Overview
The Johnson Controls A19AGA-2C is a line-voltage remote bulb temperature control engineered for general-purpose applications in commercial HVAC, refrigeration, and heating systems. This single-stage, open-enclosure controller utilizes a liquid-filled sensing element to deliver dependable performance where rugged, no-frills temperature control is required.
Features
- SPST (Single-Pole, Single-Throw) switching action for straightforward on/off control
- Remote bulb sensing element for accurate temperature detection at the point of control
- Fixed differential for consistent and reliable temperature cycling
- Open enclosure design allows for easy integration into existing panels or custom enclosures
- Automatic reset operation that eliminates the need for manual intervention
Specifications
- Temperature Range: 20°F to 90°F
- Capillary Length: 10 feet
- Bulb Size: 3/8 inch x 5 inches
- Switch Type: SPST
- Differential: 3.5 +/- 2°F Fixed
- Enclosure: Open / None
Applications
- Commercial refrigeration equipment, display cases, and beverage coolers
- HVAC unit ventilators and air handling units
- Low-temperature freeze protection systems
- Fan and heating element cycling in industrial environments


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