Page 1
Installation, use and maintenance instructions Forced draught gas burner One stage operation CODE MODEL TYPE 20037201 GS5 LME 37201X 20037556 (1) - 04/2011...
TECHNICAL DATA TYPE 552T1 15,500 50,000 kcal/h Thermal power 18 – 58 kW – – 7.000 10.340 kcal/Nm 8 – 12 kWh/Nm Natural gas (Family 2) Pressure min. 10 mbar – max. 40 mbar Electrical supply Single phase, 230 V ± 10% 50Hz / 60Hz Motor 0.75 A run current - 2800 rpm.
DIMENSIONS Flange Burner ø D5066 Long combustion head upon request BURNER EQUIPMENT Quantity Description Screws with nuts Insulating gasket Screws for fixing the fairing Grommet Hinge 7 pin plug ACCESSORIES SOFTWARE DIAGNOSTIC KIT A special kit is available that, by an optical link to a PC, shows the burner life together with oper- ating hours, type and number of lockout, serial number, etc...
BOILER FIXING Separate the combustion head from the burner body HINGE ASSEMBLY by removing the nut (1) and pulling back the group (A). Fix the group (B) to the boiler plate (2), inserting the supplied insulating gasket (3). S7392 D5067 FIRING RATE D5135 15,000...
CORRELATION BETWEEN GAS PRESSURE AND BURNER OUTPUT To obtain the maximum output, it is necessary to have 4.6 mbar measured on the pipe coupling, with the combustion chamber at 0 mbar and gas G20 - Pci = 10 kWh/Nm (8,570 kcal/Nm D5136 15,000 20,000...
ELECTRICAL WIRING All the installation, maintenance and disassembly operations must be carried out with the electricity supply disconnected. WARNING The burner requires periodic maintenance carried out by a qualified and authorised technician in conformity with legislation and local standards. DANGER ATTENTION: ...
COMBUSTION HEAD ADJUSTMENT Loosen 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: The burner is installed in a 40 kW boiler. Considering efficiency of 90% the burner must supply around 44 kW.
COMBUSTION ADJUSTMENT In conformity with Efficiency Directive 92/42/EEC, the application of the burner on the boiler, adjustment and testing must be carried out by observing the instruction manual of the boiler, including verification of the CO and CO concentration in the flue gases, their temperatures and the average temperature of the water in the boiler.
AIR PRESSURE SWITCH The air pressure switch is set after all other adjustments have been made. Begin with the switch at the lowest setting. With the burner function at the required power, turn the knob slowly in a clockwise di- rection until burner lockout.
0.1 BURNER START-UP CYCLE Only when air damper is open the control box start with the cycle. WARNING 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...
Page 12
0.3 RESETTING THE CONTROL BOX AND USING DIAGNOSTICS The control box features a diagnostics function through which any causes of malfunctioning are easily iden- tified (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.
Page 15
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 .
STANDARD ELECTRICAL WIRING INDEX Indication of references LME Operational layout Elecrical connections set by installer Indication of references /1.A1 Sheet no Co-ordinates 20037556...
Page 19
KEY TO ELECTRICAL LAYOUT – Control box – Suppresor B4 – Working signal – Capacitor CN1– Connector h1 – Hour counter IN – Switch ION – Ionisation probe – Valve assembly PA – Air pressure switch PGMin– Minimum gas pressure switch Q2 –...
Need help?
Do you have a question about the Riello 40 GS5 LME and is the answer not in the manual?
Questions and answers