Kidde CTM City Tie Assembly instructions

P/N 3101025-EN • REV 03 • ISS 16NOV15 1 / 2
CTM City Tie Module
Installation Sheet
Description
The CTM City Tie Module provides a single municipal box connection
for activating a local energy type master box connected to a public fire
alarm reporting system.
Installation
Install the CTM in accordance with NFPA 70 National Electrical Code.
WARNING: This device will not operate without electrical power. As
fires frequently cause power interruptions, we suggest you discuss
further safeguards with your fire protection specialist.
The CTM is shipped from the factory as an assembled unit; it contains
no user-serviceable parts and should not be disassembled.
For more information, refer to the technical reference manual listed
inside the control panel door.
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 the wiring diagram. See
Figure 1.
3. Using the 4-24 × 1/2 in (13 mm) self-tapping screw provided,
mount the wall plate to the module.
4. Using the two 6-32 × 1/2 in (13 mm) machine screws provided,
mount the module to the electrical box.
Wiring
Wire the CTM to a dedicated notification appliance circuit (NAC) as in
Figure 1 on page 2. Do not install other notification appliances on the
same circuit.
Specifications
Voltage
24 VDC nom.
Current
Standby
Alarm
20 mA
300 mA, max.
Ground fault impedance
0 Ω
Wire size
12 to 18 AWG (0.75 to 2.5 sq mm)
Mounting
North American 2-1/2 in (64 mm) deep
1-gang box
Municipal box connection
Wire resistance:
Trip current:
26 Ω
200 mA into a 14.5 Ω coil
Operating environment
Temperature
Relative humidity
32 to 120°F (0 to 49°C)
0 to 93% noncondensing
Contact information
For contact information, see www.edwardsfiresafety.com.
© 2015 Walter Kidde Portable Equipment, Inc.
All rights reserved.
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2 / 2 P/N 3101025-EN • REV 03 • ISS 16NOV15
Figure 1: CTM installation wiring diagram
[1] Power-limited and supervised for opens, shorts, and ground faults
[2] Nonpower-limited and supervised for opens and ground faults only.
26 Ω, max. 4.4 A, max.
[3] Use end-of-line resistor value required by the notification appliance
circuit
[4] NAC output signal must be compatible with the input rating of the
local energy type master box.
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1234
+
– ActiveNormal
Public fire alarm
reporting system
Local energy type
master box
+
–
+
– +
–
EOLR [3]
ActiveNormal
From dedicated notification
appliance circuit [4]
Compatible electrical box
CTM
Wall plate
Screws
14.5 Ω
trip coil
[1]
[2]
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