Maintenance; Notes On Safety For The Maintenance; Maintenance Programme; Maintenance Frequency - Riello RL 190/M Installation, Use And Maintenance Instructions

6

Maintenance

6.1

Notes on safety for the maintenance

The periodic maintenance is essential for the good operation, safe-
ty, 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 con-
tents of this manual and in compliance with the
DANGER
standards and regulations of current laws.
Before carrying out any maintenance, cleaning or checking opera-
tions:
6.2

Maintenance programme

6.2.1

Maintenance frequency

The gas combustion system should be checked at
least once a year by a representative of the manu-
facturer or another specialised technician.
6.2.2

Checking and cleaning

The operator must use the required equipment dur-
ing maintenance.
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases. Significant differences with respect to the previous
measurements indicate the points where more care should be ex-
ercised 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. If in doubt, disassemble the elbow fitting
7)(Fig. 49).
Servomotor
Disengage the cam from servomotor and turn it backward and for-
ward by hand to make sure it is free moving.
Now engage cam again.
Maintenance
Disconnect the electrical supply from the burner by
means of the main system switch.
DANGER
Close the fuel interception tap.
DANGER
Wait for the components in contact with heat sourc-
es to cool down completely.
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.
Burner
Check for excess wear or loose screws in the mechanisms con-
trolling the air damper and the gas butterfly valve.
Also make sure that the screws securing the electrical leads in the
burner connections are fully tightened.
Clean the outside of the burner, taking special care with the linkag-
es joints and cam.
Flame inspection window
Clean the flame inspection window (Fig. 45).
D10500
31 GB
1
Fig. 45
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