When you're out in the field dealing with a sluggish Carrier R-22 system, the Carrier EA02DZ492 TXV Valve is the specific OEM replacement part required to restore precise refrigerant metering. This thermostatic expansion valve (TXV) is engineered for R-22 refrigerant applications, commonly found in older Carrier, Bryant, and Payne air handlers and package units. The EA02DZ492 features a solder connection (ODF) for a reliable, leak-free seal and an external equalizer line to maintain the correct superheat under varying load conditions. For technicians, the compact bi-metal construction makes it manageable in tight cabinets, though you’ll want a wet rag or heat sink putty to protect the internal diaphragm during the brazing process. This metering device ensures the evaporator coil stays saturated without liquid slugging the compressor, preserving the cooling performance and HVAC system efficiency of legacy equipment. This is a Factory Authorized Part designed to meet original equipment specifications for internal flow rates and pressure drops.

• Precise Superheat Control: Maintains optimal refrigerant flow to prevent compressor damage and liquid floodback.
• Genuine OEM Reliability: Matches the exact technical specifications and tonnage requirements of Carrier-built systems like the PF1 series.
• Durable Construction: High-grade bi-metal design stands up to high-pressure environments and thermal cycling.
• Optimized Efficiency: Restores factory-standard cooling capacity and reduces energy consumption in older R-22 HVAC units.
• External Equalization: Compensates for pressure drops across the coil to provide more accurate sensing at the suction line.

What tonnage is the EA02DZ492 rated for?
This specific TXV valve is typically utilized in residential and light commercial tonnage applications; however, you must verify the orifice size against your specific model's parts list to ensure a match for your 1.5 to 5-ton coil.

Can I use this valve with R-410A refrigerant?
No, this part is specifically calibrated for R-22 refrigerant. Using it with R-410A will lead to incorrect superheat settings and potential system failure due to different pressure-temperature relationships.

Is this a "bleed" or "non-bleed" type valve?
The EA02DZ492 is a standard hard-shutoff thermostatic expansion valve. In some older Carrier installations, a hard-start kit may be required if the compressor has difficulty starting against the pressure differential after a shutdown.

Item is Non Cancelable / Non Returnable

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.