This chiller plant retrofit team encountered challenging existing conditions and an-swered with savvy choices for piping and valves as well as the chillers. Good communication, accurate documentation, and a creative bidding idea you might want to borrow also contributed to bringing the mechanical work in effectively and on budget.
Pumps, flues, valves, sizing, maintenance ... there’s a lot more to consider than just the boiler. Keep the car metaphor in mind, and your next replacement might not drive you to despair.
Pressure independent control valves proved to be a key in wringing the benefits out of smartly managed chilled water temperature, but that wasn’t all. Airside energy recovery, desiccant dehumidification to eliminate reheat in operating room environments, and upgrading to ECM fan systems have all contributed to this hospital’s fiscal wellness.
For use in a wide range of processing applications ranging from sanitary and food processing to water treatment and chemical operations, Matco-Norca now offers a range of carbon steel and stainless steel (CS & SS) valves.
Taco’s newest Zone Sentry Zone Valve – with an inverted flare – is suited for retrofit and new construction work. According to the company, the zone valves improve the overall performance of any hydronic system that uses a zone valve. Taco’s zone valve line uses microcircuit-based logic to control a gear-driven electronic actuator that drives a ball valve-based body design.
Rinnai has introduced a new line of condensing tankless water heaters, featuring a recirculation technology to help users save time, money, and natural resources.
Danfoss says it has developed the new TU with F-charge TXV to help OEMs meet the new U.S. Department of Energy commercial refrigeration energy efficiency standards. The new F-bulb charge delivers low superheat in low- and medium-temperature refrigeration ranges, includes asymmetric ballast material that is proven to deliver more stable temperature control and, like all Danfoss TXV bulb charges, is HCFC-22 free.
Uponor North America is launching a new stainless-steel manifold targeted for residential and commercial radiant heating and cooling applications. Made of corrosion-resistant stainless steel, the manifold is available in 1-in and 1.25-in sizes in two through eight, 10, and 12 loop configurations.
In an effort to improve energy efficiency for commercial buildings, ASHRAE, IES, ANSI, and the DOE have been working diligently to increase the stringency of state energy codes.