HVAC Contracting

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Bob and Tim were at the house of a customer who said that her air conditioning unit did not cool well in the hot weather three days ago. She said the unit actually froze up and had ice on the outdoor portion of the unit on the big line. She shut the unit off and called for service.

People who work in well-ventilated offices with below-average levels of indoor pollutants and carbon dioxide (CO2) have significantly higher cognitive functioning scores — in crucial areas such as responding to a crisis or developing strategy — than those who work in offices with typical levels, according to a new study.

In this month’s troubleshooting situation the equipment that needs servicing is a split system and the refrigerant flow control is handled via an electronic expansion valve (EEV) shown in Figure 1.

Barksdale Air Force Base is no stranger to hot weather, which can be a constant battle for maintainers and others who work out in the elements. Thankfully, 2nd Civil Engineer Squadron HVAC Airmen ensure there’s a cool place to escape to while also providing other benefits of heating and cooling that directly affect the mission.

Businesses that want potential customers to linger longer on their websites have an easy tool for making that happen — video. It turns out, giving website visitors text to read or photos to look at isn’t enough to keep them engaged. But add a video and they’ll hang around, on average, an extra two minutes.