Installation & Servicing Instructions ATAG E-Series
30
13.3 Checking the CO
2
The CO
2
percentage is factory-set. This has to be checked at commissioning,
maintance and faults.
This can be checked by means of the following procedure:
- Remove the black cover of the gas valve by unscrewing the sealed screw.
- Put the boiler into operation and take care that it can deliver its heat;
Tip: If there is no demand for heat on CH, turn the hot water tap completely open and
measure the CO
2
.
- Press the MODE-key for 5 seconds.
- The diplay will show COdE followed by an arbitrary number;
- Select by means of the + or the - key the code C123;
- Press the Store-key to confirm the code (code blinks 1 x);
- Press the MODE-key until SERV is shown;
- Press the STEP-key once until 1 is shown;
alternately 1 and OFF will be shown.
- Calibrate the CO
2
meter ;
- Place the lance of the CO
2
meter into the check point (see fig. 15);
- Press the + key until the maximum value (in kW) is achieved;
The boiler will burn on full load (value on display in kW)
- Check Table 7 for the correct CO
2
percentage (page 33)
- Let the CO
2
meter do its measuring procedure.
- Adjust, if necessary, the adjustment screw to correct the CO
2
value (see fig. 16).
Ending the CO
2
measuring procedure:
- Press the - key until OFF is shown (keep key pressed).
With this the procedure has ended..
- Replace the black cover on the gas valve and fix it with the screw.
checkpoint CO
2
figure 15
adjustment screw CO
2
figure 16
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