3M Detection Systems
System Configuration
4-7
3M 2000–2008
(green) at the time of alarm. If the system does not
respond, see the Troubleshooting Guide
.
There is no need for repetitive walk-through
testing.
4.1.11 Fuse Replacement
The fuses are located on the bottom of the Electronic
Enclosure in the power entry connector.
1. Turn the key switch to
OFF
and disconnect the
power cord from the power source.
2. Using a small flat blade screwdriver, remove the
fuse block from the power entry connector.
3. Do not remove the voltage selection block as this
has been set by the installer at the correct voltage.
4. Replace the failed fuses with the correct fuse for
your operating voltage:
a. Up to 100 to 120 VAC, use a 4A fuse.
b. Voltages over 220 to 240 VAC, use a 3.15A
fuse.
5. Reinstall the fuse block, connect the power cord
to the power source, and turn the key switch to
ON.
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