It is possible to store an air compressor in a garage, but only in an insulated one. Sub-zero temperatures can have many adverse effects on compressed air equipment. The most obvious is that compressed air creates condensation. Condensation freezes when the temperature drops below zero. It can lead to short-term or long-term failure of the compressor equipment. Follow the power tools storage tips. Ideally, the temperature in the room where the compressor equipment is installed should not fall below + 4. But if it does happen, you should be aware of the effects on your compressed air equipment.
Do not leave an air compressor full during storage. Air compressor oil tends to thicken at low ambient temperatures, reducing its lubricating properties. Thicker oil also increases the energy consumption required to spin the propeller, thereby increasing tractive effort and stress across the entire drive. It can shorten the life of your compressor motor. Due to moisture, low ambient temperatures can freeze the piping inside the compressor equipment. In colder ambient air, dryers tend to operate more efficiently. There is a danger that the moisture they are trying to dry will be cooled to the point that it freezes inside the dryer chamber. It can cause internal blocking of the dryer and damage the heat exchanger, possibly cracking in it.
Besides, the drain valve on the dryer can also block while storing in a cold garage. It will, of course, not block the airflow through the dehumidifier. But the condensate will stop draining out. Therefore, even though the dehumidifier will cool the air, moisture will remain in it. So, dehumidification will become ineffective. When using dryers at low temperatures, humid inlet air can begin to freeze inside the piping, causing system blockages. Following the rules of storage, you will prevent possible problems.