Table of contents
Installer and user reference guide
3
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1 – 2020.01
11.1 Error codes: Overview .................................................................................................................................................... 51
11.2 Symptoms that are NOT system malfunctions............................................................................................................... 53
11.2.1 Symptom: The system does not operate....................................................................................................... 53
11.2.2 Symptom: Cool/Heat cannot be changed over ............................................................................................. 53
11.2.3 Symptom: Fan operation is possible, but cooling and heating do not work ................................................ 53
11.2.4 Symptom: The fan speed does not correspond to the setting...................................................................... 53
11.2.5 Symptom: The fan direction does not correspond to the setting................................................................. 53
11.2.6 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 54
11.2.7 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)........................................................ 54
11.2.8 Symptom: The user interface reads "U4" or "U5" and stops, but then restarts after a few minutes.......... 54
11.2.9 Symptom: Noise of air conditioners (Indoor unit)......................................................................................... 54
11.2.10 Symptom: Noise of air conditioners (Indoor unit, outdoor unit) .................................................................. 54
11.2.11 Symptom: Noise of air conditioners (Outdoor unit)...................................................................................... 54
11.2.12 Symptom: Dust comes out of the unit........................................................................................................... 55
11.2.13 Symptom: The units can give off odours ....................................................................................................... 55
11.2.14 Symptom: The outdoor unit fan does not spin.............................................................................................. 55
11.2.15 Symptom: The compressor in the outdoor unit does not stop after a short heating operation ................. 55
11.2.16 Symptom: The inside of an outdoor unit is warm even when the unit has stopped.................................... 55
11.2.17 Symptom: Hot air can be felt when the indoor unit is stopped.................................................................... 55
12 Relocation 56
13 Disposal 57
14 Technical data 58
14.1 Information requirements for Eco Design...................................................................................................................... 58
For the installer 59
15 About the box 60
15.1 Overview: About the box ................................................................................................................................................ 60
15.2 Outdoor unit ................................................................................................................................................................... 61
15.2.1 To unpack the outdoor unit ........................................................................................................................... 61
15.2.2 To handle the outdoor unit............................................................................................................................ 61
15.2.3 To remove the accessories from the outdoor unit........................................................................................ 62
16 About the units and options 63
16.1 Overview: About the units and options.......................................................................................................................... 63
16.2 Identification ................................................................................................................................................................... 64
16.2.1 Identification label: Outdoor unit .................................................................................................................. 64
16.3 About the outdoor unit................................................................................................................................................... 64
16.4 System layout.................................................................................................................................................................. 65
16.5 Combining units and options.......................................................................................................................................... 65
16.5.1 About combining units and options............................................................................................................... 65
16.5.2 Possible combinations of indoor units........................................................................................................... 65
16.5.3 Possible options for the outdoor unit............................................................................................................ 66
17 Unit installation 67
17.1 Preparing the installation site......................................................................................................................................... 67
17.1.1 Installation site requirements of the outdoor unit........................................................................................ 67
17.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 70
17.2 Opening and closing the unit.......................................................................................................................................... 71
17.2.1 About opening the units................................................................................................................................. 71
17.2.2 To open the outdoor unit............................................................................................................................... 71
17.2.3 To close the outdoor unit............................................................................................................................... 71
17.3 Mounting the outdoor unit............................................................................................................................................. 73
17.3.1 About mounting the outdoor unit ................................................................................................................. 73
17.3.2 Precautions when mounting the outdoor unit.............................................................................................. 73
17.3.3 To provide the installation structure ............................................................................................................. 73
17.3.4 To install the outdoor unit ............................................................................................................................. 74
17.3.5 To provide drainage........................................................................................................................................ 74
17.3.6 To prevent the outdoor unit from falling over .............................................................................................. 75
18 Piping installation 77
18.1 Preparing refrigerant piping ........................................................................................................................................... 77
18.1.1 Refrigerant piping requirements.................................................................................................................... 77
18.1.2 Refrigerant piping material ............................................................................................................................ 77
18.1.3 To select the piping size ................................................................................................................................. 78
18.1.4 To select refrigerant branch kits .................................................................................................................... 79
18.1.5 Refrigerant piping length and height difference ........................................................................................... 80
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