Kohler Power Systems has aded two new models to its line of diesel-powered mobile generators. The 90REOZT4 and 120REOZT4 offer flexible options to meet the needs of end users. The Tier 4 Final generator models are built to withstand the elements, run long hours in prime and standby applications, and meet all EPA emission standards, said company officials.
Danfoss has introduced the ICV (H)A4A control valve with flanges, the full replacement for all common flanged control valves on the market. Inspired by the ICV Flexline™ platform, the company said the ICV (H)A4A control valve’s modular design extends the lifetime of existing refrigeration installation while delivering a significant reduction in cost, energy, and servicing and maintenance times.
Greenheck make-up air Models DGX and MSX can now be configured with a direct drive, backward-curved plenum supply fan. Both models offer an operating range capable of 800 – 25,000 cfm and external static pressure up to 4 in. wg. The DGX-P and MSX-P offer additional design solutions when an application requires higher external static pressures caused by extensive ductwork or higher efficiency filtration.
The YORK brand of Johnson Controls has launched the YORK YK-EP “Efficiency Plus” water-cooled centrifugal chiller. The chiller achieves 5% capacity and efficiency improvements over the previous model. It utilizes a patent-pending mechanical compression economizer cycle to boost performance over conventional chiller platforms.
Tyco Fire Protection Products introduced the BFV-300 Butterfly Valve. The company says the BFV-300 is now a lighter, more compact design that allows for more efficient installation, easier operation, and long-term performance. New features of the valve make it smaller and lighter.
The OMEGA® OM-CP-TEMP1000IS-A and OM-CP-RHTEMP1000IS-A data loggers offer a compact design and portability which allows for placement into hard to reach locations. According to the company, features include a 316 stainless steel enclosure, fast response times, and faster downloads.
RectorSeal® Corp. has developed the Slimduct® Lineset Protection Cover Kit by Inabo Denko, the original premium lineset cover manufacturer. RectorSeal's compactly boxed kit provides all the duct and fittings necessary for protecting and concealing linesets in a routine central split-system or minisplit air conditioning installation.
Bradford White Water Heaters has launched its ElectriFLEX™ HD (Heavy Duty) field convertible commercial electric water heaters. The new ElectriFLEX™ HD models join the ElectriFLEX™ LD (Light Duty) and ElectriFLEX™ MD (Medium Duty) products to complete the full line of Bradford White convertible commercial electric water heaters.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.