Access To The Sealed Chamber; Emptying The Primary Circuit - Biasi RIVA ADVANCE HE M110.24SM/C Service Manual

Fig. 2.4
5 Remove the screws E and remove the service
panel (Fig. 2.5);
If the external temperature probe (optional) is fitted fol-
low the steps 6 to 9.
6 Remove the screws F and remove external tem-
perature probe lid.
I
E
Fig. 2.5
7 With the help of a screwdriver disconnect the ter-
minal block G (Fig. 2.6).
Remove the clamp H that holds the cable.
8
H
Fig. 2.6
General access and emptying hydraulic circuits
9 Pass the terminal block connected to the boiler
through the hole of the control panel lid (Fig. 2.7).
Fig. 2.7
10 Remove the screws I and remove the control pan-
el lid (Fig. 2.5);
2.4
I
J
F
G
Fig. 2.8
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 J as indicated in Fig. 2.8
and remove the lid.
2.5
Close the c.h. circuit flow and return cocks K.
1
(Fig. 2.9).

Access to the sealed chamber

J

Emptying the primary circuit

3