This is a generic chart. If you have an oversized indoor unit, the temperature rise will typically be a couple of degrees cooler. Different brands vary some as well. But it is a good starting point for a heat pump with the strip heat help off.
Note: There does not seem to be a way to make the columns line up right.
Yeah the concept of heat pump is neat, in heat mode outside unit is Evap. Yesssir !
Thanks for the chart Kevin. This absolutely will help me diagnose heat pumps better (with elements off). I just got to learn so much its unbelievalbe ! Infact there is so much to learn in this industry, I love it!
Next is to master boilers...we don't have many here, well I say maybe 25-30 percent, but everytime I get a call to do a pm on a boiler it makes my day
The problem with relying on temp rise alone is that the airflow greatly varies - you can't assume that the installer set the blower speed correctly.
Superheat/subcooling, compression ratio, indoor airflow, and amp draw theoretically can tell you exactly what's happening in the system.
General public's attitude towards our energy predicament:"I reject the reality of finite resource depletion and substitute it with my own; energy is infinite, we just need an alternative storage medium to run the cars on. The economy can grow indefinitely - we just need to "green" everything! Technology is energy! Peak what?"
hvacmac7, you are right. once the panel is off, the pressures do generally go high. I never take pressures with panels off. I think its the air volume that goes through the coils is not enough and hence impacting the pressures in the coils and amping of the compressor.
*air flow and air volume are two different measurements*