Aquatherm’s polypropylene-random (PP-R) piping systems now feature a straight, threadless transition from PP-R pipe to copper sweated connections. This new transition allows for installations to be more easily fitted out entirely in PP-R, particularly on commercial and industrial plumbing applications using Aquatherm.
Paxton Corp. has introduced the V43 stainless steel control valve in sizes .5 in to 2 in NPT. The V43 has been tested by an independent laboratory and found to comply with the new federal, low lead law, ANSI/NSF 372-2011, maximum 0.25% lead.
LG Electronics USA has announced the U.S. availability of the LG Multi V Water IV water source unit, a new VRF HVAC system that comes in two configurations: heat pump and heat recovery. Both systems can accommodate up to 64 thermal zones with technology that allows the user to pipe farther, reaching distant areas of a building.
Tate has introduced the Tate Airflow, a new brand for data center products and services. According to the company, the Tate Airflow is comprehensive range of products that will help improve data center operation and flexibility from small scale enterprise to large scale colocation and public cloud data centers.
Armstrong Fluid Technology has introduced a new chiller plant automation system targeted at optimizing the performance of air-cooled chiller plants. The company says the IPC 9511 streamlines plant operations and can lower operating costs. Facility managers and engineers can benefit from this fully field-configurable solution with automation features for constant speed and variable speed configurations.
Desert Aire has unveiled its new Q-Pump Inverter + that uses a variable speed driven compressor. The Q-Pump Inverter + is incorporated into DOAS that are being installed on a geothermal, hybrid or tower/boiler loop, and delivers conditioned air to a building optimizing the performance of its heating and cooling systems. The Q-Pump Inverter + replaces Desert Aire’s Q-Pump.
The Ashcroft 1305D series portable deadweight tester is a pressure calibration system that includes a low range and high range piston assembly, weight set, a hydraulic (oil) test pump to generate test pressures, metal carrying cases, tools, and other accessories.
Two new models of duct heaters are now available from Greenheck. Model IDHB is configurable for most applications in sizes up to 36 in by 36 in. Model IDHC is customizable with enhanced features and a maximum heating capacity of 475 Kw.
Generac Power Systems is now shipping its 400 kW gaseous-fueled standby generators, and also unveiled a new 350 kW gaseous-fueled standby generator to its nationwide dealer network. As a single unit or configured in parallel up to 6 MW, the 400 kW and 350 kW generators provide a powerful natural gas alternative to diesel standby power systems, according to the company.
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.