Heil Quaker ICP 1066490 TXV

The Heil Quaker ICP 1066490 TXV is a critical 4-ton thermostatic expansion valve designed for precision refrigerant metering in high-capacity HVAC systems. Engineered specifically for R-22 refrigerant applications, this OEM component maintains optimal evaporator superheat by modulating flow based on load conditions. Featuring a 3/8" x 1/2" ODF (Outside Diameter Female) sweat connection, it ensures a secure, leak-resistant fit on the liquid and distributor lines. The integrated 39" capillary tube provides the necessary reach for flexible bulb mounting on the suction line, allowing for accurate temperature sensing and stable system performance. As a non-bleed thermal expansion valve, it effectively prevents liquid migration to the compressor during the off-cycle, protecting vital system components from premature wear. For technicians servicing Heil, Quaker, or Tempstar units, using this HVAC expansion valve replacement ensures the system operates within original manufacturing tolerances for efficiency and capacity.

Key Benefits

• Precision Superheat Control: Maintains exact refrigerant flow to maximize evaporator efficiency.
• OEM Compatibility: Authentic ICP 1066490 part ensures drop-in fit for specific Heil and Quaker 4-ton systems.
• Durable Brass Construction: Rated for high-pressure environments up to 600 PSI for long-term field reliability.
• System Protection: Non-bleed design prevents slugging and compressor damage during startups.
• Extended Reach: The 39-inch capillary allows for professional-grade bulb placement on larger coil cabinets.

Common Questions

Is this TXV compatible with R-410A systems?
No, this specific model is calibrated for R-22 refrigerant. Using it with R-410A will lead to incorrect metering and potential system failure.

What is the connection type for the ICP 1066490?
It utilizes a 3/8" x 1/2" ODF sweat connection, requiring standard brazing techniques for installation.

Does this valve include the sensing bulb strap?
Standard installations usually require a separate copper strap or stainless steel clamp to ensure the bulb has proper thermal contact with the suction line.

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.