EN
2.14.2 EMPTYING operations
Domestic hot water circuit (storage tank):
– close the domestic hot water circuit isolation valve
(prearranged in installation)
– connect a rubber hose to the tank drain valve (5) and open it
– when it has fully emptied, shut-off the tank drain valve (5).
Boiler:
– loosen the automatic bleed valve (4)
– close the heating circuit isolation valves (prearranged in
installation)
4
– check that the filling valve (3) is shut-off
– connect a rubber hose to the boiler drain valve (6) and open it
– when it has fully emptied, shut-off the boiler drain valve (6)
– close the automatic bleed valve (4).
5
Fig. 30
Fig. 31
6
3
Fig. 32
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