Combustion Analysis - Ferroli OPTIMAX 25 S Instructions For Use, Installation And Maintenance

Opening the casing
To open the boiler casing, you need to follow the sequence
given below and the instructions of fi g. 17.
1 Using a screwdriver, fully unscrew the 2 screws "A "
2 Open by lowering the panel "B "
3 Lift and take off the panel "C "
Cleaning the boiler and burner
The body and burner must not be cleaned with chemical products or wire brushes. Special care must
be taken over all the sealing systems pertaining to the sealed chamber (gaskets, cable clamps, etc.). In
addition, it is necessary to pay attention after performing all these operations to check and carry out all
the phases of ignition and thermostat operation, the gas valve and circulation pump.
After these checks, make sure there are no gas leaks.

Combustion analysis

It is possible to analyse the combustion through
the air and fl ue sampling points shown in fi g.
18.
To make the measurement, it is necessary to:
1) Open the air and fl ue sampling points
2) Insert the probe;
3) Press RESET
3 seconds to turn on TEST mode;
4) Wait 10 minutes for the boiler to stabilize
5) Take the measurement.
6) CO for Natural gas 8,7 to 9,0%
2
LPG 9,5 to 10%.
Analyses made with an unstabilized boiler can cause measurement errors.
26
A
fi g. 17
key for 3 times in the
Optimax 25 S
B
A
Air
Fumes
C
Air Fumes
fi g. 18