Commissioning a system is critical anytime a technician makes any type of repair or alteration to an existing system. It’s also important if you’re working on a system you’ve never worked on before, and it’s a vital part of a new install start-up. Basically, commissioning systems is an everyday responsibility for technicians, which means everyone […]

Most of the laws we refer to in air conditioning and refrigeration are pretty obvious and practical. Dalton's law of partial pressures is no exception. John Dalton observed that the air pressure was equal to the added pressures of each gas that make up air. That means that the pressure and density of air can […]

Double traps are no good. That's the end of this tech tip. Okay, here's some detail: Anytime your drain goes up and down more than once, you have a double trap UNLESS you place an air vent between the two traps that vents ABOVE the drain inlet. The double trap causes drainage issues because air […]