Eaton 9390 - Page 33

Eaton® 9390 (100–160 kVA) UPS Installation and Operation Manual 164201604—Rev F 18
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To install the battery cabinet, refer to the Eaton 9390 Integrated Battery Cabinet (Models IBC-S and IBC-L)
Installation Manual. After the battery cabinet is installed, return to
4.7 Installing UPS External and Battery Power Wiring to wire the UPS and battery cabinet.
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To install and wire an Integrated Distribution Cabinet (IDC), refer to the Eaton 9390 Integrated Distribution
Cabinet (160 kVA) Installation and Operation Manual. After the IDC is installed and wired, return to
4.7 Installing UPS External and Battery Power Wiring to complete the UPS cabinet wiring.
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To install and wire an Integrated Accessory Cabinet (IAC), refer to the Eaton 9390 Integrated Accessory Cabinet
(IAC-B and IAC-T Configurations) Installation and Operation Manual or the Eaton 9390 Integrated Accessory
Cabinet (IAC-D Configuration) Installation and Operation Manual. After the IAC is installed and wired, return to
4.7 Installing UPS External and Battery Power Wiring to complete the UPS cabinet wiring.
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To wire an UPS Sidecar, refer to the Eaton 9390 UPS Sidecar Installation and Operation Manual. After the UPS
Sidecar is wired, return to 4.7 Installing UPS External and Battery Power Wiring to complete the UPS cabinet
wiring.
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NNOOTTEE 11 The UPS cabinet is shipped with a debris shield covering the ventilation grill on top of
the unit. Do not remove the debris shield until installation is complete. However,
remove the shield before operating the UPS. Once the debris shield is removed, do not
place objects on the ventilation grill.
NNOOTTEE 22 Remove the UPS cabinet top or bottom conduit landing plate to drill or punch conduit
holes (see Figure 84).
NNOOTTEE 33 If the load requires a neutral, a bypass source neutral must be provided. If the load does
not require a neutral and there is no neutral conductor connected at the bypass input, a
neutral to ground bonding jumper must be installed. DO NOT install both a source
neutral and a bonding jumper. See Tables E through G or see Tables O through Q of
Figure 83 for neutral bonding jumper wire sizes. Bonding jumper must be copper wire.
HIGH IMPEDANCE GROUND SOURCES - If the supply source is a high impedance ground (IT) type, the input
neutral conductor must be connected from the source of supply. If there is no output neutral connected to the
UPS, the neutral–forming transformer kit (PN 103005400) may be used instead of pulling a neutral from the
source. If the load requires a neutral, then an input neutral conductor must be pulled into the UPS. IInn nnoo
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DELTA SOURCES (TN–S) - The 9390 UPS system can be operated only from a delta supply source that is fully
floating and if the neutral–forming transformer kit (PN 103005400) is installed in the UPS. The UPS cannot be
operated from a mid–point or end–point grounded delta supply source. With this type of supply source, there is
no capability to provide an output neutral. In no circumstances shall a neutral to ground bonding jumper be
installed in the UPS.
Installing the UPS System
For Internal Use Only