exceed the unit s maximum working pressure see PS High on the unit name plate 1 Charge the system with nitrogen gas up to a gauge pressure of at least 200 kPa...

Page 10: ...igerant Other substances may cause explosions and accidents R32 contains fluorinated greenhouse gases Its global warming potential GWP value is 675 Do NOT vent these gases into the atmosphere When cha...

Page 11: ...thermistors are powered by the power supply Do NOT touch them with bare hands 7 1 Specifications of standard wiring components NOTICE We recommend using solid single core wires If stranded wires are...

Page 12: ...indoor unit fan to the highest speed Do NOT use this setting in residences or offices with people 10 Commissioning NOTICE General commissioning checklist Next to the commissioning instructions in thi...

Page 13: ...lementary to the instructions in this chapter and can be used as a guideline and reporting template during maintenance NOTICE Maintenance MUST be done by an authorised installer or service agent We re...

Page 14: ...ort circuit connector Fuse Terminal INDOOR Indoor unit Terminal strip OUTDOOR Outdoor unit Wire clamp Residual current device Heater Symbol Colour Symbol Colour BLK Black ORG Orange BLU Blue PNK Pink...

Page 15: ...e arrester SR WLU Signal receiver SS Selector switch SHEET METAL Terminal strip fixed plate T R Transformer TC TRC Transmitter V R V Varistor V R Diode bridge Insulated gate bipolar transistor IGBT po...

Page 16: ...ANBUL T RK YE Tel 0216 453 27 00 Faks 0216 671 06 00 a r Merkezi 444 999 0 Web www daikin com tr G lsuyu Mahallesi Fevzi akmak Caddesi Bur ak Sokak No 20 34848 Maltepe 3P748894 1A 2023 09 Copyright 20...

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