Johnson Controls A19AAD-5 Temperature Control 30067439-890 The Functional Devices TR50VA006 Transformer

The Functional Devices TR50VA006 Transformer is a heavy-duty 50VA control transformer optimized for 277Vac to 24Vac power conversion in commercial HVAC and building automation systems

OEM Compatibility: A direct-fit component for Sensus 043B and Model 496 units

it is likely because the control is sitting in a standard well rather than this specific Hydrolevel 48-201

it is typically rated for 1 ton in R-134a systems and 1-1/2 tons in R-22 or R-410A systems

Johnson Controls A19AAD-5 Temperature Control 30067439-890 The Functional Devices TR50VA006 TransformerThe Johnson Controls A19AAD 5 is a professional grade, mechanical remote bulb temperature control designed specifically for demanding agricultural and commercial refrigeration applications, such as bulk milk cooler systems. This single stage temperature control features a SPST (Single Pole, Single Throw) switch configuration with Open Low action, meaning it breaks the circuit on a temperature drop to the setpoint. It operates reliably across a wide