Title: +038=370.002-NT002._01-FDV-dokumentasjon - WILO Norge AS - VA_VVS 8401166 med flere - EKSPANSJONSKAR Contra-Flex L  2.5 - 6 bar.pdf
Commissioning If the factory-set pre-charge does not match the calculated pre- charge for the installation, the pre-charge must be adjusted. The water side of the vessel should be empty. Remove the valve cap (F) and adjust the pre-charge. Then replace the valve cap (F). In the commissioning sequence: 1. Open the bleed points. (fig. 6, fig. 7) 2. Fill the installation slowly until the fill pressure in the expansion vessel is 0.2 bar higher than the pre-charge. Bleed the system during filling. (fig. 8)3. Bleed the pipe to the expansion vessel. (fig. 8) 4. Close the bleed points. (fig. 9) 5. Heat the system as high as possible for half a day and bleed regularly.3. Bleed the pipe to the expansion vessel. (fig. 8) 4. Close the bleed points. (fig. 9) 5. Heat the system as high as possible for half a day and bleed regularly.For vessels with replaceable bladder, a free space of at least 600 mm must be available above the vessel. (fig. 4a)