External Filling Loop - Bosch Worcester Greenstar Si Compact ErP User Instructions

System Pressure
4.5

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.
▶ To comply with Water Authority regulations you must disconnect the external filling loop after re-
pressurisation.
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
1 bar
1 1
Min
0
bar
Fig. 6 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.
14
6.
Max
2
5.
3
4
4.
2.
6.
5.
Greenstar Si Compact
4.
3.
3.
7.
- 6 720 813 279 (2014/09)
ErP