Which type of systems must be specifically designed to not be installed outdoors?

Medical air compressors are specifically designed to be installed indoors for several important reasons. These systems are crucial for supplying medical air to hospitals and healthcare facilities, and their operation relies on a controlled environment.

Firstly, medical air compressors generate heat during operation, and placing them outdoors could expose them to varying temperature fluctuations and weather conditions that can affect their efficiency and performance. Indoor installations help maintain a consistent and optimal operating temperature.

Secondly, these compressors require a stable electrical supply and protection from moisture, dust, and contaminants that can be present outdoors. Such conditions can lead to premature wear, malfunction, or even failure of the equipment, which is critical to patient care.

Additionally, code regulations and standards often dictate that medical air compressors must be situated within a facility to ensure compliance with safety and operational guidelines, further emphasizing the need for an indoor installation.

This careful consideration is not necessarily applicable to other systems listed, as they have different design and environmental needs that may allow for outdoor installations under the right circumstances.