31
Instruction for the installer
Check the efficiency of the sanitary heat exchanger
Control the efficiency of the electrical and
electronic components
Recommended servicing operations
Examine all water seal components for soundness
Check the hydraulic system
Check
annually
Check every
2 years
Check the water safety devices
To ensure the continued safe and efficient
operation of the boiler it is highly
recommended that it is checked at regular
intervals and serviced when necessary, and
that only original spare parts are used.
The appliance must have regular
maintenance as the regulations in force.
If the appliance is not checked and serviced
regularly it could cause material and personal
damages.
For this reason, a servicing contract should be made with an
authorized After Sales Service Assistance Centre.
The appliance must have regular maintenance and cleaning
in order to ensure reliable and efficient operation, by
measuring, monitoring and observance.
The maintenance is necessary to eliminate any deviation of
the optimal state of the appliance, by the cleaning and the
replacement of the used part.
The frequency of servicing will be determined by the service
engineer and will depend on the appliance’s state of condition.
For a better operation of your appliance follow the suggested
servicing as shown on the table.
INSTRUCTIONS FOR INSPECTION AND
SERVICING
To ensure a long life to all your appliance
components and in order not to alter the
conditions of the approved product, only
original UNICAL spare parts must be used
Before servicing always carry out the following steps:
-
disconnect the mains electricity supply;
-
separate the appliance from the electrical supply by means
of a separating device with an opening contact of at least 3
mm (for example safety devices or power switches) and
ensure yourself that it cannot be accidentally reinserted;
-
close the on-off valve fitted upstream of the appliance;
-
if necessary, and in function of the type of work to be carried
out, close any on-off valves fitted on the delivery flow and
return pipes, as well as the cold water inlet valve;
-
remove the appliance’s front panel.
After having carried out all the necessary maintenance work
always follow these steps:
- open the delivery flow and return valves as well as the cold
inlet valve (if previously closed);
- reconnect the appliance to the electrical supply and switch
on the mains electrical supply;
- test for gas soundness, on the water side.
4
INSPECTION AND
SERVICING SCHEDULE
