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Installation, use and maintenance instructions Forced draught gas burner One stage operation CODE MODEL TYPE 20033121 FS10 564T31 20039281 (2) - 10/2011...
TEST BOILER The working field has been defined according to EN 676 standard. COMMERCIAL BOILERS The burner-boiler matching is assured if the boiler conforms to EN 303 and the combustion chamber dimensions are similar to those shown in the diagram EN 676. For applications where the boiler does not conform to EN 303, or where the combustion chamber is much smaller than the dimensions given in EN 676, please consult the manufacturers.
ELECTRICAL WIRING All the installation, maintenance and disassembly operations must be carried out with the electricity sup- ply disconnected. WARNING The burner requires periodic maintenance carried out by a qualified and authorised technician in con- formity with legislation and local standards. DANGER ATTENTION: Do not swap neutral and phase over, follow the diagram shown carefully and carry out a good earth connection.
4.2 COMBUSTION HEAD SETTING Loose the screw (A), move the elbow (B) so that the rear plate of the coupling (C) coincides with the set point. Tighten the screw (A). Example: kcal/h The burner is installed on a 81 kW boiler D5258 with an efficiency of 90%, the burner 100,000...
IONIZATION CURRENT The minimum current necessary for the control box operation is 3 µA. The burner normally supplies a higher current value, so that no check is needed. However, if you want to measure the ionization current, you must open the connector fitted to the red wire and insert a microammeter. Connector Terminal board of control-box...
4.6 BURNER START-UP CYCLE S8271 AL - Error message (alarm) Start command (switching on by «R») BV - Fuel valve B-B´ Interval for establishment of flame FS - Flame signal Operating position of burner reached GP - Gas pressure switch C-D Burner operation (generation of heat) LP - Air pressure switch Controlled shutdown by «R»...
4.8 RESETTING THE CONTROL BOX AND USING DIAGNOSTICS The control box features a diagnostics function through which any causes of malfunctioning are easily identi- fied (indicator: RED LED). To use this function, you must wait at least 10 seconds once it has entered the safety condition (lock-out), and then press the reset button.
The sequence of pulses issued by the control box identifies the possible types of malfunction, which are listed in the table below. SIGNAL PROBABLE CAUSE The flame does not stabilise at the end of the safety time: – faulty ionisation probe; –...
FAULTS / SOLUTIONS Here below you can find some causes and the possible solutions for some problems that could cause a fail- ure to start or a bad working of the burner. A fault usually makes the lock-out lamp light which is situated inside the reset button of the control box (9, fig.
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Signal Problem Possible cause Recommended remedy 10 blinks The burner does not 32 - Incorrect electrical wiring ... . . Check switch on, and the lockout appears The burner goes into 33 - Defective control box .
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STANDARD ELECTRICAL WIRING INDEX Indication of references Functional layout Indication of references /1.A1 Sheet no Co-ordinates 20039281...