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Removing the safety valve
1. Loosen union “W” (Fig. 1.35);
2. Unscrew and remove the valve (Fig. 1.36).
1.5 ACCESS TO THE WATER CIRCUIT
FIG. 1.36
Removing the D.H.W. (secondary)
exchanger
1. Remove the screw “U” (F
IG. 1.32);
2. Remove the screw “V” (F
IG. 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.
Important! Before any component is removed, the boiler
must be drained of all water.
F
IG. 1.34
F
IG. 1.35
U
FIG. 1.32
FIG. 1.33
V
W