Liebert UPS System - Manual (Page 111)

Chapter 9 Optional Parts
105
a. Unpack the battery, measure the battery voltage, charge the battery before
installation if the single battery cell voltage is lower than 2.13V(each battery has
6 cells, 12.8Vdc);
b. Open the front door, remove the back door and cover, switch off all the battery
switches, clear the battery cabinet and take out the accessories(battery
connection cables, cable sleeves and nylon fastener)inside the cabinet;
c. Install the 6 batteries at the bottom floor of the battery cabinet;
d. Connect the battery connection cables D(4 cables), cable E(1 cable) that
connects output switch and inductor, cable C (1 cable) that connects the
inductor and the first battery(front view) in right side. Connect the cable B(1
cable)between different floors and bound one end of the cable with insulation
tape，the other end of the cable should be connected to negative pole of the
battery at the rear part of the floor;
e. When selecting the temperature compensation function, fix the temperature
sensor TMP12Z(one of the accessories of battery cabinet) on the board where
the battery circuit breaker is installed, bound the signal cables and lead the
cables to the place where the wiring is convenient;
f. Place the 8 batteries on the second floor, connect the connection cables D (7
cables) between the batteries. The connection cables of the first floor will be
connected to the positive pole of the first battery in the left side of second floor.
One end of the connection cable B(1 cable) is bound with insulation tape, the
other end is connected to the negative pole of the battery in the left rear part;
g. The wiring and layout of batteries in third and fourth floors are the same with
that in second floor;
h. After connecting and installing the batteries in third and fourth floors, connect
one end of the cable A (1 cable) to output switch, and another end to the
negative pole of the battery in left rear part;
i. Install the cover board, front and back doors.
j. Connect the cables between the UPS and battery switch and the temperature
detection cables that should be shielded cables and should be bound together
with power source cables.
k. There are two kinds of installation methods if the UPS needs to be equipped
with large capacity batteries ： The first one is to connect multi strings of
batteries of same capacity (lower than 100Ah) in parallel, and use the above
methods to install the batteries. The output cables of each battery cabinet are
connected to the battery terminals of UPS. The method is used if the required
backup time is shorter than 2 hours；The second method is to select high
capacity 2V battery. The battery cabinet and connection copper bars are