Vertiv
|
+24 VDC Power System User Manual (Section 6013)
|
Rev. G
185
Replacing a Distribution Bus Assembly, All Lists except RA, RB, RC, RD, and RE
Refer to SAG581126000 for distribution assembly part numbers.
DANGER!
All sources of AC and DC power must be completely disconnected from this power system
before performing this procedure. Use a voltmeter to verify no DC voltage is present on the system
busbars before proceeding.
When performing the following procedure, refer to the appropriate detail of
Table 8:
Distribution Bus
Assembly List No.
See
Detail
AA, AM, JA, JB, JC,
JD, KA, LB, LC
A
EA
B
NA
C
BA, CA, LB, LC
D
AB, AC, CB, CD
E
AD, AE, CE, CF
F
NB
G
AG, AJ, CG, CJ
H
NC
J
ND
K
GB
L
AK
M
AL
N
Removing the Distribution Assembly
From Rear (or top as required):
1.
For 2-, 3-, and 4-row Distribution Cabinets Only: Remove the access cover(s) from the rear of the
Distribution Cabinet, if present.
2.
For Lists EA, GB, NA, NB, ND Only: Disconnect link busbar from system busbar (1 bolt for List EA—2
bolts each for Lists GB, NA, NB, ND).
3.
For 2-, 3-, and 4-row Distribution Cabinets Only: Disconnect the 9-pin alarm and control harness
connector from the mating plug on the main system wire harness (two connectors on Lists AD, AE, CE,
and CF).
From Front:
1.
Open the Distribution Cabinet's front door by turning and holding the captive fastener in the
counterclockwise position.