Engineered for reliability in demanding commercial environments

electromechanical switching component engineered for high-current management in HVAC heating circuits

With adjustable blower delay settings and a comprehensive wiring harness kit

but tightening to the manufacturer's torque spec prevents vibration-induced loosening

Versatile Connectivity: Air sample line connectors are designed to accept 1/8"

Resideo 198799Z Sensor Engineered for reliability in demandingThe Resideo 198799Z Sensor is a high precision NTC thermistor designed for demanding hydronic applications, providing reliable temperature feedback for outdoor reset or supply water monitoring. Engineered for seamless integration with Resideo AQ475, AQ675, and AQ775 Aquastat controllers, this sensor is technically identical to the 198799Z U model, ensuring a drop in replacement for existing HVAC systems. Featuring a 42 inch skinned and retained lead