Record Heat Wave bakes Europe, but what does that mean for air-conditioning in Europe? Never in recorded history has Paris been hotter than it was in the beginning of August, when the temperature neared 43 C. The same was true of Belgium, Germany and the Netherlands, as a dangerous heat wave scorched Western Europe. The [...]
Read the Beginners HVAC Tech’s Guide for Understanding Superheat by ACHR News. Superheat is oftentimes the most confusing measurement taken in the field. TRICKY CALCULATION: Superheat is actually the difference between two measurements. And the term “heat” causes confusion, since the value can be negative. Much like subcooling, understanding and calculating superheat can be somewhat [...]
Checking refrigeration, air conditioning and heating systems for leaks is a complex challenge. For example, even the wrong choice of leak test method, such as the water bath method, can cause the tester to overlook leaks because he has not considered the deformability and volume change of the test piece. Inficon has compiled a top 10 checklist of [...]
One of the most important tasks during installation or repair of air conditioning and refrigeration systems is evacuation. Many people ignore this, so let us have a look at what evacuation is all about. Water (moisture) in the system causes the problems discussed below. Air in the system is not condensable and has the effect [...]
So, it’s back to basics. Unitary systems are very popular and these units do offer some advantages, perhaps the most obvious are ease of installation and lower initial cost. But let’s look into what air conditioning is. Air-conditioning is the simultaneous control of: The temperature of the air i.e. by cooling or heating The humidity ratio [...]
Air conditioning is part and parcel of our modern-day world, ensuring that working conditions and driving conditions offer a superior level of comfort, especially in extreme weather conditions. In order to lessen the burden on the world around us, it is obvious that the air conditioning industry and the gases that are used in air [...]
