1: Nfpa 72 Polarity Reversal; Using The 5220 Module; Using The 7644-L8 Module - Honeywell Farenhyt Series Installation And Operation Manual

4.18.1 NFPA 72 Polarity Reversal
NOTE: Intended for connection to a polarity reversal circuit of a control unit at the protected premises having compatible rating.

Using the 5220 Module

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 control panel is reset.
If an alarm condition occurs, the alarm relay will close, overriding the trouble condition.
Standby Current: 100 mA, 24 VDC
Alarm: 100 mA, 24 VDC
To install the 5220 for polarity reversal, follow the steps below:
1. Locate the knockout on the right side of the control panel cabinet to connect the 5220 using a short piece of conduit (must not
exceed 20 feet in length).
2. Wire the 5220 to the control panel using the four-wire pigtail provided as shown in Figure 4.49. This diagram also shows how to
connect the 5220 to the remote indicator. Do not install an EOL resistor in the terminals of the NAC circuit used for this application.
3. Connect earth ground wire to the 5220 chassis with mounting screw.
4. Program the NAC circuit used as continuous and non-silencing. Refer to Section 9.5 for point programming, Section 9.4 for group
settings, and Section 9.3 for zone settings and mapping. It is not possible to reset the remote indication until you clear the condition
and reset the control panel.
5. If necessary, adjust loop current using the potentiometer (R10) on the 5220 board. Normal loop current is 2-to-8 mA with a 1k ohm
remote station protected premise unit. Maximum loop resistance is 3k ohm.

Using the 7644-L8 Module

When the 7644 is used for polarity reversal, it allows alarm and trouble events to be reported to a remote site. Alarms will override trou-
ble conditions and it will not be possible to reset the remote indicator until the condition is cleared and the control panel is reset.
IFP-300 / IFP-300ECS Manual P/N LS10145-001SK-E:B 12/18/2017
Figure 4.49 Polarity Reversal Connection Using the 5220 Module
Note:
NAC circuit 2 and Relay 2
used as examples. Any
NAC circuit and either
relay 1 or relay 2 could
be used.
Intended for connection to a Polarity
Reversal circuit of a Remote Station
receiving unit having compatible
ratings.
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