Table of Contents
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Table of contents
2.1
Instructions for equipment using R32 refrigerant ......................
3.1
General......................................................................................
3.2
Instructions for safe operation ...................................................
4.1
System layout............................................................................ 10
6.1
Precautions for maintenance and service ................................. 11
6.2
Periodic check of the ventilated enclosure ................................ 11
6.3
About the refrigerant.................................................................. 11
6.3.1
About the refrigerant leakage sensor.......................... 11
7.1
Symptoms that are NOT system malfunctions .......................... 12
7.1.1
Symptom: Noise.......................................................... 12
10.1
To remove the accessories ....................................................... 13
11.1
About combining units and options ........................................... 13
11.1.1
Possible options for the BS unit .................................. 13
11.2
Identification .............................................................................. 13
11.2.1
Identification label: BS unit.......................................... 14
11.3
About the operation range......................................................... 14
11.4
System layout............................................................................ 14
12.1
Installation space requirements................................................. 14
12.2
System layout requirements...................................................... 14
12.3
To determine the required safety measures.............................. 14
12.4
Safety measures ....................................................................... 16
12.4.1
No safety measure...................................................... 16
12.4.2
External alarm............................................................. 16
12.4.3
Ventilated enclosure ................................................... 16
12.5
Combinations of ventilated enclosure configurations ................ 19
12.6
Combinations of safety measures ............................................. 20
13.1
Preparing the installation site .................................................... 20
13.1.1
Installation site requirements of the unit ..................... 20
13.2
Possible configurations ............................................................. 22
13.3
Opening and closing the unit..................................................... 22
13.3.1
About opening the unit ................................................ 22
13.3.2
To open the unit .......................................................... 22
13.3.3
To close the unit.......................................................... 23
13.4
Mounting the unit....................................................................... 23
13.4.1
To mount the unit ........................................................ 23
13.4.2
To connect the drain piping......................................... 24
13.4.3
To install the drain piping ............................................ 24
BS4~12A14AJV1B
VRV 5 branch selector unit
4P670163-1 - 2022.02
13.5
Installing the ventilation ducting ................................................. 24
13.5.1
To install the ducting (field supply)............................... 24
13.5.2
To install the duct closing plate.................................... 25
13.5.3
To switch the air in- and outlet side ............................. 25
5
6
14.1
Installation limitations ................................................................. 28
14.2
Preparing refrigerant piping........................................................ 29
7
14.2.1
Refrigerant piping requirements................................... 29
14.2.2
Refrigerant piping material........................................... 29
8
14.2.3
Refrigerant piping insulation ........................................ 29
14.3
Connecting the refrigerant piping ............................................... 29
8
14.3.1
To connect the refrigerant piping ................................. 29
14.3.2
To braze the pipe end .................................................. 31
8
9
10
15.1
Specifications of standard wiring components ........................... 31
15.2
To connect the electrical wiring .................................................. 32
15.3
To finish the electrical wiring ...................................................... 33
11
15.4
To set the DIP switches.............................................................. 33
15.5
To connect the external outputs ................................................. 34
11
16.1
Making field settings................................................................... 34
16.1.1
About making field settings .......................................... 34
16.1.2
To access the field setting components....................... 35
16.1.3
Field setting components ............................................. 35
12
16.1.4
To access mode 1 or 2 ................................................ 35
16.1.5
To use mode 1 ............................................................. 35
16.1.6
To use mode 2 ............................................................. 36
12
16.1.7
Mode 1: Monitoring settings......................................... 36
16.1.8
Mode 2: Field settings.................................................. 36
12
17.1
BS unit test run........................................................................... 38
13
17.1.1
About the BS unit test run ............................................ 38
17.1.2
About airflow requirements .......................................... 39
13
17.1.3
About measuring the airflow rate ................................. 39
17.1.4
Prerequisite checklist ................................................... 39
17.1.5
To perform a BS unit test run....................................... 40
13
17.1.6
Troubleshooting during BS unit test run....................... 40
17.2
System test run .......................................................................... 40
17.2.1
Checklist before commissioning .................................. 40
17.2.2
About the system test run ............................................ 40
14
19.1
Overview: Troubleshooting......................................................... 41
19.2
Precautions when troubleshooting ............................................. 41
19.3
Solving problems based on error codes..................................... 41
19.3.1
Error codes: Overview ................................................. 41
21.1
Wiring diagram ........................................................................... 41
20
1
About this document
Target audience
Authorised installers + end users
INFORMATION
This appliance is intended to be used by expert or trained
users in shops, in light industry and on farms, or for
commercial use by lay persons.
Table of contents
28
31
34
38
40
41
41
41
43
Installation and operation manual
5
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Table of Contents
Troubleshooting
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