Alpha Technologies CXPS 48-1.2-225 48 Vdc - Manual (Page 25)

053-691-B1 Rev E Page 17 of 33
4.7 Battery installation
The battery installation procedure in this manual is a guideline only. The batteries are purchased separately from
the power system and have their own manuals.
WARNING Follow battery manufacturer’s safety recommendations when working around battery
systems and review the safety instructions provided in this manual.
4.7.1 Preparation/mounting
Batteries should be located in a temperature-controlled environment. Regulate the temperature to approximately
25°C (77°F). Significantly lower temperatures reduce the battery performance and higher temperatures decrease
life expectancy of the batteries.
Provide adequate ventilation. Although VRLA batteries do not require special ventilation systems like flooded
batteries, they should not be installed in an airtight enclosure. Hydrogen gas may emitted by a failed VRLA
battery.
If applicable, clean the cells according to the battery manufacturer's recommendations. First neutralize any acid
with a baking soda and water solution, and then rinse the cells with clean water.
4.7.2 Installation of batteries
Verify that all battery breakers, DC circuit breakers, and fuses on the distribution panels are either in
the OFF position or removed.
Use a corrosion-inhibiting agent, such as NO-OX-ID, on all battery terminal connections.
1. If applicable, assemble the battery rack and the cells or mono-blocks according the
installation instructions supplied with the batteries.
2. Make sure that the battery output cables are long enough to reach the [+] and [–]
terminals of the series battery string. Check that the batteries are oriented correctly
for easy installation of the inter-unit “series” connectors.
3. Remove any NO-OX-ID grease from battery terminals.
4. Burnish the terminal posts with a non-metallic brush, a polishing pad, or a 3M Scotch
Brite scouring pad.
5. Apply a light coating of NO-OX-ID grease to the terminal posts.
6. If lead plated inter-unit connectors are used, burnish them and apply NO-OX-ID as
above. Install the inter-unit connectors.
7. After all battery connections are completed, torque the bolts according to the battery
specifications, typically 100 in-lbs.
Refer to the system start-up procedure before connecting batteries online.