Daikin RXYLQ12T7Y1B Manual

Daikin Not categorized RXYLQ12T7Y1B

Read below đź“– the manual in Italian for Daikin RXYLQ12T7Y1B (44 pages) in the Not categorized category. This guide has been helpful for 19 people and has been rated 4.5 stars on average by 2 users

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Installer and user reference guide
VRV IV system air conditioner
RXMLQ8T7Y1B*
RXYLQ10T7Y1B*
RXYLQ12T7Y1B*
RXYLQ14T7Y1B*
Table of contents
Installer and user reference guide
2
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1C – 2025.01
Table of contents
1 About the documentation 6
1.1 About this document...................................................................................................................................................... 6
1.2 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 13
For the user 16
4 User safety instructions 17
4.1 General ........................................................................................................................................................................... 17
4.2 Instructions for safe operation ...................................................................................................................................... 18
5 About the system 21
5.1 System layout ................................................................................................................................................................. 22
6 User interface 23
7 Operation 24
7.1 Before operation ............................................................................................................................................................ 24
7.2 Operation range ............................................................................................................................................................. 24
7.3 Operating the system..................................................................................................................................................... 25
7.3.1 About operating the system.......................................................................................................................... 25
7.3.2 About cooling, heating, fan only, and automatic operation......................................................................... 25
7.3.3 About the heating operation......................................................................................................................... 25
7.3.4 To operate the system (WITHOUT cool/heat changeover remote control switch)..................................... 26
7.3.5 To operate the system (WITH cool/heat changeover remote control switch) ............................................ 26
7.4 Using the dry program ................................................................................................................................................... 27
7.4.1 About the dry program.................................................................................................................................. 27
7.4.2 To use the dry program (WITHOUT cool/heat changeover remote control switch) ................................... 27
7.4.3 To use the dry program (WITH cool/heat changeover remote control switch)........................................... 28
7.5 Adjusting the air flow direction...................................................................................................................................... 28
7.5.1 About the air flow flap................................................................................................................................... 28
7.6 Setting the master user interface .................................................................................................................................. 29
7.6.1 About setting the master user interface....................................................................................................... 29
7.6.2 To designate the master user interface (VRV DX and Hydrobox)................................................................. 30
7.7 About control systems ................................................................................................................................................... 30
8 Energy saving and optimum operation 31
8.1 Available main operation methods................................................................................................................................ 31
8.2 Available comfort settings.............................................................................................................................................. 32
9 Maintenance and service 33
9.1 Maintenance after a long stop period ........................................................................................................................... 33
9.2 Maintenance before a long stop period ........................................................................................................................ 34
9.3 About the refrigerant ..................................................................................................................................................... 34
9.4 After-sales service and warranty ................................................................................................................................... 34
9.4.1 Warranty period ............................................................................................................................................ 34
9.4.2 Recommended maintenance and inspection ............................................................................................... 34
9.4.3 Recommended maintenance and inspection cycles..................................................................................... 35
9.4.4 Shortened maintenance and replacement cycles......................................................................................... 36
10 Troubleshooting 37
10.1 Error codes: Overview.................................................................................................................................................... 38
10.2 Symptoms that are NOT system malfunctions .............................................................................................................. 40
10.2.1 Symptom: The system does not operate ...................................................................................................... 41
10.2.2 Symptom: Cool/Heat cannot be changed over............................................................................................. 41
10.2.3 Symptom: Fan operation is possible, but cooling and heating do not work................................................ 41
10.2.4 Symptom: The fan speed does not correspond to the setting..................................................................... 41
10.2.5 Symptom: The fan direction does not correspond to the setting ................................................................ 41
Table of contents
Installer and user reference guide
3
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1C – 2025.01
10.2.6 Symptom: White mist comes out of a unit (Indoor unit).............................................................................. 41
10.2.7 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)....................................................... 42
10.2.8 Symptom: The user interface reads "U4" or "U5" and stops, but then restarts after a few minutes......... 42
10.2.9 Symptom: Noise of air conditioners (Indoor unit) ........................................................................................ 42
10.2.10 Symptom: Noise of air conditioners (Indoor unit, outdoor unit) ................................................................. 42
10.2.11 Symptom: Noise of air conditioners (Outdoor unit) ..................................................................................... 42
10.2.12 Symptom: Dust comes out of the unit .......................................................................................................... 42
10.2.13 Symptom: The units can give off odours....................................................................................................... 42
10.2.14 Symptom: The outdoor unit fan does not spin............................................................................................. 42
10.2.15 Symptom: The display shows "88" ................................................................................................................ 43
10.2.16 Symptom: The compressor in the outdoor unit does not stop after a short heating operation................. 43
10.2.17 Symptom: The inside of an outdoor unit is warm even when the unit has stopped................................... 43
10.2.18 Symptom: Hot air can be felt when the indoor unit is stopped ................................................................... 43
11 Relocation 44
12 Disposal 45
13 Technical data 46
13.1 Eco Design requirements ............................................................................................................................................... 46
For the installer 47
14 About the box 48
14.1 About LOOP BY DAIKIN................................................................................................................................................... 48
14.2 To unpack the outdoor unit ........................................................................................................................................... 49
14.3 To remove the accessories from the outdoor unit........................................................................................................ 49
14.4 Accessory pipes: Diameters ........................................................................................................................................... 50
14.5 To remove the transportation stay................................................................................................................................ 50
15 About the units and options 51
15.1 Identification label: Outdoor unit .................................................................................................................................. 51
15.2 About the outdoor unit .................................................................................................................................................. 52
15.3 System layout ................................................................................................................................................................. 52
15.4 Combining units and options ......................................................................................................................................... 53
15.4.1 About combining units and options .............................................................................................................. 53
15.4.2 Possible combinations of indoor units .......................................................................................................... 53
15.4.3 Possible combinations of outdoor units........................................................................................................ 53
15.4.4 Possible options for the outdoor unit ........................................................................................................... 54
16 Unit installation 56
16.1 Preparing the installation site ........................................................................................................................................ 56
16.1.1 Installation site requirements of the outdoor unit ....................................................................................... 56
16.1.2 Additional installation site requirements of the outdoor unit in cold climates ........................................... 58
16.1.3 Securing safety against refrigerant leaks ...................................................................................................... 59
16.2 Opening the unit ............................................................................................................................................................ 61
16.2.1 About opening the units................................................................................................................................ 61
16.2.2 To open the outdoor unit .............................................................................................................................. 61
16.2.3 To open the switch box of the outdoor unit ................................................................................................. 62
16.3 Mounting the outdoor unit............................................................................................................................................ 62
16.3.1 To provide the installation structure............................................................................................................. 62
17 Piping installation 64
17.1 Preparing refrigerant piping........................................................................................................................................... 64
17.1.1 Refrigerant piping requirements................................................................................................................... 64
17.1.2 Refrigerant piping insulation ......................................................................................................................... 65
17.1.3 To select the piping size................................................................................................................................. 65
17.1.4 To select refrigerant branch kits ................................................................................................................... 68
17.1.5 About the piping length................................................................................................................................. 69
17.1.6 Piping length: VRV DX only ............................................................................................................................ 70
17.1.7 Piping length: VRV DX and Hydrobox ............................................................................................................ 73
17.1.8 Piping length: VRV DX and RA DX .................................................................................................................. 74
17.1.9 Piping length: AHU......................................................................................................................................... 75
17.1.10 Multiple outdoor units: Possible layouts....................................................................................................... 77
17.2 Connecting the refrigerant piping.................................................................................................................................. 78
17.2.1 About connecting the refrigerant piping ...................................................................................................... 78
17.2.2 Precautions when connecting the refrigerant piping ................................................................................... 79
17.2.3 Multiple outdoor units: Knockout holes ....................................................................................................... 79
17.2.4 To route the refrigerant piping...................................................................................................................... 80
17.2.5 To connect the refrigerant piping to the outdoor unit................................................................................. 80

Product Specifications

Brand: Daikin
Category: Not categorized
Model: RXYLQ12T7Y1B

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