Repressurising System - Baxi Duo-tec Combi HE A Range User's Operating Instructions & Important Warranty Information

3.0 Repressurising System

3.1 Central Heating System Pressure
1. The normal operating water pressure is between 1
and 2.5 bar (Fig. 1). If the pressure exceeds 3 bar the
safety pressure valve will operate and a fault is indicated.
2 Contact your installer.
1
3
2. It may be necessary to repressurise the system
occasionally (Fig. 2). A filling device (the filling loop) will
be fitted on the system. This will be on the boiler itself,
0 4
or on pipework near to the boiler.
bar
3. If you are unsure of its position, or cannot identify it,
Fig. 1
consult the installer who fitted the boiler.
Normal Pressure
4. The filling loop consists of two taps and a separate
copper pipe with connection fittings.
5. Only when repressurising should the copper pipe be
connected between the two taps. Ensure that the nuts
2
on the pipe ends are tightened onto the taps.
1
3
6. Fully open one of the taps first, and then while
watching the pressure gauge, carefully open the second
tap.
0 4
Fig. 2
bar
7. When the needle on the gauge is indicating 1 or more
turn both taps off.
Requires
8. Disconnect the copper pipe from the taps (a small
Repressurising
amount of water may be present) and remove it. Keep
the pipe in a safe place for future use.
6
© Baxi Heating UK Ltd 2008