Low-pressure chillers operate in a vacuum and will stay in a vacuum if the equipment room is not warm enough to keep the refrigerant warm.

Question

Quizplus · Accepted Answer

Low-pressure chillers operate under a vacuum to facilitate the boiling of the refrigerant at a lower temperature and pressure. If the equipment room is too cold, the refrigerant may not absorb enough heat to vaporize, causing the system to remain under vacuum conditions.

Low-Pressure Chillers Operate in a Vacuum and Will Stay in a Vacuum