Emerson 049169 Filter Drier

As a specialist in high-performance HVACR filtration, the Emerson 049169 Filter Drier (Model ASD-28S4-VV / ASD28S4W) is engineered for practitioners who prioritize superior compressor protection and system reliability. This premium suction line filter drier features a 28 cubic inch high-capacity desiccant core specifically optimized for the rigorous removal of moisture, acid, and solid contaminants that can lead to premature compressor failure. Designed for versatility, this unit is fully compatible with CFC, HCFC, and HFC refrigerants, making it a critical component for both maintenance and burnout cleanup applications in residential and commercial cooling systems.

The ASD-28S4-VV utilizes 1/2" sweat (ODF) solid copper connections to ensure leak-proof integration into the suction line of your refrigeration circuit. Its robust construction supports a 500 PSI maximum working pressure and is finished with a corrosion-resistant epoxy powder paint. For efficient field diagnostics, the inclusion of dual access valves allows technicians to take precise pressure drop readings across the 40-micron filtration bed. Whether you are performing a routine HVAC filter drier replacement or stabilizing a system after a component swap, the Emerson 049169 provides the professional-grade filtration required to maintain optimal refrigerant chemistry and prevent system contamination.

• High Acid & Moisture Capacity: The 28 cubic inch desiccant core protects internal components from corrosive acids and ice formation.
• Precision Filtration: Captures 40-micron particles to prevent debris from reaching the compressor's suction intake.
• Serviceability: Integrated dual access valves allow for real-time monitoring of pressure differentials without additional T-fittings.
• Durable Construction: Solid copper connections and epoxy-coated shell designed for longevity in high-vibration environments.
• Wide Compatibility: Suitable for all common synthetic and mineral-based refrigerants, including R-22, R-134a, and R-410A.

What is the difference between the 049169 and ASD-28S4-VV?
The Emerson 049169 is the technical part number, which is identical in specification and application to the ASD-28S4-VV and ASD28S4W models.

Can this filter drier be used on the liquid line?
No, this unit is specifically designed for suction line applications where high-flow, low-pressure drop, and high contaminant capacity are required for compressor safety.

Does this model feature a bypass for reverse cycle operation?
The ASD series is a standard suction line drier; for heat pump applications requiring reverse flow, verify the specific flow requirements or use a dedicated bi-flow drier on the liquid line if necessary.

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.