This 3-cell heat exchanger is designed for specific BTU-rated units

This industrial-grade Parker-Watts R35 series unit manages a maximum inlet pressure of 300 PSI

Adjusting this screw limits the blade travel when closed

this electromagnetic relay ensures precise switching and prevents compressor overheating or "clicking" failures caused by degraded contacts

Versatile Media Handling: Buna-N seals offer excellent resilience against standard oils

Nordyne 689589R Gasket 320074-702 This 3-cell heat exchanger isThe Nordyne 689589R Gasket is the engineered OEM successor to the legacy Nordyne 689589, designed specifically for high performance sealing within residential and light commercial HVAC systems. As a critical furnace replacement part, this HVAC blower gasket provides a robust airtight seal between the burner assembly and the heat exchanger, preventing combustion gas leakage and maintaining optimal static pressure. Manufactured to meet exact Nortek