Tecnosystemi Blitz 510 DA - Electro-Mechanical Faults - Manifold & O-Rings; Replacing Manifold and O-Rings

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fig.28b fig.28c
Remove the curve T2 (see fig.28b) Unscrew the hexagonal manifold R1 (see fig. 28c)
fig.28d fig.28e
Take the manifold out of the boiler (see fig. 28d) Replace the 2 OR 2018 (see fig. 28e)
fig.28f
NOTE
Reassemble all parts, proceeding in the reverse order (see fig. 28f) and put the sealant on the 1/8” coupling
thread. You are recommended to slightly lubricate the 2 ORs using a non-toxic fat.