Johnson Controls A19ANC-1 Temperature Control

The Johnson Controls A19ANC-1 is a robust remote bulb temperature control designed for demanding HVACR applications requiring a 0°F to 150°F setpoint range. Built with a SPDT switch action, this mechanical thermostat allows for versatile heating or cooling control with a 5°F fixed differential, ensuring precise cycling without premature equipment wear. The unit features a 10-foot capillary lead and a 3/10" x 2 1/2" sensing bulb, providing flexibility for remote mounting in reach-in coolers, ventilation systems, or process equipment. Encased in a NEMA 3R enclosure, the A19ANC-1 is rated for rainproof applications, making it a reliable choice for outdoor or wash-down environments. Field adjustments are simplified via the screwdriver slot range adjuster, while the automatic reset functionality ensures consistent operation across 24V to 277V AC circuits. For technicians seeking a durable A19 series replacement, this controller delivers industrial-grade performance in harsh conditions.

• Versatile Voltage Compatibility: Supports 24 to 277VAC, making it suitable for both residential and commercial electrical footprints.
• Weather-Resistant Housing: The NEMA 3R enclosure protects internal components against windblown dust, rain, and external ice formation.
• Remote Sensing Capability: A 10-foot long capillary temperature sensor allows the control head to be mounted away from the sensing point for easier access.
• Reliable Switching: Features a high-capacity SPDT contact configuration to handle line voltage or pilot duty loads with ease.

Can the A19ANC-1 be used for both heating and cooling?
Yes, the SPDT switch allows you to wire the control to either make or break the circuit on temperature rise, facilitating dual-purpose application.

What is the benefit of a fixed 5-degree differential?
The 5 degree F fixed differential prevents short-cycling of compressors or heaters, maintaining a stable temperature window without requiring manual calibration.

Is this control suitable for refrigeration walk-ins?
Absolutely. This mechanical temperature control is frequently used for high-temperature refrigeration and general-purpose ambient temperature sensing.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.