17 | Electrical installation
Installer and user reference guide
75
EKVDX32~100A2VEB
VRV system air conditioner
4P664010-1 – 2021.08
WARNING
In case of R32 refrigerant, terminal connections T1/T2 are for fire alarm input ONLY.
Fire alarm has a higher priority than R32 safety and shuts the entire system down.
a Fire alarm input signal (potential free contact)
NOTICE
The user interface has to be in fully functional mode or in alarm only mode.
For more information about T1/T2 functionality, see "19.3 About external input
switching (T1/T2)"[479].
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