If you do any larger commercial work, you've probably seen a DIN rail without knowing what it is called. It is simply a mounting standard that originated in Germany in the 80s and slowly worked its way over here. DIN rails can be used to mount terminal blocks, relays, starters, breakers, and just about anything […]

Net refrigeration effect (NRE) is the quantity of heat that each pound of the refrigerant absorbs in the refrigerated space to produce useful cooling. That’s a pretty vague definition. We know that it’s an amount of heat in processes that take place within the evaporator. Still, the phrase “useful cooling” seems rather broad. Even though […]

Courtesy of Emerson It is important to have refrigerant that is free from debris and contaminants, and we control these issues on many different fronts. 1. Proper tubing handling preventing copper shavings, dirt, and water from entering while installing. 2. Flowing nitrogen while brazing to prevent carbon build-up. 3. Deep vacuum of 500 microns or […]