United Technologies Kidde FX-NAC Assembly instructions

P/N 3101085-EN • REV 006 • ISS 03JUL18 1 / 2
FX-NAC Analog NAC Module
Installation Sheet
Operation
The module is an analog addressable device used to connect a
supervised output circuit to a signal riser. The output wiring is
monitored for open and short circuits. A short circuit causes the
module to inhibit the activation of the audible/visual signal circuit so the
riser is not connected to the wiring fault. Upon command from the
control panel, the module connects the output circuit to the riser input.
The output circuit energizes a riser to operate polarized audible and
visual signals. The module can be used for connection of a Class A or
Class B (with EOL) output notification appliance circuit (NAC).
The device address is set using the two rotary switches located on the
front of the module. One device address is required.
The module is configured to operate as a Genesis
Audible/Visual/Silence device type from the factory. The module can
also be configured for other device types through front panel
programming or the configuration utility. Refer to the applicable control
panel technical reference manual for a list of available device types.
Genesis Audible/Visual/Silence: Used with Genesis and Enhanced
Integrity horns and strobes. Genesis and Enhanced Integrity
appliances maintain synchronization per UL 1971. For Genesis
devices, this configuration allows connected horns to be silenced while
strobes on the same two-wire circuit continue to flash until the panel is
reset.
LED operation
The module provides a bicolor LED that shows its status.
Normal: Green LED flashes
Active: Red LED flashes
Installation
Install and wire this device in accordance with applicable national and
local codes, ordinances, and regulations.
WARNINGS
•This module will not operate without electrical power. As fires
frequently cause power interruption, you should discuss further
safeguards with your local fire protection specialist.
Note: The module is shipped from the factory as an assembled unit; it
contains no user-serviceable parts and should not be disassembled.
To install the module:
1. Verify that all field wiring is free of opens, shorts, and ground
faults.
2. Make all wiring connections as shown in “Wiring”and Figure 3.
3. Set the module address. Refer to the panel technical reference
manual for a list of valid addresses.
Use a screwdriver to adjust the two rotary switches on the front of
the module. Set the TENS rotary switch (0 through 12) for the 10s
and 100s digit and the ONES rotary switch for the 0 through 9
digit. For example: device address 21, set TENS rotary switch to 2
and set the ONES rotary switch to 1 (see Figure 1).
4. Mount the module on the electrical box using screws provided with
the electrical box.
5. Mount the wall plate on the module using #4-24 × 1/2 in. (13 mm)
self-tapping screws.
Figure 1: Module address
Figure 2: Module installation
Wiring
Wire the device as shown in Figure 3. Be sure to observe the polarity
of the wires.
Insert
screwdriver
here
Screw
4-24
screws
Module
Wall plate
Compatible
electrical box

2 / 2 P/N 3101085-EN • REV 006 • ISS 03JUL18
Figure 3: Module wiring
Notes
[1] Maximum 25 Ω resistance per wire. Maximum circuit capacitance of 0.1 µF.
[2] Maximum 12 AWG (2.5 sq. mm) wire; minimum 18 AWG (0.75 sq. mm) wire
[3] Refer to the control panel technical reference manual for wiring specifications
[4] If the NAC power riser is used for more than one notification zone, install in accordance with the survivability from attack by fire requirements in
NFPA 72
[5] Supervised –Class A or Class B
[6] Polarity shown in active condition. Polarity reverses on supervisory condition
[7] Typical synchronized temporal horn/strobe circuit when configured as Class A/B auto sync signal output module through programming
[8] Transient protection (see “Transient protection caution” below)
[9] Supervised, 16.5v trouble threshold. Approximately 20 second delay fault reporting
[10]In order to have a Class A output of the FX-NAC the SLC inputs must be Class A and the power input circuit needs to be in same cabinet or
containted within the same room by no more than 20' in conduit.
[11]For further wiring information, refer to panel documentation
Transient protection caution
The module requires transient protection for installations that connect
electromechanical bells or horns to output circuits. The module's
circuitry requires a bipolar transient protector (P/N 235196P) for
protection against transient spikes caused by the inductive load of
bells or horns.
Connect the bipolar transient protector assembly across the terminals
of the bell or horn electrically closest to the module. The bipolar
transient protector is not polarity-sensitive.
Locate bells and horns at least 6 ft. (1.83 m) from the module.
Specifications
Communication line
voltage
Maximum 20.6 V peak-to-peak
Current
Standby
Activated
280 µA
100 µA
Ground fault impedance
10 kΩ
Operating environment
Temperature
Relative humidity
32 to 120°F (0 to 49°C)
0 to 93% noncondensing at 90°F (32°C)
Output ratings
Circuit current
EOL resistor value
24 VDC at 2 A max.
47 kΩ UL listed
Storage temperature
range
–4 to 140°F (–20 to 60°C)
Compatible electrical
boxes
North American 4 inch square × 2-1/2 in.
(64 mm) deep 2 gang box
Standard 4 in. square box 1-1/2 in.
(38 mm) deep
Wire size
12, 14, 16, or 18 AWG wire
(2.5, 1.5, 1.0, or 0.75 mm2)
(Sizes 16 and 18 AWG are preferred)
Contact information
For contact information, see www.kiddelifesafety.com
© 2018 United Technologies Corporation
All rights reserved.
From
listed
power
supply [9] [10]
[2] [3] [5]
Class A or Class B
24 VDC (+)
24 VDC
Circuit wired
same as
diagram above
Class A
[1] [2] [5] [6]
Class A
[1] [2] [5] [6]
Class B
[1] [2] [5] [6]
Class B
[1] [2] [5] [6]
[8]
Typical bell circuit
Typical horn or
strobe circuit [7]
47 k EOLR
Used for
Class B only

47 k EOLR
Used for
Class B only

TB2
TB1








+
+
-
-
RETURN
NAC PWR. IN
NAC
SLC
(+)
(+)
From
previous
device
To next
device
SLC out (+)
SLC out
SLC in
SLC in (+)
( )
( )
( )
( )
( )
( )
( )