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
For vessels with replaceable bladder, a free space of at least 600 mm must be available above the vessel. (fig. 4a)6. When the water temperature has fallen to approx. 50 °C, top up the installation to 0.3 bar above the pre-charge of the expansion vessel. Ensure that the filling hose is bled.Install the vessel in the return line, as close as possible to the boiler, on the intake side of the pump. Install the vessel so that the water it contains cannot circulate. 1. Apply PTFE tape (G) (do not use hemp!) to the connection of theexpansion vessel. (fig. 5)2. Connect the expansion vessel to the installation (Flexconsole, T-piece or expansion pipe).2. Connect the expansion vessel to the installation (Flexconsole, T-piece or expansion pipe).3. If possible, it is advisable to place the optional connection group in the expansion line for easy maintenance.3. If possible, it is advisable to place the optional connection group in the expansion line for easy maintenance.3. Maintenance and service