Engine 2014: Electricity

1. A During the cooling season, in the direction of flow, each terminal unit receives progressively cooler water supplied to its inlet.
2. B During the cooling season, in the direction of flow, each terminal unit receives progressively warmer water supplied to its inlet.
3. C During the heating season, in the direction of flow, each terminal unit receives progressively warmer water supplied to its inlet.
4. D Regardless of the season, in the direction of flow, each terminal unit receives the same temperature water supplied to its inlet.

Tip: press A-D to answer