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When powering up the boiler (described in chapter 13) an automatic air purge program will run to vent the
boiler. During this program the pressure in the central heating needs to be checked, and when necessary,
topped up again.
again.
connections with the cap nut (3).
11.1 Hot water supply
Fill the hot water supply by opening the cold mains isolation valve.
Bleed the hot water installation by opening all hot water taps one at a time. Leave each tap to run until all air
has disappeared from the supply.
Flush with a minimum of 10 litres to rinse any residual contaminants from the hot supply and boiler.
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