ANSI/ASHRAE 40-2025: Testing AC and Heat Pump Equipment
Did you know that a heat pump can act as both a heater and an air conditioner? This is because a heat pump uses a…
SMACNA Fire, Smoke & Radiation Damper Installation for HVAC
Fire and smoke dampers are installed in ductwork, ceiling cavities, and other barriers. If a fire breaks out, they are designed to close and suppress…
ANSI/ASHRAE 193-2010 (R2024): HVAC Equipment Airtightness
An airtight building envelope and HVAC ducts result in a more precise ventilation system that can provide the correct amount of fresh air. When there…
IEC 60335-2-104 Ed. 2.0 en:2021— Recycling Refrigerants
When refrigerants are mishandled, they can cause environmental contamination and disease. Regulations and standards govern technician training, where and how refrigerants are sold, equipment, and…
2024 International Mechanical Code (ICC IMC-2024)
The International Mechanical Code (IMC) is in use or adopted in 46 US states, the District of Columbia, New York City, Guam, Puerto Rico, and…
ASME B40.100-2022: Pressure Gauges And Gauge Attachments
Since the 1800s, pressure gauges have been reliable, accurate, and overall crucial components of most processing systems because they are easy to read to help prevent…
ANSI/ASHRAE 120-2022: Flow Resistance of HVAC Ducts and Fittings
Pressure is key for HVAC system operations, and the many factors that can adjust the airflow, thus influencing alterations in pressure, should be measured and…
2021 International Energy Conservation Code (ICC IECC-2021)
In our solar system, energy begins with the sun. The core’s extreme pressure—250 billion atmospheres—and temperature—15.7 billion kelvin—drives fusion, resulting in a decrease in mass…
BACnet: Building Automation Control Network, ANSI/ASHRAE 135
A building is like an organism, with distinct systems and intricacies aligned in overarching purpose to assure efficiency, comfort, and even safety for the many…