Edwards CTM Instructions de montage

CTM City Tie Module Installation Sheet

1234

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.

4. Using the 4-24 × 1/2 in (13 mm) self-tapping screw

provided, mount the wall plate to the module.

5. 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 

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 

200 mA into a 14.5 coil

Operating environment

Temperature

Relative humidity

32 to 120°F (0 to 49°C)

0 to 93% noncondensing

2 / 2 P/N 3101025 • REV 02 • REB 25JAN13

Figure 1: CTM installation wiring diagram

1234

–

Act iveNormal

Public fire alarm

reporting system

Local energy type

master box

–

–+

–

EOLR [ 3 ]

Act iveNormal

From dedicated notification

appliancecircuit [4]

Compatibleelectrical box

CTM

Wall plate

Sc r ew s

14.5 

trip coil

[1]

[2]

[1] Power-limited and supervised for opens, shorts, and ground faults

[2] Nonpower-limited and supervised for opens and ground faults

only. 26 , 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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