Johnson Controls A319ABC-24-02 Electronic Temp Control [Refurbished]

The Johnson Controls A319ABC-24-02 is a line-voltage, single-stage electronic temperature control from the A319 series. It combines electronic accuracy with remote sensing: an interchangeable temperature sensor feeds the control, and an SPDT relay output with LED indication switches the load.

Operation is set by jumper block - vertical for heating, horizontal for cooling - and both the cut-in temperature and the differential are adjustable, the differential by a potentiometer marked DIFF inside the case. In heating mode the relay energises as temperature falls to cut-in and drops out at cut-in plus differential; in cooling mode it energises as temperature rises to cut-in and drops out at cut-in minus differential. The control is housed in a NEMA 1 high-impact plastic enclosure suitable for surface or DIN rail mounting. The -24-02 is supplied without a sensor and ships with the jumper blocks set for cooling operation.

* Brand / Manufacturer: Johnson Controls
* Model Number: A319ABC-24-02
* Series: A319 Electronic Temperature Control
* Type: Line voltage, single-stage electronic temperature control
* Output: SPDT relay with LED indication
* Modes: Heating or cooling (jumper selectable)
* Adjustments: Adjustable cut-in and adjustable differential
* Setpoint Range: -20 to 100°F
* Differential Range: 1 to 30°F (0.5 to 17°C)
* Sensor: Not included (order separately)
* Sensor: Interchangeable remote temperature sensor
* Enclosure: NEMA 1 high-impact plastic, surface or DIN rail mounting

Typical applications include refrigeration and cold room control, unit heaters and process heating, cooling equipment, and retrofit duty where a mechanical thermostat is being replaced with an electronic control.. Johnson Controls. Johnson Controls. A319ABC-24-02.