Lennox 12P11 Collector Box
The Lennox 12P11 Collector Box (OEM #611899-01) is a critical 7-burner furnace component designed for high-efficiency 90% AFUE condensing gas furnaces. As a veteran-grade HVAC replacement part, this collector box is engineered to manage the transition of flue gases into the furnace inducer motor while facilitating the proper drainage of acidic condensate. Constructed from durable, corrosion-resistant materials, the 12P11 ensures a leak-proof seal at the secondary heat exchanger interface, preventing pressure switch trips and water damage to the furnace cabinet.
When performing a Lennox furnace repair, installing this genuine Lennox collector box is essential for maintaining factory-spec exhaust manifold performance. The unit features built-in ports for condensate trap connections and pressure switch hose attachment points, ensuring precise flue gas monitoring. Technicians should verify the integrity of the collector box gasket during installation to maintain the airtight vacuum required for the draft inducer to operate correctly across all heating cycles.
Key Benefits for Technicians- OEM Compatibility: Exact fit for Lennox 7-burner 90% AFUE condensing furnaces, eliminating the need for field modifications.
- Condensate Management: Optimized internal baffling directs liquid effluent toward the drain ports to prevent inducer housing flooding.
- System Reliability: Prevents common code 2 or 3 pressure switch lockouts by maintaining stable static pressure within the combustion circuit.
- Professional Construction: High-density composite material resists the corrosive effects of furnace condensate.
Why is water backing up in my Lennox collector box?
Water accumulation typically indicates a blockage in the condensate trap or an improperly pitched furnace. Ensure the unit is slightly sloped forward or toward the drain side as per Lennox installation manuals to facilitate gravity drainage.
Does this 12P11 include the mounting gaskets?
The 12P11 is the collector box housing; while some kits include the foam seal, technicians should always inspect the 611899-01 mating surface and use fresh high-temp RTV or OEM gaskets to ensure a 100% airtight seal during the collector box replacement.
Can a cracked collector box cause a pressure switch error?
Yes. Any hairline fracture in the collector box housing will bleed vacuum pressure, causing the furnace pressure switch to drop out and prevent the ignition sequence.
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.
Lennox 12P11 Collector Box
The Lennox 12P11 Collector Box (OEM #611899-01) is a critical 7-burner furnace component designed for high-efficiency 90% AFUE condensing gas furnaces. As a veteran-grade HVAC replacement part, this collector box is engineered to manage the transition of flue gases into the furnace inducer motor while facilitating the proper drainage of acidic condensate. Constructed from durable, corrosion-resistant materials, the 12P11 ensures a leak-proof seal at the secondary heat exchanger interface, preventing pressure switch trips and water damage to the furnace cabinet.
When performing a Lennox furnace repair, installing this genuine Lennox collector box is essential for maintaining factory-spec exhaust manifold performance. The unit features built-in ports for condensate trap connections and pressure switch hose attachment points, ensuring precise flue gas monitoring. Technicians should verify the integrity of the collector box gasket during installation to maintain the airtight vacuum required for the draft inducer to operate correctly across all heating cycles.
Key Benefits for Technicians- OEM Compatibility: Exact fit for Lennox 7-burner 90% AFUE condensing furnaces, eliminating the need for field modifications.
- Condensate Management: Optimized internal baffling directs liquid effluent toward the drain ports to prevent inducer housing flooding.
- System Reliability: Prevents common code 2 or 3 pressure switch lockouts by maintaining stable static pressure within the combustion circuit.
- Professional Construction: High-density composite material resists the corrosive effects of furnace condensate.
Why is water backing up in my Lennox collector box?
Water accumulation typically indicates a blockage in the condensate trap or an improperly pitched furnace. Ensure the unit is slightly sloped forward or toward the drain side as per Lennox installation manuals to facilitate gravity drainage.
Does this 12P11 include the mounting gaskets?
The 12P11 is the collector box housing; while some kits include the foam seal, technicians should always inspect the 611899-01 mating surface and use fresh high-temp RTV or OEM gaskets to ensure a 100% airtight seal during the collector box replacement.
Can a cracked collector box cause a pressure switch error?
Yes. Any hairline fracture in the collector box housing will bleed vacuum pressure, causing the furnace pressure switch to drop out and prevent the ignition sequence.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lennox 12P11 Collector Box (OEM #611899-01) is a critical 7-burner furnace component designed for high-efficiency 90% AFUE condensing gas furnaces. As a veteran-grade HVAC replacement part, this collector box is engineered to manage the transition of flue gases into the furnace inducer motor while facilitating the proper drainage of acidic condensate. Constructed from durable, corrosion-resistant materials, the 12P11 ensures a leak-proof seal at the secondary heat exchanger interface, preventing pressure switch trips and water damage to the furnace cabinet.
When performing a Lennox furnace repair, installing this genuine Lennox collector box is essential for maintaining factory-spec exhaust manifold performance. The unit features built-in ports for condensate trap connections and pressure switch hose attachment points, ensuring precise flue gas monitoring. Technicians should verify the integrity of the collector box gasket during installation to maintain the airtight vacuum required for the draft inducer to operate correctly across all heating cycles.
Key Benefits for Technicians- OEM Compatibility: Exact fit for Lennox 7-burner 90% AFUE condensing furnaces, eliminating the need for field modifications.
- Condensate Management: Optimized internal baffling directs liquid effluent toward the drain ports to prevent inducer housing flooding.
- System Reliability: Prevents common code 2 or 3 pressure switch lockouts by maintaining stable static pressure within the combustion circuit.
- Professional Construction: High-density composite material resists the corrosive effects of furnace condensate.
Why is water backing up in my Lennox collector box?
Water accumulation typically indicates a blockage in the condensate trap or an improperly pitched furnace. Ensure the unit is slightly sloped forward or toward the drain side as per Lennox installation manuals to facilitate gravity drainage.
Does this 12P11 include the mounting gaskets?
The 12P11 is the collector box housing; while some kits include the foam seal, technicians should always inspect the 611899-01 mating surface and use fresh high-temp RTV or OEM gaskets to ensure a 100% airtight seal during the collector box replacement.
Can a cracked collector box cause a pressure switch error?
Yes. Any hairline fracture in the collector box housing will bleed vacuum pressure, causing the furnace pressure switch to drop out and prevent the ignition sequence.
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.
