WhisperFit DC Fan Retrofit Solution: Smart Airflow Control & Effortless Installation
Upgrade your ventilation system with the WhisperFit DC Fan—a versatile retrofit upgrade designed for efficiency and simplicity. Featuring an advanced energy-saving ECM (DC) motor paired with Pick-A-Flow™ technology, this fan lets you customize airflow settings (50, 80, or 110 CFM) with a quick switch flip, ensuring optimal performance for any room size or ventilation need.
Engineered for hassle-free setup, the fan includes a single-hinged Flex-Z Fast® bracket, pre-installed alignment guides, and a temporary clip molded into its casing. These components work together to streamline installation in 2×6 joist systems or larger, reducing time spent on adjustments while guaranteeing a secure fit that minimizes air leakage during blower door tests. A standard 4” plastic adapter with backdraft damper further enhances air tightness (3” reducer included), making it ideal for drywall applications as an air barrier solution.
Compliance is built-in: this model meets critical standards like ASHRAE 62.2, LEED, IAP, and California Title 24, ensuring your project stays up-to-code without extra effort. The motor’s SmartFlow™ Technology dynamically adjusts output for consistent airflow efficiency while lowering energy costs over time.
Durability meets peace of mind with robust warranties: 6 years on the ECM motor, 5 years on LED panels, and 3 years on parts cover long-term performance reliability. UL listed for tub/shower enclosures when GFCI protected and compatible with Panasonic’s Ceiling Radiation Damper (PC-RD05C5), it’s a trusted choice for both residential and commercial projects prioritizing safety and sustainability.
Whether you’re replacing outdated fans or optimizing new builds for energy efficiency and code compliance, WhisperFit’s low-profile design (5-5/8” housing depth) and intuitive features deliver professional-grade results without complexity.
Key Features:
– Adjustable airflow via Pick-A-Flow™ selector
– Flex-Z Fast® bracket for rapid mounting
– Airtight metal flange reduces building envelope leakage
– SmartFlow™ ECM motor minimizes energy use
– Slide-and-snap junction box/duct collar for adaptability
– Meets ASHRAE 62.2 & LEED standards
– Includes 3” reducer for flexible ductwork integration
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