3
Removing The Existing Console
The key to a successful TLS-450PLUS retrofit installation is the careful removal of the old console and wiring.
The first concern is safety, so if the console is in a public area of the store, barricade off the work area to prevent
injuries.
1. Prior to removing the TLS-350 console, print out the current TLS-350 console’s setup configuration that will be
used to program the TLS-450PLUS.
2. Turn off, tag and lockout the breaker that supplies power to the TLS-350 console.
3. Remove the door screws (with a T-15 Torx driver), open the console and unplug the power connector in the
power bay. It’s always a good idea to use a multimeter to confirm that the circuit is dead before pulling these
wires through the console knockout.
4. Verify all Intrinsically safe wires are labeled and their polarity (if applicable) noted before removing them. Verify
all non-intrinsically wiring connections are labeled before removing them.
5. Unplug the high and low voltage connectors from the console. After removing the wires from the connectors,
plug them back into the modules.
6. Disconnect and label all wires from the communication modules.
7. Remove both ground wires, the chassis ground and the barrier ground, from the grounding lugs in the console.
8. Loosen the power conduit ring, remove it and pull the wires through the knockout. Once both the high and low
voltage wires have been removed, remove the console from the wall. Keep the mounting screws if possible
because the mounting holes for the TLS-450PLUS match the mounting holes for the TLS-350.
9. Remove the power and ground wires from the wire bundle if they were run in the same conduit with the High
Voltage wires. A separate power conduit will need to be run to the TLS-450PLUS.
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