User's Manual

Cabinet Mounting
– continued
DRAFT
SC
TM
4812ET RF and Power Cabinet Hardware Installation Manual
Apr 2001
V04.03
78
Table 4-8: Power Cabinet Battery Cabling
Step Action
3 Attach the battery terminal strap from the positive (+) terminal on
battery “A” (see Figure 4-6) to the negative (–) terminal on battery
“B” using the fastening hardware supplied with the batteries. Torque
to the recommended value (per battery manufacturer; if using Johnson
Controls batteries, torque is 12.4 N–m (110 in–lbs)).
4 Secure the black cable supplied (attached to the black “Return Buss”
on the left side of the battery compartment) to the negative (–)
terminal on battery “A” with the fastening hardware supplied with the
batteries. Torque to the recommended value shown on the battery (per
battery manufacturer; if using Johnson Controls batteries, torque to
12.4 N–m (110 in–lbs)).
5 Secure the red cable installed (attached to the red “+ 27V Buss” on the
right side of the battery compartment) to the positive (+) terminal on
battery “B” with the fastening hardware supplied with the batteries.
Torque to the recommended value shown on the battery (per battery
manufacturer; if using Johnson Controls batteries, torque to 124 N–m
(110 in–lbs).
Figure 4-6: Power Cabinet with Batteries Installed (Doors Removed for Clarity)
View of a String
of Batteries
Battery
Mounting
Bracket
Low Voltage
Disconnect
GFCI
Circuit
DC Circuit
Breakers
AC Load
Center
A
B
Rectifier Alarm
Module
(Battery Heaters
located under
batteries)
Batteries
Temperature
Control Module
Recifier Shelfs
3
12
4
65
78
9
10
11 12
Battery ”Position
Number”
Installed Battery
Terminal Strap
Battery
ÎÎÎÎÎÎ
ÎÎÎÎÎÎ
ÎÎÎÎÎÎ
Buss Bar Cable Lug
or Terminal Strap
Bolt and Washer
(Supplied with Battery)
Cross–Section of Typical Battery
Terminal Connection
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