Carrier 343312-75103 Drain Pan

The Carrier 343312-75103 Vertical Condensate Drain Pan is a critical genuine OEM replacement part engineered for high-efficiency drainage in vertical air handling units and furnace coils. This specific HVAC drain pan is the direct replacement for 329512-708, ensuring seamless mechanical integration without the need for field modifications. Designed to withstand the rigorous thermal cycling and constant moisture exposure seen in residential and commercial split systems, it utilizes high-grade materials to prevent the structural degradation typically found in aftermarket alternatives. Proper installation of this Carrier condensate pan is essential for maintaining system integrity, preventing localized water damage, and ensuring the secondary drain line functions according to factory specifications. This replacement vertical drain pan provides the exact dimensions and port orientations required for optimal moisture management and leak prevention in tight mechanical closets and upright installations.

Key Benefits

• Direct Compatibility: Engineered specifically to replace part numbers 343312-75103 and 329512-708 in vertical configurations.
• OEM Precision: Ensures exact hole alignment for primary and secondary condensate line connections.
• Corrosion Resistance: Manufactured to resist biological growth and chemical buildup that can cause pan failure and blockages.
• System Protection: Functions as the primary defense against internal moisture damage to insulation and electrical components.

Common Questions

Is the Carrier 343312-75103 compatible with horizontal installations?
No, this specific part is designed for vertical-flow applications. For horizontal configurations, a different pan assembly is required to ensure proper pitch and drainage.

What was the original part number for this drain pan?
This unit is the manufacturer-specified replacement for the discontinued 329512-708 part number.

Are the drain ports pre-threaded?
Yes, the ports are designed to accept standard NPT fittings used in Carrier HVAC systems for secure, leak-proof drainage.

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.