
49
-
Select COMBUSTION OFFSET
-
Select RESTORE
-
Press OK to confirm.
COMBUSTION OFFSET
RESTORE
RESET
SERVICE
6.19 MAINTENANCE
b
In case where, after the replacement of the electronic
board or the maintenance of the detection electrode or
the burner, the combustion analysis would restore out of
tolerance values, it may be necessary to take action on
the parameter COMBUSTION OFFSET as described in
the section
“6.18 Combustion check parameters”.
Note:
in case of replacement of the electrode, slight
variations of the combustion parameters can not be
excluded. These data wil return to nominal values after
a few hours of operation.
b
Do not clean the appliance or its parts with inflammable
substances (e.g. petrol, alcohol, etc.).
b
Do not clean panels, painted parts and plastic parts with
paint thinner.
b
Panel cleaning must be carried out only with soapy
water.
Maintenance of the combustion control system
Maintenance electrode
The detection electrode/ionization sensor has an important
function in the boiler ignition phase and in the maintenance of
a proper combustion; in this context, in case of replacement,
it is necessary to
always ensure
that it is correctly positioned
and to strictly observe the reference shown in the figure.
flame detection electrode/
ionization sensor
flame
ignition electrode
a
Do not clean the electrode with sandpaper or any other
abrasive material.
b
The ‘Iono’ electrode will degrade over a over a period
of time and continued usage; it is therefore strongly
recommended that it be replaced after 5-years of use; in
order to ensure continued performance and efficiency,
and avoid appliance malfunction.
6.20 FINAL CHECKS
• ENSURE THE APPLIANCE FLUE SYSTEM IS FITTED
CORRECTLY AND IS PROPERLY SECURED.
• ENSURE ALL PIPE WORK IS RE-CHECKED FOR
TIGHTNESS.
• COMPLETE BENCHMARK CHECKLIST.
FOR UK ONLY
Complete details of the boiler, controls, installation and
commissioning in the Benchmark checklist at the back of this
book. It is important that the Benchmark checklist is correctly
completed and handed to the user. Failure to install and
commission the appliance to the manufacturers instructions
will invalidate the warranty.
6.21 INSTRUCTING THE USER
Hand over all documentation supplied with this appliance –
including these instructions – and explain the importance of
keeping them in a safe place.
Explain to the user how to isolate the appliance from the gas,
water and electricity supplies and the locations of all drain
points. Show the user how to operate the appliance and any
associated controls correctly.
Show the user the location of the filling valve and how to top-
up the system pressure correctly and show the location of all
manual air release points.
Explain to the user how to turn off the appliance for both long
and short periods and advise on the necessary precautions to
prevent frost damage.
Explain to the user that for continued safe and efficient operation,
the appliance must be serviced annually by a competent person.
IMPORTANT
To validate the appliance warranty, it’s necessary to register
the appliance details with us. The warranty can be registered
in several ways:
• online at: vokera.co.uk
• for UK residents by calling: 0800 479 0751
• for ROI residents by calling: 056 7755055.