Heat Controller 4202 TXV

The Heat Controller 4202 TXV is a high-performance 4 Ton Thermostatic Expansion Valve designed to maintain precise superheat for optimal evaporator efficiency in split system residential and commercial HVAC units. Engineered for use with heat pump and air conditioning systems, this metering device regulates refrigerant mass flow based on suction line temperature, protecting the compressor from liquid slugging and ensuring consistent BTU capacity during high-load conditions. The thermal expansion valve features a robust sensing bulb and a durable internal needle valve assembly that modulates flow to prevent hunting and evaporator freeze-ups. This OEM replacement part is critical for restoring system equilibrium, particularly in 4-ton cooling configurations where accurate pressure drops across the orifice are required for maximum EER and SEER performance. By maintaining the ideal refrigerant flow control, the 4202 ensures your coils operate at peak saturation levels without overfeeding the suction line.

• Precise Superheat Regulation: Maintains a constant superheat at the evaporator outlet, maximizing heat transfer and protecting the compressor.
• Broad Compatibility: Specifically designed for 4-ton HVAC units, making it a reliable choice for diverse split system applications.
• Improved System Efficiency: Enhances energy performance by ensuring the evaporator coil is always optimally filled with refrigerant.
• Durable Construction: Built to withstand high-pressure industrial and residential refrigeration environments without premature fatigue.

• Will this TXV work with both R-410A and R-22 systems? This valve is designed for specific refrigerant technical profiles; always verify the refrigerant type and pressure ratings of your 4-ton unit before installation to ensure the metering orifice is compatible.
• What are the signs of a failing 4-ton expansion valve? Common symptoms include low suction pressure, excessive evaporator icing, or fluctuating superheat readings known as "hunting," which can lead to compressor overheating.
• Can I install this on a 3-ton or 5-ton system? No. Using a TXV that is oversized or undersized for the system capacity will result in poor performance, inefficient cooling, and potential mechanical failure of the outdoor unit.

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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.