20121213
56
GB
Maintenance
7.1
Notes on safety for the maintenance
The periodic maintenance is essential for the good operation,
safety, yield and duration of the burner.
It allows you to reduce consumption and polluting emissions and
to keep the product in a reliable state over time.
Before carrying out any maintenance, cleaning or checking oper-
ations:
7.2
Maintenance programme
7.2.1
Maintenance frequency
7.2.2
Checking and cleaning
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases.
Significant differences with respect to the previous measure-
ments indicate the points where most care should be exercised
during maintenance.
Combustion head
Open the burner and make sure that all the components of the
combustion head are:
- undamaged;
- not deformed due to high temperature;
- free of ambient dirt or dust;
-
free of rusted materials;
- adequately positioned.
Check the gas outlet holes for the ignition phase (in the distribu-
tor of the combustion head) are free of impurities or rust.
Burner
Clean the outside of the burner.
Fan
Check to make sure that no dust has accumulated inside the fan
or on its impellers, as this condition will cause a reduction in the
air flow rate and provoke polluting combustion.
Boiler
Clean the boiler as indicated in its accompanying instructions in
order to maintain all the original combustion characteristics in-
tact, especially: the flue gas temperature and combustion cham-
ber pressure.
Electrical current to UV cell
Clean the glass cover from any dust that may have accumulated.
To remove the photocell, pull out outwards; it is only pressed in.
Min value for a good work: 70 µA.
If the value is lower, it could be due to:
–
exhausted photocell
–
low voltage (lower than 187 V)
–
bad regulation of the burner
In order to measure the current, use a microammeter of 100 µA
d.c., connected in series to the photocell, as in the scheme, with
a capacitor of 100 µF - 1V d.c. at the same level of the instrument.
7
Maintenance
DANGER
The maintenance interventions and the calibration
of the burner must only be carried out by qualified,
authorised personnel, in accordance with the con-
tents of this manual and in compliance with the
standards and regulations of current laws.
DANGER
DANGER
Turn off the burner's electrical supply using the
main system switch.
Make sure that both electrical supplies have been
disconnected.
DANGER
Turn off the fuel interception tap.
Wait for the components in contact with heat
sources to cool down completely.
The gas combustion system should be checked at
least once a year by a representative of the man-
ufacturer or another specialised technician.
The operator must use the required equipment
during maintenance.
Fig. 54
D1143
Summary of Contents for RLS 120/EVi MX FS1
Page 2: ...Translation of the original instructions ...
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