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Safety switches must match the manufacturer's specified temperature rating (280F for this model) to ensure the system reacts correctly to flue gas backup
the diaphragms must be mounted in a vertical plane
Key Benefits for Contractors: Universal Coil Compatibility: Operates on 24VAC/DC or 208-277VAC
The open on rise (normally closed) contact configuration ensures the circuit breaks when the temperature reaches the calibrated limit
Quiet Performance: Optimized for low-vibration operation in customer-facing display cases and quiet walk-ins
Johnson Controls A19QSC-1 Temperature Control 30067439-890 Safety switches must match theThe Johnson Controls A19QSC 1 is a commercial grade, remote bulb temperature control designed for demanding environments. This mechanical temperature control features a single pole, double throw (SPDT) switch configuration, providing versatile heating and cooling application support. Built with a NEMA 4X watertight enclosure, the A19QSC 1 offers superior protection against corrosion and moisture, making it ideal for cooling tower sump heaters and