Savio GAIA 424 S Service Manual page 19

fig. 25
3 Loose the screws E and remove the hydraulic
actuator F (fig. 26).
F
fig. 26
Unscrew the six screws G, open the hydraulic
4
actuator and remove the membrane H. (fig. 27).
G
H
fig. 27
5 Assemble the part proceeding in reverse order.
E
E
I
Assembling the part, ensure to place the concave
side of the membrane towards the actuator plate I
(fig. 27).
D
When fixing the actuator to the valve, fit the refer-
ence shaft J in the seat of the valve (fig. 28).
C
fig. 28
Removal of the switch
n
1 Switch off the boiler; remove the front panel of the
case, the lower protection plate and lower the
control panel.
2 Remove the fork K that holds the d.h.w. pressure
switch L placed on the right side of the valve and
remove the switch (fig. 29).
3 Open the box and disconnect the switch.
4 Reassemble the switch proceeding in the reverse
order.
fig. 29
Removal of the valve and the diverter mechanism
n
1 Switch off the boiler; remove the front panel of the
case, the lower protection plate and lower the
control panel.
2 Drain the d.h.w. and the c/h circuits.
3 Completely loosen the connections to the hy-
draulic circuits indicated in fig. 30.
Diverter valve and d.h.w. pressure switch
J
L
K
15