Daikin VRV 5 RXYA8A7Y1B - Table of Contents

Table of contents
Installer and user reference guide
2
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
Table of contents
1 About this document 6
1.1 Meaning of warnings and symbols................................................................................................................................. 6
2 General safety precautions 8
2.1 For the installer............................................................................................................................................................... 8
2.1.1 General ........................................................................................................................................................... 8
2.1.2 Installation site ............................................................................................................................................... 9
2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 9
2.1.4 Electrical ......................................................................................................................................................... 11
3 Specific installer safety instructions 14
3.1 Instructions for equipment using R32 refrigerant ......................................................................................................... 18
For the user 20
4 User safety instructions 21
4.1 General............................................................................................................................................................................ 21
4.2 Instructions for safe operation ....................................................................................................................................... 22
5 About the system 27
5.1 System layout.................................................................................................................................................................. 28
6 User interface 29
7 Operation 30
7.1 Before operation............................................................................................................................................................. 30
7.2 Operation range.............................................................................................................................................................. 30
7.3 Operating the system ..................................................................................................................................................... 31
7.3.1 About operating the system........................................................................................................................... 31
7.3.2 About cooling, heating, fan only, and automatic operation ......................................................................... 31
7.3.3 About the heating operation.......................................................................................................................... 31
7.3.4 To operate the system (WITHOUT cool/heat changeover remote control switch)...................................... 32
7.3.5 To operate the system (WITH cool/heat changeover remote control switch)............................................. 33
7.4 Using the dry program.................................................................................................................................................... 33
7.4.1 About the dry program................................................................................................................................... 33
7.4.2 To use the dry program (WITHOUT cool/heat changeover remote control switch) .................................... 34
7.4.3 To use the dry program (WITH cool/heat changeover remote control switch) ........................................... 34
7.5 Adjusting the air flow direction ...................................................................................................................................... 35
7.5.1 About the air flow flap.................................................................................................................................... 35
7.6 Setting the master user interface................................................................................................................................... 36
7.6.1 About setting the master user interface........................................................................................................ 36
7.6.2 To designate the master user interface......................................................................................................... 36
7.7 About control systems .................................................................................................................................................... 36
8 Energy saving and optimum operation 38
8.1 Available main operation methods ................................................................................................................................ 39
8.2 Available comfort settings .............................................................................................................................................. 39
9 Maintenance and service 40
9.1 Precautions for maintenance and service...................................................................................................................... 40
9.2 Maintenance before a long stop period......................................................................................................................... 40
9.3 Maintenance after a long stop period............................................................................................................................ 40
9.4 About the refrigerant...................................................................................................................................................... 41
9.5 After-sales service........................................................................................................................................................... 41
9.5.1 Recommended maintenance and inspection................................................................................................ 41
9.5.2 Recommended maintenance and inspection cycles ..................................................................................... 42
9.5.3 Shortened maintenance and replacement cycles ......................................................................................... 42
10 Troubleshooting 44
10.1 Error codes: Overview .................................................................................................................................................... 45
10.2 Symptoms that are NOT system malfunctions............................................................................................................... 48
10.2.1 Symptom: The system does not operate....................................................................................................... 48
10.2.2 Symptom: Cool/Heat cannot be changed over ............................................................................................. 48
10.2.3 Symptom: Fan operation is possible, but cooling and heating do not work ................................................ 48
10.2.4 Symptom: The fan speed does not correspond to the setting...................................................................... 48
10.2.5 Symptom: The fan direction does not correspond to the setting................................................................. 49