Category: Technical Tips

Flammable Refrigerants Hotly Debated

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

ENERGY STAR Verified HVAC Installation

ENERGY STAR is a brand that 90% of customers know, and one that influences their purchasing decisions. The ENERGY STAR […]

Want A Newbie Training Course?

Contractors from across the country answered ACCA’s survey on the technician training they needed.  Many will soon be pleased with the latest Qtech course for […]

Airflow Basics Part 2: The Lost Art of Choosing a Blower

Query:    You are going to change out an existing furnace that has a cracked heat exchanger.  You find a functioning 3-ton evaporator connected to […]

Airflow Basics – Part 1

Let’s look at the three basic components of airflow:  volume, velocity and pressure.  Volume  Standard air is air that is 70ºF with 50% RH, at sea […]

Does Your Residential Maintenance Service Plan Meet Minimum Standards?

Consumers and contractors don’t know that there is such a thing as a minimum standard for maintenance on residential systems. […]

High Efficiency Homes – Avoid Trouble Ahead

Behold, the home of the future!  The home with special high-efficiency windows, doors, appliances, and lights.  A space-age ventilation system that exhausts harmful pollutants and brings in healthy clean air for the […]

Sizing & Selecting HVAC Equipment for Proper Humidity Control

The leading causes for moisture/mold problems in buildings are related to envelope problems (i.e., leaks through roofs, walls, foundations, windows, […]

Does Your Maintenance Service Plan Meet Minimum Standards?

Consumers and contractors don’t know that there is such a thing as a minimum standard for maintenance on residential systems. […]

ACCA Announces ANSI Review Period for Two Standards

The Air Conditioning Contractors of America Educational Institute (ACCA-EI) Standards Task Team (STT) announces the third public review of BSR/ACCA […]

ACCA Releases Flammable Refrigerant Technical Bulletin

The Air Conditioning Contractors of America announces the release of Air Conditioning and Refrigeration Systems Using Flammable A3 Refrigerants, a […]

Updated EPA 608 Test and Book Available Through ACCA

We all should remember that the EPA regulations (40 CFR Part 82, Subpart F) under Section 608 of the Clean Air Act requires […]

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