yeah i thought about the unmatched possibility ill get the m/s numbers but no i got the trurn air with a ductulator duct is sealed and not kinked so i figured it was pretty close thanks for the tip about superheat though. makes sense.
The SST is warmer than the outdoor air.
The possible causes I can think of are overcharge, metering device over feeding & low indoor airflow.
We can eliminate the outdoor TXV over feeding so there's not much left. I wouldn't be surprised if it had both low airflow & was over charged.
An engineer designs what he would never work on.
A technician works on what he would never design.
heating needs more airflow because the coil is smaller. look it up
I did and in every rheem air handler manual i looked into they show the same cfm for heat or cool mode with a chart that shows cfm compared to static pressure and not one is over 400 cfm/ton and they will even accept as low as 350cfm/ton. Also we are regulated in california by calcerts and they never test for anything over 350cfm/ton period.