UPS SYSTEM INSTALLATION
Eaton 9395 UPS (450–825 kVA) Installation and Operation Manual
S
164201725 Rev 4
www.eaton.com/powerquality
4-23
4.5
Field Installed UPM Installation
If installing a Plus 1 model or adding the FI-UPM to an 825/550 model, install the
FI-UPM using the instructions in the
Eaton 9395 Field Installed UPM Mechanical
Installation Manual
, listed in paragraph 1.8 on page 1-10. After the FI-UPM is installed,
proceed to paragraph 4.6 if installing a battery system; otherwise, proceed to
paragraph 4.7.
4.6
Battery System Installation
If installing a battery system, install the customer-supplied battery system according
to the battery and battery system manufacturer's instructions and all applicable codes
and regulations, including the NEC, Article 480. After the battery system is installed,
proceed to paragraph 4.7 if installing a distributed bypass tie cabinet; otherwise,
proceed to paragraph 4.8.
4.7
Distributed Bypass Tie Cabinet Installation
NOTE
The tie cabinet must contain Module Output Breakers (MOBs) with dual auxiliary contacts for control
of the system. Without dual auxiliary MOBs, UPMs are not allowed to go to bypass individually during
servicing. All UPMs will go to bypass instead of the just the UPM needing service, decreasing critical load
protection. With dual auxiliary MOBs, one UPM can be bypassed while the remaining UPMs support the load
as long as the remaining UPMs have the capacity to do so.
If installing a distributed bypass system, install the customer-supplied tie cabinet or
distribution panel according to the tie cabinet or distribution panel manufacturer's
instructions and all applicable codes and regulations, including the NEC, Article 480.
After the tie cabinet is installed, proceed to paragraph 4.8 to complete the wiring of
the UPS.
4.8
Installing UPS External and Battery Power Wiring
NOTE
The ISBM and UPM sections are shipped with debris shields covering the ventilation grills on top of
the sections (see Figure 4‐22). Do not remove the debris shields until installation is complete. However,
remove the shields before operating the UPS. Once the debris shields are removed, do not place objects on
the ventilation grills.
NOTE
Remove the ISBM section top or bottom conduit landing plate to drill or punch conduit holes (see
Figure 4‐23 on page 4-27).
NOTE
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 Table 3‐4 through
Table 3‐7 starting on page 3-14 for neutral bonding jumper wire sizes. Bonding jumper must be copper wire.
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HIGH IMPEDANCE GROUND SOURCES - If the supply source is a high impedance ground (IT) type, the
neutral‐forming transformer kit must be used instead of pulling a neutral from the source. In no
circumstances shall a neutral to ground bonding jumper be installed in the UPS.
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DELTA SOURCES (TN‐S) - 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.
