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Static Pressure Measurements and the Truth

Ed Janowiak conducts a series of static pressure tests regarding static tip and coil placement. Read about Ed’s results in this blog.

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Air Conditioners: Future Museum Exhibits?

Given the push to phase out air conditioners, their future as a relic is possible. Read more about the potential future of air conditioners at this blog.

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Get Ready for January and Regional Efficiency Standards!

New Efficiency Standards are going into effect on January 1st, 2023. Read about all the new regulation changes in this blog.

Hey Ed, Is It Possible to Hold a 500-Micron Vacuum on a Line Set if There Is Moisture in the System?

Wondering if a system can hold a 500-micron vacuum of there’s moisture in the system? Learn when a system can hold a vacuum in this edition of “Hey Ed!”

Hey Ed, What’s the Difference Between Sensible Heat Ratio and Sensible Heat Factor?

Wondering what the difference between sensible heat ratio and sensible heat factor is? Learn how to use Manual S to find out in this edition of “Hey Ed!”

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Compressor Locked Rotor Diagnostic

Understanding everything about your compressor is essential for maintaining it. Read this blog for an in-depth explanation of how a compressor works.

Hey Ed, What’s the Main Problem When We Make up a Friction Rate?

What’s the main problem when we make up a friction rate. Learn more about determining adequate airflow in this edition of “Hey Ed!”

Hey Ed, Why Is Manual S® Your Favorite Manual?

Why is Manual S® Ed’s favorite manual? Learn about the importance of residential equipment selection in this edition of “Hey Ed!”

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Take Care of Business & Watch Your Back

With the new Regional Efficiency Standards, old SEER equipment will require new rules for installation. Read more about SEER installs at this blog.

Hey Ed, Can We Use the Acronym ECM to Describe All Electronically Commutated Motors?

How do you describe electronically commutated motors Learn the difference between a constant torque and a constant air-flow in this edition of “Hey Ed!”

Hey Ed, What Is the Difference Between Taking Static Pressure Measurements on a New Versus Existing System?

In this edition of “Hey Ed”, Ed discusses the difference between taking static pressure measurements on a new versus existing […]

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Solving the Solvent Conundrum

Have you ever considered flushing your line sets? Or are you currently? In this month’s blog, we will cover some options that will determine when to make pigs fly.

Matt, How Do I Talk to a Tech About Their Personal Hygiene and Cleanliness?

Matt, What’s a Frankenstein System?

New Efficiency Ratings (SEER2) – Getting it Wrong

Bottom Line: The US Department of Energy (DOE) has new efficiency standards (SEER2, EER2, HSPF2), effective January 1, 2023. Unfortunately, these […]

Hey Ed, What Can I Do if I Cannot Find the Filter’s Performance Data?

What should you do if you can’t find the filter’s performance data? Find out what to do and in this edition of “Hey Ed!”

We Win!!

NFPA will be exempting all outdoor HVAC from NEC GFCI protection until September 2026. Read what this means for the HVAC industry in this blog.

Hey Ed, Does It Matter Where I Take My Supply Air Measurements for Discharge Air Temperature or Relevant Humidity?

Should you take supply air measurements for discharge air temperature or relevant humidity? Learn how to get the best reading in this edition of “Hey Ed!”

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ACCA Member Ed Lehr Testifies for You!

At the most recent NFPA Standards Council, Ed Lehr represented ACCA while urging the Council to fix a bad code. Read more about this council at this blog.

Impending Electrification

Electrification and heat pumps are coming, and with them, many HVAC problems to look out for. Read this blog to learn more about heat pumps.

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