Hochiki SLV-24V Smoke Detector

The Hochiki SLV-24V Photoelectric Smoke Detector provides reliable smoke detection for compatible conventional fire alarm systems. Its photoelectric sensing technology can detect a wide range of fire conditions. In addition, the low-profile design makes the detector suitable for many commercial and institutional applications.

Reliable Photoelectric Smoke Detection

The Hochiki SLV-24V uses an infrared LED light source and a silicon photodiode inside the smoke chamber. During normal operation, the receiving element detects no light from the pulsing LED. However, smoke entering the chamber reflects light toward the receiving element.

The detector converts this light into an electronic signal. As a result, the device can recognize smoke conditions and trigger an alarm through the connected fire alarm system.

Its patented smoke chamber provides effective detection across a wide range of fire types. Therefore, the detector can respond to conditions ranging from smoldering fires to fast-flame fires.

Designed for Conventional Fire Alarm Systems

This photoelectric smoke detector operates at a nominal 24 VDC. Its working voltage range extends from 15 to 33 VDC. Moreover, the detector supports compatible 2-wire and 4-wire base configurations.

Two built-in bicolor LEDs provide clear visual status indication. During normal standby operation, the LEDs flash green every three seconds. When the detector senses smoke, the LEDs latch red to indicate an alarm condition.

Key Features

• Conventional photoelectric smoke detector
• Nominal 24 VDC operation
• 15 to 33 VDC working voltage range
• Low-profile design
• 2-wire and 4-wire base compatibility
• Two built-in bicolor status LEDs
• Non-directional smoke chamber
• RF and transient protection
• Removable smoke labyrinth
• Vandal-resistant security locking feature
• Automatic sensitivity window verification
• Highly resistant to nuisance alarms caused by steam
• Suitable for air velocities up to 4,000 FPM
• Compatible with selected Hochiki conventional bases

Performance and Specifications

The Hochiki SLV-24V has a supervisory current of 45µA at 24 VDC. In addition, its alarm current reaches up to 150mA at 24 VDC. The detector supports air velocities from 0 to 4,000 feet per minute.

Its sensitivity range extends from 0.5% to 3.8% per foot. Furthermore, the detector operates at ambient temperatures from 32°F to 100°F.

The housing uses a durable PC/ABS blend with a bone-colored finish. Its low-profile construction also provides a clean appearance after installation.

Base Compatibility and Applications

Compatible options include NS4 Series, NS6 Series, HSC-4R, and selected HSC relay-style bases. Therefore, this detector offers flexibility when servicing compatible conventional Hochiki systems.

Typical applications may include commercial buildings, offices, warehouses, schools, institutional facilities, and other properties that use compatible conventional fire alarm equipment.

The removable smoke labyrinth also helps with detector cleaning and maintenance. Moreover, the automatic sensitivity verification feature helps monitor detector performance.

Installation and Compatibility

Always confirm fire alarm control panel and base compatibility before installation. Also, verify the existing model, system voltage, wiring configuration, and installation requirements before replacing a detector.

Qualified fire alarm professionals should install and test the device. Finally, follow Hochiki instructions and applicable fire alarm codes to ensure proper installation and system operation.

Overall, this Hochiki photoelectric smoke detector offers reliable performance for compatible conventional fire alarm systems. Its flexible base options, dual status LEDs, smoke chamber design, and sensitivity verification features make it a practical choice for replacement and maintenance applications.