Electrical Connections

7.0ELECTRICAL CONNECTIONS

Power is supplied to the XDF through two factory-connected power cords (120V and 208V). For more information, refer to 4.5.1 - Voltage Input Requirements

Additional electrical connections required for operation depend on the equipment installed in the XDF and remote communications desired.

The XDF has slots for two communication cards, such as Liebert’s Intellislot card, and two alarm/warning hardwire connections. These connections are at the top left corner of the self-con- tained, air cooled XDF, inside the area housing the condenser coil (see Figure 21). For details, see

10.1- Environmental Control. Water cooled XDF units have the connections on the top of the unit, near the middle of the compartment (see Figure 22).

Alarm and warning contacts may be connected to monitoring equipment, such as Liebert’s Universal Monitor and SiteLink equipment, as well as to building management systems. Consult the monitor- ing equipment’s user manual for details.

Figure 21 Customer electrical connections and cable entry points—self-contained, air cooled units

Ambient

Temperature/Humidity

Sensor

Communication Card Slots (cards provided when option is selected)

Customer Connections:

75 & 76 Customer Alarm Contacts

94 & 95 Customer Warning Contacts

37 & 38 Remote Shutdown Contacts (all contacts rated 1A, 24VAC maximum)

Detail Area

Customer

Cable Entry

Points

Service

Gauge

Access

Three-Phase Power

Cord Entrance

LEFT SIDE of XDF

Single-Phase Power

Move plate to back panel

Cord Entrance

for alternate power cable routing

 

REAR of XDF

Dashed line delineates equipment compartment

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Emerson XDF user manual Electrical Connections, Customer Cable Entry Points, Dashed line delineates equipment compartment