Annual Maintenance; Warnings; Dismantelling The External Panels; Emptying The C.h. System - Biasi Riva Plus Installation & Operation Instructions

17.

Annual Maintenance

The procedures detailed in this chapter must be carried out only by a professionally quali ed
person. Thus you are advised to contact an Authorised Service Agent. For ef cient and con-
tinuous operation of the boiler you are advised to have, at least once a year, maintenance and
cleaning done by an Approved Service Person. Isolate the appliance from the electricity sup-
ply by turning off the fused spur isolation switch adjacent to the appliance and turn off the gas
cock, before carrying out any procedures, whatsoever, for cleaning, maintenance, opening or
dismantling boiler panels.
Front Panel:
• Loosen the three screws A (Fig. 17.1)
• Lift and remove the panel.
Side Panels:
• Loosen the screws B (Figure 17.2). Bring the bottom of the panels away from the boiler and
lift them, freeing them from the top hooks.
Figure 17.1
• Close the pressure reducing automatic ll
valve (28 on Section 4)
• Open the central heating drain cock (F in
Fig. 17.3).
• Empty the c.h. system.
• Close the central heating drain cock (F in
Fig. 17.3).
• Open the pressure reducing automatic ll
valve (28 on Section 4)
42 RIVA PLUS MANUAL
17.1
17.2 Dismanteling the external panels:
A
A
17.3 Emptying the Central Heating System:

Warnings:

C
B
B
C
B
B
Figure 17.2
Figure 17.3