I announced that I was working on an upcoming article, and it is to be one regarding a general overview of the Tridium Niagara R2, AX, and N4 products. I asked for input, requests, or suggestions from anyone interested in this subject matter. I was inundated with a tremendous amountContinue Reading
BACnet MS/TP over RS-485 is one of the most common and cost-effective solutions for a network of Building Management System (BMS) controllers. I know that the current trend is for BACnet over IP based networks, but the tried and true BACnet over RS-485 networks have their merits. There are tremendousContinue Reading
What checklist for a Broken HVAC System Can I Use? The middle of a hot summer, or no matter where your company is located in the world where the climate includes extremely high temperatures is the worst time to find out your HVAC system won’t turn on. Your first reactionContinue Reading
When most business people travel for their jobs, they retire to their hotel room at the end of the day. However, when long-haul truck drivers are finished with their work, they move to the back of their truck cab into what is called the sleeper compartment. Long-haul, over-the-road truck driversContinue Reading
Properly designed and implemented sequences for building control can dramatically improve the energy efficiency, comfort and safety of commercial buildings. Unfortunately the process to develop, document, implement, and support these sequences is complicated and error prone and as a result many buildings operate sub-optimally. Building Intelligence Group helped to defineContinue Reading
UK: Carrier AquaForce water-cooled screw chillers, with a combined cooling capacity of more than 1.4MW, are providing high efficiency cooling at Wiltshire County Council’s Trowbridge headquarters. The two Carrier high performance AquaForce 30XW-V variable speed R134a chillers selected employ inverter-driven twin-rotor screw compressors. These enable the chiller to achieve ESEERsContinue Reading
PROBLEM: High-rise buildings, built in 1960’s, were experiencing scaling, bio-film and dirt (rust) deposits in their condenser water systems. This inhibited heat transfer, lowering HVAC hydronic system efficiency. Previous traditional solutions (chemicals & flushing) failed to stop the cooling towers and chillers from scaling up. This required that they beContinue Reading
Temporary structures require HVAC to provide safe and comfortable environments for healthcare professionals and patients combatting COVID-19 MILWAUKEE — Johnson Controls Ducted Systems teams continue to work quickly and efficiently in the fight against the fast-spreading novel COVID-19 pandemic that is severely affecting people across North America and the world. MostContinue Reading
Device cleans contaminated air and prevents it from spreading to different sections of a hospital; potential future uses include homes, businesses, and assisted living facilities PALM BEACH GARDENS, Fla.— To help hospitals treating patients with the novel coronavirus (COVID-19), Carrier Global Corporation (NYSE: CARR) today launched the OptiCleanTM portable negative air machine, which cleansContinue Reading
An article by David Smith. What do you do if you have a Frozen Air Conditioner? I received a call from a client that I had designed and installed a Heating, Ventilation, and Air Conditioning (HVAC) system in his home. He informed me that he had no Air Conditioning (AC)Continue Reading
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