Installation and Maintenance Instructions
Wiring the DC Models
The DC units have two 24-inch leads, one black and one red.
To wire the DC beacon:
1. Ensure that power is off.
2. Remove the threaded dome assembly by twisting it
counterclockwise.
3. Connect the red (+) lead to the positive side of the power
source and the black (–) lead to the negative side of power
source.
4. If required, the green screw in the housing is provided for
connection to an earth ground. To gain access to the screw,
remove the power supply assembly.
5. Secure the dome to the base of the beacon.
6. Connect power to the beacon and test it for proper operation.
Safety Message to Maintenance Personnel
Listed below are some important safety instructions and
precautions you should follow:
• Read and understand all instructions before operating this
system.
• Any maintenance to the light system must be done with power
turned off.
• Any maintenance to the light system must be performed
by a trained electrician who is thoroughly familiar with all
applicable national and local codes in the country of use.
• Do not connect this beacon to the system when power is on.
• Do not disconnect the beacon while the circuit is live or unless
the area is known to be free of ignitable concentrations. Keep
the beacon tightly closed when in operation.
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Models 151XST and 151XST-S