Table of contents
Installer and user reference guide
3
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1D – 2023.02
10.2.2 Symptom: Cool/Heat cannot be changed over ............................................................................................. 47
10.2.3 Symptom: Fan operation is possible, but cooling and heating do not work ................................................ 47
10.2.4 Symptom: The fan speed does not correspond to the setting...................................................................... 47
10.2.5 Symptom: The fan direction does not correspond to the setting................................................................. 48
10.2.6 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 48
10.2.7 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)........................................................ 48
10.2.8 Symptom: The user interface reads "U4" or "U5" and stops, but then restarts after a few minutes.......... 48
10.2.9 Symptom: Noise of air conditioners (Indoor unit)......................................................................................... 48
10.2.10 Symptom: Noise of air conditioners (Indoor unit, outdoor unit) .................................................................. 48
10.2.11 Symptom: Noise of air conditioners (Outdoor unit)...................................................................................... 49
10.2.12 Symptom: Dust comes out of the unit........................................................................................................... 49
10.2.13 Symptom: The units can give off odours ....................................................................................................... 49
10.2.14 Symptom: The outdoor unit fan does not spin.............................................................................................. 49
10.2.15 Symptom: The compressor in the outdoor unit does not stop after a short heating operation ................. 49
10.2.16 Symptom: The inside of an outdoor unit is warm even when the unit has stopped.................................... 49
10.2.17 Symptom: Hot air can be felt when the indoor unit is stopped.................................................................... 49
11 Relocation 50
12 Disposal 51
13 Technical data 52
13.1 Eco Design requirements................................................................................................................................................ 52
For the installer 53
14 About the box 54
14.1 Overview: About the box ................................................................................................................................................ 54
14.2 Outdoor unit ................................................................................................................................................................... 55
14.2.1 To unpack the outdoor unit ........................................................................................................................... 55
14.2.2 To handle the outdoor unit ............................................................................................................................ 55
14.2.3 To remove the accessories from the outdoor unit........................................................................................ 56
15 About the units and options 57
15.1 Identification ................................................................................................................................................................... 57
15.1.1 Identification label: Outdoor unit .................................................................................................................. 57
15.2 About the outdoor unit................................................................................................................................................... 57
15.3 System layout.................................................................................................................................................................. 58
15.4 Combining units and options.......................................................................................................................................... 58
15.4.1 About combining units and options............................................................................................................... 58
15.4.2 Possible combinations of indoor units........................................................................................................... 59
15.4.3 Possible options for the outdoor unit ............................................................................................................ 59
16 Special requirements for R32 units 60
16.1 Installation space requirements ..................................................................................................................................... 60
16.2 System layout requirements........................................................................................................................................... 60
16.3 To determine the charge limit........................................................................................................................................ 65
17 Unit installation 72
17.1 Preparing the installation site......................................................................................................................................... 72
17.1.1 Installation site requirements of the outdoor unit........................................................................................ 72
17.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 75
17.2 Opening and closing the unit.......................................................................................................................................... 76
17.2.1 About opening the units................................................................................................................................. 76
17.2.2 To open the outdoor unit............................................................................................................................... 76
17.2.3 To close the outdoor unit............................................................................................................................... 76
17.3 Mounting the outdoor unit............................................................................................................................................. 77
17.3.1 About mounting the outdoor unit ................................................................................................................. 77
17.3.2 Precautions when mounting the outdoor unit .............................................................................................. 77
17.3.3 To provide the installation structure ............................................................................................................. 77
17.3.4 To install the outdoor unit ............................................................................................................................. 78
17.3.5 To provide drainage........................................................................................................................................ 78
17.3.6 To prevent the outdoor unit from falling over .............................................................................................. 80
18 Piping installation 81
18.1 Preparing refrigerant piping ........................................................................................................................................... 81
18.1.1 Refrigerant piping requirements.................................................................................................................... 81
18.1.2 Refrigerant piping material ............................................................................................................................ 81
18.1.3 To select the piping size ................................................................................................................................. 82
18.1.4 To select refrigerant branch kits .................................................................................................................... 83
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