Johnson Controls A72AA-2 Temperature Control Freon check for cracked porcelain bushings

check for cracked porcelain bushings or carbon tracking on the electrodes

Using an incorrect size can lead to over-firing or under-firing

Common Technician Questions: Can this switch be used to monitor a dirty filter

Optimized Airflow Management: Supports a 5 SCFM flow rate to maintain proper pressure levels across the pneumatic loop

Can this be used for both heating and refrigeration

Johnson Controls A72AA-2 Temperature Control Freon check for cracked porcelain bushingsThe Johnson Controls A72AA 2 Temperature Control is a heavy duty, two pole temperature switch designed for reliable refrigeration and heating operation. This DPST (Double Pole, Single Throw) controller features a vapor charged sensing element that ensures precise response to thermal changes across its 15F to 55F ( 9C to 13C) range. Built with a 6 foot capillary tubing and a 3 8" x 3" sensor bulb, it provides the versatility needed for remote mounting