Carrier 311213-405 Collector Box

The Carrier 311213-405 Collector Box is a critical OEM component designed for high-efficiency condensing furnaces. As an essential part of the heat exchanger assembly, this collector box is engineered to manage the transition of flue gases and ensure proper condensate drainage from the secondary heat exchanger. Constructed from durable, heat-resistant plastic, it maintains the airtight seal necessary for the induced combustion process, preventing hazardous exhaust leaks and pressure switch trip-outs. Measuring approximately 21-1/4 inches by 4-3/4 inches, this Carrier 311213-405 replacement is the direct successor to legacy part numbers 308090-405 and 308570-304. For technicians troubleshooting furnace water leaks or secondary heat exchanger clogging, replacing a cracked or warped collector box is vital for restoring system static pressure and overall thermal efficiency. This genuine furnace collector box ensures exact fitment for Carrier, Bryant, and Payne units, eliminating the clearance issues often found with universal aftermarket alternatives.

Key Benefits

• Direct OEM Compatibility: Specifically engineered for Carrier, Bryant, and Payne condensing furnaces, ensuring a seamless fit with the secondary heat exchanger.
• Enhanced Condensate Management: Prevents moisture backup and furnace drainage issues that lead to premature component corrosion.
• Maintains System Pressure: Ensures the pressure switch receives accurate vacuum signals for reliable inducer motor operation.
• Durable Construction: High-grade plastic housing resists common HVAC thermal stress and chemical degradation from acidic condensate.

Common Questions

Technicians usually identify a failing Carrier 311213-405 Collector Box through visible hairline cracks, water pooling at the base of the furnace, or consistent pressure switch fault codes that indicate an air leak in the combustion circuit.

While the collector box is the primary assembly, professional installations often require a new collector box gasket or high-temp RTV silicone to ensure an airtight seal against the heat exchanger panel.

Yes, if the internal baffles are restricted or if an air leak is preventing the induced-draft motor from closing the pressure switch, replacing the collector box can resolve ignition lockout and short-cycling issues.

Note: This item is Non-Cancelable / Non-Returnable.

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.