Immergas EOLO STAR 24 3 E - Yearly Maintenance and Safety Checks

22 - IE
INSTALLATORUSERTECHNICIAN
3.15 CASING REMOVAL
(Fig 3-4).
To facilitate boiler maintenance the casing can
be completely removed as follows:
- Remove frame (1) grasping the edges and pul-
ling towards oneself as indicated by the arrow.
- Loosen the 2 front screws (2) and the 2 screw
fasteners (3) below on the casing (4).
- Pull the casing (4) towards yourself and up
at the same time to detach it from the upper
hooks.
3.16 YEARLY APPLIANCE CHECK AND
MAINTENANCE.
e following checks and maintenance should
be performed at least once a year.
- Clean the ue side of the heat exchanger.
- Clean the main burner.
- Visually check the fume hood for deterioration
or corrosion.
- Check correct lighting and operation.
- Ensure correct calibration of the burner in
domestic water and heating phases.
- Check correct operation of control and
adjustment devices and in particular:
- intervention of main electrical switch posi-
tioned outside of the boiler;
- system control thermostat intervention;
- domestic hot water control thermostat inter-
vention.
- Check that the internal system is properly
sealed according to specications.
- Check the intervention of the device against no
gas ionization ame control. Intervention time
must be less than 10 seconds.
- Visually check for water leaks or oxidation
from/on connections.
- Visually check that the water safety drain valve
is not blocked.
- Check that, aer discharging system pressure
and bringing it to zero (read on boiler mano-
meter), the expansion vessel charge is at 1.0 bar.
- Check that the system static pressure (with
system cold and aer relling the system by
means of the lling valve) is between 1 and 1.2
bar.
- Check visually that the safety and control
devices have not been tampered with and/or
shorted, in particular:
- temperature safety thermostat;
- water pressure switch;
- air pressure switch.
- Check the condition and integrity of the elec-
trical system and in particular:
- electrical power cables must be inside the
whipping;
- there must be no traces of blackening or
burning.