This was Posted Earlier but was moved
New Install--Outside unit and AHU--Heat Pump
10 Degree Slit on Air Temp inside-Ret and Supply
Superheat 10 Degrees--Tried Adjusting Charge--Superheat stayed 10 either way
Unit not Cooling Properly--Need 15-18 Degrees across Evap Coil.
R-22 System--Piston Metering Device.
Thanks