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Author: David Bixby

David C. Bixby has been active in HVAC industry codes and standards for 35 years and is currently secretary for the ACCA Codes Committee.

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Grounding and Bonding and Faults! Oh My!

Nuisance trips on outdoor HVACR equipment connected to GFCIs due to the 2020 NEC have created quite a stir. Many states in the U.S. have excluded this requirement due to the efforts of ACCA and others. Regardless of all this, your installed equipment needs to be properly grounded and bonded per the NEC.

CODE WARS: Press-Connect Fittings VS. Brazing for Refrigeration

There has been a “code war” raging over eliminating the use of listed press-connect fittings for refrigeration currently allowed by […]

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ACCA Proposes Airflow Balancing Instead of Duct Leakage Testing for Energy Code

Typically, a home energy rater will conduct duct leakage tests and leakage tests on the home’s building envelope in accordance with energy codes. ACCA has proposed adding a code exception to conduct an airflow balancing procedure instead, thus giving contractors an opportunity to provide a more valuable service. 

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Update on Mechanical Code Change Hearings + New Energy Code Proposals

See the major takeaways HVAC contractors should know from the ICC Mechanical Code Public Comment Hearings that took place in Pittsburgh last month.

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BREAKING: NFPA to Issue Delay of NEC GFCI Requirement for Outdoor HVAC – Forms Task Group

Learn more about the Standards Council of the National Fire Protection Association’s (NFPA) Tentative Interim Amendment (TIA) and what it could mean for your HVAC business.

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Where Have All the Colors Gone? Refrigerant Cylinders Change Color

Learn the color coding changes that were made by the refrigerant container industry and some expert tips on how HVAC technicians can avoid confusion in the field.

More States Act to Prevent HVAC Nuisance Trips in Response to GFCI Requirement in 2020 NEC – Will Yours?

Summary: ACCA and its members remain concerned about a new provision in the 2020 National Electrical Code (NEC) that requires GFCIs […]

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NTSB Investigations Recommend Methane Detection Systems in Homes

Learn more about the National Transportation Safety Board’s (NTSB) recommendation that methane detection systems and reference standards be made part of future codes and what this could mean for your HVAC business.

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NEC GFCI UPDATE – NAHB Submits Amendment to Delay Effective Date to 2023

Learn more about the National Association of Home Builders’ (NAHB) recently proposed amendment to the 2020 National Electrical Code (NEC) and what it could mean for your HVAC business.

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ACCA Challenges Rejection of Code Proposal for Attic Stairs

Learn more about the IRC – Mechanical Committee’s rejection of ACCA’s proposal to revise the International Residential Code and how this could affect the HVAC industry.

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Update on GFCI Nuisance Trips on Outdoor HVAC Equipment Related to 2020 NEC

Get the latest information on GFCI nuisance trips on outdoor HVAC equipment related to the 2020 NEC and learn how this could affect your HVAC business.

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Proposed Removal of Press-Connect Fittings for Refrigeration in Uniform Mechanical Code – For Now

Learn more about the latest modifications and revisions proposed for a variety of HVACR standards in the Uniform Mechanical Code, including the removal of press-connect fittings and how this could affect the HVAC industry.

When Good Codes Go Bad – ACCA Is on Guard

With guidance from the Codes Subcommittee, ACCA has been publicly fighting for our members against several “bad” code requirements. Sometimes […]

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ICC “Virtual” Code Hearings Scorecard – “Can you hear me now?”

See the highlights from the first-ever International Code Council (ICC) “virtual” Code Action Hearings and learn how these hearings could affect your HVAC business.

ACCA Weighs In on Proposed I-Code Changes: Get Involved at our April 6 Codes Coffee

This April the International Code Council’s (ICC) Committee Action Hearings (CAHs) will be held “virtually” for the first time.  This […]

ACCA Online Videos Assist Officials and Contractors in Verifying Code Compliance with Manuals J, S and D

ACCA helps contractors comply with building codes. We also help code officials understand HVAC system design. Especially when it comes […]

Flammable Refrigerants Hotly Debated

The issue of flammable refrigerants for use in residential HVAC applications has been hotly debated in the recent code development […]

Another Contentious Code Hearing on A2L Flammable Refrigerants for Residential Use

In past blogs and articles, I’ve reported on hotly debated issues related to mechanical code proposals allowing residential use of […]

Duct-related Changes to IAPMO’s 2018 Uniform Mechanical Codes

In February 2018, the International Association of Plumbing and Mechanical Officials (IAPMO) began shipping the 2018 editions of the Uniform […]

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