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Home » Topics » HVAC Contracting

HVAC Contracting
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Prescription Drugs and Best Practices

Richard D. Alaniz
July 2, 2018
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.
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temp

A Common Sense Look at Temperature Conversions

Podcast studio
Bryan Orr
July 2, 2018
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.
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MEHVAC

Mitsubishi Electric kumo cloud at Matt Scott Residence

July 2, 2018
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.
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btu2

BTU Buddy 183: Air Cooled Chiller Maintenance

Bill Johnson
June 18, 2018
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.
Read More

Five Simple Tips to Win Homeowner’s Trust and Earn Their Business

Whiteley
Shawn Whiteley
June 18, 2018
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. 
Read More

Air Barrier Testing: Revealing Cost Reduction Solutions for School Systems

Jeff H. Poe
June 18, 2018
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.
Read More
boiler

Safer Steam Boilers Are Often a Matter of Physics and Physical Design

Miura
June 18, 2018

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.


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Johnson

A Two-Stage Air Conditioner That's Not Working

Jim Johnson
June 4, 2018
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.
Read More
Extra Edition IoT

Beyond IoT to Digital Transformation in the Modern Supermarket

mckiernan
Ed McKiernan
June 4, 2018
It’s nearly impossible to discuss best practices within the supermarket industry without bringing up the subject of the Internet of Things (IoT).
Read More
Shanandoah

Shannondell at Valley Forge Case Study

June 4, 2018
Shannondell at Valley Forge required an immediate solution to the excessive noise from its rooftop unit on the Bradford Clubhouse & Performing Arts Theatre.
Read More
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November 6, 2025

Next-Gen Data Center Cooling: HVAC Innovation and Real-World Solutions

On Demand As AI workloads and high-density computing push traditional cooling methods to their limits, the data center industry is accelerating the adoption of next-generation HVAC technologies.

July 22, 2026

Designing VRF Systems Using A2L Refrigerant

In this session, we will cover how to design VRF systems for the U.S. market using new A2L refrigerants. These systems provide an advanced zoning solution by using inverter technology to deliver precise heating and cooling control across multiple zones and spaces.

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