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The equipment in this month’s troubleshooting situation has been around a while. Installed in 1999, the unit is a Nordyne brand, Model #S3BA-60K, and the customer requesting service explained to the dispatcher that they have had to replace fuses in the disconnect several times.

Regulations, market drivers, and trends reflect that carbon dioxide (CO₂) is increasingly being used as a refrigerant in a variety of applications. This includes applications such as: supermarkets/grocery stores, cold rooms, walk-in freezers, industrial cold storage, and food manufacturing/processing.

If it seems like the internet is changing every six months and throwing your online marketing efforts into flux, you’re not imagining things. Between rapid changes in homeowner behavior, the proliferation of new mobile devices, and Google’s always changing algorithms, it’s difficult for HVACR marketing teams to keep up.

Bob and Tim were on a service call at a new customer’s house. The complaint was that the humidity in the house seemed to be high because mold was growing — shoes in closets and wooden object were the worst. The summer weather was very hot, and there was also high humidity.

A new Center for Disease Control and Prevention (CDC) study involving 196 cooling towers nationwide found that 84 percent contained Legionella DNA, indicating that the dangerous bacteria that causes a severe, even fatal type of pneumonia were present or had been at some point. This means the real question is not “whether there will be another outbreak” but only “where and when” it will occur. 

Issues surrounding immigration have been a focal point for employers since the 1986 passage of the Immigration Reform and Control Act (IRCA). The effects of that law and its requirements have made the hiring process a source of major concern for many employers.

This month’s troubleshooting situation involves an air-to-air package unit heat pump that is approximately nine years old, and the customer’s complaint is that rather than providing cooling, it’s just blowing warm air.