Emerson NetSure 721NPBB User Instructions page 51

NetSure ™ -48V DC Power System
User Instructions, UM582127000 (Issue AD, January 20, 2014)
6. Locate the in-line FA/CBA connector located near the
back of the panel, and separate the connector halves.
7. Refer to Figure 28 and remove the hardware securing the
panel's Ground Busbar (if equipped) to the distribution
cabinet's busbar.
8. For load distribution panels, refer to
remove the hardware securing the panel's System Load
Distribution busbar to the distribution cabinet's busbar.
9. For battery distribution panels, refer to
remove the hardware securing the panel's Battery Busbar
to the distribution cabinet's busbar.
10. For dual voltage load distribution panels, refer to
28 and remove the hardware securing the +24V jumper
leads.
11. Refer to Figure 28 and remove the hardware securing the
distribution panel to the distribution cabinet. Remove
the panel from the distribution cabinet.
Installing the Distribution Panel
Note:
In the following procedure, before making busbar-to-busbar
connections, apply a thin coating of electrical anti-oxidizing
compound to the mating surfaces of the busbars.
1. Orient the replacement distribution panel into
distribution cabinet, checking to ensure no wires are
pinched. Replace the hardware securing the distribution
panel to the distribution cabinet (10-32 x 5/8" bolt, #10
flat washer, 4-places).
2. For dual voltage load distribution panels, replace the
hardware securing the +24V jumper leads (1/4-20 bolt,
1/4" lock washer, 1/4" flat washer. Torque to 84 in-lbs).
3. For battery distribution panels, replace the hardware
securing the panel's Battery Busbar to the distribution
cabinet's busbar (3/8-16 x 1-1/4" bolt, 3/8" Belleville lock
Spec. No: 582127000
Model No: 721
NPBB
Figure 28 and
Figure 28 and
Figure
Warning
[43]
washer, 3/8" hardened flat washer, 2-places. Torque to
180 in-lbs.)
4. For load distribution panels, replace the hardware
securing the panel's System Load Distribution busbar to
the distribution cabinet's busbar (1/4-20 x 1" bolt, 1/4"
Belleville lock washer, 1/4" Belleville lock washer
(concave side of Belleville lock washers face each other),
1/4" hardened flat washer, 2-places. Torque to 60 in-lbs).
5. Replace the hardware securing the panel's Ground
Busbar (if equipped) to the distribution cabinet's busbar
(1/4-20 x 1" bolt, 1/4" Belleville lock washer, 1/4"
Belleville lock washer (concave side of Belleville lock
washers face each other), 1/4" hardened flat washer, 2-
places. Torque to 60 in-lbs).
6. Locate the in-line FA/CBA connector located near the
back of the panel, and plug it into the mating connector
half in the distribution cabinet.
7. On panels equipped with shunts, reconnect the shunt
leads.
Warning! In the next step, observe correct polarity;
otherwise equipment damage will result.
8. On panels equipped with a ground busbar, reconnect the
load return or battery return wiring to the ground busbar.
9. Reconnect the load or battery wiring to the circuit
breaker or fuse positions.
10. Transfer the plug-in circuit breakers or fuses from the old
panel to the replacement panel.
11. Replace the plastic shield covering the circuit breakers or
fuseholders on the replacement panel.
12. Verify no Circuit Breaker/Fuse Alarms are active.
13. Close the distribution cabinet's front door. Turn the latch
clockwise to secure the door.
Code: UM582127000
Issue AD, January 20, 2014