Liebert AC4 and AC8 autochangeover controllers are ideal for coordinated control of systems with redundant equipment, such as multiple environmental units or pumps. When the controller detects an alarm in an operating device, a standby device is enabled and the device in alarm is either disabled or left operating as configured.
Liebert Controllers monitor running and stand-by environmental units for proper operation, switching operation to a redundant unit in the event of a problem. The controllers will also balance the runtime of environmental systems to ensure even component wear and long system life.
- Liebert AC4 is a four device controller with LCD display and terminal interface. Powered by 24VAC.
- Liebert AC8 is an eight device controller with Liebert SiteScan Web compatibility and modem interface. Powered by 120VAC.