Common Questions What Fenwal series modules is the 05-129927-224 harness compatible with

vibration-resistant connection

Rapid Deployment: Standardized mounting holes allow for direct installation onto Williams heating units

Full Standard Compliance: Meets ASME B16

Key Benefits High-Precision Cutoff: Opens exactly at 218°F (104°C) to prevent terminal equipment failure during a rollout or overheating event

A.J. Antunes 8021204002 Pressure Switch Els PW 17895 Common Questions What Fenwal seriesThe A. J. Antunes 8021204002 Pressure Switch (Model SMD) is a field proven SPDT air differential pressure switch engineered for precision monitoring in commercial HVAC systems and industrial air handling units. This switch operates across a 0. 17" to 6" W. C. pressure range, allowing technicians to accurately calibrate set points for proof of flow, filter monitoring, or fan status verification. Designed with 1 4" compression fitting connections, it