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Special requirements for R32 units
Installer and user reference guide
54
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02
Example
a
b
b
e
f
d
c
a
Outdoor unit
b
BS unit with ventilated enclosure safety measure
c
BS unit without safety measures
d
BS unit with external alarm safety measure
e
Extraction fan
f
External alarm
Transmission wiring
Field settings
BS units (b) with ventilated enclosure safety measure
Code
Description
Value
[2-0]
Cluster indication
1: enable
[2-1]
Cluster number
1
[2-2]
Cluster configuration
0 (default): parallel
[2-4]
Safety measures
1 (default): enable
[2-7]
Ventilated enclosure
1 (default): enable
BS units (c) without safety measures
Code
Description
Value
[2-0]
Cluster indication
0 (default): disable
[2-4]
Safety measures
0: disable
BS units (d) with external alarm safety measure
Code
Description
Value
[2-0]
Cluster indication
0 (default): disable
[2-4]
Safety measures
1 (default): enable
[2-7]
Ventilated enclosure
0: disable
Note:
Some field settings need to be made on all main PCBs (A1P, A2P and A3P) of