Steve Austin is a 22-year-old HVACR technician employed with Metropolitan Mechanical Contractors (MMC) Inc., Eden Prairie, Minnesota, a division of APi Group Inc. Like his bionic namesake, Austin’s hearing is perfect; however, he has no voice.
This month’s troubleshooting situation involves an air-to-air, package unit heat pump that is approximately 8-years old, and the customer’s complaint is that, rather than providing cooling, it’s just blowing warm air.
In a recent report on Equal Employment Opportunity Commission (EEOC) legal actions, it was noted that the agency had filed suit alleging American with Disabilities Act discrimination by an employer for the failure to hire an individual who informed his new employer that he was using Suboxone, an opioid.
Before we convert temperature scales, let’s take a step back and think about what temperature is in the first place.
Temperature is proportional to the average kinetic energy of the random microscopic motions of the constituent microscopic particles, such as electrons, atoms, and molecules.
As one of the owners of Dave’s World – a supplier of modern energy-efficient equipment based in Dover-Foxcroft, Maine – Matt Scott has a longstanding relationship with ductless heat pumps. He encountered his first one while taking a refrigeration course after school and promptly fell in love.
Bob and Tim are going out to a new job. It’s an air cooled chiller on the rooftop of an office building. This is the first air cooled chiller that Tim has ever seen so Bob is going to have to describe the operation of the chiller to Tim.
Purchasing an HVAC system is often overwhelming to homeowners since it involves making a significant investment in complex equipment that they may not know much about.
Ever notice a breeze in older buildings even when it is not windy? Many buildings leak air, which means their owners are losing money. The Charlotte Mecklenburg School System (CMSS), the 19th largest in the U.S. with a $1.3 billion operating budget, recently decided to take action to identify school system buildings that might be exhibiting air leakage.
Today’s industrial steam boilers are remarkably safe. Yet, experts suggest that some steam boilers are safer than others, not simply based on physics, but on physical design and how that affects a range of everyday, routine operations.
The equipment in this month’s article is a two-stage air conditioning system. The operating conditions are high ambient, and the customer’s complaint is that there is no cooling.
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