Airflow, HVAC Service, NCI Article Library, Static Pressure Testing
It's 30 degrees outside and the heat pump is running. Let's say it's a 3 ton unit. What airflow should the equipment deliver through the system and what should the BTU output of that system be under current weather conditions? Last month, NCT included a HeatMaxx...
Airflow, Installations, Measurement, NCI Article Library, Static Pressure Testing, Testing and Balancing
There's a fast test for a new installation that is highly accurate and takes just a few minutes. You can get system CFM by measuring pressure drop over a new coil. You simply plot the pressure drop on the coil engineering data sheet and read the airflow passing...
Diagnostic, Duct Renovation, Measurement, NCI Article Library, Performance-Based HVAC, Static Pressure Testing, Testing and Balancing, Ventilation
Do You Know How External Filter Racks Impact Total External Static Pressure? A few weeks ago I was asked a question about finding the proper location to obtain the entering static pressure reading on an upflow gas furnace using an external filter rack. This is one of...
Best Practices, Diagnostic, HVAC Service, Installations, NCI Article Library, Testing and Balancing
"For Chris Farris, successful businesses are built on three simple, but often forgotten principals. "Don't cut corners, do it right the first time, and the customer is always right", he explains. "It all comes down to having genuine respect for all of your customers."...
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