I've recently bought a house and need to move two radiators before moving
in, the central heating system is run of a Worcester Bosch 24CDi BF combi
boiler (sealed primary system).
So my question is this, when I want to drain the system, do I simply shut
off the boiler (on the control panel and at the supply), open the drain cock
and the radiator air vent until water stops?
Conversely when I have moved the radiators do I simply reverse the procedure
and fill the system (using the filling key) until the gauge indicates
Hope someone can shed a little light on this subject.
Good point, reading through the installation instructions it says the
expansion vessel initial charge is 0.5 bar, so the pressure does need to
increased. I'll use 1 bar and keep an eye on the operating pressure.
Thanks for your help
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