RT-3000-P APC by Apollo Duct Smoke Detector – Early Fire Detection for HVAC Systems
Posted on: 22/07/2026
Ductwork is a primary pathway through which smoke can rapidly spread throughout a building in the event of a fire. Therefore, installing dedicated smoke detectors directly inside ductwork is a mandatory requirement under current fire safety regulations. The RT-3000-P model from APC by Apollo is a Duct Smoke Detector preferred by many M&E contractors due to its high reliability and flexible integration with central fire alarm systems.
Introduction to RT-3000-P Duct Smoke Detector
The RT-3000-P delivers an early smoke detection solution featuring dual detector technologies: engineers can select either photoelectric or ionization heads depending on the specific project requirements. The unit automatically detects the operating voltage (24 VAC/VDC or 115/230 VAC) and features built-in DPDT relays, allowing fan shutdown control and direct connection to the central fire alarm panel.
Technical Specifications
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Specifications
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Details
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Brand
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APC by Apollo (USA)
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Power Supply
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24 VAC/VDC, 115 VAC, or 230 VAC (50/60 Hz)
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Relay Contacts
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DPDT (10A @ 115 VAC)
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Air Velocity
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100 to 4,000 ft/min (0.5 – 20.3 m/s)
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Operating Temperature
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32°F to 140°F (0°C to 60°C)
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Operating Humidity
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0% to 85% RH (non-condensing)
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Detector Technology
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Photoelectric or Ionization (Optional)
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Enclosure Design
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Clear cover for visual LED inspection without opening the unit
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Certifications
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UL, CSFM, MEA, FM
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Warranty
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12 months (Optional upgrade to 36 months)
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Installation & Operating Guide
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Identify the installation location on the ductwork in accordance with local fire safety codes—typically located on main return air or supply air ducts, before or after AHU filters.
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Verify air velocity at the installation spot falls within the permitted range (100–4,000 ft/min). If velocity is too low or too high, adjust the location or re-engineer the sampling tube setup.
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Mount the housing unit to the outer wall of the duct and insert the sampling tube across the duct cross-section according to the actual duct size.
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Connect the power supply according to the auto-sensing voltage (24 VAC/VDC or 115/230 VAC), and wire the DPDT relay outputs to the fan control circuit and central fire alarm system.
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Test the device via the test port and magnet test procedure as specified by the manufacturer, without needing to dismantle the unit.
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Observe the LED status indicator through the clear cover to confirm normal operating or alarm state.
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Schedule periodic maintenance and testing as mandated by fire safety regulations (typically every 6 months) to ensure continuous operational readiness.
Note: Wiring to central fire alarm panels must comply with applicable fire regulations and should be carried out by qualified contractors and approved by local fire safety authorities.
Practical Applications
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Installed on main duct lines of commercial and industrial HVAC systems.
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Integrated with central fire alarm panels to automatically shut down supply/return fans upon smoke detection.
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Ideal for shopping malls, hospitals, factories, and commercial office buildings.
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Meets fire inspection and acceptance requirements for building ventilation systems.
Why Buy RT-3000-P from DLK?
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100% Authentic Products: Direct distribution of APC by Apollo with full UL/FM certifications and CO/CQ documents.
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Technical Support: Professional guidance on choosing detector technologies and sampling locations per fire protection designs.
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Complete Documentation: Fully detailed technical catalogs provided to support project submittals and approvals.
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Transparent Warranty: Fast and reliable technical customer support.
Contact DLK for Consultation & Quotes