Application of SL‑2000‑P Duct Smoke Sensor in HVAC | DLK Official Distributor APC by Apollo

Application of SL‑2000‑P Duct Smoke Sensor in HVAC | DLK Official Distributor APC by Apollo

Application of SL‑2000‑P Duct Smoke Sensor in HVAC | DLK Official Distributor APC by Apollo

Posted on: 14/10/2025

Explore the role of the SL‑2000‑P duct smoke sensor in HVAC systems – an early fire detection solution. Distributed by DLK Vietnam, APC by Apollo official.

In modern HVAC systems, early smoke detection within air ducts is a critical factor that helps prevent fire spread and ensures safety for the entire building. Among the many options on the market, the SL-2000-P duct smoke detector by APC by Apollo (USA) is trusted by engineers for its fast, accurate detection and easy integration with BMS systems.

1. Introduction to the SL-2000-P Duct Smoke Detector

In facilities equipped with HVAC (Heating, Ventilation, and Air Conditioning) systems, early smoke detection plays a vital role in preventing fires from spreading through air ducts.

The SL-2000-P model is a duct-mounted smoke detector manufactured by APC by Apollo (USA) – a globally renowned brand in fire detection and safety equipment.

This device is specifically designed to detect smoke within the airflow of ducts, allowing the system to:

  • Detect fire incidents immediately when smoke first appears;
  • Automatically shut down fans or close air dampers to limit smoke propagation;
  • Trigger alarms and send signals to the central BMS or fire alarm control panel.

In Vietnam, DLK Vietnam is the authorized distributor of APC by Apollo equipment, committed to providing customers with high-quality, reliable, and long-lasting smoke detection solutions.

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2. Why Use Duct Smoke Detectors in HVAC Systems?

In HVAC systems, air continuously circulates between areas. When a fire occurs in one room, smoke can be drawn into the air ducts and spread to other rooms, making fire control much more complex.

Therefore, installing duct-mounted smoke detectors is almost mandatory for:

  • Commercial centers and high-rise office buildings;
  • Hotels, hospitals, and factories;
  • Areas equipped with central ventilation or air conditioning systems.

Compared to conventional ceiling-mounted detectors, the SL-2000-P offers the ability to:

  • Continuously monitor air inside ducts;
  • Detect smoke earlier – even before it escapes from the fire zone;
  • Enable BMS or fire alarm systems to quickly and accurately activate fan shutdown, damper closure, or alarms.

3. Outstanding Features of the SL-2000-P Duct Smoke Detector

The SL-2000-P detector is intelligently designed and meets international fire safety standards. Some of its notable advantages include:

  • High-sensitivity optical sensor – quickly detects fine smoke particles, minimizing false alarms.
  • Modular design – easy maintenance, cleaning, and detector head replacement without removing the entire unit.
  • Clear LED status indicators – showing power, alarm, and fault conditions.
  • Dual sampling tubes (inlet and outlet) – ensure stable airflow through the sensing chamber for accurate measurement.
  • Compatible with popular fire alarm and BMS systems – easy integration, signal transmission via alarm relay or 4–20mA output.
  • High durability and reliability – resistant to harsh duct conditions (dust, vibration, humidity).

Thanks to these advantages, the SL-2000-P is considered one of the most reliable duct smoke detector models for modern HVAC systems.

4. Practical Applications of the SL-2000-P in HVAC Systems

The SL-2000-P is typically installed at key points on return or supply air ducts, right after fans or air mixing chambers. Common applications include:

  • Office buildings and commercial centers: prevent smoke from spreading through central air-conditioning systems.
  • Hotels and hospitals: enhance safety in areas with high human occupancy.
  • Factories: protect areas containing equipment or flammable materials.
  • Schools and public spaces: support early warning and automatic smoke suppression activation.

Additionally, the device can connect to central BMS control systems, enabling operators to monitor sensor status, perform periodic checks, and log event data conveniently.

5. Benefits of Using the SL-2000-P Supplied by DLK Vietnam

DLK Vietnam is the authorized distributor of APC by Apollo in Vietnam, specializing in providing sensor and monitoring solutions for BMS, HVAC, and fire safety systems.

When choosing the SL-2000-P from DLK Vietnam, customers will receive:

  • Genuine products imported directly from APC by Apollo (USA);
  • Full CO and CQ certificates, ensuring technical standards and origin;
  • Professional technical consultation, support in selecting models and installation locations suitable for each project;
  • Reliable warranty policy and prompt, dedicated after-sales support.

6. Conclusion

The SL-2000-P duct smoke detector is an effective and early fire detection solution for HVAC systems, contributing to fire safety, preventing smoke spread, and protecting both people and property.

With extensive experience in sensors and measuring devices, DLK Vietnam is proud to be the official distributor of APC by Apollo in Vietnam, providing high-quality products that serve BMS, HVAC, and modern industrial applications efficiently.

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