Resideo SDCR Relay 318518-761 The Resideo TH8321R1001 VisionPRO 8000

The Resideo TH8321R1001 VisionPRO 8000 is a versatile 7-day programmable thermostat engineered with RedLINK technology for robust wireless communication

For technicians prioritizing long-term reliability and precise airflow

Key Benefits for Technicians Concentric Clamping: Double-split barrel design provides a uniform 360-degree grip

Engineered for heavy-duty industrial and commercial applications

significantly reducing simmer and leakage near set point limits

Resideo SDCR Relay 318518-761 The Resideo TH8321R1001 VisionPRO 8000The Resideo SDCR Relay is an essential slave damper control relay designed for professional HVAC partitioning where existing zone panel contacts aren't sufficient to handle the total inductive load. This 4PDT relay (4 pole, double throw) lets a single zone output synchronize up to nine dampers, provided the secondary power supply is correctly sized. Built for high density HVAC zoning systems, the SDCR effectively manages multiple damper actuators like