System Sensor F36-05-00 Ex. Duct Filter

The System Sensor F36-05-00 Exhaust Duct Filter is the critical OEM replacement component required for maintaining the DH400 series duct smoke detectors. As any veteran tech knows, airborne particulate and high-velocity debris in commercial HVACR trunk lines are the primary drivers of nuisance alarms and sensor fouling. This factory-spec exhaust filter is engineered to protect the sensing chamber's integrity by screening contaminants before they compromise the photoelectric sensor.

Rigidly constructed to meet NFPA 72 duct smoke detector maintenance standards, the F36-05-00 ensures that sampling air remains clean for accurate obscuration readings. When performing quarterly inspections or solving intermittent trouble signals on a high-static system, replacing this genuine System Sensor part is non-negotiable for system uptime and compliance. This filter is a direct-fit solution that requires no modifications to the housing, ensuring your fire safety loop remains at peak sensitivity without the risk of false smoke alarms caused by clogged intake paths.

• OEM Compatibility: Specifically calibrated for the System Sensor DH400 housing for precise airflow management.
• Contaminant Suppression: Effectively traps dust and debris to prevent sensing chamber contamination and premature smoke detector failure.
• Optimized Airflow: Maintains the required differential pressure within the sampling tubes to ensure consistent detection.
• Industrial Durability: Built with high-grade materials to withstand the temperature fluctuations and moisture levels found in RTU and AHU ductwork.

Is the F36-05-00 compatible with newer InnovairFlex models?
No, this specific part is designed for the legacy DH400 series. For D4120 or DNR models, you will need the designated filters for those respective housings.

How often should these filters be replaced?
While environment-dependent, technicians should inspect the filter during every NFPA life safety test. If you notice discoloration or high-resistance airflow during a manometer test, immediate replacement is required to avoid system faults.

Can I clean and reuse the existing filter?
Standard protocol for HVAC duct smoke detectors dictates the use of new OEM filters to avoid re-introducing fine particulates into the sensitive laser or infrared sensing paths.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.