System Pressure; Sealed Heating Systems - Bosch Worcester Greenstar 24 User Instructions

System Pressure

▶ If the boiler does not restart, contact Worcester, Bosch Group Appointments
team on: 0330 123 3366.
▶ Contact your installer in order to find a permanent solution to the problem.
6 SYSTEM PRESSURE
6.1

SEALED HEATING SYSTEMS

This boiler 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.
1 bar
Fig. 9 Optimum pressure when the boiler is cold (area A)
▶ Contact your installer or maintenance engineer if a permanent significant
decrease or increase in pressure is indicated on the pressure gauge.
The filling method will be an external filling loop, fitted valves and flexible hose.
NOTICE: To comply with the Water Authority regulations you must
disconnect the external filling loop after re-pressurisation.
20
1.5 bar
A
1 1
Min
0
Max
2
3
4
bar
6 720 811 923 (2014/07)