For many, being proactive with chiller maintenance in the early winter has led to better results in the spring, when it’s time to start the systems up again. Performing chiller maintenance as early in the winter as possible gives facility managers the benefit of finding major damage with plenty of time to fix the problems before the chiller needs to be back in operation.
If you are making a refrigerant circuit repair, weighing out and weighing in makes perfect sense, especially since microchannel condensers and scroll compressors make pumping down less viable anyway. But there are many cases where you just need to check the charge to make sure the system is working properly, and in these cases, weighing in and out is just plain silly.
The question is, “Why are more contractors and or builders not offering this value-add to their clientele?” A couple common responses we hear in the field are, “It’s too complicated,” or “Installing zoning leads to too many call backs.” Sound familiar? The truth is, thisusedto be the case.
Restrictive, undersized filter selection generally ranks high on the list causing underperforming HVAC systems. There have been effective electronic air cleaners around for many years, but for our conversation within this article, we will focus on media or fabric material filtering.
The belief that individual units within rooms are harder to maintain over central air conditioning units, is a myth. Using a condensate removal pump that can service multiple rooms at the same time, such as the Hi-Flow MAX from Aspen Pumps that has multiple inlets, removes the need for multiple condensate pumps on individual units — ergo managing costs effectively.
An increased awareness of indoor environmental quality (IEQ) is one trend driving demand for better-performing ventilation systems. Building occupants have a greater awareness of the importance of IEQ and how it can be affected by climate and population density.
Beyond conventional HVAC systems, more and more facilities are considering alternative ways to control temperature, while also controlling costs. Two increasingly popular ways of doing this are implementing networked systems of high-volume, low-speed (HVLS) ceiling fans, and segmenting heated or cooled spaces with fabric curtain walls.