External Filling Loop - Bosch Worcester Greenstar 27i System Compact User Instructions

4.2 EXTERNAL FILLING LOOP

NOTICE: External filling loops
▶ 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. Unscrew blanking cap.
2. Attach the hose to the valves, screw on hand-tight.
3. Turn the handle/screwdriver slot through 90° to open the valves.
4. The handle/screwdriver slot will be in-line with the valves
1.
1.5 bar
A
2
1 bar
1 1
Min
0 4
bar
Fig. 10 External filling loop
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.
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.
Greenstar i System Compact – 6 720 807 727 (2013/05)
6.
Max
5.
3
4.
2.
6.
5.
SYSTEM PRESSURE
4.
3.
3.
7.
15