COMMISSIONING
6 720 648 726 (2011/07)
47
10 COMMISSIONING
This section explains how to start up the boiler.
B
Complete the commissioning record log book after
carrying out the activities described below
(
Æ
section 10.5 „Commissioning record log book“,
10.1 FILLING THE HEATING SYSTEM
10.1.1 FILLING THE HEATING SYSTEM
The pre-pressure of the expansion vessel must be at
least equal to the static pressure (system height to the
centre of the expansion vessel), however never less than
0.5 bar.
B
Push on the control panel to open it (
Æ
B
Turn the maximum CH flow temperature dial [8] and
DHW temperature dial [10] anticlockwise to the "0"
position.
Fig. 70 BC10 basic controller
B
Turn the vent key through a quarter rotation [1] to
undo the boiler door lock (
Æ
detailed picture).
B
Push the fastener down [2] and open the boiler
door [3].
B
Remove the insulation cover of the pump group [4].
Fig. 71 Opening the boiler door
The boiler has an automatic air vent to purge the boiler.
To purge the boiler, every radiator in the heating system
must have a purge facility. In some situations it may even
be necessary to provide extra purging facilities at certain
locations.
B
Turn the cap of the automatic air vent through one
rotation to loosen it.
Fig. 72 Opening the automatic air purging unit
If a fault occurs, then refer to the servicing
manual or contact Worcester.
At initial start up, the boiler will start up as
soon as the system pressure exceeds
1.0 bar.
If the system pressure falls to below 0.2 bar
the boiler will stop and generate a fault
code.
888
1
10
9
8
7
6
5
4
3
2
1
6 720 648 726-069.1TD
11
1.
2.
3.
4.
6 720 648 726-071.1TD
6 720 648 726-072.1TD
