Daikin LREN8A7Y1B - Table of Contents

Table of contents
Installer and user reference guide
2
LREN8~12A7 + LRNUN5A7
CO₂ ZEAS outdoor unit and capacity up unit
4P704142-1 – 2022.08
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........................................................................................................................ 10
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............................................................................................................................ 42
12.1.4 To remove the accessories from the outdoor unit........................................................................................ 43
13 About the units and options 45
13.1 Identification ................................................................................................................................................................... 45
13.1.1 Identification label: Outdoor unit .................................................................................................................. 45
13.2 About the outdoor unit................................................................................................................................................... 46
13.2.1 Labels on outdoor unit ................................................................................................................................... 47
13.3 System layout.................................................................................................................................................................. 53
13.4 Combining units and options.......................................................................................................................................... 53
13.4.1 Possible options for the outdoor unit............................................................................................................ 53
13.5 Indoor unit constraints ................................................................................................................................................... 54
13.5.1 Constraints for refrigeration .......................................................................................................................... 54
14 Unit installation 56
14.1 Preparing the installation site......................................................................................................................................... 56
14.1.1 Installation site requirements of the outdoor unit........................................................................................ 57