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This K-12 building automation troubleshooting experience turned into a case of “show and tell” that nobody wants at their own school, so take notes on both the causes and the solutions.
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.
Cleaver-Brooks has launched the ClearFire®-CE (CFC-E) condensing boiler. The company says the boiler can achieve up to 99% efficiency due to its enhanced AluFer® firetube heat exchanger and dual temperature returns. When utilized, dual temperature returns increase condensing in a hot water boiler, raising efficiency by 6% or more compared to a traditional single-return design, according to officials.
Bonomi North America is introducing a new series of NSF-Certified butterfly valves with factory-installed electric or pneumatic actuators for potable water applications with high flow requirements. The new N500 Series wafer and N501 lug body valves feature ductile iron body construction with EDPM rubber seats. They are available with stainless steel disc (N500S/N501S) or nylon-coated disc (N500N/N501N). All are approved to NSF /ANSI 61,372. Sizes range from 2 in through 12 in.
Belimo Americas has released an advanced butterfly valve designed specifically for the HVAC industry. The company says its newly designed butterfly valve and PR actuator assembly was developed with a focus on ease of installation, application flexibility, and longevity.
Bonomi North America is introducing a new line of automated thermoplastic ball valves for use in plumbing, mechanical, chemical, and other applications. Listed with NSF to Standard 61 for potable water, the new valve packages offer a variety of advanced features that improve operation and enhance reliability, said company officials.
The new Valbia® VB008 Mini quarter-turn direct-mount electric actuator measures 4.75-in long by 2.75-in wide. Used with .25- to 1.25-in full-port direct mount ball valves, the company says it provides the compact and reliable automatic flow control for a wide range of HVAC, light industrial, and OEM applications.
Belimo Americas releases its new ZIP Packs. The packaged solution is designed to provide the necessary equipment to retrofit current systems — the ZIP economizer base, sensors, energy module for demand control ventilation (DCV) integration, spring return actuator, and retrofit brackets backed with a five-year warranty.
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