To ensure the efficient and stable operation of LiBr absorption chillers and heat pump, maintaining the system's vacuum level is critical. Hope Deepblue employs the following strategies to achieve this:

 1. Auto purge system combining multi-ejector&fall-head technology: speedy vacuum purging and high vacuum degree maintenance

This is a new, high efficiency automatic air purge system. The ejector functions as a small air extraction pump. DEEPBLUE automatic air purge system adopts multiple ejectors to increase the air extraction and purge rate of absorption chiller. Water head design can help to evaluate vacuum limits and maintain a high vacuum degree. The design with features and highness can provide a high vacuum degree for every part of chiller at any time. Therefore, oxygen corrosion is precluded, service life time is prolonged and optimal operating status is maintained for chiller.

 2. Combination of auto-purge valve with manual purge valve to ensure double protection

Depending on user requirements, the unit can be equipped with an automatic purge valve. When non-condensable air accumulate in absorption chiller or absorption heat pump, the valve automatically activates to extract air from the air chamber and the unit. The purge duration and intervals are system-controlled. To facilitate inspection and maintenance of the automatic valve, the unit is also equipped with manual valves, to ensure double protection for the system’s air-tightness.