Quick Response Expansion Valve with Precision Superheat Controller

Maximize evaporator efficiency and save energy with an electronic solution that maintains target superheat, no matter what it’s like outside. Learn more about our unique silicon-based micro-electronic mechanical systems.


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System 450™ Series Modular Electronic Controls

The System 450 modular electronic controls are best known for their versatility. They can handle spaces with multiple conditions because each control module accepts three inputs – temperature, humidity and/or pressure, in any combination. System 450 is ideal for a wide range of HVAC/R applications. The video features just a few of the possibilities.

A421 Electronic Temperature Control with Off-Cycle Defrost

Manage cooling, defrost, alarms, communications and costs with the A421 refrigeration controller. It offers a wide range of options that allow for customized control functions. A scrolling display provides walk-through instructions for each step of the setup process, using plain language.

The PENN Family of Pressure and Temperature Controls

Learn more about the PENN family of pressure and temperature controls, including the Encapsulated Pressure Controls, Electromechanical Pressure Controls, and Electronic Pressure and Temperature Controls.

Request a sample of the PENN® control products that interest you – and build on our expertise to achieve the results you need.