Main Electronic P.c.b. Box - Biasi RINNOVA ADAPTIVE M300V.2025 SM Service Manual

GENERAL ACCESS AND EMPTYING HYDRAULIC CIRCUITS
2 .4 Main electronic p .c .b . box
Warning: isolate the boiler from the mains electrici-
ty supply before removing any covering or compo-
nent .
Terminal block lid removal
To gain access to the parts located inside the control panel pro-
ceed as follows:
1 Remove the front panel of the case.
2 Turn the control panel "F" (see section "2.3 Control panel" on
page 5).
3 Unscrew the screw "G" and lift the cover "H" to access the
electric power supply terminal block, remote and external
sensor (Figure 2.5).
Figure 2 .5
4 Rotate the lid (Figure 2.6).
Figure 2 .6
Main electronic p .c .b . lid removal
To get access to the main electronic p.c.b.:
5 Unscrew the screw "I" (Figure 2.7).
- 6 -
G
H
F
Figure 2 .7
6 Free the hooks indicated and rotate the cover "K" and the lids
"J" (Figure 2.8).
K
J
Figure 2 .8
7 Free the hooks indicated and rotate the cover "L" (Figure 2.9).
Figure 2 .9
I
I
L