What could happen if cold water is added to the Water System without stopping the fill?

What could happen if cold water is added to the Water System without stopping the fill?

• A. The automatic water drain could detect the cold water and drain the system.
• B. The pressure automatically increases.
• C. There is no effect.
• D. Water quality improves.

Answer: (A)

When cold water is added while the system is still filling, the control system detects an abnormal change in conditions (such as a sudden temperature difference or pressure shift) and responds by opening the automatic drain to relieve water. This safety action prevents overfilling, keeps pressure and temperature within safe limits, and maintains proper operation of the fill cycle. The other options aren’t the expected outcome: simply adding cold water won’t cause pressure to keep rising, nor will it inherently improve water quality, and it certainly isn’t a non-event—the system’s safety interlocks are designed to respond to such changes by draining.

When cold water is added while the system is still filling, the control system detects an abnormal change in conditions (such as a sudden temperature difference or pressure shift) and responds by opening the automatic drain to relieve water. This safety action prevents overfilling, keeps pressure and temperature within safe limits, and maintains proper operation of the fill cycle.

The other options aren’t the expected outcome: simply adding cold water won’t cause pressure to keep rising, nor will it inherently improve water quality, and it certainly isn’t a non-event—the system’s safety interlocks are designed to respond to such changes by draining.