ISU-689:2016/GB
16
In a winter time (due to the risk of freezing water in
the system) the disconnection the boiler from
electrical system is forbidden (if there is still water in
the water system of the boiler).
Empty the boiler by means of a valve mounted inside the boiler
(2.22).
6. MAINTENANCE, INSPECTIONS, CHECKING OF THE
OPERATION
6.1. Inspection and maintenance
The boiler should be regularly serviced and subjected to
maintenance. At least once a year it is recommended to
perform a service and it should be reviewed before
heating season. All service and maintenance works
should be performer by an authorized person. Only
original parts should be used for boiler repairs. At every
service and maintenance works the tightness of the gas
units and gas installation and correctness of the
protective systems should be checked. The warranty
does not cover above mentioned operations.
6.1.1. Preparing the boiler for service
Before each cleaning or replacement of components,
ALWAYS disconnect the power supply as well as water
and gas supply of boiler. The manufacturer is not liable
for any damages caused by failure to follow the above
recommendations.
For easier maintenance, it is recommended to remove the casing as
follows.
Fig. 6.1.1.1
–
Removing the front cover
Dismantling the front cover:
1. Loosen the screws (K1),
2. Pull the cover behind its lower edge to release from the latches,
3. Move the cover up.
Dismantling the side cover:
4. Unscrew the screws K2.
5. Move the cover up.
Fig. 6.1.1.2
–
Deflecting the controller bracket
In order to facilitate access to the boiler
’s interior
, the controller
must be lowered together with the bracket on which it is mounted,
for this purpose:
1. Unscrew the screws (K3),
2. Lower the bracket until locked.
Fig. 6.1.1.3
–
Dismantling of the controller
If it is necessary to remove the controller (2.7) after removing the
front cover and deflecting the console, you must:
Remove all wires connected to the controller.
1. Unscrew the screws (K4)
2. Move the controller up and then pull out of the boiler.
6.1.2. Maintenance of the combustion chamber, burner,
ignition electrode and ionization electrode
The interior of the combustion chamber, burner surface and the
electrodes should be checked by visual inspection:
•
the contaminated burner and the interior of the combustion
chamber may be cleaned with a brush made of plastic,
•
visible on the surface of the burner gaps and deformations
disqualify burner - replace the burner,
•
clean the electrodes with a plastic brush,
•
deformed electrodes should be replaced,
•
check the condition of insulators of all electrodes,
•
clean dirty insulators,
•
insulators with visible damages disqualify the electrodes
–
to be replaced.
Dirty burner and the interior of combustion chamber
mean that the boiler regulation must be done.
