External Filling Loop (Sealed System Only) - Bosch External System 12/18 Users Instructions And Customer Care Manual

4

External filling loop (Sealed system only)

NOTICE: External filling loop
▶ If the filling loop does not look like the one shown in the figure below or you cannot find your filling loop, contact
your installer.
Once the external filling loop has been located, follow the instructions for re-pressurising the system.
1. Ensure that the valve is turned off and unscrew the blanking cap.
2. Attach the hose to the valves, screw on hand-tight.
3. Turn the handle/screwdriver slot through 90° to open the valve.
4. The handle/screwdriver slot will be in-line with the valves.
1.
1.5 bar
A 2
1 bar
1 1
3
Min
0 4
bar
5. When the pressure reaches between the 1 and 1.5 bar marks (zone A), turn the handle/screwdriver slot back, through 90°, to
close the valve.
6. The handle/screwdriver slot will be at 90° to the valves
7. Remove the hose and replace the blanking caps (a small amount of water will be present in the pipe).
If the pressure gauge reads more than 1.5 bar as a result of over filling, bleed one radiator until the pressure gauge
returns to between 1 and 1.5 bar.
Danesmoor External & External System– 6 720 809 792 (2013/10)
6.
Max
5.
External filling loop (Sealed system only)
4.
2.
6.
5.
4.
3.
3.
7.
9