Integrating this 6-tube heat exchanger restores your system's heat range and prevents common issues like carbon monoxide leakage or nuisance limit switch tripping caused by restricted airflow and overheating

making it a reliable choice for Carrier

This specific model features a 1/2" NPT inlet and a 3/8" NPT outlet

This particular kit—identified by Part Number 007158F and often cross-referenced as 500-100-Kit or IS20360-5458—is a direct replacement for failing differential pressure sensors that cause common ignition lockout codes

Lennox 10B85 Module Kit 323055-751 Integrating this 6-tube heat exchangerThe Lennox 10B85 Module Kit (OEM Part #610587 18) is a critical HVAC control board replacement designed to maintain the sequence of operation in high efficiency residential and light commercial equipment. As the direct replacement for Lennox 84W15, this kit ensures full backward compatibility and seamless integration with existing wiring harnesses. For technicians troubleshooting intermittent ignition failures or communication errors, installing a