Multi-Stage Performance: Supports 2-stage furnace operation for improved temperature control and equipment efficiency

It is critical to match the 1/8 HP and 810 RPM specifications exactly

GEN2 COMPRESSOR CONVERSION KIT S1-373-39504-005

Smith Custom Hi-Power units

As the direct updated replacement for the 033199-0539

Trane CNT3666 Pressure Switch 326058-756 Multi-Stage Performance: Supports 2-stage furnaceThe Trane CNT3666 Pressure Switch is a critical safety component engineered for precise draft monitoring in high efficiency HVAC systems. This single pole single throw (SPST) switch is factory calibrated to a 0. 15" WC set point, ensuring the inducer motor establishes a proper vacuum before allowing the ignition sequence to proceed. Designed as a direct OEM replacement pressure switch, it features a 1 4" barbed connection for secure pneumatic tubing