Access To The Sealed Chamber; Emptying The Primary Circuit - Biasi Riva Plus HE M296.24SR/C Service Manual

GENERAL ACCESS AND EMPTYING HYDRAULIC CIRCUITS
figure 2 .4
5 Remove the screws E and remove the service panel (Figure
2.5);
6 To gain access to the electronic regulation PCB remove the
screws F and remove the control panel lid (Figure 2.5);
f
e
figure 2 .5

2 .4 access to the sealed chamber

G
G
figure 2 .6
To gain access to the parts contained in the sealed chamber it is
necessary to remove the lid of the sealed chamber.
For this purpose, remove the front and side panels of the case,
remove the screws G as indicated in Figure 2.6 and remove the lid.
- 6 -

2 .5 emptying the primary circuit

1 Close the c.h. circuit flow and return cocks H (Figure 2.7).
figure 2 .7
f
2 Remove the front and right panels of the boiler.
3 Open the drain tap I (Figure 2.8) until the boiler is completely
emptied.
4 Close drain tap again once the emptying has been complet-
ed.
figure 2 .8
h
i