Para Systems Inc. has released the Minuteman Entrust LCD Series of UPSs. The company says this new line of uninterruptible power supplies (UPSs) offers complete power protection designed to protect valuable equipment.
The model 14359 UL/C-UL Listed Class 2 Transformer from Foster Transformer accepts line voltages of 120, 208, 240, and 480 V, 50/60 Hz, allowing near universal application. Its 24V, 75 VA rating provides ample capacity for most low voltage control applications, and its integral wiring compartment simplifies field installations, according to the company.
Trane has expanded its ductless portfolio to include the new Trane® Water-Source VRF Ductless Systems. The company reports that the new systems provide energy-efficient climate solutions for multi-tenant and diversely occupied buildings, including commercial real estate, and K-12 and higher education facilities.
MovinCool®, a brand of DENSO Corporation, unveiled a new Climate Pro™ 18 portable heat pump, which combines both cooling and heating capabilities in a single, self-contained unit. The company says the compact system is 13% smaller and 22% lighter than other comparable heat pumps, yet it offers significantly higher performance. The Climate Pro 18’s cooling capacity is 14,600 Btu/h, the heating capacity is 13,700 Btu/h, and the minimum operating temperature with plenum is 24ºF.
Daikin Applied has expanded its Magnitude WMC chiller line to include four additional sizes – WMC125, 200, 225, and 275. The product is ideal for most commercial applications including hospitals, small to midsized data centers, schools, and office buildings. The company says the expanded line provides greater flexibility for engineers who can now closely match chillers to the specifications of the job and apply magnetic bearing chillers on many more projects.
Bitzer is now offering a range of compressor units for use with the natural refrigerant ammonia (R717). The Bitzer ammonia compressor packs (ACP) are available with a capacity range of 100 to 450 TR. The modular compressor units comprise up to three compressors. For higher capacities, as many as three compressor packs can be connected (up to 9 compressors) and connected to a single controller, increasing the overall capacity up to 1,200 TR. The company says this is ideal for industrial systems.
Bitzer says its new Ecoline reciprocating compressor series is now more versatile and available for use with R134a, R404A, R407A, R407C, R407F, and R507A. With the new series, the company claims it is transferring all the advantages of the Ecoline series for R134a refrigerant to an even broader range of applications.
Berlin-based InvenSor GmbH says it is advancing the global distribution of its adsorption chillers in the range of up to 200 kW. Made in Germany, the company develops patented environmentally-friendly technology based on a physical process called adsorption to create cooling from heat without using electrical energy.
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.