York 025-35787-010 LTC Sensor 30067439-890 What is the difference between

What is the difference between the 14004213-001 and the 14004213-001/U

this 24V operator is a standard for contractors managing floor heating and radiator applications

the 680 PSIG rating meets the requirements for high-pressure R410A liquid lines

Chemical Compatibility: Optimized for use with HFC and HCFC refrigerants

vibration-resistant fit inside the immersion well

York 025-35787-010 LTC Sensor 30067439-890 What is the difference betweenThe York 025 35787 010 LTC Sensor is a critical low temperature cutout sensor engineered to safeguard HVAC coils and hydronic systems from catastrophic freeze up conditions. This SPST (Single Pole Single Throw) normally closed safety switch operates within a precise 35F to 45F temperature range, providing an essential line of defense for commercial air handlers and rooftop units. When the sensing element detects temperatures approaching the setpoint,