New American Standard S9V2 Furnace Electric Usage Seems High?
I recently had a American Standard S9V2C100U5PSBB installed in our house. I was doing some power usage investigation at my main circuit breaker panel and found that when my furnace is running in first stage set on medium airflow (default) setting, furnace display shows 1400 CFM, I am getting a power draw between 850-900 watts on my True RMS Amp clamp (7.0-7.5amps @ 120v at panel) right at the dedicated breaker on my panel. I had the installing company out today fix some other issues and they did a total static pressure test and had 0.25" WC as the reading so its not a restriction. I pulled the Heating airflow chart from the manufacturer and on medium airflow setting 1483cfm, and a static pressure of 0.3, the chart shows I should be seeing 310 watts from the system? Am I reading this chart wrong or something because my system is pulling almost 3x what the manufacturers table is saying when I am getting 850-900 watts?