Alpha Technologies
5
Maintenance
76
5.3
Removing System Components (Continued)
5.3.3: MBP
Procedure
1
Turn off the upstream circuit breaker.
2
Turn off the UPS’s AC Input & Output
circuit breaker.
3
Disconnect the From UPS wires from the
MBP.
4
Disconnect the To UPS wires from the
MBP.
5
Disconnect the AC Input and the AC
Output wires from the MBP.
6
Remove or perform maintenance on the
unit.
7
Perform this procedure in reverse order to
reinstall the MBP (also see Section 2.4).
MBP Removal Finished
G
AC I
NP
UT
L
N
L
N
FR
O
M
U
P
S
G
TO
U
P
S
AC
O
U
T
PUT
G
AC
I
N
P
U
T
L
N
L
N
FR
O
M
U
P
S
G
TO
U
P
S
A
C
O
U
T
P
U
T