The condenser that sits outside your home is built to withstand the elements, so covering is not needed to protect it. Covering can prevent debris from getting inside your unit, but if the unit is accidentally turned on before the cover is removed it can damage your cooling system.
That’s why we recommend leaving it uncovered but getting an annual check-up before turning it on. Our technician will be sure to remove any debris in addition to the regular inspection and cleaning, so you can be confident that your system is giving 100% throughout the summer.