Maintenance; Notes On Safety For The Maintenance; Maintenance Programme; Maintenance Frequency - Riello PRESS 30 N Installation, Use And Maintenance Instructions

7

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.
The maintenance interventions and the calibration
of the burner must only be carried out by qualified,
authorised personnel, in accordance with the
DANGER contents of this manual and in compliance with the
standards and regulations of current laws.
Before carrying out any maintenance, cleaning or checking
operations:
7.2

Maintenance programme

7.2.1

Maintenance frequency

The gas combustion system should be checked at
least once a year by a representative of the
manufacturer or another specialised technician.
7.2.2

Checking and cleaning

The operator must use the required equipment
during maintenance.
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases.
Significant differences
measurements indicate the points where most care should be
exercised during maintenance.
Combustion head
Open the burner and make sure that all components of the
combustion head are in good condition, not deformed by the
high temperatures, free of impurities from the surroundings
and correctly positioned.
Burner
Check that there is no abnormal wear or loosen screws.
Clean the outside of the burner.
Fan
Check to make sure that no dust has accumulated inside the fan
or on its blades, 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
intact, especially the flue gas temperature and combustion
chamber pressure.
20132157
with respect to the
Maintenance
Disconnect the electrical supply from the burner
by means of the main system switch.
DANGER
Turn off the fuel interception tap.
DANGER
Wait for the components in contact with heat
sources to cool down completely.
Filters
Check the filtering baskets on line 1) and at nozzle 2) present in
the system.
Clean or replace if necessary.
If rust or other impurities are observed inside the pump, use a
separate pump to lift any water and other impurities that may
have deposited on the bottom of the tank.
Nozzles
It is advisable to replace nozzles once a year during periodical
maintenance.
Do not clean the nozzle openings;.
Hoses
Check that these are in good conditions.
Fuel tank
Approximately every 5 years, suck any water on the bottom of the
tank using a separate pump.
Combustion
In case the combustion values found at the beginning of the
previous
intervention do not respect the standards in force or, in any case,
do not correspond to a proper combustion, contact the Technical
Assistant in order to carry out the necessary adjustments.
EN 267
Theoretical max CO
0 % O
15.2
18 GB
Air excess
Max. output. Min. output.
 1.2
CO % Calibration
2
2
 = 1.2
2
12.6
CO
 1.3
mg/kWh
 = 1.3
 1000
11.5
Tab. E