In a continued effort to phase out the production and consumption of hydrofluorocarbons (HCFCs), the U.S. Environmental Protection Agency (EPA) will no longer allow manufacturers to build residential ducted and ductless HVAC equipment using the...
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A tentative interim amendment to the 2024 edition of the Uniform Mechanical Code is being submitted for public comment. UMC TIA 003-24 revises text in the 2024 edition of the UMC, Table 1102.3 (Refrigerant Groups, Properties, and Allowable...
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The Problem There are many HVAC helpers, apprentices and even experienced technicians that get tripped up on Delta T vs. Temperature Difference, or TD for short. They use them interchangeably or get them backwards. This article and embedded...
Read moreRefrigerants are blends of chemical substances utilized in an air conditioner’s coils to chill air by altering their section. Refrigerants take in warmth from the air surrounding the coils when compressed from a low-pressure fuel to a...
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