Daikin LRNUN5A7Y1 Bedienungsanleitung

Daikin Kühlschrank LRNUN5A7Y1

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Installer and user reference guide

CO₂ ZEAS outdoor unit and capacity up unit

LREN8A▲Y1B▼

LREN10A▲Y1B▼

LREN12A▲Y1B▼

LRNUN5A▲Y1▼

▲= 1, 2, 3, …, 9

▼= , , 1, 2, 3, …, 9

Table of contents

Installer and user reference guide

LREN8~12A + LRNUN5A

CO₂ ZEAS outdoor unit and capacity up unit

4P704142-1C – 2024.12

Table of contents

1 About the documentation 5

1.1 About this document...................................................................................................................................................... 5

2 General safety precautions 6

2.1 About the documentation.............................................................................................................................................. 6

2.1.1 Meaning of warnings and symbols................................................................................................................ 6

2.2 For the installer .............................................................................................................................................................. 7

2.2.1 General........................................................................................................................................................... 7

2.2.2 Installation site............................................................................................................................................... 8

2.2.3 Refrigerant — in case of R744....................................................................................................................... 9

2.2.4 Electrical......................................................................................................................................................... 11

3 Specific installer safety instructions 13

For the user 22

4 User safety instructions 23

4.1 General ........................................................................................................................................................................... 23

4.2 Instructions for safe operation ...................................................................................................................................... 24

5 About the system 29

5.1 System layout ................................................................................................................................................................. 30

6 Operation 31

6.1 Operation modes............................................................................................................................................................ 31

6.2 Operation range ............................................................................................................................................................. 31

6.3 Field piping pressure ...................................................................................................................................................... 31

7 Energy saving and optimum operation 32

8 Maintenance and service 33

8.1 Maintenance before a long stop period ........................................................................................................................ 33

8.2 Maintenance after a long stop period ........................................................................................................................... 33

8.3 About the refrigerant ..................................................................................................................................................... 34

8.4 Recommended maintenance and inspection................................................................................................................ 34

9 Troubleshooting 35

9.1 Error codes: Overview.................................................................................................................................................... 36

10 Relocation 38

11 Disposal 39

For the installer 40

12 About the box 41

12.1 Outdoor unit................................................................................................................................................................... 41

12.1.1 To transport the pallet................................................................................................................................... 41

12.1.2 To unpack the outdoor unit........................................................................................................................... 42

12.1.3 To handle the outdoor unit ........................................................................................................................... 43

12.1.4 To remove the accessories from the outdoor unit ....................................................................................... 44

13 About the units and options 46

13.1 Identification .................................................................................................................................................................. 46

13.1.1 Identification label: Outdoor unit.................................................................................................................. 46

13.2 About the outdoor unit .................................................................................................................................................. 47

13.2.1 Labels on outdoor unit .................................................................................................................................. 48

13.3 System layout ................................................................................................................................................................. 54

13.4 Combining units and options ......................................................................................................................................... 54

13.4.1 Possible options for the outdoor unit ........................................................................................................... 54

13.5 Indoor unit constraints................................................................................................................................................... 55

13.5.1 Constraints for refrigeration.......................................................................................................................... 55

14 Unit installation 57

14.1 Preparing the installation site ........................................................................................................................................ 58

14.1.1 Installation site requirements of the outdoor unit ....................................................................................... 58