How does a two-stage compressor operate?

A two-stage compressor operates by utilizing two distinct compression processes to efficiently manage varying cooling or heating demands. This design allows the compressor to run at two different capacities, which enhances its performance in different temperature conditions.

When the cooling or heating demand is low, the compressor operates at a lower capacity, which improves energy efficiency and reduces operational costs. Conversely, during periods of high demand, the compressor can switch to its higher capacity, ensuring that the space maintains the desired temperature effectively. This capability helps maintain better humidity control and provides a more consistent temperature throughout the space.

The other options do not accurately describe the functionality of a two-stage compressor. A compressor that runs at one capacity for all conditions lacks the adaptability required for energy efficiency and comfort management. Similarly, a compressor that operates only at high capacity would not be able to efficiently handle low demand situations. Lastly, operating by alternating between off and on states does not reflect the continuous and adjustable operation of a two-stage compressor, which is designed to modulate its output for optimal performance.