Overvoltage Protection Replacement Instruction - COMEM eSDB10 Instruction Manual

Appendix B - Overvoltage protection replacement
instruction
Introduction
The scope of this instruction is to provide the instruction
for an easy and safe replacement or retrofitting of the so
called "overvoltage protection" for eSDB.
Safety instruction
Make sure that the personnel installing/replacing the
"overvoltage protection"for eSDB:
• Are technically qualified and competent
• Fully comply with these assembling instructions
Improper operations or misuse could cause danger to:
• life and limb
• to the equipment and other assets of the operator
• to the proper function of the equipment.
Overvoltage protection replacement
Case
The overvoltage protection operated to protect the control
PCB so it has to be substituted by a new one.
Components
The kit to complete the replacement is made by the
following components (Tab.6):
Description
A Varistor:
It is provided by COMEM as spare part.
Each eSDB with overvoltage protection has
the first varistor already mounted on the PCB
while an additional spare part is included in the
supply and placed within the electrical box.
B Fuse:
It is provided by COMEM as spare part.
Each eSDB with overvoltage protection has the
first fuse already mounted on the PCB while an
additional spare part is included in the supply
and placed within the electrical box.
Table 6
12
Main tools
The following tools have to be provided to the technician
who will take care of mentioned operations, COMEM will
not supply them.
Description
A Screwdriver
B Key n° 5 (for the screw type TCEI)
C Tester
Pictures
Table 7
SELF-DEHYDRATING BREATHERS eSDB 10/15/30
Pictures