The ZoneFirst ZPS Zone Plenum Sensor is a critical duct-mounted sensor designed for accurate supply air temperature monitoring in both residential and commercial HVAC zoning systems

Common Industrial Questions What is the primary application for the "Open Low" configuration

As a universal service replacement

Key Benefits: High-Capacity Switching: Rated for 25A at 277VAC (non-inductive) to handle significant electrical loads or motor starts

eliminating the need for separate relay mounts and long wire runs

ASCO 304-359 Rebuild Kit Refrigerant The ZoneFirst ZPS Zone PlenumThe ASCO 304 359 Rebuild Kit is a specialized professional maintenance solution for Asco 8210 series solenoid valves, specifically the 8210G100 and EF8210G100 models. As a critical component for maintaining high performance HVAC and plumbing systems, this kit ensures the internal integrity of your electrically actuated flow control valves. Each kit includes a comprehensive set of factory specification parts: a valve bonnet, solenoid base assembly,