Johnson Controls A28AA-4C Remote Bulb Temp Controller 30-110F 16A 120V

Johnson Controls A28AA-4C Remote Bulb Temperature Controller (30°F–110°F)

The Johnson Controls A28AA-4C is a wide-range remote bulb temperature controller designed for professional HVAC and refrigeration applications. This unit provides reliable temperature-based switching using a remote capillary sensing system, making it ideal for systems requiring accurate control away from the control housing.

Key Specifications

• Temperature Range: 30°F to 110°F

• Electrical Rating: 16 Amps @ 120V

• Switching: Two SPDT switches

• Differential: 3.5° each stage, 3° fixed between stages

• Remote Capillary: 8 ft capillary (per listing text shown)

Features & Benefits

• Wide-range control for HVAC and refrigeration systems

• Adjustable interstage differential for better system tuning

• Adjuster can be configured for knob, screwdriver, or concealed adjustment

• Durable industrial design built for long service life

Common Uses

• Refrigeration control circuits

• HVAC temperature sensing and switching

• Remote bulb control applications where direct sensing at the controller isn’t possible

📌 Model: A28AA-4C
📌 REM Number: 3R482
📌 Condition: Brand New

Important Notice – Propane Parts, Accessories, and Regulators

This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.

The seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.

It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.

Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.

The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.

By purchasing this item, the buyer acknowledges that they have read, understood, and agreed to these terms and confirm that installation and use will be conducted by a properly licensed and qualified professional.