That is a scroll compressor. Supposedly they can start quickly after shutting down although with the non-bleed TXV on the high SEER system that could be a challenge. That unit does have a full start kit according to the Trane parts program.
Trane includes a tiny liquid line drier in the unit. They recommend against external driers. What should have been done is a suction drier put in upon startup (in cooling mode only) and removed after a week or 2.
Turning a high SEER scroll unit with demand defrost off in the 20 degree range is costing you money. If anything, run it down into the single digits before shutting off. An outdoor stat can do that automatically.