This high-volume safety valve features all-bronze construction with an ASTM B584 grade body and a corrosion-resistant rust-proof steel spring

As a critical component in the combustion sequence

The backlit blue display can be set to continuous mode if the thermostat is hardwired with a "C" wire

preventing short-cycling and maintaining flame stability under varying load conditions

Diagnostic Capabilities: On-board LEDs allow for rapid troubleshooting of power and signal faults in the field

IO Hvac Controls iO-WW1 Alarm System 319825-402 This high-volume safety valve featuresThe iO WW1 Warning Watchdog is a professional grade condensing unit alarm system designed for veteran HVACR contractors to safeguard outdoor assets against theft, vandalism, and refrigerant discharge. This hardwired logic panel provides a comprehensive security solution by monitoring the physical and electrical integrity of the system. The iO WW1 kit includes a hardwired logic panel, iO WWPS power supply (12V DC), iO WWS siren (118dB output), iO