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Site Preparation
12
2.4.2 Status/Control Connections
Site preparation for Status/Control connections vary according to the type of UPS interconnection kit
provided with your Liebert FS.
Liebert recommends making Status/Control connections on the UPS system side.
For details, refer to 4.2.3 - Status/Control Connections.
2.4.3 Grounding Connections
A grounding wire must be connected from the Liebert FS to the UPS ground terminal. Identify in
advance the location of the grounding terminal on the UPS system. For further details, see 4.2.2 - DC
Power Connections.
2.4.4 AC Power Connections
Plan for the availability of a dedicated 110 or 230VAC, 50 or 60Hz circuit with branch circuit protec-
tion as a source for AC auxiliary power supply to the Liebert FS. This AC power must be rated for
400VA and must be located either on the output circuit of the UPS system or on another UPS-pro-
tected circuit. A qualified electrical contractor should make arrangements for this connection to be
permanent.
The field-supplied AC wire must comply with all applicable local, regional and national regulations
(e.g., National Electric Code for USA). An 18 AWG (0.82mm
2
) cable is recommended for this connec-
tion.
For details, see 4.2.5 - AC Auxiliary Control Power Supply Connections and Appendix F.0 -
Auxiliary Backup AC Power Supply.
2.4.5 Remote Monitoring Connections—Optional
If the optional Data Collection Module (DCM) is provided with your Liebert FS system, plan to have
communication cables (local network connection, phone line) installed to support the remote notifica-
tion and/or monitoring options chosen.
For details, see 4.2.6 - Remote Monitoring Connections—Optional.