Description
The Johnson Controls A19CAC-1 is a mechanical strap-on temperature control engineered for reliable pipe-surface temperature sensing in commercial and residential HVAC and hydronic applications. Featuring automatic changeover switching and a concealed adjustment cover, this controller delivers precise, tamper-resistant temperature management across a wide voltage range.
Key Features
- Mechanical temperature control with automatic changeover for heating and cooling applications
- SPDT (Single-Pole, Double-Throw) switching action for versatile system integration
- Wide operating voltage range: 24 to 240 Vac — compatible with most commercial and residential control circuits
- Setpoint range of 60°F to 90°F for precise pipe-surface temperature regulation
- 10°F fixed differential for consistent, stable switching performance
- 42-inch capillary length provides flexible sensor placement on pipes and surfaces
- Strap-on mounting design for quick, tool-friendly installation on pipe surfaces
- Concealed adjustment cover deters unauthorized setpoint changes and protects settings
Specifications
- SKU: A19CAC-1
- Brand: Johnson Controls
- Control Type: Mechanical Temperature Control
- Switch Action: SPDT, Automatic Changeover
- Voltage: 24 to 240 Vac
- Setpoint Range: 60°F to 90°F
- Fixed Differential: 10°F
- Capillary Length: 42 inches
- Mounting Style: Strap-on (pipe surface)
- Adjustment: Concealed cover
Applications
- Hydronic heating and cooling systems
- Chilled water and hot water pipe control
- Commercial HVAC equipment protection and regulation
- Fan coil and air handling unit control circuits
- Boiler and chiller system pipe-surface monitoring
The A19CAC-1 is a dependable, field-proven solution for contractors and facility managers who need accurate, low-maintenance pipe-surface temperature control. Its broad voltage compatibility and strap-on design make it easy to retrofit into existing systems without extensive rewiring or pipe modifications.
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