Emerson Alco 049173 Filter Drier

The Emerson Alco 049173 (Model ASD45S7VV) is a high-capacity suction line filter drier engineered for critical compressor protection in systems using CFC, HCFC, and HFC refrigerants, including R410A. Featuring a 45 cubic inch compacted bead desiccant core, this unit is optimized for superior acid removal and moisture capture, making it a standard choice for compressor burnout clean-up and high-moisture recovery. The 7/8" sweat (ODF) solid copper connections allow for straightforward brazing, while the 40-micron filtration ensures that solid contaminants are trapped before entering the compressor's intake.

Designed for a 500 PSI max pressure, this premium suction line filter drier includes dual access valves (Schrader ports) on both the inlet and outlet. This configuration is essential for service technicians to monitor pressure drop across the drier, ensuring the system maintains peak flow without restriction. The rugged steel shell is finished with a corrosion-resistant epoxy powder paint to withstand harsh environmental conditions. When dealing with a saturated core or post-burnout recovery, the ASD series provides the reliability required to stabilize the chemical balance of the refrigerant oil and prevent premature component failure.

• Suction line filter drier
• Emerson ASD45S7VV
• 7/8 filter drier
• Compressor burnout filter
• HVAC refrigerant filter

• Dual Access Valves: Integrated ports allow for immediate pressure drop measurement to verify filter saturation levels.
• Compacted Bead Core: Specifically blended desiccant for maximum moisture and acid removal in contaminated systems.
• Solid Copper Fittings: 7/8" ODF connections ensure a reliable, leak-proof seal during the brazing process.
• Ultimate Protection: 40-micron filtration catches fine particulates that can score compressor valves and bearings.
• High Pressure Rating: Rated for up to 500 PSIG, suitable for R-410A and other high-pressure applications.

• When should I replace a suction line filter drier? You should monitor the pressure drop across the unit; if it exceeds the manufacturer’s specifications (typically 2-3 PSI for most AC applications), the core is likely saturated with contaminants and requires replacement.
• Is this model compatible with R-410A? Yes, the Emerson ASD45S7VV is rated for 500 PSI, making it fully compatible with R410A, R22, and other common HFC/HCFC blends.
• Can I use this for liquid line applications? No, this is a dedicated suction line filter. Using a suction-designed drier in the liquid line can cause internal flow issues and insufficient moisture removal for that stage of the cycle.

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.