NOTIFIER 1451 2 Wire and 4 Wire Ionization Smoke Detector Instruction Manual
- June 9, 2024
- NOTIFIER
Table of Contents
NOTIFIER 1451 2 Wire and 4 Wire Ionization Smoke Detector Instruction
Manual
General
The System Sensor 400 Series plug-in ionization smoke detectors respond quickly to both fast flaming and slow smoldering fires as required by UL 268. Unipolar dual chamber sensor has the sensitivity needed to quickly detect smoke, and the stability needed to avoid false alarms.
Features
- Unique dual unipolar sensor:
- Provides exceptional stability.
- Factory preset at 1.9% nominal sensitivity.
- Stable operation up to 1,200 feet per minute (6 meters per second) air velocities.
- Removable cover for field cleaning.
- Two visible LEDs “blink” in standby.
- Sealed against dirt, insects, and back pressure.
- Three-year limited warranty.
- Field metering of detector sensitivity.
- Built-in test switch.
- Low standby current.
- Built-in tamper-resistant feature.
- Designed for direct surface or electrical box mounting.
- 360° field viewing angle of the visual alarm LEDs.
- Insect-resistant screening (0.020″/0.508 mm openings).
- Easy plug-in of the head to base.
- SEMS screws for easy wiring.
- Optional recess mounting.
- Field-adjustable sensitivity
Applications
Use to contribute to life safety, fire protection, and property conservation. Superior to photoelectric detectors in detecting fast-flaming fires. Superior to bipolar detectors in avoiding false alarm
Construction & Operation
All 400 Series plug-in ionization smoke detectors contain a unique dual- source, dual unipolar chamber detection design which will sense the presence of smoke particles produced by fast combustion as well as slow smoldering fires. Additional key features include a blinking LED standby status indicator, an easily visible alarm indication, and provision for convenient field test and metering.
The back of the detector is sealed to block back-pressure air flow. The chamber is protected by a fine mesh (0.020″/0.508 mm) screen to minimize problems with dust, dirt, and insects. If cleaning is required, it is easy to remove the cover (with a special tool) and obtain access to the screen and chamber to perform a thorough cleaning.
Installation
Model 1451 detectors are intended for use with Notifier ULlisted control
panels. Maximum number of detectors per zone is listed in the installation
manual for each control panel. Easy
Ionization Detector shown with B401B Base
to install and maintain, this detector is designed for direct surface mounting (using one of the B400 Series bases listed below). Easy-to-wire screw terminals allow fast and simple field wiring of IN, OUT, and remote annunciator connections.
Consult Notifier control panel specifications for the maximum allowable loop resistance for the particular control panel to be used.
To prevent wiring mistakes, observe polarities and make certain that each conductor is identifiable. A copy of Installation and Maintenance Instructions is packaged with each detector. For further information, refer to NFPA 72 “Standard on Automatic Fire Detectors.”
A Mounting Base Selection Guide is included on page 2 of this document.
Junction Box Selection Guide: Box depth is contingent on base and wire size. Refer to National Electrical Code or local applicable codes for appropriate recommendations. Bases B401 and B401B can utilize a single-gang, 3-1/2″ (88.9 mm) octagonal, 4″ (101.6 mm) octagonal, or 4″ square junction box. Bases B402B and B406B can utilize a single-gang, 3-1/2″ octagonal, 4″ octagonal, 4″ square, 50 mm, 60 mm, or 75 mm junction box. Base B404B can utilize a 4″ octagonal or 4″ square junction box.
General Specifications
Operating voltage: mounting base dependent (see chart below).
Standby current: 120 micro amps.
Sensitivity: 1.9% nominal.
Weight: 0.6 pounds (272 grams).
Size: 3.2″ (81.28 mm) high; 4.0″ (101.6 mm) diameter with unflanged bases, or 6.2″ (157.48 mm) diameter with flanged bases.
Construction: Flame-retardant white Noryl® plastic.
Temperature: 32°F to 120°F (0°C to 49°C).
Humidity range: 10 to 93% R.H. (non-condensing).
Maximum air velocity: 1,200 feet per minute (6 meters per second)
Agency Listings and Approvals
These listings and approvals apply to the modules specified in this document. In some cases, certain modules or applications may not be listed by certain approval agencies, or listing may be in process. Consult factory for latest listing status.
- UL Listed: S911
- ULC Listed: S911 (1451A)
- MEA Listed: 427-91-E Vol. III
- FM Approved
- CSFM: 7271-1653:108
- BSA: 1202-88-SA
- Maryland State Fire Marshal Certificate: #2185
Product Line Information
1451: Ionization Detector. Must be mounted to one of the B400 Series Bases listed below.
RA400Z: Remote Annunciator for 2- or 4-wire applications. Use with any System Sensor 400 Series plug-in detector. Fits standard U.S. single-gang electrical box.
MOD400R: Field Test module for all of the System Sensor 400 Series Smoke Detectors.
B404B Wiring Diagram
B401(B) Wiring Diagram
B402B Wiring Diagram
B406B Wiring Diagram
Base Model Number (A)| Version| Loop Type| Current Limit
Resistor| Alarm Contact Type| Nominal Voltage| Standby
Voltage| Current Draw on Alarm
---|---|---|---|---|---|---|---
B401 & B401B (A)| UL/ULC/ EN-54| 2-wire| No| –| 12/24 VDC| 8.5 to 35 VDC| 10
to 100 mA
B402B (A)| UL & ULC| 4-wire| Yes| Form-A & -C| 24 VDC| 17 to 32 VDC| 14 to 39
mA
B404B (A)| UL & ULC| 4-wire| Yes| Form-A & -C/A Supervisory| 120 VAC| 120 VAC|
75 mA AC maximum
B406B (A)| UL/ULC/ EN-54| 2-wire| No| Form-C| 24 VDC| 15 to 32 VDC| 12 to 100
mA**
** Must be limited by control panel.
Relay Contact Ratings: Resistive or Inductive (60% power factor load). Form-a:
2.0A at 30VAC/DC. Form-C: 0.6A at 110VDC, 2.0A at 30VDC, 1.0A at 125 VAC. (A)
= ULC model designation
References
- Fire Alarm Resources | Download fire alarm documents
- Home (USA) | NOTIFIER by Honeywell | Engineered Fire Alarm System.
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