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Category: Technical Tips

Inching Toward Victory: GFCI Exemption for Outdoor HVAC

An NFPA Industry Task Group with ACCA representation has recommended an amendment to the 2023 NEC to exempt ALL outdoor HVACR from having GFCI protection until September 1, 2026.

Give Me Static!

This introduction to static pressure discusses the basic elements of vital measurements and how they can be used. You can quickly identify HVACR equipment in new or like-new condition with airflow problems. This can save you a warranty call for a burned-out motor or maybe a callback for a poorly performing duct system (or incorrect fan speed setting).

Practice What You Preach – HVAC Inspection & Maintenance

Being consistent in your brand builds trust and improves efficiency. Consistency is essential, especially when running your maintenance calls for your clients. It’s critical that you establish trust with clients, which can lead to better customer service, improved client relations, and less customer churn. This article discusses the importance of consistency when performing HVAC maintenance and some things you can do to build better consistency.

Hey Ed, How Come the Air Coming Out of the Vent Is So Much Louder at Work Than at Home?

In this edition of “Hey Ed”, Ed discusses why the air coming out of the vent is so much louder […]

COVID Killing Filters

New research shows that when a common antiseptic is applied to filters… they can KILL COVID-19! But, upon looking at the research, questions emerged.

Hey Ed, Which Is Heavier – Dry or Damp Air?

In this edition of “Hey Ed”, Ed discusses which is heavier – dry or damp air in Manual P.

ACCA Energy Code Proposals Approved

Recently, the International Energy Conservation Code (IECC) Committee approved proposals submitted by ACCA for public comment. The proposals add the option of conducting a duct airflow balancing procedure per ACCA 5 QI, as well as adding ACCA Manual D, to ensure a more efficient HVAC thermal distribution system.

Hey Ed, Do Furnaces Dry Out the Air?

In this edition of “Hey Ed”, Ed discusses if furnaces dry out the air in Manual P.

Hey Ed, Is There One Measurement We Can Take, Truly Giving Us an Idea of a System’s Performance?

In this edition of “Hey Ed”, Ed discusses if there is one measurement we can take, truly giving us an […]

Either You’re Right or You’re Wrong

Over the next few months, Ed Janowiak will cover topics about measuring airflow, focusing on airflow measurements and how important it is to follow “the rules.” This month, he’s covering static pressure measurement.

3 Month Forecast – HOT

Bottom Line Up Front: It’s going to be warm. But don’t quit reading too soon, see “Get Good” at the very end of this article!

Hey Ed, Where Is a Drip Leg Meant to Be Installed?

In this edition of “Hey Ed”, Ed discusses where a drip leg is meant to be installed.

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