Carrier 343314-75103 Condensate Pan

As a field tech, you know that a cracked or corroded horizontal condensate pan can lead to an immediate service call for water damage. This Carrier 343314-75103 is the precise OEM replacement part designed to restore the integrity of the drainage system in horizontal furnace or air handler applications. Explicitly engineered as the direct successor to the discontinued 321894-708, it also serves as a drop-in FAP (Factory Authorized Part) replacement for older versions like 342023-705 and 321894-408. Constructed from a high-grade durable polymer, this pan is built to resist the standing water and microbial growth that often plague inferior aftermarket alternatives. The 22-5/8" x 25-1/2" footprint ensures a perfect fit under the evaporator coil, maintaining the critical pitch required for gravity-fed drainage through the 3/4" connection. When dealing with attic installs or crawlspace units, using this genuine Carrier condensate pan kit is the only way to ensure HVAC system compatibility and eliminate the risk of bypass leaks that trigger float switches and cause nuisance shutdowns.

• Factory Precision: Engineered as a direct OEM replacement part for model numbers 342023-705, 321894-408, and the legacy 321894-708.
• Corrosion Resistance: High-density composition replaces older metal pans that were prone to rust and pitting.
• Technical Specifications: Measures 25 inches in length by 28.25 inches in width (including flanges) with a 4.5-inch depth for maximum water retention during high-humidity cycles.
• Optimized Drainage: Features a notched design for seamless HVAC condensate management and integrates with standard 3/4" drain lines.

Is this pan compatible with Payne or Bryant units?
Yes. As a Factory Authorized Part (FAP), this pan is designed for use across the Carrier family of brands, including Bryant and Payne horizontal evaporator coils, provided the part number matches your technical manual.

What causes a horizontal pan to fail prematurely?
Most failures are caused by improper leveling during installation, which leads to standing water. This stagnant moisture can accelerate mineral buildup or compromise the pan material over several seasons of heavy cooling demand.

Do I need a secondary emergency pan if I install this kit?
While this is the primary condensate drain pan located within the cabinet, industry best practices and local codes typically require a secondary emergency pan and float switch for any horizontal installation located above finished ceilings.

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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.