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13 Commissioning the boiler
Make sure before the boiler is put into operation that the boiler and installation have been fully vented. Vent
the gas line and open the gas isolation valve to the boiler. The boiler requires no adjustment of the burner
pressure and quantity, because it is self-regulatory and has been set in the factory and should not be reset.
1. Turn on the boiler electrical supply;
2. When the boiler starts up for the rst time the following will be shown:
- - (power on)
All digits (segment test)
0 (parameter 9: from factory 0)
1 (boilertype: parameter 8)
03 followed by 03 (software version part 1 and software version part 2)
3. The code 105 appears on the display; The 7 minute de-aeration cycle starts;
4. Vent the entire heating installation starting at the lowest point;
5. Check the water pressure and top up if necessary to 1.2 – 1.5 bar;
6. Check the lling loop if it is closed;
Waterpressure
The iC boiler is supplied with a pressure sensor. This sensor control has following settings:
0.5 bar: below this pressure the burner is blocked for operation
0.5 to 0.8 bar: boiler output reduced to max. 80%
0.8 to 3.0 bar: boiler fully functional
3.0 bar: above this pressure the boiler is blocked for operation.
Next to this the pressure sensor is used to set the boiler free before every start. Before the burner is set
free the boiler does a pump check, it checks for an increase in pressure when the pump starts. If there is an
increase of water pressure, the boiler will re up. If there is no increase the burner is blocked.
If the water pressure drops below 0.8 bar code 118 will appear in the display;
The de-aeration program starts (code 105) when the water pressure has been below
0.5 bar. Between 0.5 and 0.8 bar the display shows code 118 and the boiler will run on a
reduced output of max. 80%
The automatic de-aeration program will take approx. 7 minutes and will be followed by
the default display (OK) if the water pressure is above 0.8 bar.
The boiler is stand by now for heating.
%
bar
°C
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