Radiant RBS 24 Installation And Maintenance Manual - page 19
Installation Manual
MAXIMUM GAS PRESSURE SETTING
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Unscrew 5 gas pressure point screw (fig. 1,pag .15) on the gas valve and insert a manometer;
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Turn heating and domestic hot water setting knobs to the maximum and remove the 2 knob by extracting them with a pliers:
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Use a Ø2.5
÷ 3 mm cross-type screwdriver and turn “maxR” 1 potentiometer (fig. 2,pag .15) clockwise to the maximum;
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Switch the boiler ON;
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Keep 4 potentiometer(chimney sweeper function) (fig. 2,pag .15) pressed for 10 seconds;
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The manometer will show the maximum gas pressure value; if that value is different than the one stated on the Data Plate (see Gas
pressure adjustment table pag.17), modify it as follows: turn the 6 gas adjustment screw (fig. 1,pag .15) clockwise to increase gas
pressure and counter clockwise to decrease gas pressure to reach the data Plate pressure value.
MINIMUM GAS PRESSURE SETTING
• Turn “maxR” 1 potentiometer (fig. 2,pag .15) counter clockwise to the minimum;
• Turn 2 potentiometer (minimum gas) (fig. 2,pag .15) clockwise to increase or counter clockwise to decrease the gas pressure;
• Turn 3 potentiometer (starting step) (fig. 2,pag .15) to the middle position of its full setting;
HEATING OUTPUT SETTING
• Turn the “maxR” 1 potentiometer (maximum heating) (fig. 2,pag .15) clockwise and set the pressure value according to the system
requirement. (see Heating Output Pressure Diagram at page17);
• Remove the silicon pipe from the pressure point 5 (fig. 1,pag .15);
• Close tightly the pressure point screw and make sure there are no gas leaks;
• Fit the 2 plastic knobs back to position;
• Put ON/OFF button in OFF and than ON position.
CENTRAL HEATING / DOMESTIC HOT WATER MODE OPERATION
If the boiler has to operate on both central heating and domestic hot water mode, do NOT set the central heating and d.h. water knobs to
the minimum (zero);
• Set the domestic hot water knob to ‘0’ (zero) for a HEATING ONLY mode;
• Set the central heating knob to ‘0’ (zero) for a WATER ONLY mode;
RESET PROCEDURE
In case of a ‘Flame Lock-out’ (indicator 7 or 8 fig. 1, pag. 11), reset the boiler by putting the ON/OFF button in OFF and than ON position.
COMBI – TG05A039.B0305
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