Description
Key aspects of a DX system:
- Direct Refrigerant Cooling: The refrigerant directly cools the air passing over the evaporator coil, rather than using a secondary coolant loop.
- Components: DX systems typically include a compressor, condenser, expansion valve, and evaporator.
- Application: Commonly used in window ACs, split systems, and some packaged units.
- Installation: DX systems, especially split systems, have limitations on refrigerant line length due to pressure drop and other factors.
- Control: DX systems can be controlled by adjusting the compressor speed, expansion valve position, and airflow.
- Advantages: Generally more energy-efficient than indirect systems for smaller spaces.
- Disadvantages: Can be more challenging to network and control in large, multi-zone buildings.