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Table of contents
Installation and operation manual
4
RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543426-1 – 2018.07
Table of contents
About this document..................................................................
To remove the accessories from the outdoor unit .....................
Accessory pipes: Diameters ......................................................
To remove the transportation stay.............................................
About the outdoor unit ...............................................................
System layout ............................................................................
Preparing the installation site ....................................................
Installation site requirements of the outdoor unit ........
Preparing refrigerant piping .......................................................
Refrigerant piping requirements..................................
To select the piping size .............................................
To select refrigerant branch kits..................................
Multiple outdoor units: Possible layouts......................
Preparing electrical wiring .........................................................
Safety device requirements ........................................
Opening the units ......................................................................
To open the outdoor unit............................................. 10
Mounting the outdoor unit..........................................................
To provide the installation structure ............................ 10
Connecting the refrigerant piping ..............................................
To route the refrigerant piping..................................... 11
To connect the refrigerant piping to the outdoor unit .. 11
To connect the multi connection piping kit .................. 11
Multiple outdoor units: Knockout holes ....................... 12
To protect against contamination................................ 12
Using the stop valve and service port ......................... 12
To remove the pinched pipes...................................... 13
Checking the refrigerant piping .................................................
About checking the refrigerant piping ......................... 13
Checking refrigerant piping: General guidelines ......... 14
Checking refrigerant piping: Setup.............................. 14
To perform a leak test ................................................. 14
To perform vacuum drying .......................................... 14
To insulate the refrigerant piping...............................................
Charging refrigerant ..................................................................
Precautions when charging refrigerant ....................... 15
About charging refrigerant .......................................... 15
To determine the additional refrigerant amount .......... 15
To charge refrigerant: Flow chart................................ 16
To charge refrigerant .................................................. 17
Step 6: To manually charge refrigerant....................... 18
Checks after charging refrigerant................................ 18
To fix the fluorinated greenhouse gases label ............ 18
Connecting the electrical wiring.................................................
Field wiring: Overview................................................. 18
Guidelines when knocking out knockout holes ........... 19
To route and fix the transmission wiring ..................... 19
To connect the transmission wiring............................. 19
To finish the transmission wiring................................. 19
To route and fix the power supply............................... 20
To connect the power supply ....................................... 20
Making field settings ................................................................... 20
About making field settings .......................................... 20
Field setting components ............................................. 21
To access the field setting components....................... 21
To access mode 1 or 2 ................................................ 21
To use mode 1 ............................................................. 22
To use mode 2 ............................................................. 22
Mode 1: Monitoring settings......................................... 22
Mode 2: Field settings.................................................. 22
To connect the PC configurator to the outdoor unit ..... 23
Precautions when commissioning .............................................. 24
Checklist before commissioning ................................................. 24
About the test run ....................................................................... 24
To perform a test run .................................................................. 24
Correcting after abnormal completion of the test run ................. 25
Solving problems based on error codes ..................................... 25
Error codes: Overview ................................................................ 26
Service space: Outdoor unit ....................................................... 28
Piping diagram: Outdoor unit...................................................... 29
Wiring diagram: Outdoor unit ..................................................... 30
System layout ............................................................................. 31
Operation range ......................................................................... 31
Operating the system ................................................................. 31
About operating the system ......................................... 31
About the heating operation......................................... 31
Using the dry program ................................................................ 32
About the dry program ................................................. 32
Adjusting the air flow direction.................................................... 32
About the air flow flap .................................................. 33
Setting the master user interface ............................................... 33
About setting the master user interface ....................... 33
About the refrigerant................................................................... 33
After-sales service and warranty ................................................ 34
Warranty period ........................................................... 34
Recommended maintenance and inspection............... 34
Error codes: Overview ................................................................ 34
Symptoms that are NOT system malfunctions ........................... 35
Symptom: The system does not operate ..................... 35
Summary of Contents for VRV IV RXMLQ8T7Y1B Series
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