the vent limiter can be removed if the application requires external venting or if local codes do not allow for vent-limiting devices on high-capacity regulators

This unit provides a standard 1-11/16 inch (43 mm) stroke

this unit provides versatile control for up to two independent circuits

suitable for high-rise and industrial hydronic systems

Lennox Y0393 Power Supply 318423-701 the vent limiter can beThe Lennox Y0393 is a specialized 24V UVC power supply ballast engineered to provide stable, flicker free energy to Healthy Climate UV germicidal lamps. As a critical component in ultraviolet germicidal irradiation (UVGI) systems, this ballast converts line voltage into the precise electrical output required to drive Lennox UVC 24V air purification units. Designed for heavy duty operational stability, the Y0393 ballast regulates the current flow