Ariston 47-116-17 Removing the D.H.W. secondary exchanger, Removing the safety valve

1.5ACCESS TO THE WATER CIRCUIT

Important! Before any component is removed, the boiler must be drained of all water.

Removing the D.H.W. (secondary) exchanger

1.Remove the screw “U” (FIG. 1.32);

2.Remove the screw “V” (FIG. 1.33);

3.Push the exchanger towards the rear of the boiler, lift upwards and remove from the front of the boiler (FIG. 1.34);

4.Before replacing the exchanger ensure that the O-rings are in good condition and replace if necessary.

U

FIG. 1.32

V

FIG. 1.33

FIG. 1.34

Removing the safety valve

1.Loosen union “W” (Fig. 1.35);

2.Unscrew and remove the valve (Fig. 1.36).

W

FIG. 1.35

FIG. 1.36

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