Record power demands during the last two winters caused electrical distribution zones to trip off-line. How did that affect HVAC systems? 

The patent-pending VaporVue is a visible vapor charging device that absorbs heat naturally and flashes the liquid refrigerant from the cylinder and charges into the system as a vapor.

Expansion of the company’s North American large-frame rotary compressor lineup includes new solutions for the residential, specialty, and industrial air conditioning markets.

Energy-saving Keil® Refrigeration Hardware T12 Series condensate evaporators are now available with a weight-sensing on-off pressure switch.

In the warm summer season, cooling equipment operates at near peak capacity. If that equipment is used for critical building functions, any equipment downtime for whatever reason is unacceptable.

A preventive maintenance program at a leading New England Ivy League university demonstrates how the push for more sustainable building management has led to a growing awareness of a chronic, widespread problem for HVAC motors: electrical bearing damage.

Replacing a compressor is neither simple for a technician nor inexpensive for the customer. Before replacing a compressor, a technician needs to ensure that it is truly defective. Unfortunately, sometimes good compressors get replaced as a result of a misdiagnosed problem.

Btu Buddy has met Bob for lunch to answer some questions that Bob had about yesterday’s service call. Bob asked, “Why did that motor have two contactors and so many wires going to it? It seemed very confusing. I am glad that I tagged those motor leads when I disconnected the motor. I never would have figured out how to reconnect the leads.”

Ask any fashionista and she’ll tell you her outfit is nothing without accessories. The winners in The NEWS’ eighth annual Dealer Design Awards’ Components and Accessories category know this to be true too, but they aren’t dealing in cheap jewelry and ridiculous shoes.

We all create our own individual histories every day. At the same time, we become part of a larger history. With that in mind, we asked a few industry colleagues what the most significant changes were that they have witnessed in the HVACR industry.