
53
60T - 280T
COSMOGAS
15 - COMMISSIONING
Figure 15-9 - Combustion analysis socket
Figure 15-10 - Gas valve
D - Gas inlet pressure plug.
E - CO2 adjustment screw.
F - Factory default adjustment screw (do not touch).
020010.01.016
E
D
F
E
D
F
020010.01.022
15.8 - Checking the CO2 seal
and any adjustments
Table 15-8 shows the correct CO2 values for an appliance
working in normal conditions at an altitude of less than
1000 metres. Values differing from those shown can cause
malfunctions. To check and, if necessary, adjust said value a
combustion analysis must be done. Proceed as follows:
15.8.1 - Checking the CO2 seal and any
adjustments on 60T and 70T model
appliances
ATTENTION!!! If, during this procedure, a CO
value greater than 1000 ppm is detected, stop the
appliance and contact the retailer.
1. - If there isn’t one already, a hole must be made for
combustion analysis positioned about 200 mm from the
flue exhaust fitting (see figure 15-9 near the plug, part “F”).
2.- Switch on the appliance and open the bridge between
terminals “10” and “11”;
3.- Make sure that the required temperature is higher than the
boiler/water heater temperature;
4.- Access the installer menu (see section 16.15) and set
parameter
2010
to
HIGH.
The appliance will now work
for 20 minutes at maximum output heat;
5.- Wait two or three minutes for the CO2 to stabilise;
6.- Put the CO2 value reading probe into socket “F” shown in
figure 15-9;
7.- Compare the CO2 value detected with the one shown in
table 15-8. Be sure to read the value for the type of gas
being used. If the CO2 value does not match the one in table
15-8, it must be adjusted via screw “E” in figure 15-10. Use
a 2,5 mm hex spanner (turn the screw clockwise to reduce
the CO2 value and anticlockwise to increase it). Make small
turns, always waiting for the CO2 value to stabilise before
continuing, until you reach the desired value.
8.- Once the correct CO2 value as per table 15-8 has been
reached, seal the screw with red paint or a similar system
to discourage tampering.
9.- Set parameter
2010
to
LOu
The appliance will now work
for 20 minutes at minimum output heat.
10.- Wait two or three minutes for the CO2 to stabilise;
11.- Compare the CO2 value read with the one in table 15-8.
Be sure to read the value for the type of gas being used. The
CO2 value must be within the values shown; if not, stop the
appliance and call the manufacturer.
12- Set parameter
2010
to
OFF
to bring the appliance back
to normal operation.
13.- Close the combustion analysis hole in figure 15-9 with
appropriate plug “F” as per the instructions from the drain
pipe manufacturer.
ATTENTION!!! Once plug “F” is positioned with
the appliance at maximum output heat, make sure there
are no flue gas leaks.
F - Combustion analysis socket
F