Daikin RXTM40R2V1B Käyttöohje

Daikin Ilmastointi RXTM40R2V1B

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Installer reference guide

R32 split series

RXTA30B2V1B

RXTM30R2V1B

RXTM40R2V1B

RXTP25R2V1B

RXTP35R2V1B

ARXTP25R2V1B

ARXTP35R2V1B

Table of contents

Installer reference guide

RXTM-R_RXTP-R_ARXTP-R_RXTA-B

R32 split series

4P518023-11H – 2021.03

Table of contents

1 About the documentation 4

1.1 About this document ...................................................................................................................................................... 4

1.1.1 Meaning of warnings and symbols ................................................................................................................ 5

2 General safety precautions 7

2.1 For the installer............................................................................................................................................................... 7

2.1.1 General ........................................................................................................................................................... 7

2.1.2 Installation site ............................................................................................................................................... 8

2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 11

2.1.4 Electrical ......................................................................................................................................................... 12

3 Specific installer safety instructions 15

4 About the box 21

4.1 Overview: About the box................................................................................................................................................ 21

4.2 Outdoor unit ................................................................................................................................................................... 21

4.2.1 To unpack the outdoor unit ........................................................................................................................... 21

4.2.2 To handle the outdoor unit............................................................................................................................ 21

4.2.3 To remove the accessories from the outdoor unit........................................................................................ 22

5 About the unit 23

5.1 Identification ................................................................................................................................................................... 23

5.1.1 Identification label: Outdoor unit .................................................................................................................. 23

6 Unit installation 24

6.1 Preparing the installation site......................................................................................................................................... 24

6.1.1 Installation site requirements of the outdoor unit........................................................................................ 25

6.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 27

6.2 Opening the unit ............................................................................................................................................................. 28

6.2.1 About opening the unit .................................................................................................................................. 28

6.2.2 To open the outdoor unit............................................................................................................................... 28

6.3 Mounting the outdoor unit............................................................................................................................................. 28

6.3.1 About mounting the outdoor unit ................................................................................................................. 28

6.3.2 Precautions when mounting the outdoor unit.............................................................................................. 29

6.3.3 To provide the installation structure ............................................................................................................. 29

6.3.4 To install the outdoor unit ............................................................................................................................. 30

6.3.5 To provide drainage........................................................................................................................................ 30

6.3.6 To prevent the outdoor unit from falling over .............................................................................................. 30

7 Piping installation 32

7.1 Preparing refrigerant piping ........................................................................................................................................... 32

7.1.1 Refrigerant piping requirements.................................................................................................................... 32

7.1.2 Refrigerant piping insulation.......................................................................................................................... 33

7.1.3 Refrigerant piping length and height difference ........................................................................................... 33

7.2 Connecting the refrigerant piping .................................................................................................................................. 33

7.2.1 About connecting the refrigerant piping ....................................................................................................... 33

7.2.2 Precautions when connecting the refrigerant piping.................................................................................... 34

7.2.3 Guidelines when connecting the refrigerant piping ...................................................................................... 35

7.2.4 Pipe bending guidelines ................................................................................................................................. 36

7.2.5 To flare the pipe end ...................................................................................................................................... 36

7.2.6 Using the stop valve and service port............................................................................................................ 36

7.2.7 To connect the refrigerant piping to the outdoor unit ................................................................................. 38

7.3 Checking the refrigerant piping ...................................................................................................................................... 38

7.3.1 About checking the refrigerant piping........................................................................................................... 38

7.3.2 Precautions when checking the refrigerant piping........................................................................................ 39

7.3.3 To check for leaks........................................................................................................................................... 39

7.3.4 To perform vacuum drying............................................................................................................................. 40

8 Charging refrigerant 42

8.1 About charging refrigerant ............................................................................................................................................. 42

8.2 About the refrigerant...................................................................................................................................................... 43

8.3 Precautions when charging refrigerant.......................................................................................................................... 44

8.4 To determine the additional refrigerant amount .......................................................................................................... 44

8.5 To determine the complete recharge amount .............................................................................................................. 44

8.6 To charge additional refrigerant..................................................................................................................................... 44

8.7 To fix the fluorinated greenhouse gases label ............................................................................................................... 45

Table of contents

Installer reference guide

RXTM-R_RXTP-R_ARXTP-R_RXTA-B

R32 split series

4P518023-11H – 2021.03

9 Electrical installation 46

9.1 About connecting the electrical wiring .......................................................................................................................... 46

9.1.1 Precautions when connecting the electrical wiring....................................................................................... 46

9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 48

9.1.3 Specifications of standard wiring components.............................................................................................. 49

9.2 To connect the electrical wiring to the outdoor unit..................................................................................................... 49

10 Finishing the outdoor unit installation 51

10.1 To finish the outdoor unit installation............................................................................................................................ 51

10.2 Closing the unit ............................................................................................................................................................... 51

10.2.1 To close the outdoor unit............................................................................................................................... 51

11 Configuration 52

11.1 Facility setting ................................................................................................................................................................. 52

11.1.1 To set the facility mode.................................................................................................................................. 52

12 Commissioning 53

12.1 Overview: Commissioning .............................................................................................................................................. 53

12.2 Precautions when commissioning.................................................................................................................................. 53

12.3 Checklist before commissioning..................................................................................................................................... 54

12.4 Checklist during commissioning ..................................................................................................................................... 54

12.5 To perform a test run...................................................................................................................................................... 54

12.6 Starting up the outdoor unit........................................................................................................................................... 55

13 Hand-over to the user 56

14 Maintenance and service 57

14.1 Overview: Maintenance and service .............................................................................................................................. 57

14.2 Maintenance safety precautions.................................................................................................................................... 57

14.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 58

14.4 About the compressor .................................................................................................................................................... 58

14.5 Winter season ................................................................................................................................................................. 58

15 Troubleshooting 59

15.1 Overview: Troubleshooting ............................................................................................................................................ 59

15.2 Precautions when troubleshooting ................................................................................................................................ 59

15.3 Solving problems based on symptoms........................................................................................................................... 59

15.3.1 Symptom: Indoor units fall, vibrate or make noise ....................................................................................... 59

15.3.2 Symptom: The unit is NOT heating or cooling as expected........................................................................... 60

15.3.3 Symptom: Water leakage............................................................................................................................... 60

15.3.4 Symptom: Electrical leakage .......................................................................................................................... 60

15.3.5 Symptom: Unit does NOT function or burn damage..................................................................................... 60

15.4 Fault diagnosis using LED on outdoor unit PCB.............................................................................................................. 60

16 Disposal 61

16.1 Overview: Disposal.......................................................................................................................................................... 61

16.2 To pump down................................................................................................................................................................ 61

16.3 To start and stop forced cooling..................................................................................................................................... 62

16.3.1 To start and stop forced cooling using the indoor unit ON/OFF switch ....................................................... 62

16.3.2 To start and stop forced cooling using the indoor unit user interface ......................................................... 62

17 Technical data 63

17.1 Wiring diagram................................................................................................................................................................ 63

17.1.1 Unified wiring diagram legend ....................................................................................................................... 63

17.2 Piping diagram ................................................................................................................................................................ 66

17.2.1 Piping diagram: Outdoor unit......................................................................................................................... 66

18 Glossary 67