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Product

Liebert AC4 Controller

Autochangeover controllers are ideal for coordinated control of systems with redundant data center infrastructure 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.

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Meest geschikt voor:
  • Banking, Financial and Insurance
  • Data Center/Colocation/Hosting
  • Government
  • Healthcare
  • Telecom
Garantie: One Year Limited Warranty Against Defects in Material and Workmanship.

Voordelen

Ensures high availability of cooling through automatic centralized control of computer room critical equipment
Simpilfies emergency switching and unit testing
Balances system runtime to reduce cooling unit wear and tear
User-friendly interface makes it easy to program
Interfaces with any device that closes an electrical contact    

Kenmerken

Autochanger for up to eight cooling units
LCD interface and a terminal interface, as well as interface to
Liebert SiteScan Web
Adjustable auto-cycle interval for automaticchangeover (up to 99 days)
Adjustable alarm delay before control after alarm (up to 99 minutes)
Device in alarm can be selected to disable (shutdown) or remain enabled (continue running) after changeover
High and low analog (temperature) alarms
Analog controlled staging of devices (temperature staging of units)
Power failure override
Two Form C control relays activated by any digital or analog input
Paging for up to four numbers
Preconfigured onboard modem
Battery backup
User interface via RS232 or modem connection 

The Liebert AC4 is ideal for coordinated control of systems with redundant equipment, such as multiple environmental units pumps. When the Liebert AC4 controller detects an alarm in an operating device, the Liebert AC4 enables a standby device and controls the device in alarm as configured, either leaving that device operating or disabling it. The Liebert AC4 controller can also balance usage of devices by rotating units through Operating and Standby modes according to a user-defined schedule. This helps keep redundant equipment operating efficiently and only when needed. The Liebert AC4 can perform routine testing of standby devices and alert personnel if a standby device fails an operating test and requires attention. The system monitors the status of connected devices and keeps personnel apprised by local alarming.The Liebert AC4 controller can interface with anything that closes an electrical contact.

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Er worden contactpersonen weergegeven voor Ohio, 43215, USA Wijzigen
Vertiv (Liebert Services)
+1 800 543 2378
610 Executive Campus Drive Westerville Ohio 43082 USA
Producten op het gebied van: UPS, PDU’s, Thermal Management, Geïntegreerde oplossingen, Racks en Containment
Vertiv Academy – Thermal Management Training
+1 844 841 2665
530 Westar Blvd Westerville Ohio 43082 USA
Producten op het gebied van: Thermal Management
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