Daikin SV1A25AJV1B - Safety Measures; No Safety Measure; External Alarm

13 | Special requirements for R32 units
Installer and user reference guide
49
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
13.4 Safety measures
13.4.1 No safety measure
When the room area is sufficiently large, no safety measures are required. This also
includes a SV unit installed in the lowest underground floor.
The duct connection must be replaced with the duct closing plate accessory (see
"14.5.2To install the duct closing plate"[473]).
Field settings
No safety measure
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.
Note: For more information, see "17.1Making field settings"[4100].
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.
13.4.2 External alarm
Do NOT use the external alarm safety measure in case the SV unit is installed in an
occupied space where people are restricted in their movement.
For the external alarm safety measure, the duct connection must be replaced with
the duct closing plate accessory (see "14.5.2 To install the duct closing
plate"[473]).
An external alarm circuit (field supply) must be connected to the SVS output of the
SV unit, see "16.5To connect the external outputs"[498].
This alarm system must warn audibly AND visibly (e.g. a loud buzzer AND a flashing
light). The audible alarm must be 15dBA above the background sound level at all
times.
At least one alarm must be installed in the occupied space in which the SV unit is
installed.
For the occupancy listed below, the alarm system must additionally warn at a
supervised location with 24-hour monitoring:
- with sleeping facilities.
- where an uncontrolled number of people are present.
- accessible for persons not familiar with the necessary safety precautions.
To warn at a supervised location, connect a supervisor remote controller to the
system. This supervisor remote controller can be connected to any indoor unit of
the system, and will warn at the supervised location in case a refrigerant leak is
detected in any SV unit of the system. Note: An address number for the supervisor
remote controller must be assigned to the SV unit. See "17.1 Making field
settings"[4100].