Lochinvar & A.O. Smith 100277718 Condensate Trap

The Lochinvar & A.O. Smith 100277718 Condensate Trap is a critical OEM replacement component engineered for high-efficiency condensing boilers and water heaters. As a veteran technician knows, maintaining the integrity of the condensate management system is vital to prevent acidic effluent from backing up into the heat exchanger, which can lead to premature boiler scale and system lockout. This specific trap assembly is designed for units produced prior to serial #1741 and features an integrated reservoir that effectively isolates flue gases while allowing liquid waste to exit the system. Utilizing a genuine Lochinvar 100277718 ensures the correct float switch assembly alignment and port dimensions required for a leak-free seal. Whether you are performing annual maintenance or troubleshooting a "failed to ignite" code caused by a blocked drain, this high-efficiency condensate trap provides the precise flow rate and pressure differential handling necessary for commercial and residential hydronic heating equipment.

Key Benefits

• Optimized Drainage: Prevents condensate backup into the combustion chamber, protecting sensitive internal components from corrosion.
• System Safety: Effectively blocks the escape of combustion gases into the mechanical room through the drain line.
• OEM Compatibility: Precision-molded for a perfect fit on Knight FBL, FBN, and FTX models, eliminating the need for field modifications.
• Debris Management: Designed to capture sediment and particulates before they enter the external drainage system.

Common Questions

• How do I know if my trap needs replacement? Look for signs of sediment build-up, cracked plastic housings, or intermittent float switch errors that prevent the burner from firing.
• Is this trap compatible with newer Lochinvar models? No, this part is specifically for units manufactured prior to serial number 1741. Units manufactured after this point require a different part number.
• Does it include the float switch? This assembly is typically supplied with the integrated float switch to monitor water levels within the reservoir.

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.