Description
The Johnson Controls A421AEC-01 is a line voltage NEMA 4X electronic temperature control for accurate control of temperature in HVAC systems. It has a remote bulb sensor that measures temperature from -40°F to 212°F. This control device also runs on 120V and has a switch connection type of SPDT for easy wiring. It has one cooling stage and is designed to change automatically between them, thus making it easy to switch between temperatures. The set dial display is also used to set the required temperature for the room.
