A charge compensation tank is a component found in large Multi-Zone systems that helps balance the refrigerant levels. Because different zones may be on or off at different times, the amount of gas needed in the loop changes constantly. This tank provides a place for excess refrigerant to "rest" when only a few heads are running. This ensures your Inverter Compressor always has the perfect amount of gas for peak efficiency. You can find technical details on these systems in the Technical Data section for Cooper&Hunter. It is a hallmark of Professional Grade engineering. Proper maintenance of the refrigeration loop is essential for your Warranty Policy. It’s one of the many reasons our multi-zone systems are so reliable.