Daikin VRV IV Series - Table of Contents

Table of Contents
Installer and user reference guide
2
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
Table of Contents
1 About the documentation 6
1.1 About this document ...................................................................................................................................................... 6
1.2 Meaning of warnings and symbols................................................................................................................................. 7
2 General safety precautions 9
2.1 For the installer............................................................................................................................................................... 9
2.1.1 General ........................................................................................................................................................... 9
2.1.2 Installation site ............................................................................................................................................... 10
2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 10
2.1.4 Electrical ......................................................................................................................................................... 12
3 Specific installer safety instructions 15
For the user 18
4 User safety instructions 19
4.1 General............................................................................................................................................................................ 19
4.2 Instructions for safe operation ....................................................................................................................................... 20
5 About the system 23
5.1 System layout.................................................................................................................................................................. 23
6 User interface 24
7 Operation 25
7.1 Before operation............................................................................................................................................................. 25
7.2 Operation range.............................................................................................................................................................. 26
7.3 Operating the system ..................................................................................................................................................... 26
7.3.1 About operating the system........................................................................................................................... 26
7.3.2 About cooling, heating, fan only, and automatic operation ......................................................................... 27
7.3.3 About the heating operation.......................................................................................................................... 27
7.3.4 To operate the system (WITHOUT cool/heat changeover remote control switch)...................................... 28
7.3.5 To operate the system (WITH cool/heat changeover remote control switch)............................................. 28
7.4 Using the dry program.................................................................................................................................................... 29
7.4.1 About the dry program................................................................................................................................... 29
7.4.2 To use the dry program (WITHOUT cool/heat changeover remote control switch) .................................... 29
7.4.3 To use the dry program (WITH cool/heat changeover remote control switch) ........................................... 29
7.5 Adjusting the air flow direction ...................................................................................................................................... 30
7.5.1 About the air flow flap.................................................................................................................................... 30
7.6 Setting the master user interface................................................................................................................................... 31
7.6.1 About setting the master user interface........................................................................................................ 31
7.6.2 To designate the master user interface (VRV DX) ......................................................................................... 31
8 Energy saving and optimum operation 32
8.1 Available main operation methods ................................................................................................................................ 32
8.2 Available comfort settings .............................................................................................................................................. 33
9 Maintenance and service 34
9.1 Maintenance after a long stop period............................................................................................................................ 34
9.2 Maintenance before a long stop period......................................................................................................................... 35
9.3 About the refrigerant...................................................................................................................................................... 35
9.4 After-sales service and warranty .................................................................................................................................... 35
9.4.1 Warranty period ............................................................................................................................................. 35
9.4.2 Recommended maintenance and inspection................................................................................................ 36
9.4.3 Recommended maintenance and inspection cycles ..................................................................................... 36
9.4.4 Shortened maintenance and replacement cycles ......................................................................................... 37
10 Troubleshooting 38
10.1 Error codes: Overview .................................................................................................................................................... 39
10.2 Symptoms that are NOT system malfunctions............................................................................................................... 41
10.2.1 Symptom: The system does not operate....................................................................................................... 42
10.2.2 Symptom: Cool/Heat cannot be changed over ............................................................................................. 42
10.2.3 Symptom: Fan operation is possible, but cooling and heating do not work ................................................ 42
10.2.4 Symptom: The fan speed does not correspond to the setting...................................................................... 42
10.2.5 Symptom: The fan direction does not correspond to the setting................................................................. 42
10.2.6 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 42