A cover is a model question
Trane's AC care guidance says a protective cover must be removed before operation and warns against solid coverings that trap moisture. Trane AC maintenance guidance.
That supports a simple rule: do not wrap a unit that might run. It does not mean every brand needs Trane's cover or accessory. Ask whether your exact model needs any cover, which accessory is approved, and when to remove it. If the answer is no cover, you have one less task.
Keep a photo of the model label and the instruction page with your home records. If the unit was already covered when you moved in, have its identity and intended winter use checked before starting it.
Do not make a winter test your maintenance routine
We would not recommend a test run in cold weather just to exercise the AC. Ask for the approved outdoor operating range and whether this equipment has special cold-weather controls. The purpose is to prevent an improvised test from becoming the problem.
The same care applies to the power switch or disconnect. Ask whether seasonal power changes are allowed, whether any heater or control must remain powered, and whether the manual requires a waiting period before spring startup. Those answers belong to the installed equipment, not a neighbor's routine.
Set up an easy spring handoff
Record where the normal thermostat controls and filter are, who installed the system, and the last service date. From the ground, note leaves, a damaged cabinet, or anything close to the unit that might obstruct it. Leave panels and electrical connections closed.
Before the next cooling season, arrange any needed care and have the technician explain normal startup. We recommend making the winter and spring instructions part of the same visit, so you are not left trying to reconstruct them months later.
Your next action is to confirm the unit type and get a short, model-specific winter plan: cover, power, and spring startup. You should be able to follow it without opening equipment or guessing.