ADT Commercial Fire & Burglary Alarm System FOCUS 200 PLUS, Installation And Setup Manual

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FOCUS 200 PLUS Installation and Setup Guide
12-16
Step Action
3 If you are using the wired-in transformer, mount its enclosure to the wall near the
control unit, using the 4 mounting holes on the enclosure's rear surface.
4 Run 120VAC wire from the circuit breaker or fuse to the enclosure in conduit. Use wire
having insulation rated for at least 90°C operation. Use wire nuts to splice the 120VAC
wires to the transformer's white and black primary leads.
5 Run 16 AWG wire from the transformer's location to the control unit. Use wire that has
insulation rated for at least 90°C operation and that is suitable for non-power limited
applications.
6 Route the wire through a knockout on the left-hand side of the control unit's enclosure.
Tie wrap it to a tie-wrap loop near the knockout to separate it from other power-limited
wiring.
7 Connect the wires to the transformer's blue secondary leads, using wire nuts. Connect
the other end of the wire run to the control unit's AC terminals 1 and 2.
8 If you are using the plug-in transformer, run 16 AWG wire from the transformer's
location to the control unit.
9 Connect the wire to the transformer and to the control unit's AC terminals 1 and 2.
Connecting the Control Unit to Earth Ground
To connect the system to earth ground, perform the following steps:
Step Action
1 If you are using the wired-in transformer, connect the earth ground post inside the
transformer enclosure to a good earth ground (use grounding methods specified in the
National Electric Code).
2 Use a green nut (supplied) to secure the wire to the ground post. The earth ground wire
should be the only wire under this nut.
3 Run 16AWG wire from this post to the control unit’s earth ground terminal (3 or 4). Use
a second green nut (supplied) to secure this wire to the ground post. This method of
connection avoids ground loops that may occur when the 472404 Transformer and panel
are connected to different earth ground systems.
4 If you are using the plug-in transformer, run 16AWG wire from the control unit’s
earth ground terminal (3 or 4) to a good earth ground (use grounding methods specified
in the National Electric Code).
The control unit requires the earth ground connection in order for its lightning transient protection devices
and earth ground supervision to function properly.
Programming for Earth Ground Fault
For information about programming for earth ground fault, refer to Programming the Point
Data in the Programming section. Earth ground is point 245. Defaults for the earth ground
are:
Point Description Default Type Gateway # Hard ID
245 EARTH GND SPV 8 123