Ariston EuroCombi Type C 23 MFFI, Servicing Instructions

Page: 14 / 32

Supplied By www.heating spares.co Tel. 0161 620 6677
14 B029
1.5
Access to the
Hydraulic Circuits
Fig. 1.37
Y
Y
Removing the D.H.W. (secondary)
exchanger
1.
Remove the screw “Y” (see fig. 1.37);
2.
Push the exchanger towards the rear of the
boiler, lift upwards and remove out of the
front of the boiler;
3.
Before replacing the exchanger ensure that
the O-rings are in good condition and repla-
ce if necessary.
Important!
Before any component is removed, the boiler
must be drained of all water.
Removing the gas valve
1.
Disconnect all the cables from the solenoid and modureg;
2.
Remove the spark generator;
3.
Release the top nut “W” using a 30 mm open ended
spanner (see fig. 1.33);
4.
Remove the screws “X” from the bottom of the gas valve pipe (see fig.
1.34).
Attention!!
The gas valve is connected with the two pipes
(as shown) with an O-ring connection.
Fig. 1.33
Fig. 1.34
Fig. 1.35
W
X
X
Fig. 1.36