Daikin SV1A25AJV1B - Page 105

17 | Configuration
Installer and user reference guide
105
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
(a)
Set on ALL main PCBs (A1P and A2P) of the SV unit.
[2-2]
Setting to define the cluster configuration the SV unit belongs to.
This can be either a parallel or series cluster. This setting must be configured for all
SV units in the same cluster, and has to be the same value. See "13.4.4Ventilated
enclosure"[452].
[2-2]
(a)
Description
0 (default) Parallel cluster
1 Series cluster
(a)
Set on ALL main PCBs (A1P and A2P) of the SV unit.
[2-3]
Setting to simulate a refrigerant leak.
▪ Choose value "1" during commissioning of the SV unit. This activates the safety
measures of the SV unit and confirms that the safety measures are working as
intended and are conform with the applicable legislation.
▪ After confirmation, reset it to value "0" and change setting [2-6] to confirm the
completion of the commissioning check.
See "18.3.1About the SV unit test run"[4110].
[2-3]
(a)
Simulate refrigerant leak
0 (default) OFF
1 ON
(a)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
[2-4]
Setting to enable or disable all SV unit safety measures.
▪ Choose value "1" if safety measures are required (ventilated enclosure or
external alarm).
▪ Choose value "0" if no safety measures are required.
See "13.3To determine the required safety measures"[445].
In case of "0", the output of the R32 sensor in the SV unit will be ignored, and there
is no system response in case of a refrigerant leak in the SV unit.
[2-4]
(a)
Safety measures
0 Disable
1 (default) Enable
2 Temporarily disable (24 hours or until power reset)
(a)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
[2-6]
Setting to confirm the completion of the commissioning check.
After confirmation that the safety measures of the SV unit are working as intended,
this setting must be changed to "1".