Checking The Tightness Of The Flue Gas Evacuation And Air Inlet Connections; Checking Combustion - REMEHA Calenta 25s Installation And Service Manual

7. Checking and maintenance
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T001631-B
76
7.3.4.
Check the tightness of the flue gases evacuation and air inlet
connections.
T001525-A
7.3.5.
The check on combustion is done by measuring the percentage of
O /CO in the flue gas discharge flue. To do this, proceed as follows:
2 2
1. Unscrew the plug of the flue gas measurement point.
2. Connect the flue gas analyser.
CAUTION
Ensure that the opening around the sensor is completely
sealed when taking measurements.
T001526-A
3. Set the boiler to full load. Press the two B keys simultaneously.
The B symbol is visible on the menu bar and h3 appears in the
display. The boiler is now operating at full load.
4. Measure the percentage of CO
checking values given. ¼ See chapter: "Setting the air/gas
ratio (Full load)", page 57.
5. Set the boiler to part load. Press the [-] key several times until
l3 is displayed on the screen. The boiler is now operating on
part load.
6. Measure the percentage of CO
checking values given. ¼ See chapter: "Setting the air/gas
ratio (Part load)", page 59.
Checking the tightness of the flue gas
evacuation and air inlet connections

Checking combustion

2
2
Calenta 25s - 28c - 35s - 40c
and compare this value with the
and compare this value with the
040412 - 7600585-01