Battery Installation 13
6.2 Matching BatteryCabinets
Two sizes of optional battery cabinets are available. Refer to Figure 16 to Figure 18. The battery
cabinetcells range from 90 to 150 Ampere-hours. The samemodel battery cabinet may be paral-
leled in multiple cabinet strings for additional capac ity. Battery capacity (in minutes) at your
installation will depend on cabinet model, nu mber of cabinets, and amount of critical load on the
UPS.
1. Handling. The Battery Cabinet weighs 3000 to 4900 pounds. Forklift slots are provid ed for
easy handling.
2. CabinetInspection. Remove all panels and vis ually inspect the batteries, bus connections,
and cabinet for any damage. Exercise caution; voltage is present within the Battery
Cabineteven before installation.If there are signs of damage, do not proceed. Call L iebert
Global Services at 1-800-543-2378.
3. Battery Storage. The batteries used in the Battery Cabinet have an excelle nt charge
retaining characteristic. The batte ries can be stored for up to six months without any
appreciable deterioration.Self-discharge rate of the batteries is approximately 3% per month
when the batteries are stored in temperatures of 15°C to 25°C (59°F to 77°F). If th e Battery
Cabinet is planned to be storedfor longer than six months, contact Liebert Customer Service
for recommended action.
4. Installation. The Battery Cabinet(s) can be located conveniently next to each UPS module.
The front-access-only-design eliminat es side and rear service clearance requirements.
•Environment. Locate the Batte ry Cabinet in a clean, dry environment. Recommended
temperature range for optimum performance and l ifetime is 20°C (68°F) to 25°C (77°F).
•Service Clearance. Allow f ront access to the Battery Cabinet at all times for mainte-
nance and servicing. Electrical code s require that the Battery Cabinet b e installed with no
less than 3 feet (1 meter) of clearance at the front of the cabinet when operating. Side and
rear panels do not require service clea rance.
•Side Panels. Remove protectiveside panels to connect cabinets together. Panels are
retained at the bottom with three screws.
•Shield Plate.IftheBatteryCabinetsareboltedtothesideoftheUPSmodule,theshield
plate inside the Battery Cabinet should be on the side toward the UPS mod ule for proper
UPS airflow. Move the shield if requir ed by your Battery Cabinet location.
•Cables. Cables may be run between the cabinets throu gh cutouts in the top of the cabi-
net, eliminating the need for external conduit runs. Route cables before moving cab i-
nets into final position for bolting tog ether. Removetop pan els fora ccess,if
required. No top or bottom entryc ablesare required, except for remotely located cabinets
which require conduits. Refer to Figure 16 through Figure 18.
•Built-In Cabinets. Matching Battery Cabinets are designed as a bolt-on section t oth e
side of the UPS module cabinet. Use bo lts (3/8"-16 x 1-1/4") to connect cabinet frames at
posts, two places front and two place s rear. Brackets are provided t o make rear connec-
tions easier from inside the cabinet.
6.3 Non-Standard Batteries
When batteries other than a matchingBattery Cabinet are used (not recommended), a remote
batterydisconnect switch with overcurrentprotection is requiredper the National Electrical
Code. Refer to Figure 53 and Figure 54. Contact your Liebert sales representative regard ing
this option.
1. Install battery racks/cabinets and batteries per man ufacturer’s installation and maintenance
instructions.
2. Verify battery area has adequate ventilation and battery operating temper ature complies
with manufacturer’sspecification.
If you have any questions concerning batteries, battery racks, or accesso ries, contact Liebert Glo-
bal Services at 1-800-543-2378.