Which procedures to be followed for the preparation of heat exchangers for a layup?
If a ship is to be laid up for an indefinite period of time:
- the saltwater side of the main condenser and other heat exchangers should be drained and dried out after closing the sea valves to prevent the formation of salt deposits
- the freshwater side of heat exchangers should be drained as well in case of laying up the vessel in cold areas to prevent frost damage