Originally Posted by
dsprice
We design our systems to deliver 350 cfm's at .5 esp. After setting the blower speed and verifying our static, we do the air balance. As it turns out, we do deliver what we designed better than 95% of the time. This includes multi system houses, damper systems, upflows, horizontals, and any combination of.
The company I work for does 80% of RNC in our area. Good enough for a field test?
I don't want to come across as being a know-it-all but anyone who says static pressures don't matter is wrong. Air flow is probably more important than mechanics in our industry. It's also the most difficult to understand.
If your static pressures aren't right, than nothing else about your system will be right.