The System 450 Series is a family of compact digital electronic control, expansion, and power modules that you can assemble and set up to provide reliable on/off and proportional control of temperature, pressure, and humidity conditions in a wide variety of HVAC, commercial, and industrial process applications.
A System 450 Series control system includes the following features:
- A single control module with LCD and 4-button touchpad
- One to three inputs
- One to 10 relay or analog outputs provided by the control module and expansion modules
- An optional power module