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Optimax 25 OV
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 and the gas valve.
After these checks, make sure there are no gas leaks.
Combustion analysis
It is possible to analyse the combustion through
the air and fume sampling points shown in fi g.
18.
To make the measurement, it is necessary to:
1) Open the air and fume sampling points
2) Insert the probes;
3) Press RESET
3 seconds to turn on TEST mode;
4) Wait 10 minutes for the boiler to stabilize
5) Take the measurement.
CO2 = 8,7÷9 % for NAT GAS
CO2 = 9,5÷10 % for L.P.G.
Analyses made with an unstabilized boiler can cause measurement errors.
A
fi g. 17
key for 3 times in the
B
A
Air
Fumes
fi g. 18
C
Air
Fumes
27
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