Technical information

60
7.5 ACCESS TO THE WATER CIRCUIT
7.5.1. REMOVING THE D.H.W. (SECONDARY) EXCHANGER
(MFFI ONLY)
1. Remove the two allen screws “A1” (FI
G
. 7.36);
2
.
P
ush the exchanger towards the rear of the boiler, lift
u
pwards and remove from the front of the boiler (F
IG.
7.37 - 7.38);
3. Before replacing the exchanger ensure that the O-rings
are in good condition and replace if necessary.
Important! Before any component is removed, the boiler
m
ust be drained of all water.
FI
G
. 7.36
FIG. 7.37
FIG. 7.38
7.4.2. RE
MOVING THE SPARK GENERATOR
1. Disconnect the electrical connection “Y” from the spark
g
enerator (F
IG.
7.34);
2. Remove the screws “Z” from the bottom of the spark
generator (FI
G
. 7.35);
4. Remove the spark generator.
FI
G
. 7.34
FIG. 7.35
Y
Z
A1
A1