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Special requirements for R32 units
Installer and user reference guide
62
REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07
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 has to be connected to a separate remote controller. In case
indoor units are operating under group control, it is possible to only use 1
remote controller per room.
3
The remote controller put in the same room as the indoor unit has to be in
fully functional mode or alarm only mode. For details about the different
remote controller modes and how to set up, please check the note below or
refer to the installation and operation manual delivered with the remote
controller.
4
For buildings where sleeping facilities are offered (e.g. hotel), where persons
are restricted in their movements (e.g. hospitals), an uncontrolled number of
persons is present or buildings where people are not aware of the safety
precautions it is mandatory to install one of the following devices at a location
with 24-hour monitoring:
▪
a supervisor remote controller
▪
or an iTM with external alarm via WAGO module.
Note:
The remote controller will generate a visible and audible warning. E.g. the
BRC1H52/82* remote controllers can generate an alarm of 65 dB (sound pressure,
measured at 1m distance of the alarm). Sound data is available in the technical
data sheet of the remote controller. The alarm should always be 15 dB louder than
the background noise of the room. In case of higher background noise in a certain
room, we recommend to use an external alarm (field supply) in that room. This
alarm can be connected to the SVS output channel of the outdoor unit, BS unit or
the external output PCB of the indoor unit of that specific room. The outdoor SVS
will trigger for any R32 leak detected in the complete system. For BS units and
indoor units, SVS is only triggered when its own R32 sensor detects a leak.
Note:
Depending on configuration, the remote controller is operable in three
possible modes. Each mode offers different controller functionality. For detailed
information about setting the operation mode of the remote controller and its
function, please refer to the installer and user reference guide of the remote
controller.
Mode
Function
Fully functional
The controller is fully functional. All normal
functionality is available.
This controller can be master
or slave.
Alarm only
The controller only acts as leak detection alarm (for a
single indoor unit). No functionality is available. The
remote controller should always be put in the same
room as the indoor unit.
This controller can be master
or slave.
Supervisor
The controller only acts as leak detection alarm (for
the whole system, i.e. multiple indoor units and their
respective controllers). No other functionality is
available. The remote controller should be placed at a
supervised location.
This remote controller can only
be the slave.
Note:
In order to add a supervisor remote controller to
the system, a field setting must be set on remote
controller and outdoor unit. Indoor units and BS units
need to be assigned an address number.
