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Home » Topics » HVAC Contracting » Technical

Technical
Technical RSS Feed RSS

Pitot-ACHR-News

The Difference a Pitot Tube Can Make — Part 1

Robust design results in near-zero maintenance
Jack Sine
March 18, 2019
Everyone involved with IAQ knows about the 1970s, when excess energy use became Public Enemy No. 1 for commercial building designers. Saving energy was the critical goal: Air leaks were being hunted like wild animals, and windows and doors were sealed so tightly that not a breath of conditioned air could seep out.
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Brewery Boiler

Brewery Cheers New Efficient Boiler System

Brewery implements low-pressure steam heating system and Weil-McLain boiler
March 4, 2019

In an effort to keep up with demand, a bourgeoning east-coast microbrewery sought to significantly increase production, but, to do so, it required a more cost-efficient and effective heating process.


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Thermostat

Smart Thermostats Are Not Enough to Bring Residential HVAC Into the 21st Century

Available products still cannot affect air distribution across a building to adjust for hot or cold spots
Hamid Farzaneh
Hamid Farzaneh
February 18, 2019

Thermostats have gotten seriously smart in the last decade. While they’re a great improvement over traditional thermostats, smart thermostats still cannot affect air distribution across a building to adjust for hot or cold spots, leaving a lot to be desired in terms of making the home a comfortable place.


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EE_Technical

A Really Loud Compressor

Bryan Orr
February 4, 2019

Yesterday I walked up on one of our managers who was talking to a junior tech diagnosing an intermittent controls issue on a pool heat pump.
In the background, you could hear an extremely loud compressor.


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EE_Technical

Five Steps to Improve Chiller Performance Through Maintenance

January 21, 2019

For many, being proactive with chiller maintenance in the early winter has led to better results in the spring, when it’s time to start the systems up again. Performing chiller maintenance as early in the winter as possible gives facility managers the benefit of finding major damage with plenty of time to fix the problems before the chiller needs to be back in operation.


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EE_Technical Bryan Orr_1

Checking the Charge on a Heat Pump in the Winter

Bryan Orr
January 7, 2019

If you are making a refrigerant circuit repair, weighing out and weighing in makes perfect sense, especially since microchannel condensers and scroll compressors make pumping down less viable anyway. But there are many cases where you just need to check the charge to make sure the system is working properly, and in these cases, weighing in and out is just plain silly.


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EE_Technical 1

Optimizing Home or Business Thermostat Settings

Ron Roth
Ron Roth
December 24, 2018

This brief guide provides a brief summary of the issue and specific instructions on how to correct it.


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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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EE_Bryan Orr

Combustion and Confined Spaces

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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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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