2 wiring a style z nac (four-wire), Wiring a style z nac (four-wire) – Fire-Lite SLC Intelligent Control Panel Wiring Manual User Manual

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FireLite SLC Wiring Manual — P/N 51309:P1 10/12/2011

Control Modules

Wiring a CMF-300-6 Module

6.5.2 Wiring a Style Z NAC (Four-Wire)

A supervised and power-limited NFPA Style Z (Class A) NAC with a single power supply dedi-
cated to a single NAC using a CMF-300-6 module. Polarized alarm notification appliances are
shown connected to the module in a four-wire configuration.

See “Power Considerations” on page 61 for information on monitoring 24 VDC power.

Each module can control 2 amps of resistive load (on electronic devices) or 1 amp of inductive
load (on mechanical bells and horns).

24 VDC power must be provided from a UL listed power supply for fire protection use.

A power supervision relay is required only on the last module of the power run.

Do not T-tap or branch a Style Z circuit.

Do not loop wiring under the screw terminals of any notification appliance. To maintain
supervision, break the wire run at each device.

NOTE: Refer to the Device Compatibility Document for compatible notification appliances and
relays.

Power Supervision
Relay
(EOLR-1)

24 VDC notification appliances

24 VDC
nonresettable
power

NAC

Out

CMF-300-6

NAC

Return

SLC

S

L

C-na

cZ

3.

cwmf

Power Supply Jumper

Relay Connector Assembly

Figure 6.6 NFPA Style Z Notification Appliance Circuit

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