Overview
The Johnson Controls A19ACA-15C is a single-stage, remote bulb mechanical temperature control designed for HVAC/R applications. It utilizes an environmentally friendly liquid-filled sensing element and capillary to provide reliable temperature regulation, specifically engineered to open the circuit on a drop in temperature and require a manual reset.
Features
- Single-stage control with a manual reset function
- SPST switch action that opens on temperature drop (open low)
- Liquid-filled sensing element and capillary
- Screwdriver slot range adjuster for secure setpoint changes
- Durable NEMA 1 galvanized steel enclosure
Specifications
- Temperature Range: -30°F to 100°F (-34°C to 38°C)
- Switch Type: SPST (Open Low)
- Capillary Length: 10 feet
- Sensing Bulb Dimensions: 3/8 inch diameter by 4 inches length
- Maximum Bulb Temperature: 140°F (60°C)
- Electrical Voltage: 120/208/240 VAC
Applications
- Temperature control in commercial heating, ventilating, and air conditioning systems
- Refrigeration system temperature monitoring and control
- Low-temperature cutout and freeze protection applications requiring manual intervention to restart



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