2 Specific installer safety instructions
Installation and operation manual
10
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600329-1A – 2020.01
Piping requirements
Piping must be installed according to instructions given in
25]. Only mechanical joints (e.g. braze+flare
connections) that are compliant with the latest version of ISO14903
can be used.
For piping installed in the occupied space, please make sure that the
piping is protected against accidental damage. Piping should be
checked according to procedure as mentioned in
Remote controller requirements
b
a
c
d
f
h
e
d
c
b
b
c
d
g
h
h
a
Heat pump outdoor unit
b
Refrigerant piping
c
VRV direct expansion (DX) indoor unit
d
Remote controller in normal mode
e
Remote controller in alarm only mode
f
Remote controller in supervisor mode (mandatory in
some situations)
g
iTM (optional)
h
Option PCB (optional)
For installation of the remote controller, please refer to the
installation and operation manual delivered with the remote
controller. Each indoor unit has to 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 has to be connected to a separate remote
controller.
3
Even if multiple indoors are in the same room, they should all
have a separate remote controller.
4
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.
5
Group control is not allowed.
6
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 or to the optional output PCB of the
indoor unit of that specific room.
For more information on the SVS output signal, see
connect the electrical wiring to the outdoor unit"
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 should
be set on both remote controller and outdoor
unit.
Note:
Incorrect use of remote controllers can result in occurrence of
error codes, non-operating system or system that is not compliant to
applicable legislation.
Note:
iTM in combination with a WAGO module can also be used as
supervisor remote controller. For further details on installation,
please refer to installation manual of the iTM.
Examples
NOT OK
OK
Case
1
a
c
b
a
d
b
Remote controller is not R32 safety
system compatible
