Daikin SV1A25AJV1B - Page 40

16 Configuration
Installation and operation manual
40
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P709466-1 – 2023.09
▪ Choose value "1" if safety measures are required (ventilated
enclosure or external alarm).
▪ Choose value "0" if no safety measures are required.
See "12.3To determine the required safety measures"[414].
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".
The same setting is required for all SV units, even if no safety
measures are installed. The test run of the outdoor unit checks if all
SV units of the system have "1" as a value for this setting. If not, the
7-segment display of the outdoor unit shows an error.
[2-6]
(a)
Commissioning check
0 (default) Incomplete
1 Completed
(a)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
[2-7]
Setting to enable or disable the ventilated enclosure safety measure
of the SV unit.
▪ Choose value "1" if the ventilated enclosure is a necessary safety
measure.
▪ Choose value "0" if only an external alarm is required.
See "12.3To determine the required safety measures"[414].
[2-7]
(a)
Ventilated enclosure
0 Disable
1 (default) Enable
(a)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
[2-8]
Setting to assign an address value to the SV unit for the supervisor
remote controller.
In case supervisor remote controllers are used in the system, it is
necessary to assign an address value to the SV unit.
▪ Assign a different address to different SV units.
▪ Use address values that are NOT used in the system elsewhere
(e.g. indoor units).
▪ Do not use address 00. The supervisor remote controller does not
display errors from SV units with address 00.
[2-8]
(a)
Description
00~FF (address in
HEX format)
Address for supervisor remote controller
(a)
Set ONLY on the LEFTMOST main PCB (A1P) of the SV unit.
Example
a
A2PA1P
e e
A2PA1P
e eb c
A1P
e
d
A1P Main PCB 1
A2P Main PCB 2
a Outdoor unit
b SV6A unit
c SV4A unit
d SV8A unit
e Address value for supervisor remote controller assigned
to main PCB
Interconnection wiring
The table below shows an example of address values assigned:
SV Main PCB Address value (e)
SV8A A1P 01
A2P -
SV6A A1P 02
A2P -
SV4A A1P 03
[2-9]
Setting to assign an address value to the SV unit for error handling.
Assign the same address to the main PCBs (A1P and A2P) of 1 SV
unit, and another address to the other SV units.
NOTICE
Field setting [2-9] is mandatory for all SV units and has to
be made on all main PCBs (A1P and A2P) of the SV unit.
[2-9]
(a)
Description
0 (default)~63 Address for error handling
(a)
Set on ALL main PCBs (A1P and A2P) of the SV unit.
Example
a
A2PA1P
e e
A2PA1P
e eb c
A1P
e
d
A1P Main PCB 1
A2P Main PCB 2
a Outdoor unit
b SV6A unit
c SV4A unit
d SV8A unit
e Address value for supervisor remote controller assigned
to main PCB
Interconnection wiring
The table below shows an example of address values assigned:
SV Main PCB Address value (e)
SV8A A1P 1
A2P
SV6A A1P 2
A2P
SV4A A1P 3