Rheem-Ruud 61-41636-01 Expansion Valve

The Rheem-Ruud 61-41636-01 is a high-performance thermal expansion valve (TXV) designed specifically for 4-ton heat pump applications. This externally equalized valve, part of the Emerson AAE series (Model AAE 4 HCA 30IN 1/2 x 1/2 ODF S/T), is engineered to manage refrigerant flow with precision across varying load conditions. Featuring a 1/2" x 1/2" ODF sweat connection and a straight body configuration, it integrates seamlessly into the liquid line. The 30-inch capillary tube provides the necessary reach for sensing bulb placement on the suction line, ensuring accurate superheat control for R-22 and R-407C systems. Built with a stainless steel power element, this adjustable TXV resists corrosion and prevents bellows failure in harsh HVACR environments. For technicians performing a Rheem AC expansion valve replacement, this OEM component ensures the system maintains peak evaporator efficiency and compressor protection during both heating and cooling cycles.

• Precise Refrigerant Metering: Optimized for 4-ton residential and light commercial heat pumps.
• Broad Compatibility: Rated for use with R22 and R407C refrigerants.
• Durable Construction: Features a straight body and sweat connections for leak-free, long-term service.
• External Equalization: Compensates for pressure drops across the evaporator to maintain stable superheat.
• Heat Pump Charge: Specifically calibrated for the reversing cycles of heat pump systems.

What are the symptoms of a failing Rheem 61-41636-01 expansion valve?
Common indicators include improper evaporator superheat, liquid slugging back to the compressor, or the system "hunting" for stable pressures. If you notice frost on the evaporator or high head pressures, the valve may be stuck or the sensing bulb may have lost its charge.

Can I use this TXV on a 3.5-ton system?
While some valves have a slight operating range, it is recommended to match the 4-ton capacity precisely to the evaporator coil's rating to ensure proper oil return and prevent floodback.

Is the superheat adjustable on this model?
Yes, the AAE series valves typically feature an adjustment screw, allowing technicians to fine-tune the superheat to meet specific site requirements or manufacturer technical data.

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.