Ariston microGENUS 23 MFFI Servicing Instructions - Page 11
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Also for Ariston microGENUS 23 MFFI: Installation Instructions Manual (25 pages), User Manual (24 pages), Servicing Instructions (28 pages)
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Removing the gas valve
1. Disconnect all the cables from the solenoid and
modureg;
2. Remove the spark generator (see previous section);
3. Release the top nut "W" (F
4. Remove the screws "X" from the bottom of the gas valve
pipe (F
. 1.31);
IG
5. Remove the gas valve (F
W
47.eps
48.eps
38.eps
B063
. 1.30);
IG
. 1.32).
IG
F
. 1.30
IG
X
X
F
. 1.31
IG
F
. 1.32
IG
1.6
A
CCESS TO THE
Important! Before any component is removed, the boiler
must be drained of all water.
Removing the D.H.W. (secondary) exchanger
1.Remove the screws "Y" (F
2.Push the exchanger towards the rear of the boiler, and lift
upwards and remove out of the front of the boiler
(F
1.35);
IG
3.Before replacing the exchanger ensure that the O-rings
are in good condition and replace if necessary.
22.eps
21.eps
68.eps
W
C
ATER
IRCUIT
1.33 + F
1.34);
IG
IG
Y
F
. 1.33
IG
Y
F
. 1.34
IG
F
. 1.35
IG
11