Lennox 17F56 Cold Header Box
The Lennox 17F56 Cold Header Box is a critical OEM component designed for high-efficiency refrigerant distribution within Lennox evaporator and condenser coil assemblies. As a veteran technician knows, maintaining balanced thermal loading across multi-circuit coils is essential for preventing localized freezing and ensuring the compressor operates within its designed superheat range. This HVAC cold header box serves as the primary manifold, routing low-temperature refrigerant precisely to manage the heat exchange process across the entire fin-and-tube surface area.
Engineering-grade construction ensures this Lennox 17F56 handles the rigorous pressure fluctuations of modern R-410A systems without fatigue. By eliminating uneven distribution, this part prevents common performance bottlenecks like compressor liquid slugging or reduced sensible cooling capacity. This replacement cold header box is an exact-fit Lennox 619598-51 kit, specifically used in the EL296 series and related high-performance units. Replacing a compromised header box restores HVAC coil refrigerant distribution to factory specifications, protecting the system from efficiency loss and erratic pressure switch trips.
- Optimized Refrigerant Flow: Ensures uniform feeding into all coil circuits to maximize heat transfer efficiency.
- Prevents Coil Frosting: Eliminates distribution imbalances that lead to localized ice buildup and airflow restriction.
- Direct OEM Replacement: Guaranteed fit for EL296 series units, featuring pre-configured ports for pressure switch tubing and condensate drain trap alignment.
- System Longevity: Protects the compressor from liquid floodback by maintaining consistent evaporator exit temperatures.
- Durable Construction: Built to withstand commercial-grade vibration and thermal cycling in extreme environments.
Common Questions:
What are the symptoms of a failing cold header box?
Technicians typically observe uneven frost patterns on the evaporator coil, high suction pressure with low cooling output, or frequent low-pressure switch trips despite a correct refrigerant charge.
Is this part compatible with non-Lennox systems?
No. This is a genuine Lennox 17F56 component designed specifically for Lennox chassis and coil geometries. Modifications for third-party compatibility are not recommended as they disrupt factory-calibrated flow rates.
Does this kit include the pressure switch?
This kit is for the cold end header box assembly. While it features the necessary integral mounting tabs and ports for pressure switches, those controls must be transferred from the existing unit or purchased separately if they are also defective.
This item is not eligible for free shipping.
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.
Original: $122.37
-65%$122.37
$42.83Lennox 17F56 Cold Header Box
The Lennox 17F56 Cold Header Box is a critical OEM component designed for high-efficiency refrigerant distribution within Lennox evaporator and condenser coil assemblies. As a veteran technician knows, maintaining balanced thermal loading across multi-circuit coils is essential for preventing localized freezing and ensuring the compressor operates within its designed superheat range. This HVAC cold header box serves as the primary manifold, routing low-temperature refrigerant precisely to manage the heat exchange process across the entire fin-and-tube surface area.
Engineering-grade construction ensures this Lennox 17F56 handles the rigorous pressure fluctuations of modern R-410A systems without fatigue. By eliminating uneven distribution, this part prevents common performance bottlenecks like compressor liquid slugging or reduced sensible cooling capacity. This replacement cold header box is an exact-fit Lennox 619598-51 kit, specifically used in the EL296 series and related high-performance units. Replacing a compromised header box restores HVAC coil refrigerant distribution to factory specifications, protecting the system from efficiency loss and erratic pressure switch trips.
- Optimized Refrigerant Flow: Ensures uniform feeding into all coil circuits to maximize heat transfer efficiency.
- Prevents Coil Frosting: Eliminates distribution imbalances that lead to localized ice buildup and airflow restriction.
- Direct OEM Replacement: Guaranteed fit for EL296 series units, featuring pre-configured ports for pressure switch tubing and condensate drain trap alignment.
- System Longevity: Protects the compressor from liquid floodback by maintaining consistent evaporator exit temperatures.
- Durable Construction: Built to withstand commercial-grade vibration and thermal cycling in extreme environments.
Common Questions:
What are the symptoms of a failing cold header box?
Technicians typically observe uneven frost patterns on the evaporator coil, high suction pressure with low cooling output, or frequent low-pressure switch trips despite a correct refrigerant charge.
Is this part compatible with non-Lennox systems?
No. This is a genuine Lennox 17F56 component designed specifically for Lennox chassis and coil geometries. Modifications for third-party compatibility are not recommended as they disrupt factory-calibrated flow rates.
Does this kit include the pressure switch?
This kit is for the cold end header box assembly. While it features the necessary integral mounting tabs and ports for pressure switches, those controls must be transferred from the existing unit or purchased separately if they are also defective.
This item is not eligible for free shipping.
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.
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Description
The Lennox 17F56 Cold Header Box is a critical OEM component designed for high-efficiency refrigerant distribution within Lennox evaporator and condenser coil assemblies. As a veteran technician knows, maintaining balanced thermal loading across multi-circuit coils is essential for preventing localized freezing and ensuring the compressor operates within its designed superheat range. This HVAC cold header box serves as the primary manifold, routing low-temperature refrigerant precisely to manage the heat exchange process across the entire fin-and-tube surface area.
Engineering-grade construction ensures this Lennox 17F56 handles the rigorous pressure fluctuations of modern R-410A systems without fatigue. By eliminating uneven distribution, this part prevents common performance bottlenecks like compressor liquid slugging or reduced sensible cooling capacity. This replacement cold header box is an exact-fit Lennox 619598-51 kit, specifically used in the EL296 series and related high-performance units. Replacing a compromised header box restores HVAC coil refrigerant distribution to factory specifications, protecting the system from efficiency loss and erratic pressure switch trips.
- Optimized Refrigerant Flow: Ensures uniform feeding into all coil circuits to maximize heat transfer efficiency.
- Prevents Coil Frosting: Eliminates distribution imbalances that lead to localized ice buildup and airflow restriction.
- Direct OEM Replacement: Guaranteed fit for EL296 series units, featuring pre-configured ports for pressure switch tubing and condensate drain trap alignment.
- System Longevity: Protects the compressor from liquid floodback by maintaining consistent evaporator exit temperatures.
- Durable Construction: Built to withstand commercial-grade vibration and thermal cycling in extreme environments.
Common Questions:
What are the symptoms of a failing cold header box?
Technicians typically observe uneven frost patterns on the evaporator coil, high suction pressure with low cooling output, or frequent low-pressure switch trips despite a correct refrigerant charge.
Is this part compatible with non-Lennox systems?
No. This is a genuine Lennox 17F56 component designed specifically for Lennox chassis and coil geometries. Modifications for third-party compatibility are not recommended as they disrupt factory-calibrated flow rates.
Does this kit include the pressure switch?
This kit is for the cold end header box assembly. While it features the necessary integral mounting tabs and ports for pressure switches, those controls must be transferred from the existing unit or purchased separately if they are also defective.
This item is not eligible for free shipping.
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.
