The Honeywell/Resideo PA404A1025 Pressuretrol Controller is a high-performance, pressure-actuated safety control designed for steam heating boilers. It ensures safe operation by breaking the electrical circuit to shut down the burner if steam pressure rises above a preset level. This controller is ideal for maintaining optimal pressure levels and preventing system overpressure situations.
Features:
- The PA404A Is A Pressure Actuated High Limit, Safety Control For Steam Heating Boilers. It Breaks An Electrical Circuit To Shut Down The Burner If Steam Pressure Rises Above A Safe Level
- Contains An SPST MICRO SWITCH Snap-Acting Switch
- Sensitive Pressure-Actuated Diaphragm Expands Or Contracts With Pressure Variations, Moving A Lever Mechanism Which Operates The Snap Switch
- A Screw On Top Of The Case Allows Set Point Adjustment Without Removing The Cover
- Differential Is Adjusted By Means Of A Dial Located Inside The Case
- For Use In 24, 120, 240 Or 277 Volt Control Circuits Or In Self Powered (Millivoltage) Applications
