Maintenance; General; Inspection; Checking The Combustion In The Boiler - REMEHA Gas 110 Eco 115 Installation And Service Manual

10 Maintenance

10.1 General

The boiler requires little maintenance if it is correctly set. The boiler
only requires an annual check and cleaning if necessary.

10.2 Inspection

The annual inspection of the boiler can be restricted to the following
operations:
- Measure the combustion and check the operation
- Clean the siphon
- Checking condensates discharge
- Checking the ignition electrode and the ionization sensor
- Set the gap between the ignition electrodes : 3 to 4 mm

10.2.1 Checking the combustion in the boiler

This check can be carried out by measuring the CO
the combusted gas at the measurement point.
Boilers
Maximum output
Natural gas
Gas 110 Eco
approx. 5200
65
Gas 110 Eco
approx. 7000
115
Correct the burner setting to ±0.3% CO
The temperature of the combusted gases can also be measured at the
measurement point in the evacuation pipe. The temperature of the
combusted gas must not exceed the temperature of the return water by
more than 30 °C. If it turns out that boiler combustion has not been
optimised after this check, clean the installation.
26/01/2009 - 300014883-001-F
/O content of
2 2
Fan speed
rpm
Minimum
output
Propane Natural gas
approx. 4600 approx. 1200
approx. 6700 approx. 1300
; ±0.2% O .
2 2
- Check the general condition of the flue
- Checking the hydraulic pressure
(minimum 0.3 bar for Gas 110 Eco 65,
minimum 0.5 bar for Gas 110 Eco 115).
Add water to the installation if necessary (Recommended pressure :
1.5 mbar)
- Check the ionization current : 4 to 9 µA.
Bring the boiler to maximum output up to a water temperature of
around 70°C.
Start-up output
Propane
2500 2500 4.8 ± 0.2
2500 2000 4.8 ± 0.2
Gas 110 Eco 115 / 65
Natural gas G20
O CO
2 2
% %
9.0 ± 0.3 4.8 ± 0.2
9.0 ± 0.3
Propane
O CO
2 2
% %
10.7 ± 0.3
5.7 ± 1 10 ± 0.7
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