Removing The Pump; Removing The Heating Expansion Vessel - Ariston GENUS HE 35 Plus Installation And Servicing Instrucnion

18.5.10 Removing the pump

1. Carry out step 18.2.1 ;
2. Open the electrical box cover as in
step 18.3.1 (Fig. 18.6);
3. Remove the pump plug from the
control board and earth plug from
earth socket "T1" (see Fig. 18.69);
T1

18.5.11 Removing the heating expansion vessel

1. Carry out step 18.2.1 ;
2. Remove the screw "U1" (see Fig.
18.72);
U1
Fig. 18.72
18.5.12 Removing the D.H.W. expansion vessel
1. Remove the casing as in step 18.2.1 ;
2. Remove the nut "V1" with a No.24
spanner (see Fig. 18.75);
V1
4. Remove the pressure relief valve 3
bar as in step 18.6.5 ;
5. Unscrew the pump nut "T2" and
remove the two clips "T3" on the
pump volute (see Fig. 18.70);
T3
Fig. 18.69
3. Pull the expansion vessel toward
you and remove the nut "U2" with a
No.17 spanner (see Fig. 18.73);
3. Remove the "Pal" nut 1/2 "V2" with a
No.34 spanner (see Fig. 18.76);
Fig. 18.75
T3
T2
Fig. 18.70
U2
Fig. 18.73
V2
Fig. 18.76
6. Pull the pump toward you and
remove the clip securing the
"T4"
pressure gauge
(see Fig. 18.71 );
7. Reassemble in reverse order.
4. To ensure the easiest access to the
hydraulic parts, hang the expansion
vessel on the chassis without
removing the nut (see Fig. 18.74);
5. Reassemble in reverse order.
4. Pull up the expansion vessel and
unscrew the second "Pal" nut (see
Fig. 18.77);
5. Reassemble in reverse order.
T4
Fig. 18.71
Fig. 18.74
Fig. 18.77
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