p. 18/37
4.2.
Procedure for installation of the hot water electric boiler of series
“ELTHERM” of the heating system
After the hot water electric boiler of series “ELTHERM” has been positioned, it
should be connected to the heating system, considering the appropriate
requirements. In order to ensure safe and reliable operation of the boiler, it should
be horizontally leveled, which will allow easy air relieving of the circulating water.
4.2.1.
Connecting to the heating system
The electric boiler of series “ELTHERM” should be connected to the heating
system by appropriate fittings and other control elements –
it should be performed
following the prepared project
.
After the boiler has been positioned and attached to the heating system, a hydraulic
test should be made – fill the heating system with circulating water, following the
requirements. Check and repair the connections for leakages prior any following
procedures. De-air the boiler and any other modules of the heating system in order
to allow nominal circulation of the fluid and safe operation of the heating unit;
ATTENTION :
if the electric boiler is not air-free, then there is high risk of
damaging the electric heaters due to lack of active cooling agent in the heat
exchanger of the boiler
;
4.2.2.
Recommended principal hydraulic scheme for the hot water electric
boiler of series “ELTHERM”
Recommended principal hydraulic scheme
for connecting the hot water electric
boiler of series “ELTHERM” to a heating system, equipped with expansion vessel
is shown on the following figure.
