MBM OPERATING INSTRUCTIONS
Eaton 9395 Maintenance Bypass Module Installation and Operation Manual
S
164201719 Rev 3
www.eaton.com/powerquality
6-7
6.3.2
Transferring the UPS from Maintenance Bypass
C
A
U
T
I
O
N
Only trained personnel familiar with the operation of this equipment should transfer loads. Failure to follow
this transfer sequence may cause loss of loss of power to loads or overload protection devices to activate.
C
A
U
T
I
O
N
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
1.
Unfasten the MBM front door latch and swing the door open.
2.
Close the BIB and RIB if installed.
3.
Start the UPS in Bypass mode. Refer to the applicable Eaton 9395 Installation
and Operation manual listed in paragraph 1.7 on page 1-4.
C
A
U
T
I
O
N
Failure to close the MIS before opening the MBP will result in the loss of power to the critical load.
NOTE
If the UPS is not in Bypass mode, the MIS will trip when an attempt is made to close it.
4.
Close the MIS.
5.
Open the MBP.
6.
Close the front door and secure the latch.
7.
Transfer the UPS to Normal mode. Refer to the instructions in the operation
chapter of the applicable Eaton 9395 UPS Installation and Operation manual
listed in paragraph 1.7 on page 1-4.
6.4
MBM Operation – Kirk Key (Mechanical) Interlock
6.4.1
Transferring the UPS to Maintenance Bypass
C
A
U
T
I
O
N
Only trained personnel familiar with the operation of this equipment should transfer loads. Failure to follow
this transfer sequence may cause loss of power to loads or overload protection devices to activate.
C
A
U
T
I
O
N
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
1.
Verify the BIB and RIB (if installed) are closed.
2.
Transfer the UPS to Bypass mode. Refer to the instructions in the operation
chapter of the applicable Eaton 9395 UPS Installation and Operation manual
listed in paragraph 1.7 on page 1-4.