Carrier 48TJ660004 Heat Exchanger 322057-301 you must not cut the

you must not cut the R18 resistor or the JW1 jumper

Designed to replace aging or failed Trane furnace pressure switches

For high-performance building automation and industrial control circuits

you know that managing pulsation and acoustic resonance in the discharge line is critical for long-term compressor health

it eliminates the balancing issues and vibration common with universal alternatives

Carrier 48TJ660004 Heat Exchanger 322057-301 you must not cut theThe Carrier 48TJ660004 Heat Exchanger is an OEM replacement heat exchanger engineered specifically for Carrier 48TJ series rooftop units. Constructed from high grade aluminized steel, this assembly is designed to withstand the thermal stress and condensed moisture typical in high demand commercial HVAC systems. It serves as a critical component in maintaining factory spec gas heating efficiency and ensuring safe combustion byproduct venting. Proper