Commissioning
2
Installation and maintenance instructions for Buderus 500 - 24/S • 08/2006
31
Subject to modifications resulting from technical improvements!
Buderus • http://www.buderus-domestic.co.uk
z
Loosen the automated air vent one turn (fig. 39).
z
If necessary open the CH flow and CH return servicing
valves (fig. 40, item 1 and 2).
z
Connect filling loop (fig. 41).
z
Open both stop valves (fig. 41).
z
Fill the system to a pressure of approx. 1.5 bar (fig. 40,
item 3).
z
Shut both stop valves.
z
Disconnect the filling loop.
z
Vent all radiators from air starting with the lowest radiator
and working your way up to the highest point.
z
Check the pressure after venting. If the pressure has
dropped under 1.0 bar then top up the system as described
previously.
z
Disconnect the filling loop and cap off.
fig. 39 Automatic air vent
1
fig. 40 servicing shut off valves
CH Flow
CH return
Gas
1
2
3
fig. 41 Connecting filling loop
filling
loop
stop
valve
stop
valve
double
check
valve
external
MCW
supply
CH
return
