13 | Special requirements for R32 units
Installer and user reference guide
60
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
13.5 Combinations of ventilated enclosure configurations
It is possible to combine different ventilated enclosure configurations (clusters) in
the same system. To do this, assign a unique cluster value to each cluster. All the
SV units in the same cluster need to be assigned the same cluster number.
Example
a Outdoor unit
b SV unit belonging to cluster1
c SV unit belonging to cluster2
d SV unit belonging to cluster3
e Extraction fan
Interconnection wiring
Field settings of above example
Code Description Value
(a)
[2-0]
(b)
Cluster indication 1: enable
[2-1]
(b)
Cluster number 1 2 3
[2-2]
(b)
Cluster configuration 0 (default): parallel 1: series
[2-4]
(c)
Safety measures 1 (default): enable
[2-7]
(c)
Ventilated enclosure 1 (default): enable
(a)
For clusters 1~3.
(b)
Set on ALL main PCBs (A1P and A2P) of the SV unit.
(c)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
Note: For more information, see "17.1Making field settings"[4100].
Example
It is not allowed to combine parallel and series configurations within the same
cluster.
a SV unit
b Extraction fan
A Parallel configuration
B Series configuration
NOT allowed