Mitsubishi Electric Trane HVAC US LLC (METUS) introduced its CITY MULTI® N-Generation outdoor units. The N-Generation features a footprint up to 30 percent smaller than previous models and offers more design flexibility due to improvements in vertical piping limits.
Heatcraft Refrigeration Products introduced its intelliGen™ Refrigeration Controller, the newest addition to the Heatcraft controls portfolio. intelliGen is a factory-mounted electronic controller that aims to deliver reliable operation and improved system efficiency. Officials said the controller helps reduce product spoilage by maintaining better temperature control and provides energy savings through optimizing defrosts.
Heat Transfer Products Group LLC released its new EcoNet® Enabled Unit Coolers. Developed in conjunction with Rheem Manufacturing, the company says it builds on the efficiency of Rheem’s EcoNet® technology and brings it to the commercial refrigeration market.
Greenheck’s new line of ceiling radiation dampers are UL classified for installation in wood truss floor/ceiling assemblies. Model CRD-1WT is designed with a plenum box for side inlet or outlet duct connections. Model CRD-2WT’s inlet or outlet duct connection is made on top of the damper.
The new Metasys® 9.0 building automation system from Johnson Controls offers enhancements to the Metasys product line, including two new IP/Ethernet-based controllers and user interface (UI) features that make finding critical information and resolving issues easier, according to the manufacturer.
Carrier is offering an electronically commutated motor (ECM) direct-drive fan option for the Aero® 39M commercial air handler product line. According to company officials, adding the new ECM fan option enables customers to further improve the system’s energy efficiency. Onboard electronics determine the position of the rotor, which then provides an electronic pulse to actuate the motor windings.
Johnson Controls says its new SMART Equipment Controllers (SEC) use a smart mobile device interface that gives engineers the flexibility to easily access their Johnson Controls water-to-air water source heat pump controls through any Wi-Fi-enabled device and any internet browser. The controllers feature an onboard backlit local display with pushbuttons and BACnet Automatic Discovery support that enables integration into any BACnet BAS.
Laars Heating Systems now offers a 150- to 2,500-gallon electric water heater from 12 to 360 kW. The systems feature 150 psi ASME code glass lining, ASME temperature and pressure relief valve, internal fusing (above 120 amps), and magnesium anode rods.
Engineered Systems magazine’s June 2019 issue examines the role of HVAC systems and power in colleges and universities via the decentralization of a Missouri college’s central boiler plant, an examination of ventilation considerations in Group R-2 facilities, the steps engineers should consider when overcoming unanticipated boiler room setbacks, common calculations and considerations regarding NFPA 92, and much more.