Heil Quaker ICP 1175516 TXV Valve

The Heil Quaker ICP 1175516 TXV Valve is a critical OEM R22 thermostatic expansion valve designed for precision refrigerant metering in 3.5 to 4-ton cooling systems. Engineered for high-demand HVACR applications, this externally equalized TXV maintains the optimal superheat balance to prevent compressor slugging and evaporator starvation. As a direct replacement part for International Comfort Products (ICP) brands including Tempstar, Comfortmaker, and Arcoaire, it features a factory-set static superheat of 7.2?F (4?K) and a bi-flow design suitable for heat pump or straight-cool air conditioning cycles. For technicians troubleshooting low suction pressure or erratic superheat, this ICP 1175516 expansion valve kit, manufactured by Danfoss (Model 067U3253), offers a maximum working pressure of 660 psig. Ensure the sensing bulb is securely mounted on a horizontal suction line and properly insulated to guarantee accurate thermal response and system efficiency during high-ambient operations.

• Optimized Efficiency: Precision R22 refrigerant flow control reduces energy consumption and maximizes heat transfer across the evaporator coil.
• OEM Compatibility: Specifically designed for ICP families, ensuring a perfect fit for 3.5 - 4 ton TXV requirements without field modifications.
• System Protection: Externally equalized port compensates for pressure drops, safeguarding the compressor from liquid floodback.
• Robust Construction: Built to withstand operating temperatures up to 212?F, providing long-term reliability in harsh mechanical environments.

How do I confirm if my TXV is failing?
Common indicators of a faulty Heil Quaker 1175516 include high superheat at the evaporator outlet, frost on the expansion valve body, or hunting suction pressures. Perform a bulb test by warming the sensing bulb in your hand to see if suction pressure increases.

Where should the sensing bulb be positioned?
The bulb must be mounted on the horizontal suction line, ideally at the 12 o?clock position for lines under 7/8" or at 4/8 o?clock for larger lines, to avoid false readings from oil pockets at the bottom of the pipe.

Is this valve compatible with R407C retrofits?
While originally designed as an R22 TXV valve, this Danfoss-manufactured component is often rated for R407C applications due to similar pressure-temperature relationships, though a lubricant change (to POE oil) is required during retrofitting.

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.