Table of contents
Installation and operation manual
3
SV1ASV4~8A14AJV1B
VRV 5 safety valve unit
4P709466-1 – 2023.09
Table of contents
2 Specific installer safety instructions
Instructions for equipment using R32 refrigerant ......................
General......................................................................................
Instructions for safe operation ...................................................
System layout ............................................................................
Precautions for maintenance and service .................................
About the refrigerant..................................................................
About the refrigerant leakage sensor.......................... 10
Symptoms that are NOT system malfunctions ..........................
Symptom: noise .......................................................... 11
To remove the accessories .......................................................
Identification ..............................................................................
Identification label: SV unit.......................................... 12
About the operation range.........................................................
System layout ............................................................................
Combining units and options .....................................................
Possible options for the SV unit .................................. 13
12 Special requirements for R32 units
Installation space requirements.................................................
System layout requirements ......................................................
To determine the required safety measures..............................
Overview: flowchart..................................................... 15
Safety measures .......................................................................
No safety measure...................................................... 16
External alarm............................................................. 16
Natural ventilation ....................................................... 16
Ventilated enclosure ................................................... 17
Overview: flowchart..................................................... 21
Combinations of ventilated enclosure configurations ................
Combinations of safety measures .............................................
Preparing the installation site ....................................................
Installation site requirements of the unit ..................... 23
Possible configurations .............................................................
Opening and closing the unit.....................................................
About opening the unit ................................................ 25
To open the unit .......................................................... 25
To close the unit.......................................................... 25
Mounting the unit .......................................................................
To mount the unit ........................................................ 25
To connect the drain piping.......................................... 26
To install the drain piping ............................................. 27
Installing the ventilation ducting ................................................. 27
To install the ducting .................................................... 27
To install the duct closing plate.................................... 27
To switch the air in- and outlet side ............................. 28
Installation limitations ................................................................. 31
Piping installation limitation.......................................... 31
Preparing refrigerant piping ........................................................ 31
Refrigerant piping requirements................................... 31
Refrigerant piping material........................................... 31
Refrigerant piping insulation ........................................ 31
Connecting the refrigerant piping ............................................... 32
To connect the refrigerant piping ................................. 32
Joining branch pipe ports............................................. 32
To insulate the refrigerant piping ................................................ 32
Specifications of standard wiring components ........................... 33
Connecting the electrical wiring.................................................. 34
To connect the electrical wiring .................................................. 34
To finish the electrical wiring ...................................................... 36
To set the DIP switches.............................................................. 36
To connect the external outputs ................................................. 36
Making field settings ................................................................... 37
About making field settings .......................................... 37
To access the field setting components....................... 38
Field setting components ............................................. 38
To access mode 1 or 2 ................................................ 38
To use mode 1 ............................................................. 38
To use mode 2 ............................................................. 39
Mode 1: monitoring settings......................................... 39
Mode 2: field settings ................................................... 39
Mode 2: default field settings ....................................... 41
Checklist before commissioning ................................................. 41
SV unit test run ........................................................................... 41
About the SV unit test run ............................................ 41
About airflow requirements .......................................... 42
About measuring the airflow rate ................................. 42
To perform a SV unit test run....................................... 43
Troubleshooting during a SV unit test run.................... 43
System test run .......................................................................... 43
Checklist before commissioning .................................. 43
System test run ............................................................ 43
Before the maintenance and service of the SV unit ................... 44
SV unit maintenance and service label ...................................... 44
Overview: Troubleshooting......................................................... 44
Precautions when troubleshooting ............................................. 44
Solving problems based on error codes ..................................... 44
Error codes: Overview ................................................. 44
Wiring diagram ........................................................................... 45
Summary of Contents for VRV 5
Page 47: ......
