Atag iR 15 - Page 41

Installation & Servicing instructions ATAG iR-Range
41
Measuring point CO
2
Figure 15.1.a
Step 2: CO
2
check on low load
Set the low load
The low load of the boiler can be set by you as follows:
- Pressonthe-buttonuntiltheminimumvalue(0%)hasbeenreached(lowload)
- Use the measuring tool to carry out a CO
2
control measurement. The detected values must lie in the
measuring range shown below.
The CO
2
value at low load must be lower than the CO
2
value at full load. The measuring procedure must
be carried out, until a constant measuring result is achieved. Please contact ATAG, if the values should lie
outside of the applicable tolerances.
End of measuring:
- Press the ESC button (
button).
 Thedeviceswitcheso󰀨.
The display shows for 2 seconds code 180 or 181.
This completes the procedure.
The maximum duration of the commissioning function, without interruption, is 8 minutes.
-
+ +
reset
eco
-
°C
-
-
+ +
reset
eco
%
Measuring point CO
2
Figure 15.1.a
a
CO
2
check on low load (Step 2)
Low load Natural gas (G20) Propane (G31)
CO
2
Example readings
Full load recorded Accepted low range Full load recorded Accepted low range
9.6% 9.3%-7.5% 11.0% 10.9%-8.9%
9.5% 9.2%-7.5% 10.9% 10.8%-8.9%
9.4% 9.1%-7.5% 10.8% 10.7%-8.9%
9.3% 9.0%-7.5% 10.7% 10.6%-8.9%
9.2% 8.9%-7.5% 10.6% 10.5%-8.9%
9.1% 8.8%-7.5% 10.5% 10.4%-8.9%
9.0% 8.7%-7.5% 10.4% 10.3%-8.9%
8.9% 8.6%-7.5% 10.3% 10.2%-8.9%
8.8% 8.5%-7.5% 10.2% 10.1%-8.9%
8.7% 8.4%-7.5% 10.1% 10.0%-8.9%
8.6% 8.3%-7.5% 10.0% 9.9%-8.9%
9.9% 9.8%-8.9%
Values are valid with closed cover/air box.