Liebert GXT3-10000T220 Input and Output Connection Requirements, Jumper removed for clarity

Installation

Figure 6 Dual source input supply—input and output connections

	UPS Input ~		Bypass Input ~				Output ~
BYP	L1	L2	L1	L2	GET	X1	X2	X3	X4

UPS Feed Bypass Feed

120

208

220

120

240

0

Figure 7 Hardwire terminals

Jumper removed for clarity

3.6.1Input and Output Connection Requirements

•Any 120V loads must be distributed evenly between X1-X2, X1-X4 and X4-X2. Do not connect loads between X3-X2 or between X3-X4—these are not standard voltages.

•The single-phase isolation output transformer is a separately derived source. The output Neutral (X2) is bonded to Ground within the UPS cabinet. No other bonding wire is needed.

•Install a Grounding Electrode Terminal (GET) to the nearest grounding electrode in the building grounding electrode system. If the grounding electrode conductor must be protected, non-metallic conduit is recommended. If metal conduit must be used, bond both ends of the conduit to the grounding electrode conductor. Conduit is not an acceptable grounding electrode conductor.

•The utility may be derived from a single-phase or three-phase source. The line-to-ground voltages are dependent on the grounding of the utility and do not affect the output voltages. Do not use a floating AC source.

•With dual input source configuration, both sources are tied together within the UPS cabinet. Two additional ground screw terminals are supplied for use as needed.

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