System Pressure; Sealed Heating Systems - Worcester Greenstar i System Compact ErP Series User Instructions

4

System Pressure

4.1

Sealed heating systems

This appliance is fitted to a sealed heating system which is pre-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.
▶ Contact your installer or maintenance engineer if a permanent significant decrease or increase in pressure is indicated on the
pressure gauge.
Fig. 4 Optimum system pressure when your boiler is cold (area A)
▶ Use the external filling loop to re-pressurise your boiler, refer to the following section 4.2.
NOTICE: To comply with the Water Authority regulations you must remove the "filling key" or disconnect the
external filling loop after re-pressurisation.
Greenstar i System ErP - 6 720 813 281 (2014/09)
1.5 bar
A
1 bar
1 1
Min
0
Max
2
3
4
bar
System Pressure
11