MS-2E

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Product Description

General

The Fire•Lite MS-2 and MS-2E Fire Alarm Control Panels(FACPs) bring the latest in microprocessor technology to conventionalfire controls.

The MS-2 is compatible with the i³™smoke detectors from System Sensor with drift compensation,maintenance alert, and freeze warning.

Automatic synchronizationof audio/visual devices with three selections for manufacturerprotocol. The Notification Appliance Circuit (NAC) protocolcan silence audible devices while strobes continue to flash,using a single pair of wires.

The MS-2 is compatible with conventional input devices such astwo- and four-wire smoke detectors, pull stations, waterflowdevices,

tamper switches and other normally-open contactdevices.

Refer to the Fire•Lite Device Compatibility DocumentPN 15384 for a complete list of compatible devices.

Note: Unless indicated otherwise, the term “MS-2” refers to bothMS-2 and MS-2E models.

Features

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

• One Style Y (Class B) NAC.

• 24 VDC.

• i³™ Technology features:

– Drift compensation automatically adjusts detector sensitivityand increases resistance to false alarms caused by dustaccumulation.

– Maintenance Alert LEDs (per zone) warn of excessive dirtaccumulation, preventing false alarms (meets NFPA 72requirements).

– Detector sensitivity is automatically measured by thedetector, which automatically adjusts its sensitivity back tothe factory settings

when it becomes more sensitive due tocontaminants settling in the chamber.

– Wireless handheld sensitivity meter eliminates the need forvoltmeters, magnets, and a physical connection to thedetector. The reader displays sensitivity in terms of percentper foot obscuration and provides text status indication.

– Supervisory LED (per zone) provides warning if a detectorsenses temperature approaching freezing.

– Special test protocol and LED indication allows quick test ofall detectors without need for a ladder.

• NAC synchronization features:

– Synchronization of standard ANSI audible signals asrequired by NFPA 72.

– Synchronization of ADA compliant strobes per NFPA 72.

– Selectable for System Sensor, Wheelock, and Gentexprotocols.

– Selective Silence for manual silence of horns whilestrobes continue to flash on the same NAC.

– Alarm verification selectable for each zone.

– Disable switches provided per zone.

• NAC programmable for:

– Silence Inhibit

– Auto Silence

– Strobe Synchronization

– Selective Silence (horn-strobe mute)

– Temporal or Steady signal

– Silenceable or Nonsilenceable

• Silent or audible Walk Test operation mode commanded fromthe front keypad, with automatic return-to-normal after onehour of inactivity.

• Each zone may be programmed for supervisory or fire; eachzone has separate red and yellow LEDs.

• Disable switches provided for each zone.

• Form-C Alarm and Trouble relays.

• 3.0 amps total usable current.

• Piezo sounder for alarm, trouble, supervisory and maintenance.

• Control buttons:

– ACK (Acknowledge)

– Alarm Silence

– Reset

– Walk Test

– Zone Enable/Disable (one per zone)

• LED indicators:

– 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)

– Charger Fault (on circuit board)

• Optional dress panel.

Operation

Activation of a compatible smoke detector or any normally-openfire alarm initiating device activates

audible and visual signalingdevices, illuminates an indicating LED, sounds the piezosounder at the FACP,

activates the FACP alarm relay and operatesan optional module used to notify a remote station or initiatean auxiliary control function.

Specifications

AC POWER — TB8

• MS-2: 120 VAC, 50/60 Hz, 2.3 A.

• MS-2E: 240 VAC, 50 Hz, 1.15 A.

• Wire Size: Minimum 14 AWG (2.0 mm²) with 600 V insulation.

BATTERY (SEALED LEAD-ACID ONLY) — J8

• Maximum charging circuit: normal flat charge 27.6 VCD @0.8 A.

• Maximum battery charger capacity: 18.0 AH battery (two7.0 AH batteries can be housed in

the FACP cabinet. Largerbatteries require a separate battery box such as the Fire•LiteBB-17F).

INITIATING DEVICE CIRCUIT — TB3

• Alarm zones 1 & 2.

• Power-limited circuitry.

• Operation: all zones Style B (Class B).

• Normal operating voltage: nominal 20 VDC.

• Alarm current: 15 mA minimum.

• Short-circuit current: 40 mA maximum.

• Maximum loop resistance: 100 ohms.

• End-of-line resistor: 4.7K ohm, ½ watt (P/N 71252).

• Standby current: 4 mA.

• Compatible devices: refer to the Fire

•Lite Device CompatibilityDocument PN 15384 for a complete list of compatibledevices.

NOTIFICATION APPLIANCE CIRCUIT — TB2

• One NAC.

• Power-limited circuitry.

• Normal operating voltage: nominal 24 VDC.

• Maximum signalling current: 2.5 A total with standard transformer.

• End-of-line resistor: 4.7K ohm, ½ watt (P/N 71252).

• Compatible devices: refer to the Fire•Lite Device CompatibilityDocument PN 15384 for a complete list of compatibledevices.

FORM-C RELAYS

• Trouble Relay TB5 (fail-safe).

• Alarm Relay TB6.

• Relay contact ratings: 2.0 A @ 30 VDC (resistive).

AUXILIARY OUTPUT: RESETTABLE POWER — TB1

• Operating voltage: nominal 24 VDC.

• Maximum available current: 500 mA — appropriate for poweringfour-wire smoke detectors (see notes).

• Power-limited circuitry.

Notes: 1) Refer to the Fire•Lite Device Compatibility DocumentPN 15384 for a complete list of compatible devices.2) Total current for resettable power and one NAC must notexceed 3.0 A for MS-2.

CABINET DIMENSIONS

Door: 15.342” (38.97 cm) high x 14.667” (37.28 cm) wide x0.375” (0.95 cm) deep.

Backbox: 15.0” (38.10 cm) high x 14.5” (36.83 cm) wide x 3.0”(7.62 cm) deep.

BACKBOX MOUNTING

The cabinet can be surface mounted. The door is removableduring installation by opening and lifting it off the hinges. Thecabinet mounts using two key slots at the top of the backbox andtwo additional 0.25” diameter holes at the bottom.

Listings and Approvals

• UL Listed: S624.

• MEA: 297-01-E.

• CSFM: 7165-0075:200.