Use a multimeter to check for resistance (ohms) across the coil terminals

Durable Construction: Features a nickel-plated forged brass body and PTFE seats for extended service life in demanding hydronic environments

offering improved thermal resistance

Simplified Installation: Features SPDT contact arrangement and three screw top terminals with cup washers for secure electrical termination

where reliable HVAC part replacement is essential for maintaining equipment uptime

Johnson Controls A11A-1 Freezestat Els PW 17895 Use a multimeter to checkThe Johnson Controls A11A 1 is a robust low temperature cutout freezestat designed to provide failsafe protection for hydronic coils, cooling coils, and liquid handling pipes. Featuring a manual reset mechanism, this SPST open low control ensures that systems remain offline following a low limit event until a technician can verify field conditions. The unit utilizes a 20 foot vapor charged sensing element that triggers the internal snap acting