Table of Contents
Installer and user reference guide
2
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV system air conditioner
4P370475-1C – 2016.11
Table of Contents
1 General safety precautions 3
1.1 About the documentation .......................................................... 3
1.1.1 Meaning of warnings and symbols.............................. 3
1.2 For the user ............................................................................... 4
1.3 For the installer.......................................................................... 4
1.3.1 General ....................................................................... 4
1.3.2 Installation site ............................................................ 5
1.3.3 Refrigerant .................................................................. 5
1.3.4 Brine............................................................................ 6
1.3.5 Water .......................................................................... 6
1.3.6 Electrical ..................................................................... 6
2 About the documentation 7
2.1 About this document.................................................................. 7
For the installer 7
3 About the box 7
3.1 Overview: About the box ........................................................... 7
3.2 To unpack the outdoor unit........................................................ 7
3.3 To remove the accessories from the outdoor unit ..................... 8
3.4 Accessory pipes: Diameters...................................................... 8
3.5 To remove the transportation stay............................................. 8
4 About the units and options 8
4.1 Overview: About the units and options...................................... 8
4.2 Identification label: Outdoor unit................................................ 9
4.3 About the outdoor unit ............................................................... 9
4.4 System layout............................................................................ 9
4.5 Combining units and options ..................................................... 9
4.5.1 About combining units and options ............................. 9
4.5.2 Possible combinations of indoor units......................... 9
4.5.3 Possible combinations of outdoor units ...................... 10
4.5.4 Possible options for the outdoor unit........................... 10
5 Preparation 10
5.1 Overview: Preparation ............................................................... 10
5.2 Preparing installation site .......................................................... 11
5.2.1 Installation site requirements of the outdoor unit ........ 11
5.2.2 Additional installation site requirements of the
outdoor unit in cold climates ....................................... 12
5.2.3 Securing safety against refrigerant leaks.................... 12
5.3 Preparing refrigerant piping....................................................... 13
5.3.1 Refrigerant piping requirements.................................. 13
5.3.2 To select the piping size ............................................. 13
5.3.3 To select refrigerant branch kits.................................. 15
5.3.4 About the piping length ............................................... 15
5.3.5 Piping length: VRV DX only ........................................ 16
5.3.6 Piping length: VRV DX and Hydrobox ........................ 17
5.3.7 Piping length: VRV DX and RA DX............................. 18
5.3.8 Requirements in case of FXTQ indoor units............... 18
5.3.9 Multiple outdoor units: Possible layouts...................... 19
5.4 Preparing electrical wiring ......................................................... 20
5.4.1 About electrical compliance ........................................ 20
5.4.2 Safety device requirements ........................................ 20
6 Installation 21
6.1 Overview: Installation ................................................................ 21
6.2 Opening the units ...................................................................... 21
6.2.1 To open the outdoor unit............................................. 21
6.2.2 To open the electrical component box of the outdoor
unit .............................................................................. 21
6.3 Mounting the outdoor unit.......................................................... 22
6.3.1 To provide the installation structure ............................ 22
6.4 Connecting the refrigerant piping .............................................. 22
6.4.1 Precautions when connecting refrigerant piping.......... 22
6.4.2 About connecting the refrigerant piping ....................... 22
6.4.3 To route the refrigerant piping...................................... 23
6.4.4 To connect the refrigerant piping to the outdoor unit ... 23
6.4.5 To connect the multi connection piping kit................... 23
6.4.6 Multiple outdoor units: Knockout holes ........................ 24
6.4.7 To connect the refrigerant branching kit ...................... 24
6.4.8 To protect against contamination................................. 24
6.4.9 To braze the pipe end .................................................. 24
6.4.10 Using the stop valve and service port .......................... 24
6.4.11 To remove the pinched pipes....................................... 25
6.5 Checking the refrigerant piping .................................................. 26
6.5.1 About checking the refrigerant piping .......................... 26
6.5.2 Checking refrigerant piping: General guidelines.......... 27
6.5.3 Checking refrigerant piping: Setup............................... 27
6.5.4 To perform a leak test .................................................. 27
6.5.5 To perform vacuum drying........................................... 27
6.6 To insulate the refrigerant piping ................................................ 27
6.7 Charging refrigerant ................................................................... 28
6.7.1 Precautions when charging refrigerant ........................ 28
6.7.2 About charging refrigerant ........................................... 28
6.7.3 To determine the additional refrigerant amount........... 28
6.7.4 To charge refrigerant: Flow chart................................. 30
6.7.5 To charge refrigerant ................................................... 32
6.7.6 Step 6a: To automatically charge refrigerant............... 33
6.7.7 Step 6b: To manually charge refrigerant...................... 34
6.7.8 Error codes when charging refrigerant......................... 35
6.7.9 Checks after charging refrigerant................................. 35
6.7.10 To fix the fluorinated greenhouse gases label ............. 35
6.8 Connecting the electrical wiring.................................................. 35
6.8.1 Precautions when connecting electrical wiring ............ 35
6.8.2 Field wiring: Overview.................................................. 36
6.8.3 About the electrical wiring............................................ 36
6.8.4 Guidelines when knocking out knockout holes ............ 37
6.8.5 To route and fix the transmission wiring ...................... 37
6.8.6 To connect the transmission wiring.............................. 37
6.8.7 To finish the transmission wiring.................................. 38
6.8.8 To route and fix the power supply................................ 38
6.8.9 To connect the power supply....................................... 38
7 Configuration 39
7.1 Overview: Configuration ............................................................. 39
7.2 Making field settings................................................................... 39
7.2.1 About making field settings.......................................... 39
7.2.2 Field setting components............................................. 39
7.2.3 To access the field setting components....................... 40
7.2.4 To access mode 1 or 2 ................................................ 40
7.2.5 To use mode 1............................................................. 40
7.2.6 To use mode 2............................................................. 41
7.2.7 Mode 1: Monitoring settings......................................... 41
7.2.8 Mode 2: Field settings.................................................. 42
7.2.9 To connect the PC configurator to the outdoor unit ..... 45
7.3 Energy saving and optimum operation....................................... 45
7.3.1 Available main operation methods............................... 45
7.3.2 Available comfort settings............................................ 46
7.3.3 Example: Automatic mode during cooling.................... 47
7.3.4 Example: Automatic mode during heating ................... 47
7.4 Using the leak detection function ............................................... 48
7.4.1 About automatic leak detection.................................... 48
7.4.2 To manually perform a leak detection.......................... 48
8 Commissioning 48
8.1 Overview: Commissioning.......................................................... 48
8.2 Precautions when commissioning .............................................. 49
8.3 Checklist before commissioning................................................. 49
8.4 About test run ............................................................................. 49
8.5 To perform a test run .................................................................. 50
8.6 Correcting after abnormal completion of the test run ................. 50
8.7 Operating the unit....................................................................... 51
