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About the units and options
Installer and user reference guide
48
FXHA32~100AVEB
VRV system air conditioner
4P673749-1 – 2022.01
b
Outdoor unit
c
User interface
d
Suction air
e
Discharge air
f
Refrigerant transmission cable
g
Drain pipe
h
Suction grille and air filter
15.4 Combining units and options
INFORMATION
Certain options may NOT be available in your country.
15.4.1 Possible options for the indoor unit
Make sure you have the following mandatory options:
▪
User interface: Only a safety system compatible user interface can be used. See
the technical data sheet for user interface compatibility (e.g. BRC1H52*)
Note:
The user interface will generate a visible and audible warning in case of
refrigerant leakage detection. E.g., BRC1H52* user interfaces can generate an
alarm of 65 dB (sound pressure, measured at a distance of 1 m from the alarm).
Sound data is available in the technical data sheet of the user interface. The alarm
should always be 15 dB louder than the background noise of the room. In case of
higher background noise we recommend connecting an external alarm (field
supply) to the optional output PCB of the indoor unit. This field supplied alarm
must be mounted in every room where an indoor unit is installed.
CAUTION
▪
Each indoor unit has to be connected to a separate user interface. Only a safety
system compatible remote controller can be used as the user interface. See
technical data sheet for remote controller compatibility (e.g. BRC1H52/82*).
▪
The user interface has to be put in the same room as the indoor unit. For details,
please refer to the installation and operation manual of the user interface.
▪
Optional output PCB (to provide output for external device): The PCB will trigger
the external alarm in case of leak detection, sensor failure or when the sensor is
disconnected. For the exact model name, see the option list of the indoor unit.
For more information about this option, refer to the installation manual of the
optional output PCB.
▪
An additional Installation box for the optional output PCB is required; see the
option list of the indoor unit. For installation of the installation box, refer to the
manual of the installation box. The wiring between the main PCB and the
optional output PCB must be led together with the transmission cable; never use
the same route as for the power supply cable. See
"18.2 To connect the electrical
69].
INFORMATION
All possible options are mentioned in the option list of the indoor unit. For more
information about an option, refer to the installation and operation manual of the
option.