Model SK-5208 Fire Control/Communicator Installation and Operation Manual
3-36 P/N 151204
Note: It is not possible to reset the remote indication until you clear the condition and reset the SK-5208.
Figure 3-26 City Box Connection
3.15.1.2 NFPA 72 Polarity Reversal
When the 5220 is wired and programmed for polarity reversal, it reports alarm and trouble
events to a remote site. Alarms will override trouble conditions and it will not be possible to
reset the remote indicator until the condition is cleared and the SK-5208 panel is reset.
If an alarm condition occurs, the alarm relay will close, overriding the trouble condition.
To install the 5220 for polarity reversal, follow the steps below:
1. Locate the knockout on the right side of the SK-5208 cabinet to connect the 5220 using a
short piece of conduit (must not exceed 20 feet in length).
2. Wire the 5220 to the SK-5208 using the four-wire pigtail provided as shown in Figure 3-
27 (next page). This diagram also shows how to connect the 5220 to the remote indicator.
3. Program one of the notification circuits to be Direct Connect (Figure 3-27 uses NAC 4 and
Relay 4). The relay and NAC circuits are paired when selected as direct connect. For
example, if NAC 4 is programmed as Direct Connect then relay 4 used for the trouble
output. Do not program the NAC for Silence or Supervision (NACs with EOL).
5220
Control
Panel
Supervised for
Opens and Ground Faults
City Box
Coil Resistance
14.5 Ω
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