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2. MAINTENANCE
SUPPOR
T CENTRE
2.2.14. SYSTEM EMPTYING
HEATING SYSTEM EMPTYING
Heating circuit empting is not recommended, since
water changes produce a rising of limestone inside
the exchanger. When the heating circuit needs to
be protected from freezing, antifreezing products
have to be approved by the Company.
The boiler limestone elimination has to be
performed through products which have to
be approved by the Company, by following the
product safety specifications, airing the room,
wearing protection clothes, avoiding the mix of
different products, protecting the boiler and the
surrounding objects.
Whenever you need to empty the system, proceed
as follows:
› switch the boiler to “WINTER” mode and activate it;
› turn off the main power supply switch;
› wait for the boiler to cool down;
› connect a flexible tube to the system emptying
outlet and connect the other end of the tube to a
suitable discharge;
› turn the discharge tap of the system ‘RS’ (see
fig. 1);
› open the relief valves of the radiators starting
from the one at the top and continuing
downwards;
› after draining out all water, close the relief
valves of the radiators and the emptying tap.
› if only the boiler needs to be drained, close
the flow/return isolating valves on the heating
circuit and open the drain valve located at the
bottom of the boiler on the pump manifold (see
fig. 1);
2.2.15. BOILER DEACTIVATION
When the applicance is no longer required for
use, the necessary operation (disconnect the
applicance from the main electricity / gas / water
supply) must be made by qualified personnel.
RS
MAINTENANCE
fig. 1
