Daikin SV1A25AJV1B - Combinations of Safety Measures

13 | Special requirements for R32 units
Installer and user reference guide
61
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
SV unit test run
Before SV unit operation, it is required to perform a test run that simulates a
refrigerant leak. See "18.3SV unit test run"[4110] for more details.
13.6 Combinations of safety measures
It is possible to combine SV units with different safety measures (no safety
measures, external alarm, natural ventilation and ventilated enclosure) in the same
system.
Example
a
b
b
f
g
d
c
eh
a Outdoor unit
b SV unit with ventilated enclosure safety measure
c SV unit without safety measures
d SV unit with external alarm safety measure
e SV unit with natural ventilation
f Extraction fan
g External alarm
h Natural ventilation
Interconnection wiring
Field settings
SV units (b) with ventilated enclosure safety measure
Code Description Value
[2-0]
(a)
Cluster indication 1: enable
[2-1]
(a)
Cluster number 1
[2-2]
(a)
Cluster configuration 0 (default): parallel
[2-4]
(b)
Safety measures 1 (default): enable
[2-7]
(b)
Ventilated enclosure 1 (default): enable
(a)
Set on ALL main PCBs (A1P and A2P) of the SV unit.
(b)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
SV units (c) without safety measures
Code Description Value
[2-0]
(a)
Cluster indication 0 (default): disable
[2-4]
(b)
Safety measures 0: disable
(a)
Set on ALL main PCBs (A1P and A2P) of the SV unit.
(b)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
SV units (d) with external alarm safety measure
Code Description Value
[2-0]
(a)
Cluster indication 0 (default): disable
[2-4]
(b)
Safety measures 1 (default): enable
[2-7]
(b)
Ventilated enclosure 0: disable