Accessing The Boiler; Flushing Out The Primary Side - PENSOTTI PCI 34 Instruction Manual

6.4 Accessing the boiler

All maintenance operations require one or more
of the boiler casing panels to be removed.
The side panels can only be removed after the
front panel has been removed.
Front panel:

Remove the fixing screws at the lower edge
of the front panel.

Grasp the lower part of the panel and pull it

outwards (fig. 1) and then up.
Left and right side panel:

Remove the fixing 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 fig. 1).
Grasp the left and right control panel support

brackets and pull them outwards, at the same
time rotating the panel downwards.
Unscrew the four fixing screws
cover.

6.5 Flushing out the primary side

Fill the boiler as per the filling 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 flush the system correctly, turn off
all radiators or fan coils. Open the filling loop
and drain cock simultaneously and allow the
water to flow through the boiler.
Open each individual radiator or fan coil,
allowing water to flow through. Then turn that
radiator or fan coil off and repeat for all
radiators or fan coil on the system.
Turn off the filling loop and close the drain cock open all radiators and open the filling to fill the system.
Continue to fill the system until the pressure gauge reads in the Green section of the gauge (14.5 psi = 1
bar)
In order to safeguard all waterside components the supplied Fernox Commissioning Kit must be used in its
entirety.
MAINTENANCE INSTRUCTIONS

.

and remove the
Fig. 2
Fig. 1
Fig. 3
Fig. 4
Fig. 5 Fig. 6
53