Minimum one manometer covering a range of 0-6 bars must be installed to the system. The manometer must be placed in a manner easily visible from the charging point, and preferably, must be connected to the same point with the expansion tank.
The substances like dirt, sludge, sediment, etc., present in the installation water may result in failure of boiler and installation components, stress on heat transfer surfaces and decrease in efficiency. In order to prevent this, a sediment trap to be added to the system prevents penetration of such substances into the installation.
The air inside th e installation dissolves by increase of temperature and circulates through the system in aeriform. This results in cavitation in the installation, decrease in efficiency and noise. The air inside the installation can be removed by use of an air separator
The main duty of balance vessel is to provide thermal equilibrium through enabling mixing of cold fluid from the installation with hot water from the boiler. Additionally, they are used to compensate potential pressure differences in a system containing multiple pumps. The balance vessel must be positioned upright.
SIZING OF BALANCE VESSEL
In order for healthy operation of balance vessel, it must be designed in proper dimensions. The discharged water temperature of the boiler should be measured at top of the balance vessel. For this, a ½” sleeve must be welded on top of the vessel; also an air purger must be mounted.
Dimensions shown below are minimum dimensions required to be applied.