Fire-Lite Alarms MS-2

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DF-52211 • 02/16/05

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GENERALGENERAL

GENERAL

The Fire•Lite MS-2 and MS-2E Fire Alarm Control Panels

bring the latest in microprocessor technology to conven-

tional fire controls. The MS-2 is compatible with the new

i³™

smoke detectors from System Sensor, and provides

such advanced features as drift compensation, mainte-

nance alert, and freeze warning. Automatic synchronization

of audio/visual devices is provided, using three selections

for manufacturer protocol. The NAC protocol includes the

ability to silence audible devices while strobes continue to

flash, using only a single pair of wires.

The MS-2 also is compatible with conventional input de-

vices such as two- and four-wire smoke detectors, pull

stations, waterflow devices, tamper switches and other nor-

mally-open contact devices. For 240 VAC operation, order

MS-2E. See the

Fire•Lite Device Compatibility Document

15384

for a complete list of compatible devices.

NOTE: Unless indicated otherwise, the term “MS-2” refers to

both MS-2 and MS-2E models.

FEATURESFEATURES

FEATURES

• Two Style B (Class B) IDCs (Initiating Device Circuits).

• One Style Y (Class B) NAC (Notification Appliance Circuit).

• 24 VDC.

•

i³™ Technology features:

— Drift compensation automatically adjusts detector sen-

sitivity and increases resistance to false alarms caused

by dust accumulation.

— Maintenance Alert LEDs (per zone) warn of exces-

sive dirt accumulation, preventing false alarms (meets

NFPA 72 requirements).

— Detector sensitivity is automatically measured by the

detector, which automatically adjusts its sensitivity back

to the factory settings when it becomes more sensitive

due to contaminants settling in the chamber.

— Wireless handheld sensitivity meter eliminates the

need for voltmeters, magnets and a physical connec-

tion to the detector. The reader displays sensitivity in

terms of percent per foot obscuration and provides

text status indication.

— Supervisory LED (per zone) provides warning if a de-

tector senses temperature approaching freezing.

— Special test protocol and LED indication allows quick

test of all detectors without need for a ladder.

•

NAC synchronization features:

— Provides synchronization of standard ANSI audible sig-

nals as required by NFPA 72.

— Provides synchronization of ADA compliant strobes

per NFPA 72.

— Selectable for System Sensor, Wheelock and Gentex

protocols.

— Selective Silence feature allows manual silence of

horns while strobes continue to flash on the same NAC.

• Silent or Audible Walk Test operation mode commanded

from the front keypad, with automatic return to normal after

one hour of inactivity.

• Alarm verification selectable per zone.

• Each zone may be programmed for supervisory or fire,

with separate red and yellow LEDs.

• Disable switches provided per zone.

•

NACs programmable for:

— Silence Inhibit

— Auto Silence

— Strobe Synchronization

— Selective Silence (horn-strobe mute)

— Temporal or Steady signal

— Silenceable or Nonsilenceable

• Form-C Alarm and Trouble relays.

• 3.0 amps total usable current.

• Optional dress panel (P/N DP-MS2/4).

S624

MS-2

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MEA

297-01-E

California

State Fire

Marshal

MSMS

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DF-52211 • A2-250February16, 2005

Section: Conventional

www.firelite.com

Fire•Lite® Alarms is a Honeywell company.

This document is not intended to be used for installation purposes. We try to keep

our product information up-to-date and accurate. We cannot cover all specific

applications or anticipate all requirements. All specifications are subject to change

without notice.

For more information, contact Fire•Lite Alarms, One Fire-Lite Place, Northford,

Connecticut 06472. Phone: (800) 627-3473, Toll-Free FAX: (877) 699-4105.

Made in the U.S.A.

i³™ is a trademark of System Sensor, a Honeywell company.

Need help?

Do you have a question about the Fire-Lite Alarms MS-2 and is the answer not in the manual?

Summary

General Product Overview

General Description

Details the Fire Lite MS-2 and MS-2E Fire Alarm Control Panels, highlighting microprocessor technology and compatibility.

Key Features and Technology

Outlines core features including IDC/NAC configurations, voltage, and advanced j3TM technology for detector management.

NAC Synchronization Capabilities

Explains the panel's ability to synchronize audible signals and ADA compliant strobes as per NFPA 72 standards.

Programmable NAC Features

Lists programmable options for Notification Appliance Circuits (NACs), including silence inhibit, auto silence, and strobe synchronization.

Control Buttons and Indicators

Front Panel Control Buttons

Lists and describes the function of control buttons on the FACP, such as ACK, Alarm Silence, Reset, and Walk Test.

Front Panel LED Indicators

Details the various LED indicators on the FACP for Fire Alarm, Supervisory, Trouble, Maintenance, AC Power, and NAC status.

System Operation and Specifications

System Operation

Describes how initiating devices activate signaling devices, LEDs, and relays on the Fire Alarm Control Panel.

AC Power Specifications

Provides AC power input requirements for the MS-2 and MS-2E models, including voltage, frequency, and current.

Battery Specifications

Details specifications for the sealed lead-acid battery, including charging circuit voltage, current, and capacity.

Initiating Device Circuits (IDCs)

Specifies the characteristics of the initiating device circuits, including zones, power, operation, voltage, and current.

Notification Appliance Circuits (NACs)

Outlines the specifications for Notification Appliance Circuits, including power, signaling current, and end-of-line resistors.

Form-C Relays and Auxiliary Output

Details the specifications for Form-C Alarm and Trouble relays and the resettable power auxiliary output.

Cabinet Dimensions and Mounting

Provides the physical dimensions for the FACP door and backbox, and describes surface mounting procedures.

The Fire-Lite MS-2 and MS-2E Fire Alarm Control Panels represent a significant advancement in conventional fire control technology, integrating the latest microprocessor capabilities. These panels are designed to be compatible with System Sensor's i3™ smoke detectors, offering a suite of advanced features that enhance reliability and reduce false alarms.

Function Description

The primary function of the MS-2 and MS-2E panels is to monitor initiating device circuits (IDCs) for fire conditions and activate notification appliance circuits (NACs) in response. When a compatible smoke detector or any normally-open fire alarm initiating device (such as a pull station, waterflow device, or tamper switch) activates, the panel initiates a series of responses. These include activating audible and visual signaling devices, illuminating an indicating LED on the panel, sounding an internal piezo sounder, and activating the FACP alarm relay. Additionally, the panel can operate an optional module to notify a remote station or initiate an auxiliary control function.

The MS-2 is equipped with two Style B (Class B) IDCs, allowing for the connection of various initiating devices. It also features one Style Y (Class B) NAC for connecting notification appliances. The panel operates on 24 VDC. For installations requiring 240 VAC operation, the MS-2E model is available.

A key feature of these panels is their advanced NAC synchronization capabilities. They provide synchronization for standard ANSI audible signals, as required by NFPA 72, and for ADA-compliant strobes. This ensures that all notification appliances operate in a coordinated manner. The panels offer selectable synchronization protocols for System Sensor, Wheelock, and Gentex devices, providing flexibility in system design. A unique "Selective Silence" feature allows for the manual silencing of horns while strobes continue to flash on the same NAC, using only a single pair of wires.

The MS-2 also includes "Silent or Audible Walk Test" operation mode, which can be commanded from the front keypad. This mode automatically returns to normal operation after one hour of inactivity, simplifying system testing. Alarm verification is selectable per zone, allowing for customization based on specific application requirements. Each zone can be programmed for either supervisory or fire conditions, with separate red and yellow LEDs to indicate their status. Disable switches are provided per zone, offering granular control over individual circuits.

The NACs are highly programmable, offering options such as Silence Inhibit, Auto Silence, Strobe Synchronization, Selective Silence (horn-strobe mute), Temporal or Steady signal, and selection between Silenceable or Nonsilenceable operation. The panel also includes Form-C Alarm and Trouble relays for external interfacing and a resettable power output for powering four-wire smoke detectors.

Usage Features

The MS-2 and MS-2E panels are designed for ease of use and flexibility in various conventional fire alarm applications. The front panel features a set of control buttons for common operations: ACK (Acknowledge), Alarm Silence, Reset, Walk Test, and Zone Enable/Disable (one per zone). These buttons provide intuitive control over the system's functions.

A comprehensive set of LED indicators on the front panel provides immediate visual feedback on the system's status. These include LEDs for Fire Alarm (one per zone), Supervisory (one per zone), Trouble (one per zone), Maintenance (one per zone), AC Power, NAC Disable, Zone Disable, NAC Fault, System Trouble, Power Trouble, Walk Test, Alarm Silence, Earth Fault (on circuit board), Battery Fault (on circuit board), and Charger Fault (on circuit board). This detailed status indication helps operators quickly identify and address any issues.

The internal piezo sounder provides audible alerts for alarm, trouble, supervisory, and maintenance conditions, ensuring that operators are promptly notified of any changes in system status.

Maintenance Features

The MS-2 and MS-2E panels incorporate advanced i3™ Technology features that significantly enhance system reliability and simplify maintenance. These features are primarily focused on the intelligent management of smoke detectors:

Drift Compensation: This feature automatically adjusts detector sensitivity over time, increasing resistance to false alarms caused by dust accumulation. This reduces the frequency of nuisance alarms and extends the operational life of the detectors.
Maintenance Alert LEDs: Each zone has dedicated Maintenance Alert LEDs that warn of excessive dirt accumulation in the detectors. This proactive warning helps prevent false alarms by indicating when a detector requires cleaning, thereby meeting NFPA 72 requirements.
Automatic Sensitivity Adjustment: The detectors automatically measure their sensitivity and adjust it back to factory settings when they become more sensitive due to contaminants settling in the chamber. This self-correction mechanism ensures consistent performance and reduces the need for manual recalibration.
Wireless Handheld Sensitivity Meter Compatibility: The panels are compatible with a wireless handheld sensitivity meter, eliminating the need for voltmeters, magnets, or physical connections to the detector. This meter displays sensitivity in terms of percent per foot obscuration and provides text status indications, making detector testing and maintenance much more efficient.
Supervisory LED for Freeze Warning: A Supervisory LED per zone provides a warning if a detector senses temperatures approaching freezing. This feature is crucial in environments where temperature fluctuations could impact detector performance or lead to pipe bursts.
Special Test Protocol: The panels support a special test protocol with LED indication, allowing for quick testing of all detectors without the need for a ladder. This significantly reduces the time and effort required for routine system checks.

These maintenance-focused features collectively contribute to a more reliable fire alarm system with reduced operational costs and simplified upkeep, ensuring that the system remains in optimal working condition with minimal intervention.

Fire-Lite Alarms MS-2 Specifications

General

Type	Conventional Fire Alarm Control Panel
Zones	2
NACs	2
Total System Current	3.0 A
Operating Voltage	24 VDC
Battery Charging Current	1.0 A
Operating Temperature	32°F to 120°F (0°C to 49°C)
Relative Humidity	10% to 93% non-condensing
Power Supply	120 VAC, 60 Hz
Dimensions	3.5"