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

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SYSTEM PRESSURE

4.1

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.
B Check regularly that the pressure is maintained.
Fig. 7 Optimum pressure when cold (area A)
B 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 one of two types:
Optional integral filling kit, which is supplied with a white T shaped filling key.
•
An external filling loop, fitted valves and flexible hose.
•
1.5 bar
A
1 bar
Min
6 720 643 356a (2010/10)
Max
2
1 1
3
0 4
bar
SYSTEM PRESSURE
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