Installation

4.2.5AC Auxiliary Control Power Supply Connections

The AC auxiliary power supply connections to the Liebert FS are made through the auxiliary power fused disconnect on the mounting plate above the inductor-capacitor module and to the right of the optional VIB and DCM modules (see Figure 30). See Appendix F.0 - Auxiliary Backup AC Power Supply for details on the purpose of the auxiliary AC power supply.

Figure 30 Service panel location

Service Panel (cover removed); Provides access to fused disconnect and the optional VIB and DCM.

The Auxiliary Power Fused Disconnect (see Figure 31) accommodates the connection of an AC wire (Line, Neutral, Ground) and is rated for 110/230 VAC - 50/60 Hz. Open the circuit while wiring, check the fuses and then close it. The AC wire must be connected to the auxiliary power fused disconnect from the top to a dedicated AC circuit rated for 400VA with branch circuit protection. This AC outlet must be connected to a protected low-voltage (110VAC-230VAC, 400VA) source. A qualified electrical contractor should make this connection permanent.

The AC wire is field-supplied. It must conform to all applicable local, regional, national regulations, such as the National Electric Code for USA. An 18 AWG (0.82 mm2) cable is recommended for this connection.

Tighten the connections for the 18 AWG cable (0.82 mm2) to 15 inch-pounds (1.6N-m).

Figure 31 Auxiliary backup power connections

AC Auxiliary

Power Fused

Disconnect

Location of MCM (cover plate removed)

! CAUTION

The AC power supply must remain connected at all times. Precautions must be taken to ensure that the connection is not broken. Disconnection may cause damage to the equipment.

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Emerson Series 600, SERIES 600T user manual AC Auxiliary Control Power Supply Connections, Service panel location
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Series 600, SERIES 600T specifications

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