C&D Technologies 41-7525 VRLA Batteries (rack mounted systems) - Manual (Page 5)

Required Installation Tools
& Equipment
At a minimum, the following tools and
equipment are required to install the 12V
VRLA battery.
1. Digital voltmeter.
2. Socket wrench, insulated.
3. Torque wrench calibrated in inch-pounds,
insulated.
4. Box end wrench, insulated.
5. Battery lifting equipment (handles) and fork
lift to lift pallets of batteries.
6. Rubber gloves.
7. Full face shield.
8. Plastic apron.
9. Portable eyewash.
10. Spill kit.
11. Fire extinguisher (class C).
The following equipment is optional depending
on the type of checkout to be performed.
1. Micro-ohm meter.
2. Battery resistance, impedance or
conductance test set.
3. 100 amp momentary load test set.
4. System load bank (DC if to be performed at
the battery and AC if to be performed by
loading a UPS output).
Preparation for System Installation
The installation of the battery system involves a
series of activities from planning and initial
receipt through final checkout and warranty
registration. The sequence of these tasks are
presented in Figure 3 and should be thoroughly
studied and understood before proceeding.
As part of this preparation activity the installer
should develop a system schematic diagram
which identifies how the individual batteries are
to be placed on the rack, interconnected and
numbered. Figure 4 is a schematic for a typical
system of 30 each 12 volt batteries on a single
3 tier rack while Figure 5 is a schematic for a
typical string of 40 each 12 volt batteries on two
each 3 tier racks. The cabling received with
the system presumes a specific rack and
installation configuration.
Obviously the racks must be assembled and
installed prior to installation of the batteries.
Instructions for the rack assembly are contained
in a separate document received with the racks.
The batteries are rated at 77°F (25°C). Operation
at cooler temperatures will decrease the discharging
time. Operation at elevated temperatures will decrease
the overall life of the battery. There is a 50% life
reduction for each 15°F above 77°F.
Receiving Instructions
Upon receipt the shipment should be thoroughly
inspected for any physical damage to the packaging
and to assure the proper quantities of items are
received. The packages should then be opened
and the batteries inspected to assure there is no
hidden damage. Special attention should be given
to the containers and terminals of the received
batteries.
Refer to the bill of material and determine that the
items received are complete and as described on
the bill of material.
If any damage is noted, or the number of packages is
different from the shipping papers, the carrier
should be contacted and a claim should be filed
with the carrier within 10 days.
The content of the shipment should be inspected
and counted to assure the proper instructions,
drawings and number of batteries, hardware kits,
cables and accessories as identified on the bill of
material are received. Should the count be incorrect
or the components be of the wrong type, contact
C&D Technologies Customer Service as soon as
possible.
The batteries are shipped fully charged, however
some self-discharge will occur during transit and
the degree is a function of the transit time and
temperature. The fully charged open circuit voltage is
2.12 to 2.16 volts per cell (6.36 to 6.48 and 12.72
to 12.96 VDC for 6 and 12 volt batteries respectively).
Upon receipt the batteries should be a minimum of
2.07 volts per cell or 6.2 and 12.4 volts for 6 and
12 volt batteries respectively. If at these minimum
voltages the batteries should be recharged as
soon as possible. If at or below 2 volts per cell
(6 and 12 volts) the batteries should not be used
and the vendor should be contacted immediately.
41-7525/0514/CD 5 www.cdtechno.com