Key Nexus Technology Features...
Patented Economizer Technology
In addition to the chillers refrigeration system, a secondary Micro Channel heat exchanger system has been added. With Legacy’s proprietary economizer programming, this feature uses the outdoor air as the cooling medium whenever possible. Net result, KWH reductions of up to 60% and considerable reductions in carbon footprint. Potential qualification for LEED credits.
With a hard wired Internet connection, Nexus equipped chillers can send trouble and daily heartbeat email notifications to up to four separate email addresses. Net result, the ability to respond to potential cooling issues before critical process equipment is damaged.
Predictive Maintenance Monitoring
Nexus offers two services in this area when your chiller is connected to a wired Internet connection. First, the chiller will send you email alerts informing you when maintenance services are needed. And second, by way of Legacy proprietary PLC logic the chiller will email out when a maintenance item has reached the
point of potentially interrupting cooling. Net results, maintenance is only performed when needed and the ability to respond to issues BEFORE a failure.
Variable Frequency Drives
Nexus offers VFD drive standard on both pumps and Copeland Scroll compressors.
On Compressors: Legacy Chiller Systems is one of the first process chiller manufactures to offer a newly redesigned scroll compressor capable of operating from 15 HZ up to 70 HZ. This new technology offers paramount capacity control
and design flexibility.
On Pumps: Provides the ability to deliver design flow and pressure to the process. This flexibility allow for maximum efficiency by limiting energy usage to the
work that needs to be done.
ECM Fan Technology
A Electronically Commutated Motor (ECM) when controlled properly by a Programmable Logic Controller (PLC) can maintain precise refrigeration pressures greatly enhancing overall cooling system performance. In addition to improving the chillers cooling performance, ECMs also reduce total KWH and reduce noise levels.
For More Information... Call Us Toll-Free at: 877-988-5464.
Note: Air-Cooled Process Chiller Capacities based on
ARI Standard 45º LWT and 95º F AMB.
Click on a Chiller Model to Download a Spec Sheet