Reduced Service Callbacks: High-grade silver alloy contacts prevent pitting and sticking

Can the FH21 be used in 3-phase applications

Key Benefits Factory-Calibrated Precision: Features a fixed 200°F trip point specifically tuned for Trane burner assemblies to prevent false tripping while maintaining safety

providing a reliable thermal connection when seated in a compatible brass thermowell (sold separately)

and NMQ series actuators

Resideo UV100E2009 System 326058-755 Reduced Service Callbacks: High-grade silverAs a seasoned technician, I recommend the Resideo UV100E2009 System for contractors looking to provide high efficiency UV air treatment in residential return air ducts. This dual lamp UV system utilizes two 36 watt lamps (72W total) to maximize the intensity of UV C energy, specifically engineered to reduce airborne bacteria and neutralize surface mold. Unlike many entry level units, this model features SmartLamp control technology, which employs an