APC by Apollo SL-2000-P Duct Smoke Detector: The Optimal Safety Solution for HVAC Systems

General Introduction

In modern HVAC systems, monitoring smoke directly within air ducts is a mandatory requirement to ensure fire safety for buildings. The APC by Apollo SL-2000-P is a Duct Smoke Detector utilizing advanced Photoelectric technology, specifically designed to detect the early presence of smoke in moving air streams.

This product is highly regarded for its wide voltage compatibility and high sensitivity in varying airflow environments. Currently, the device is imported and officially distributed by DLK – DLK TRADING SERVICE COMPANY LIMITED, ensuring full CO/CQ documentation and in-depth technical support for M&E contractors.

Below is a detailed technical analysis of the duct smoke detector model SL-2000-P based on official manufacturer documentation.

Operating Principle of the SL-2000-P

The APC by Apollo SL-2000-P operates based on aerodynamic air sampling principles combined with photoelectric sensor technology.

1. Air Sampling: The device utilizes two sampling tubes inserted through the duct wall. The sampling tubes capture the moving air stream using the pressure differential (Venturi effect), directing a portion of the air through the sensor chamber.

2. Detection: Inside the photoelectric sensor chamber, if the air stream contains smoke particles, they will scatter infrared light. The sensor registers this change and triggers an alarm state.

3. Control: Upon detecting smoke, the onboard Relays switch states to send a signal to the central fire alarm panel or directly shut down fans and close dampers to prevent smoke from spreading to other zones.

Practical Applications in Industry and Buildings

Based on its ability to operate stably across a wide range of air velocities (from 0.5 m/s to 20.32 m/s), the APC by Apollo SL-2000-P is widely applied in four main sectors:

1. High-rise Buildings and Commercial Centers

These locations possess complex HVAC systems. The SL-2000-P acts as a "gatekeeper," preventing toxic smoke from circulating through the central air conditioning system to different floors. The device is often integrated with BMS systems to trigger automatic evacuation scenarios.

2. Hospitals and Clean Rooms

Medical environments require strict air quality control. The SL-2000-P, with its high sensitivity, helps detect early smoldering fires from electrical equipment, ensuring safety for patients and expensive medical machinery.

3. Industrial Factories and Warehouses

In factories, large-capacity ventilation systems operate continuously. Installing the SL-2000-P allows for the immediate shutdown of fresh air supply fans in the event of a fire, preventing the supply of additional oxygen to the blaze. Furthermore, in modern fire protection systems, combining this with smoke sensors for pressurization fans creates a synchronized solution to effectively control smoke in emergency exit stairwells.

4. Data Centers

Server equipment generates significant heat and requires continuous cooling via high-velocity airflows. The SL-2000-P is specifically designed to function stably even in environments with fast-moving air (up to 4000 ft/min), protecting critical data assets from fire risks.

Technical Benefits of Using APC by Apollo SL-2000-P

• "No-Tools" Feature: The smart design allows for the removal of the cover, replacement of filters, and maintenance of the smoke chamber without tools (screwdrivers), helping technicians save time during installation and maintenance.

• Universal Voltage: A superior advantage of the SL-2000 series is its ability to accept multiple input voltage levels (24VAC, 24VDC, 115VAC, 230VAC) without the need for a converter, minimizing the risk of wiring errors.

• "Low-Flow" Technology: The sensor is capable of detecting smoke even when the air velocity in the duct is low (starting from 100 ft/min), overcoming the weaknesses of older generation duct sensors.

Key Technical Specifications Table

The data below is extracted accurately from the APC by Apollo Datasheet:

Guide to Selecting the Right Model and Installation

When selecting equipment for a project, engineers should note that the APC by Apollo SL-2000-P is a Photoelectric detector, best suited for smoldering fires that produce significant smoke.

Note on Sampling Tubes:

The detector does not come with a fixed-length sampling tube; it must be selected based on the actual width of the duct at the site. Common sampling tube options for the SL-2000 series include:

• STN-1.0: For duct widths up to 1 foot.

• STN-2.5: For duct widths from 1 to 2.5 feet.

• STN-5.0: For duct widths from 2.5 to 5.0 feet.

• STN-10.0: For duct widths from 5.0 to 10.0 feet.

Correct installation of the sampling tube length determines 100% of the device's accuracy. For detailed consultation, please refer to the duct smoke detector model SL-2000-P specifications provided by the distributor.

Why Buy from DLK?

DLK TRADING SERVICE COMPANY LIMITED is proud to be the official distribution partner for APC by Apollo products. When purchasing from DLK, customers are guaranteed:

• 100% Genuine Products: Commitment against floating market goods, with full CO/CQ for project acceptance.

• In-depth Technical Consultation: DLK's team of engineers is well-versed in HVAC and BMS systems, supporting model selection and providing detailed wiring instructions.

• Available Stock: Rapidly meeting schedules for M&E contractors and investors.

CONTACT INFORMATION

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