Firelite MS-5UD-3 Five Zone Conventional FACP

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  • Regular price $628.80

View Spec Sheet

  • Four Style B (Class B) IDCs (Initiating Device Circuits).
  • Two Style Y (Class B) NACs (Notification Appliance Circuits).
  • Optional module that converts all 4 IDCs and 2 NACs to Class A.
  • 24VDC.
  • I3 Technology Features: Drift compensation automatically adjusts detector sensitivity and increases resistance to false alarms caused by dust accumulation.
  • Maintenance Alert LEDs (per zone) warn of excessive dirt accumulation, preventing false alarms (meets NFPA 72, 7-3.2.1).
  • 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 contaminents settling in the chamber.
  • Wireless handheld sensitivity meter eliminates the need for voltemeters, magnets and a physical connection 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 detector 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 signals as required by NFPA 72 (3-
  • Provides synchronization of ADA compliant strobes per NFPA 72 (4-4.4.1).
  • 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 1 hour of inactivity.
  • Programmable for combination tamper supervisory monitor and waterflow alarm on one zone.
  • 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, Trouble and Supervisory relays.
  • 3.0 amps total useable current.
  • 6.0 amps total useable current available with optional second transformer.
  • Optional dress panel (part no. DP-MS2/4).

Control buttons:

  • ACK (Acknowledge)
  • Alarm Silence
  • Reset
  • Walktest
  • 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
  • Walktest
  • Alarm Silence
  • Earth Fault (on circuit board)
  • Battery Fault (on circuit board)
  • Charger Fault (on circuit board)
  • Piezo sounder for alarm, trouble, supervisory and maintenance.
  • Optional plug-in 4XTMF Transmitter module.
  • Optional plug-in 4XZMF Zone relay module.
  • Optional 4XLMF Transmitter module for RZA-4XF remote LED annunciator.

Operation Specifications

  • AC Power - TB8: 120 VAC, 50/60 Hz, 2.3 amps. 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 VDC @ 0.8 amp. Maximum Battery Charger Capacity: 18 amp hour battery (two 7 amp hour batteries can be housed in the FACP cabinet. Larger batteries require a separate battery box such as the FireLite BB-17F).
  • Initiating Device Circuits - TB3: Alarm Zones 1 - 4. Powerlimited circuitry. Operation: All zones Style B (Class B). Normal Operating Voltage: Nominal 22 VDC. Alarm Current: 15 mA minimum. Short Circuit Current: 40 mA maximum. Maximum Loop Resistance: 100 ohms. End-of-Line Resistor: 4.7 k OHM, 1/2 watt (P/N 71252). Standby Current: 4 mA. Refer to FireLite Device Compatibility Document ( Doc. No. 51384) for listed compatible devices).
  • Notification Appliance Circuits - TB2: Two NACs on MS-4. Power-limited circuitry. Normal Operating Voltage: Nominal 24 VDC. Maximum Signaling Current: 2.5 amps total with standard transform. 5.0 amps total (2.5 maximum per NAC) with optional transformer. End-of-Line Resistor: 4.7 k OHM, 1/2 watt (P/N 71252). Refer to FireLite Device Compatibility Document for listed compatible devices.
  • Form-C Relays: Trouble Relay TB 6. Supervisory Relay TB7. amps @ 30 VAC (resistive).

Auxiliary Outputs

  • Resettable Power - TB1: Operating Voltage: Nominal 24 VDC. Maximum Available Current: 500 mA - appropriate for powering 4-wire smoke detectors (see NOTES below). Power-limited circuitry.
  • Nonresettable Power - TB1: Operating Voltage: Nominal 24 VDC. Maximum Available Current: 500 mA (see NOTES below). Power-limited circuitry.
    1) See the Device Compatibility Document (Doc. No. 15384) for listed compatible devices .
    2) Total current for nonresettable power, resettable power and two NACs must not exceed 6 amps for the MS-4 (requires optional second transformer).

Cabinet Specifications

  • Door: 15.342" (38.97 cm) high x 14.677" (37.28 cm) wide x 0.375" (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.