49
7.3 Accessing The Boiler
All maintenance operations require one or
more of the boiler casing panels to be re-
moved.
The side panels can only be removed after
the front panel has been removed.
Front panel:
●
Remove the
fi
xing screws at the lower edge
of the front panel.
●
Grasp the lower part of the panel and pull
it outwards (see
fi
g. 14) and then up (see
fi
g. 15).
Left and right side panel:
●
Remove the
fi
xing screws at the front and
lower edge of the side panel to remove.
●
Grasp the bottom of the panel, move it
sideways and then upwards to remove it.
To access the electrical connections of
the control panel, proceed as follows:
●
Remove the front panel (see
fi
g. 14 and
fi
g.
15).
●
Grasp the left and right control panel sup-
port brackets (see
fi
g. 18) and pull them
outwards, at the same time rotating the
panel downwards.
●
Unscrew the four
fi
xing screws (see
fi
g. 19)
and remove the panel back piece.
7.4 Flushing Out The Primary Side
●
Fill the boiler as per the
fi
lling instructions.
●
Using a drain off cock on the lowest point
of the system allow the water to drain from
the system and boiler.
●
In order to
fl
ush the system correctly turn
off all radiators open the
fi
lling loop and
drain cock simultaneously and allow the
water to
fl
ow through the boiler.
●
Open each individual radiator allowing wa-
ter to
fl
ow through then turn that radiator
off and repeat for all radiators on the sys-
tem.
●
Turn off the
fi
lling loop and close the drain
cock open all radiators and open the
fi
lling
to
fi
ll the system.
●
Continue to
fi
ll the system until the pres-
sure gauge reaches 1.0 bar.
Fig. 14
Fig. 3
Fig. 4
Fig. 4
Fig. 5
Fig. 6
Fig. 15
Fig. 18
Fig. 19
Fig. 16
Fig. 17
