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Home » Topics » HVAC Contracting

HVAC Contracting
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EE_Jim Johnson

A Package Unit That's Not Heating

Jim Johnson
December 10, 2018

In this troubleshooting situation, the customer has called to report a “no heat” problem. The equipment is a 5-ton, 230 VAC single-stage gas/electric package unit that employs an integrated furnace control and a constant torque blower motor.


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EE_Technical 1

Installing a Forced-Air Zoning System is Easier Than Ever, Here's Why…

Jarred Duebel
Jarred Duebel
December 10, 2018

The question is, “Why are more contractors and or builders not offering this value-add to their clientele?” A couple common responses we hear in the field are, “It’s too complicated,” or “Installing zoning leads to too many call backs.” Sound familiar? The truth is, this used to be the case.


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Lewd Language In the Age of #MeToo

Richard D. Alaniz
December 10, 2018

Today, however, it is the intense attention that has been focused on sexual assault and sexual misconduct in the workplace that has brought anything related to sex, including lewd or sexually explicit comments, to the forefront of employer’s legal concerns.


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EE_IAQ

Today’s Air Quality Monitors Can Help Sell HVAC Air Purification to Homeowners

Aaron Engel
December 10, 2018

Many homeowners aren’t aware of the danger that mold, volatile organic compounds (VOCs), particulates, allergens, and other biological contaminants pose inside their homes. Therefore, they don’t proactively search for a solution.


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BTU Buddy 2

Btu Buddy 188: Charging a Heat Pump By Superheat in Cold Weather

Bill Johnson
November 19, 2018

Bob and Tim are at a job where a customer has damaged a refrigerant line on a heat pump. When they arrive, the line is still blowing a slight amount of vapor from the split in the line.


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EE_Bryan Orr

Combustion and Confined Spaces

Podcast studio
Bryan Orr
November 19, 2018

I live and work in Florida where most of our fuel-burning appliances are 80 percent efficient with open combustion that utilizes air and oxygen from the space for combustion.


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Tweet It, Post It, Share It: Why HVAC Contractors Should Develop Online Social Profiles

Whiteley
Shawn Whiteley
November 19, 2018

As a contractor, your reputation is an invaluable asset. What homeowners say about your HVAC business matters, and that’s especially true when it comes to what customers are saying on social media. Here are four reasons why you should develop a social media presence to support customer service.


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EE_Optimum Energy

The Chiller Plant as Living Lab: What High-Tech HVAC Systems Can Teach Students

Bert Valdman
Bert Valdman
November 19, 2018

Campus physical plants that have become internets of things — requiring cloud-based management, machine learning, and visualization tools — could serve as more than unseen controllers of the classroom environment. They could be the classroom.


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EE_SM Fig 1

An Equipment Room Problem

Jim Johnson
November 5, 2018

First, a bit of history… This facility, a small office complex, was built a little more than a decade ago, and the required carbon monoxide safety monitor in the equipment room was disabled at the beginning of the first heating season because there was an ongoing problem with it being activated from time to time.


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EE_Filters

Filter Fundamentals

Tom Turner
Tom Turner
November 5, 2018

Restrictive, undersized filter selection generally ranks high on the list causing underperforming HVAC systems. There have been effective electronic air cleaners around for many years, but for our conversation within this article, we will focus on media or fabric material filtering.


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July 22, 2026

Designing VRF Systems Using A2L Refrigerant

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