Technical Tips Archives

January 4, 2023

Hey Ed, Should Duct Be Added to an Undersized Supply to Reduce Static Pressure?

Want to learn how to reduce state pressure on an undersized supply? Learn how to add an additional duct in this edition of “Hey Ed!”

January 2, 2023

Matt, What Is a Maintenance Ambush?

Welcome to HVAC Skill Builder! Learn what to do in the event of a maintenance ambush in the first edition of “HVAC Skill Builder.”

December 28, 2022

Hey Ed, How Are Intermittent Loads, such as a Range Hood, Accounted for in Manual J®?

Want to learn how to account for range hood loads in Manual J? Learn how to approach load ventilation in this edition of “Hey Ed!”

December 21, 2022

Hey Ed, How Does an Electronic Thermostat Work?

Want to familiarize yourself with how an electronic thermostat works? Learn how an electronic thermostat detects temperature in this edition of “Hey Ed!”

December 14, 2022

Hey Ed, How Do You Measure a House for a Load Calculation?

Want to learn how to measure a house for a load calculation? Learn how to measure block loads in this edition of “Hey Ed!”

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December 13, 2022

I Was Given Static

Ed Janowiak answers a community question about proper static tip placement. Learn more about static tip placement and fully developed flow at this blog.

December 7, 2022

Hey Ed, When Do You Use Solvent?

When do you use solvent? Find out the proper way to use solvent in the edition of “Hey Ed!”

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November 29, 2022

Stay Frosty

It’s winter, which HVAC technicians should be taking precautions before heading out into the elements. Learn more about winter safety measures at this blog.

November 9, 2022

Hey Ed, What’s the Difference Between Manual J® and Manual JAE®?

In this edition of “Hey Ed”, Ed goes over the differences between Manual J and Manual JAE, and their intended uses.

November 8, 2022

ACCA Needs Volunteer to Fight for HVAC Professionals

If you are interested in fighting for the exemption of outdoor HVAC equipment from the GFCI requirements, now is your chance! ACCA is looking for volunteers to apply for the National Electrical Code (NEC) Panel that develops GFCI protection requirements. Read more at this blog to see how you can help.

October 26, 2022

Hey Ed, What’s the Deal With Big Hoses?

Curious about what size you need for different pipe sizes? Learn how to determine and calculate hose size in this edition of “Hey Ed!”

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October 25, 2022

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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October 24, 2022

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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October 21, 2022

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.

October 19, 2022

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!”

October 12, 2022

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!”