Method for maintaining liquid pressure in super heated water heating circuit while keeping volume of pressure relief cylinder low operates by removing some water from circulating system when pressure exceeds set level

摘要

The pressure control operates by removing some of the water from the circulating system when pressure in the system exceeds a set level. The water is transferred to a collecting reservoir (4). When the water temperature in this reservoir exceeds a set level, water from a cistern (3) open to atmosphere is allowed to enter the reservoir to cool the overflow water.