Turn on the cold mains supply and allow
the mains water to flush through the
pipework, partially filled radiator and
return. Allow the water to drain out to a
convenient point outside until clear.
13
When complete fill and vent the
radiator and allow to circulate for 30
seconds. Repeat this process on each
radiator until complete. Always open
up the next radiator, before turning off
the cleansed radiator. Once all radiators
have been cleansed, open the domestic
hot water port, then close the central
heating port. This flushes the indirect
coil inside the cylinder.
14
Check jubilee clips are secure before and during operation.
Step-by-step
Turn OFF the HTV isolation valve 2.
Open the heating circuit only (two or
three port valve) leaving the cylinder
flow closed. Check all radiators and
bypass are turned off, leaving the
furthest radiator from the boiler open.
12
Having completed the previous step,
turn ON the HTV isolation valve 2 on the
return to the boiler and turn OFF the
HTV isolation valve 1 from the system,
close the DHW port and allow the cold
water to flush through the boiler and
RapidFlush filter.
15
To Next Page
