Patent ID: 7891573

Claim:
A method for manufacturing at least one HVAC component adapted to connection to a building's HVAC system, wherein the HVAC component delivers a calibrated amount of air to the building's HVAC system, the method comprising the acts of: forming a first HVAC component, said forming including: forming a first housing with a first airflow passage configured and adapted to connect to HVAC ducting installed in a building with the first airflow passage in fluid communication with the HVAC ducting, attaching a first airflow regulator to the first housing and, the first airflow regulator adapted to regulate the airflow through the first airflow passage, attaching a first airflow detector to the first housing at a first location, the first airflow detector adapted to measure a measured airflow through the first airflow passage; connecting a first controller with a memory to the first airflow regulator and to the first airflow detector, the first controller configured and adapted to receive a measured airflow valve from the first airflow detector and command the airflow regulator to change the amount of air moving through the first airflow passage, calibrating the first HVAC component to deliver an actual volumetric airflow, said calibrating including: moving air through the first airflow passage, obtaining a measured airflow by measuring the airflow through the first airflow passage with the first airflow detector, obtaining an actual volumetric airflow by determining the airflow through the first airflow passage with a calibrated test system, determining a correction to convert the measured airflow to the actual airflow, and applying the correction to the first controller, wherein the first controller: commands the first airflow regulator to increase the airflow through the first airflow passage when the actual volumetric airflow is below a desired airflow, and commands the first airflow regulator to decrease the airflow through the first airflow passage when the actual volumetric airflow is above a desired airflow.