Setting Gas/Air Regulation - Rotex GW-20 H12 Instrucciones De Instalación

7.9

Setting gas/air regulation

The CO setting has been set at the factory and does not require any adjustments, in principle. The
2
setting can be checked by measuring the CO
disturbance of the setting, the replacement of the gas valve or the conversion to a different type of
gas must be checked, and if necessary set in accordance with the following instructions. Always
check the CO percentage when the lid is open.
2
Checking the carbon dioxide setting
1 Switch off the heat pump module with the user interface.
2 Switch off the gas boiler with the
3 Remove the front panel from the gas boiler.
4 Remove the cover from the sample point (X) and enter an appropriate chimney analysis probe.
IMPORTANT
Ensure the start-up procedure of the analysis machine has been
completed before inserting the probe in the sample point.
IMPORTANT
Wait for the gas boiler to run stable. Faulty measurements may occur if
the measuring probe is connected before the boiler is running stable.
5 Switch on the gas boiler with the
6 Select the High setting by twice pressing the
"H" will appear on the service display. The user display will show a Busy symbol. Do NOT carry
out a test when a small letter "h" is shown. If this is the case, press
7 Allow the display values to stabilize. Wait at least 3 minutes and compare the CO
to the values in the following table.
CO value at Natural gas G20
2
maximum power (20 nbar)
Maximum value
Minimum value
8 Note the CO percentage at maximum power. This is important in relation to the following
2
steps.
IMPORTANT
It is NOT possible to adjust the CO
carried out. If the CO
contact your local service department.
9 Select the High setting by once pressing the
the service display. The user display will show a Busy symbol.
10 Allow the display values to stabilize. Wait at least 3 minutes and compare the CO
the values in the following table.
CO value at Natural gas G20
2
minimum power (20 mbar)
Maximum value
Minimum value
(a) CO value at maximum power registered at setting High.
2
11 If the CO percentage at maximum and minimum power is within the reach stated in the
2
above tables, the CO setting of the boiler is correct. If NOT, adjust the CO
2
accordance with the instruction in the following chapter.
12 Switch off the unit by pressing the
Make sure it is gas tight.
13 Return the front panel to its place.
percentage in the combustion gases. In case of any
2
-
button. appears on the service display.
button and create a request for space heating.
and buttons simultaneously. A capital letter
Natural gas G25
(25 mbar)
Only for Belgium
9.6 8.3
8.4 7.3
percentage when the test program is being
2
percentage deviates from the values in the above table,
2
and buttons simultaneously. "L" appears on
Natural gas G25
(25 mbar)
Only for Belgium
(a)
8.4 7.4
button and return the sample point to its position.
and again.
percentage
2
Propane G31
(30/37/50 mbar)
10.8
9.8
percentage to
2
Propane G31
(30/37/50 mbar)
9.4
setting in
2
43