Carrier 48CH660001 Upgrade Kit

The Carrier 48CH660001 Flame Rectification Upgrade Kit is a critical field-installable solution designed to modernize legacy Carrier rooftop units (RTUs). This kit facilitates the conversion from obsolete mercury-based flame sensors to a reliable flame rectification system, ensuring precise signal monitoring and enhanced safety for gas-fired heating sections. Over time, original mercury sensors fail or lose sensitivity, leading to intermittent ignition failures and nuisance lockouts. By integrating this OEM upgrade kit, technicians can restore consistent burner operation and improve the unit's response to flame instability.

This comprehensive flame sensor conversion kit is engineered for a broad range of 3 to 8-1/2 ton rooftops manufactured prior to November 1986. It is compatible with natural gas configurations on models including the 48LDT, 48HDT, 48HD, 48LH, 48HH, 48LD, 48HV, 48HZ, 48LV, and 48LZ series. The kit includes a replacement burner support plate, mounting brackets, electrodes, and a new ignition module to ensure the pilot and main burner assemblies utilize modern DC microamp sensing. This upgrade is essential for contractors maintaining aging commercial assets where genuine Carrier replacement parts are required to meet original factory specifications for HVAC flame detection.

• Eliminates Mercury Sensors: Replaces hazardous and unreliable mercury bulbs with high-precision flame rectification technology.
• Reduces Nuisance Lockouts: Provides a stable DC signal to the ignition control module, preventing premature gas valve closure.
• OEM Compatibility: Specifically designed as a Carrier upgrade kit to fit existing burner footprints without extensive manifold modifications.
• Enhanced Safety: Rapidly detects flame loss to safely interrupt the gas supply and prevent hazardous accumulation.
• Service Longevity: Modernizes the ignition sequence to current industry standards, extending the useful life of the RTU heating section.

• Which RTU models are compatible with this rework kit? This kit is designed for 3 to 8-1/2 ton units, specifically 48H/L series models produced before November 1986, including 48LDT005 and 48HDT006.
• Can this kit be used for LP gas applications? This specific kit is intended for natural gas. For liquid propane (LP) conversions, a separate, specific LP kit must be used in conjunction with this flame rectification assembly.
• What does the kit include for the ignition sequence? It typically includes the burner support plate, ignitor/sensor electrodes, mounting brackets, clips, and the necessary ignition control pack.

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.