Table of Contents
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Table of contents
1.1
About this document..................................................................
2.1
Outdoor unit...............................................................................
2.1.1
2.1.2
To remove the transportation stay ..............................
3.1
About the outdoor unit ...............................................................
3.2
System layout............................................................................
4.1
Preparing the installation site ....................................................
4.1.1
4.1.2
outdoor unit in cold climates .......................................
4.2
Preparing refrigerant piping.......................................................
4.2.1
Refrigerant piping requirements..................................
4.2.2
Refrigerant piping material..........................................
4.2.3
To select the piping size .............................................
4.2.4
To select refrigerant branch kits..................................
4.3
Preparing electrical wiring .........................................................
4.3.1
Safety device requirements ........................................
5.1
Opening the units ......................................................................
5.1.1
To open the outdoor unit.............................................
5.2
Mounting the outdoor unit..........................................................
5.2.1
To provide the installation structure ............................
5.2.2
To install the outdoor unit............................................
5.2.3
To provide drainage ....................................................
5.2.4
To prevent the outdoor unit from falling over ..............
5.3
Connecting the refrigerant piping ..............................................
5.3.1
Using the stop valve and service port .........................
5.3.2
To remove the pinched pipes......................................
5.3.3
5.4
Checking the refrigerant piping ................................................. 10
5.4.1
About checking the refrigerant piping ......................... 10
5.4.2
Checking refrigerant piping: General guidelines ......... 11
5.4.3
Checking refrigerant piping: Setup.............................. 11
5.4.4
To perform a leak test ................................................. 11
5.4.5
To perform vacuum drying .......................................... 11
5.5
To insulate the refrigerant piping............................................... 11
5.6
Charging refrigerant .................................................................. 12
5.6.1
Precautions when charging refrigerant ....................... 12
5.6.2
To determine the additional refrigerant amount .......... 12
5.6.3
To charge refrigerant .................................................. 12
5.6.4
Error codes when charging refrigerant........................ 13
5.6.5
To fix the fluorinated greenhouse gases label ............ 13
5.7
Connecting the electrical wiring................................................. 14
5.7.1
Field wiring: Overview................................................. 14
5.7.2
Guidelines when knocking out knockout holes ........... 14
5.7.3
5.7.4
5.8
Finishing the outdoor unit installation ........................................ 15
5.8.1
To finish the transmission wiring................................. 15
6.1
Making field settings.................................................................. 15
6.1.1
About making field settings ......................................... 15
6.1.2
To access the field setting components...................... 16
6.1.3
Field setting components ............................................ 16
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VRV IV-S system air conditioner
4P524881-1 - 2018.02
6.1.4
To access mode 1 or 2 ................................................ 16
6.1.5
To use mode 1 ............................................................. 17
6.1.6
To use mode 2 ............................................................. 17
6.1.7
6.1.8
Mode 2: Field settings.................................................. 18
4
6.1.9
4
7.1
Precautions when commissioning .............................................. 20
4
7.2
Checklist before commissioning................................................. 20
7.3
Checklist during commissioning ................................................. 21
4
7.3.1
About the test run......................................................... 21
4
7.3.2
To perform a test run (7-segments display) ................. 21
4
7.3.3
4
7.3.4
Operating the unit ........................................................ 21
4
4
8.1
Solving problems based on error codes..................................... 21
5
8.1.1
Error codes: Overview ................................................. 22
5
5
9.1
Overview: Technical data ........................................................... 23
5
9.2
Dimensions: Outdoor unit........................................................... 24
9.3
Service space: Outdoor unit ....................................................... 25
5
9.4
Piping diagram: Outdoor unit...................................................... 26
5
9.5
Wiring diagram: Outdoor unit ..................................................... 27
5
9.6
Technical specifications: Outdoor unit........................................ 28
5
9.7
Capacity table: Indoor unit.......................................................... 30
6
6
7
7
7
10.1
System layout............................................................................. 31
7
7
7
7
12.1
Operation range ......................................................................... 31
7
12.2
Operating the system ................................................................. 31
7
12.2.1
About operating the system ......................................... 31
8
12.2.2
8
operation ...................................................................... 31
8
12.2.3
About the heating operation......................................... 31
9
12.2.4
To operate the system ................................................. 32
9
12.3
Using the dry program................................................................ 32
12.3.1
About the dry program ................................................. 32
12.3.2
To use the dry program................................................ 32
12.4
Adjusting the air flow direction.................................................... 32
12.4.1
About the air flow flap .................................................. 32
12.5
Setting the master user interface ............................................... 32
12.5.1
About setting the master user interface ....................... 32
12.5.2
12.5.3
To designate the master user interface (RA DX) ......... 33
13.1
About the refrigerant................................................................... 33
13.2
After-sales service and warranty ................................................ 33
13.2.1
Warranty period ........................................................... 33
13.2.2
Recommended maintenance and inspection............... 33
14.1
Error codes: Overview................................................................ 34
14.2
Symptoms that are NOT system malfunctions ........................... 35
14.2.1
Symptom: The system does not operate ..................... 35
14.2.2
heating do not work...................................................... 35
15
14.2.3
the setting .................................................................... 35
14.2.4
the setting .................................................................... 35
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Installation and operation manual
3
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Troubleshooting
