TRANE RTHD Oil Level Check

I have read two different ways to do this check. One is to run fully unloaded for 20 minutes, sit for 30 minutes, then check.. The other run fully loaded for 20 minutes, sit for 30 minutes then check.. Both of these are TRANE documents. Need help figuring out which one to use. Your response is appreciated.

Here's the model number if that would help.
MODEL # RTHD UD1F XC OU AG2A 4RAL G2C2 RAHA VCQA EXBA DXY33BL UAXX XXRX VC

On a bulletin on a change to the LLS (bulletin literature ref: RLC-SVD02B-EN) it advises that you contact techservicepueblo@trane.com for any questions.

My bulletin is dated 2006 so hopefully the contact details haven't changed...