Overview: Flowchart; Safety Measures; No Safety Measure; Alarm - Daikin VRV 5-S RXYSA8AMY1B Installation And Operation Manual

13.3.1

Overview: flowchart

Determine required safety
measure based on 'All other
floors' of the graph and table.

Alarm +

No safety measure

Natural ventilation
Alarm +
shut-off valve [SV unit]
Note: The flowchart is an overview. Always refer to the full text mentioned in this manual for clear understanding and detailed explanation.
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 an indoor unit installed in the lowest
underground floor.
Therefore the R32 safety system in the indoor unit in a sufficiently
large room can be deactivated (active by default) by changing the
setting in the user interface as shown below:
Field settings
No safety measure
st
Setting 1 code Function
15/25 13 R32 leak safety
system setting
Note: For more information, see
setting" [ 4 43].
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752781-1B – 2024.02
Procedure to check required
countermeasure for indoor unit
Determine total amount of
refrigerant in the system.
Total charge amount [kg]
Determine the smallest area out of:
- the room where an indoor unit is installed,
- each of the rooms served by a ducted indoor
unit installed in a different room
A [m²]
min
NO
Indoor unit installed/
conditioning on
lowest underground floor?
See Step 3 in
above text
+
OR
+
nd
2 code Description
01 Disabled
"18.1.8 Indoor unit field
13 Special requirements for R32 units
See Step 1 in above text
See Step 2 in above text
YES
Determine required safety
measure based on 'Lowest
underground floor' of the graph
and table.
No safety measure Alarm
OR
Natural ventilation
13.4.2 Alarm
R32 safety system compatible remote controllers (e.g. BRC1H52/82*
or later type) used with the indoor units have a built-in alarm as a
safety measure. For installation of the remote controller, please refer
to the installation and operation manual delivered with the remote
controller.
Each indoor unit must be connected with a R32 safety system
compatible remote controller (e.g. BRC1H52/82* or later type).
These remote controllers have implemented safety measures that
will warn the user visually and audibly in case of a leak.
For installation of the remote controller, it is mandatory to follow the
requirements.
1 Only a safety system compatible remote controller can be used.
See technical data sheet for remote controller compatibility (e.g.
BRC1H52/82*).
2 Each indoor unit must be connected to a separate remote
controller. In case indoor units are operating under group
control, it is possible to only use one remote controller per
room.
3 The remote controller put in the room served by the indoor unit
must be in 'fully functional' or 'alarm only' mode. In case the
indoor unit is serving a different room than where it is installed,
See Step 3 in
above text
NOT allowed
Installation and operation manual
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