Carrier 311213-404 Collector Box

The Carrier 311213-404 Collector Box is a critical OEM replacement part designed for 90% condensing furnaces. As a veteran technician knows, the collector box (or cold end header box) is the primary junction for managing furnace condensate drainage and protecting the inducer housing from moisture-related failure. This specific factory authorized part is engineered to meet the exact pressure differentials required by Carrier and Bryant furnaces, ensuring that the pressure switch can accurately monitor the inducer assembly's performance. Constructed from high-stability polymers, this condensate collector box resists the acidic nature of furnace runoff, preventing the common leaks often seen with aging or warped after-market equivalents. When performing a furnace repair, using this genuine Carrier furnace part ensures a perfect fit with the existing collector box gaskets, maintaining the airtight seal necessary for safe combustion and efficient venting. Replacing a cracked or leaking 311213-404 is essential for preventing water damage to the secondary heat exchanger and the furnace control board below.

• OEM Compatibility: Engineered specifically for Carrier and Bryant 90% efficiency gas furnaces, ensuring precise fitment and system integrity.
• Condensate Management: Provides a centralized collection point for combustion moisture, facilitating proper drainage and preventing inducer motor flooding.
• Durable Polymer Construction: Designed to withstand the thermal stress and acidic environment of a condensing heating cycle without warping.
• System Reliability: Restores proper pressure readings to the safety switches, preventing intermittent furnace lockouts and "no-heat" service calls.

Common Questions

Is the gasket included with the Carrier 311213-404 collector box?
Technicians should verify current stock packaging, but it is industry standard to inspect and replace the collector box gasket whenever this assembly is disturbed to ensure a leak-proof seal against the heat exchanger plate.

What are the signs of a failing collector box?
Look for visible water staining near the inducer, moisture dripping onto the furnace floor, or pressure switch codes (usually 31 or 32 on newer models) caused by a cracked housing or blocked drainage ports.

Can I use high-temp silicone if the box is cracked?
Patching a condensing furnace collector box with silicone is not a permanent solution for professional contractors. A replacement 311213-404 is required to ensure the structural integrity and safety of the combustion system.

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.