Table of Contents
Advertisement
Replacing Power Supply Board
Units with Counter or Audible Alarm Options
Equipment Needed:
Small flat blade screwdriver
Large flat blade screwdriver
Parts Needed:
Replacement power supply board (contact factory for part)
Tie wraps
Marking tape
DISCONNECT POWER TO THE UNIT
BEFORE PROCEEDING
Procedure:
Note: The power supply board is located on the back side
(inside) of the front door.
1.
On the power supply board, use tie wraps to secure the
black, white, and green wires at terminal block TB#1.
2.
At terminal block TB#4, using tape, mark the wires from
1 – 6 depending on options.
3.
Terminal block TB#3 is for customer wiring for remote
status indication. If there are wires connected to this
terminal block, note each wires position so that they may
be correctly replaced on new power supply board.
Installation, Operation
and Maintenance Manual
®
4.
5.
6.
7.
8.
If (after replacement) green LEDs are not illuminated on
all modules and the door, or if the red LED or alarm on
the door are ON, disconnect power to the unit and
recheck all connections.
contact factory.
Preventative Maintenance
(Inspection and Cleaning)
Periodic system inspections, cleaning, and connection checks
are recommended to ensure reliable system performance and
continued surge transient protection.
It is difficult to establish a schedule for preventative
maintenance since conditions vary from site to site.
Inspections for failed surge current diverter modules using
available diagnostics should be done routinely (weekly or
monthly).
- 13 -
Disconnect all wires from the power supply board.
Remove the four screws from the corners and remove
the board.
Position the new power supply board and secure it using
the four screws.
Reconnect wires to all terminal positions.
Restore power to unit. Assure that the LED on each
module is illuminated. Assure green LED on door is
illuminated and red LED and alarm (if applicable) are
off.
Replacement is now complete.
If problem is not apparent,
Surge
Suppression
Systems
LM Series
Rev 0, 5/99
Hide quick links:
Advertisement
Table of Contents
