Battery Cabinet Installation - Eaton Ferrups FX User Manual

5 5 . . 2 2 B B a a t t t t e e r r y y C C a a b b i i n n e e t t I I n n s s t t a a l l l l a a t t i i o o n n
Installing and Connecting the Batteries
1. Use the battery installation diagram that came with the UPS batteries and cabinet as you follow the steps
below.
2. Place the external battery cabinet or rack as close as possible to the Eaton Ferrups FX UPS. If the batteries
will be further from the unit than the standard cables allow, contact your service representative or your
local distributor for assistance.
The external battery cabinet should be well ventilated and away from direct sunlight or other heat source.
Ensure that the floor is level and can support the weight of the batteries, the cabinet or rack, and any other
necessary equipment. Your Eaton sales coordinator can tell you the size and weight of external batteries.
The temperature should be below 77 F (25 C) for the best battery performance. Batteries will be less
efficient at temperatures below 65° (18°). High temperatures will reduce battery life. Typicially at about 95°
F (35°) battery life will be half of what it would be at a normal temperature of 77° (25°C). At about 113 °
(45°C), battery life will be one-fourth of normal.
The batteries should be as close as possible to the UPS to reduce DC wiring costs and improve battery
performance.
NOTE
3. Wherever conductors may be exposed to physical damage, you must protect the conductors in
accordance with National Electrical Code ANSI/NFPA 70-2020. This includes battery cables between the
UPS and the external battery cabinet and cables between external battery cabinets (if you have more than
one).
We suggest routing battery cables through flexible conduit. For models with a removable DC plug at the
UPS end of the cables, we suggest routing the cables through the conduit to within about 12" (30.5 cm) of
the UPS because the connector or plug does not connect to flexible conduit. Install flexible conduit for
battery cables according to local or national code.
4. The external battery cabinet chassis ground (or earth) must be connected to the UPS chassis ground (or
earth).
You must make a good connection to the external battery cabinet chassis ground (or earth). If the external
battery cabinet has a terminal strip, you can make the ground connection at the terminal strip ground (or
earth) lug inside the cabinet. If not, you can make the ground connection at one of the screws on the
external battery cabinet; to ensure a good connection, remove the paint under the cabinet screw.
At the UPS, the procedure for connecting ground depends on your model.
FX 3.1kVA: At the UPS, connect the ground wire to the ground lug (located next to the EBM connector).
This UPS ground (or earth) screw is marked with a ground symbol.
5. Arrange the batteries in the cabinet or rack. If optional straps are included, install the straps as shown in
the battery installation diagram that came with the batteries.
Arrange the batteries so there is as much air flow as possible around the batteries and so the batteries can
be cooled as much as possible.
Some external battery cabinets have cooling slots cut in the shelves to increase air flow. Arrange the
batteries so these slots are not blocked. Some larger batteries must sit with the longest battery dimension
in the same direction as the longest shelf dimension. These batteries will partly block the cooling slots.
However, if you place the batteries next to the outside edge of the shelf to leave as much space between
the batteries as possible, there will be plenty of air flow for cooling.
If you are installing the batteries in a place where there may be seismic activity, you
should anchor the UPS and external battery cabinets to the floor.
Eaton Ferrups FX UPS P-164000906 Eaton Ferrups FX User's Guide P-164000906—Rev 05

Battery Cabinet Installation

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