Technical

“Technical” articles describe troubleshooting scenarios and HVACR system design in-depth.

ARTICLES

HVAC Airflow Troubleshooting and the Top Tests and Tools to Help

Tony Gonzalez

November 30, 2024

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Airflow diagnostics made simple—discover how to ensure peak performance in HVAC systems.

Heat or Chill, the Market for Heat Exchangers in HVACs Stays Steady

Aniket Roy

November 9, 2024

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With stronger global temperature fluctuations and demand for HVAC systems growing, heat exchangers are rapidly becoming essential to an ever-expanding market.

FROSTlines

6 Essential Steps for Teaching CO₂ Refrigeration

A practical guide to instructing technicians about this low-GWP refrigerant

Don Fort

October 6, 2024

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CO₂ refrigeration systems demand both classroom knowledge and hands-on experience, which is why blending theory with practice creates top-notch technicians.

H2VAC: Using Hydrogen Fuel to Decarbonize Heating and Cooling

Powering electric heating and cooling equipment using hydrogen fuel cells can reduce reliance on fossil fuels – and strain on the electric grid.

Yussef Abou-Ghanem

September 28, 2024

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Discover how hydrogen fuel is poised to revolutionize HVAC systems by reducing carbon emissions and easing strain on electric grids, driving the industry toward a decarbonized future.

10 Things to Know Before Your First Mini-Split Call

Lianna Schwalenberg

August 21, 2024

One Comment

The first time a technician has to tackle a ductless mini-split can be nerve-racking, but by following these 10 tips, the job can be done without all the anxiety.

How a Fan Center Works

Understanding the basics key to troubleshooting older furnaces

Lianna Schwalenberg

July 13, 2024

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For technicians who run across older furnaces where air conditioners were later added, it pays to know how a fan center operates.

Nationwide 250 hp Boiler Achieves 5 ppm NOx Performance

July 26, 2023

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Equipped with an Oilon LN30 ultra-low NOx burner and Nationwide’s Eagle PLC-based Control System, the 250 hp package boiler achieved average emissions performance of 5 ppm NOx and 0 ppm CO (corrected to 3% O₂) during third-party testing.

Defining and Calculating Voltage Imbalance

Improper voltage is the one of the greatest causes of failed compressors in three-phase units

Paul Flora

June 28, 2023

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Saving one compressor will cover the cost of a voltage monitor and then some.

Harlan is New Business Development Manager at WAGO

June 6, 2023

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Amy Harlan, who has an extensive background in electronics and device connectivity, is the new business development manager for device connection technology at the global electronics technology firm.

Public Review of Proposed Revisions to ACCA Manual SPS (HVAC Design for Swimming Pools and Spas)

April 26, 2023

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The 30-day ANSI public review period closes May 14.

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Instructor/Facilitator Package: PEAK Performance for the Technical Professional

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2024 Uniform Mechanical Code Soft Cover w/Tabs

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2025 BNi Mechanical-Electrical Costbook (print edition)

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Section 608 Certification Exam Preparatory Manual 9th Edition V2

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Quick Guide to Refrig Cycle, Refrigerants, Components

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Low GWP Refrigerant Safety: Flammable & Mildly Flammable Refrigerants Manual

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Gas Heating: Furnaces, Boilers, Controls, Components

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Electrical Theory and Application for HVACR

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Heat Pump Operation, Installation, Service

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Air Conditioning Service Guide R-410A and R-22 Systems 2nd Edition

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ARTICLES

HVAC Airflow Troubleshooting and the Top Tests and Tools to Help

Heat or Chill, the Market for Heat Exchangers in HVACs Stays Steady

6 Essential Steps for Teaching CO₂ Refrigeration

H2VAC: Using Hydrogen Fuel to Decarbonize Heating and Cooling

10 Things to Know Before Your First Mini-Split Call

How a Fan Center Works

Nationwide 250 hp Boiler Achieves 5 ppm NOx Performance

Defining and Calculating Voltage Imbalance

Harlan is New Business Development Manager at WAGO

Public Review of Proposed Revisions to ACCA Manual SPS (HVAC Design for Swimming Pools and Spas)

PRODUCTS

Instructor/Facilitator Package: PEAK Performance for the Technical Professional

2024 Uniform Mechanical Code Soft Cover w/Tabs

2025 BNi Mechanical-Electrical Costbook (print edition)

Section 608 Certification Exam Preparatory Manual 9th Edition V2

Quick Guide to Refrig Cycle, Refrigerants, Components

Low GWP Refrigerant Safety: Flammable & Mildly Flammable Refrigerants Manual

Gas Heating: Furnaces, Boilers, Controls, Components

Electrical Theory and Application for HVACR

Heat Pump Operation, Installation, Service

Air Conditioning Service Guide R-410A and R-22 Systems 2nd Edition

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