External Filling Loop (Sealed System Only) - Worcester Greenstar Danesmoor External Regular User Instructions

External filling loop (sealed system only)

5 External filling loop (sealed system only)
This appliance is fitted to a sealed heating system which is pressurised. Your installer will advise you of the minimum and maximum
pressure indicated on the pressure gauge.
▶ Check regularly that the pressure is maintained.
▶ If the pressure gauge reads less than 1 bar then the system requires re-charging.
– Check for leaks on heating system (pipe work and radiator valves).
▶ Contact your installer or maintenance engineer if a permanent significant decrease or increase in pressure is indicated on the
pressure gauge.
– Constantly having to re-pressurising the heating system should be investigated as the concentration of inhibitor in the
system will be reduced; this can result in corrosion within the heating system.
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
1.5 bar
A
1 bar
1 1
Min
Fig. 1 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.
8
1.
6.
Max
2
3
0 4
bar
Greenstar Danesmoor External
4.
2.
6.
5.
5.
2022+
4.
3.
3.
7.
& External System – 6 721 844 015 (2022/01)
2022+