Legacy Chiller Controls in North America

Control Your Legacy Chiller from Any Computer on Your Network

At Legacy Chiller, Inc., we understand the importance of precise and dependable control of your cooling systems. Our chiller controls in North America are equipped with state-of-the-art technology, ensuring smooth and efficient operation. Standard across all models, these controls offer real-time monitoring, easy troubleshooting, and remote accessibility, enabling you to manage your chiller systems with confidence and ease.

Here's How
A large industrial air conditioning unit featuring two prominent fans, designed for efficient cooling in commercial spaces.

Open Cabinet Showing Model with Filter

The Legacy touch screen user interface with Pentra Microsmart Programmable Logic Controller (PLC) is standard on ALL models!

A control panel surrounded by multiple wires, highlighting the complexity of its electrical connections.

Important Note:

Other chiller manufacturers use board-mounted relays. When they go bad, the entire circuit board must be replaced, resulting in longer chiller downtime. Legacy chillers use “plugin” control relays for quick and easy replacement with much less downtime and cost.

Standard Features:

  • Ultra-bright 5.7-inch color LCD OI touch screen with auto screen saver
  • 15 control screens with built-in help features
  • Real-time pressure and temperature readings
  • Real-time superheat, subcooling, chiller supply, and chiller return temperature graphical trending
  • Automatic compressor lag/lead with five operational modes
  • Automatic system pump lag/lead with five operational modes
  • Control up to two system pumps
  • Manual and auto system pump control from the HMI home screen
  • Factory configured for all Legacy available chiller options
  • Control operates to a +/- 1°F accuracy
  • Powered from the chiller 24-volt control circuit
  • No high voltage interference
  • Operates and displays in °F
  • Controls cooling on inlet or outlet temperature
  • Monitors and logs compressor/pump run hours
  • USB update slot for in-place HMI and PLC software updates available from our website
  • CE, UL listed
  • Built-in web server via HMI
  • SD slot for optional data storage on HMI
  • Highly accurate and fast performance
  • Embedded ethernet port
  • Preprogrammed remote start/stop setup for customers' dry contact connection
  • Pentra PLC outputs control IDEC's RV1H pilot relays rated to 6 amps
  • The RV1H relays are plugin and 100% field replaceable
  • Pentra PLC/HMI have been load stress tested to an ambient temperature range of -10F to 120F
  • HMI provides onboard help with troubleshooting tips. Using QR codes (shown) on the screen, users can access detailed troubleshooting tips and videos via Legacy's dedicated web server.

[1] denotes optional items on most competing brands.

Legacy Chillers Touch Screen User Interface Examples

Visual representation of Legacy Chillers Inc., highlighting their offerings in a clear and organized format.

Chiller Main Operation Screen

A digital screen showing the alarm status of the system, featuring various alerts and their current conditions.

Chiller Alarm Status Screen 1

A close-up of a computer screen featuring the compressor settings interface, showcasing options for customization.

Compressor Operation Status and Pressures

Available Options

An industrial water pump with two valves, showcasing robust construction for effective water distribution and control.

VLT® HVAC Drive

  • Energy-efficient control pumps and compressors
  • Precise control of pressure and flow
  • Ensured maximum economy and low running cost
  • Standard interface with the Legacy software (This option can be added anytime with hardware installation.)
A compact power supply module designed to power various electronic devices efficiently.

VPN Secure Remote Connectivity

Virtual Private Networking (VPN) is used to connect a process chiller remotely over a secure network connection. A VPN can be used to remotely connect a chiller via an Intranet or Internet connection. VPN typically does not require a firewall configuration. Wired or wireless versions are available. Ewon comes with no monthly license fees.

A small electronic device connected by a green and white cable, showcasing its compact design and color scheme.

BACnet Gateway and Router

The Babel Buster BB@ is a BACnet gateway and router. It may be used as either or both in various ways for different applications. In its simplest form as a router, it will route the MS/TP network to a single BACnet IP network. It may be used as a router to interconnect multiple BACnet MS/TP via IP networks. It may even be used to traverse NAT routers on a WAN connection to connect distant buildings via the Internet.

An ethernet switch connected to a power supply, illustrating the setup for network connectivity and power management.

Ethernet Connectivity

  • Industrial-grade unmanaged network switching
  • The connection allows an interface with ensured maximum economy and low running cost
  • Standard interface with Legacy software (This option can be added anytime with hardware installation.)
A digital control panel featuring a prominent red cord, showcasing various buttons and displays for operational control.

Remote Idec Touch Screen Control Panel

Have complete control of your Legacy chiller from anywhere in your facility.

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