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Table of Contents
Installation and operation manual
2
RXYTQ8~16T7YF
VRV IV system air conditioner
4P388987-1C – 2016.02
Table of Contents
1 About the documentation
3
1.1
About this document..................................................................
3
For the installer
3
2 About the box
3
2.1
To remove the accessories from the outdoor unit .....................
3
2.2
Accessory pipes: Diameters ......................................................
3
2.3
To remove the transportation stay.............................................
3
3 About the units and options
4
3.1
About the outdoor unit ...............................................................
4
3.2
System layout ............................................................................
4
4 Preparation
4
4.1
Preparing installation site ..........................................................
4
4.1.1
Installation site requirements of the outdoor unit ........
4
4.1.2
Additional installation site requirements of the
outdoor unit in cold climates .......................................
4
4.2
Preparing refrigerant piping .......................................................
4
4.2.1
Refrigerant piping requirements..................................
4
4.2.2
To select the piping size .............................................
5
4.2.3
To select refrigerant branch kits..................................
6
4.2.4
Multiple outdoor units: Possible layouts......................
6
4.3
Preparing electrical wiring .........................................................
7
4.3.1
Safety device requirements ........................................
7
5 Installation
7
5.1
Opening the units ......................................................................
7
5.1.1
To open the outdoor unit.............................................
7
5.1.2
To open the electrical component box of the outdoor
unit ..............................................................................
7
5.2
Mounting the outdoor unit..........................................................
8
5.2.1
To provide the installation structure ............................
8
5.3
Connecting the refrigerant piping ..............................................
8
5.3.1
To route the refrigerant piping.....................................
8
5.3.2
To connect the refrigerant piping to the outdoor unit ..
9
5.3.3
To connect the multi connection piping kit ..................
9
5.3.4
Multiple outdoor units: Knockout holes .......................
9
5.3.5
To protect against contamination................................
9
5.3.6
Using the stop valve and service port .........................
9
5.3.7
To remove the pinched pipes...................................... 10
5.4
Checking the refrigerant piping .................................................
11
5.4.1
About checking the refrigerant piping ......................... 11
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 ................................................. 12
5.4.5
To perform vacuum drying .......................................... 12
5.5
To insulate the refrigerant piping...............................................
12
5.6
Charging refrigerant ..................................................................
12
5.6.1
Precautions when charging refrigerant ....................... 12
5.6.2
About charging refrigerant .......................................... 13
5.6.3
To determine the additional refrigerant amount .......... 13
5.6.4
To charge refrigerant: Flow chart................................ 13
5.6.5
To charge refrigerant .................................................. 15
5.6.6
Step 6: To manually charge refrigerant....................... 15
5.6.7
Error codes when charging refrigerant........................ 16
5.6.8
Checks after charging refrigerant................................ 16
5.7
Connecting the electrical wiring.................................................
16
5.7.1
Field wiring: Overview................................................. 16
5.7.2
Guidelines when knocking out knockout holes ........... 16
5.7.3
To route and fix the transmission wiring ..................... 16
5.7.4
To connect the transmission wiring............................. 17
5.7.5
To finish the transmission wiring................................. 17
5.7.6
To route and fix the power supply............................... 17
5.7.7
To connect the power supply ....................................... 17
6 Configuration
18
6.1
Making field settings ................................................................... 18
6.1.1
About making field settings .......................................... 18
6.1.2
Field setting components ............................................. 18
6.1.3
To access the field setting components....................... 19
6.1.4
To access mode 1 or 2 ................................................ 19
6.1.5
To use mode 1 ............................................................. 19
6.1.6
To use mode 2 ............................................................. 19
6.1.7
Mode 1: Monitoring settings......................................... 20
6.1.8
Mode 2: Field settings.................................................. 20
6.1.9
To connect the PC configurator to the outdoor unit ..... 21
7 Commissioning
21
7.1
Precautions when commissioning .............................................. 21
7.2
Checklist before commissioning ................................................. 21
7.3
About test run ............................................................................. 22
7.4
To perform a test run .................................................................. 22
7.5
Correcting after abnormal completion of the test run ................. 22
8 Troubleshooting
22
8.1
Solving problems based on error codes ..................................... 22
8.2
Error codes: Overview ................................................................ 23
9 Technical data
25
9.1
Service space: Outdoor unit ....................................................... 25
9.2
Piping diagram: Outdoor unit...................................................... 26
For the user
28
10 About the system
28
11 User interface
28
12 Operation
28
12.1
Operation range ......................................................................... 28
12.2
Operating the system ................................................................. 28
12.2.1
About operating the system ......................................... 28
12.2.2
About cooling, heating, fan only, and automatic
operation ...................................................................... 28
12.2.3
About the heating operation......................................... 28
12.2.4
To operate the system (WITHOUT cool/heat
changeover remote control switch) .............................. 28
12.2.5
To operate the system (WITH cool/heat changeover
remote control switch).................................................. 29
12.3
Using the dry program ................................................................ 29
12.3.1
About the dry program ................................................. 29
12.3.2
To use the dry program (WITHOUT cool/heat
changeover remote control switch) .............................. 29
12.3.3
To use the dry program (WITH cool/heat changeover
remote control switch).................................................. 29
12.4
Adjusting the air flow direction.................................................... 29
12.4.1
About the air flow flap .................................................. 29
12.5
Setting the master user interface ............................................... 30
12.5.1
About setting the master user interface ....................... 30
13 Maintenance and service
30
13.1
About the refrigerant................................................................... 30
13.2
After-sales service and warranty ................................................ 30
13.2.1
Warranty period ........................................................... 30
13.2.2
Recommended maintenance and inspection............... 31
14 Troubleshooting
31
14.1
Error codes: Overview ................................................................ 31
14.2
Symptoms that are not air conditioner troubles .......................... 32
14.2.1
Symptom: The system does not operate ..................... 32
14.2.2
Symptom: Cool/Heat cannot be changed over ............ 32
14.2.3
Symptom: Fan operation is possible, but cooling and
heating do not work...................................................... 32
14.2.4
Symptom: The fan strength does not correspond to
the setting .................................................................... 32
Summary of Contents for RXYTQ8T7YF
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