Riello GAS 4 Installation, Use And Maintenance Instructions
Riello GAS 4 Installation, Use And Maintenance Instructions

Riello GAS 4 Installation, Use And Maintenance Instructions

Forced draught gas burner, one stage operation

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Installation, use and maintenance instructions
Forced draught gas burner
GB
One stage operation
CODE
MODEL
TYPE
3751682
GAS 4
516 T80
2915860 (4) - 07/2015

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Summary of Contents for Riello GAS 4

  • Page 1 Installation, use and maintenance instructions Forced draught gas burner One stage operation CODE MODEL TYPE 3751682 GAS 4 516 T80 2915860 (4) - 07/2015...
  • Page 2 The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001. Legnago, 21.05.2015 Executive General Manager Research & Development Director RIELLO S.p.A. - Burner Department RIELLO S.p.A. - Burner Department Mr. U. Ferretti Mr. F. Comencini...
  • Page 3: Technical Data

    TECHNICAL DATA Thermal output 180 - 470 kW 154.800 - 404.200 kcal/h Fuel Natural gas Pci 8 - 10 kWh/m = 7000 - 8600 kcal/m For maximum output 9.8 mbar are needed measured at the coupling with nil pressure in the combustion chamber and gas with calorific val- Minimum gas pressure ue of 8600 kcal/m Maximum gas pressure...
  • Page 4: Standard Equipment

    STANDARD EQUIPMENT Quantity Description Flange Gasket Screws Flange gasket ACCESSORIES • RADIO DISTURBANCE PROTECTION KIT code 3010386 If the burner is installed in places particularly subject to radio disturbance (emission of signals exceeding 10 V/m) owing to the presence of an INVERTER, or in applications where the length of the thermostat connections exceeds 20 metres, a protection kit is available as an interface between the control box and the burner.
  • Page 5: Working Range

    WORKING RANGE COMBUSTION CHAMBER PRESSURE - MAXIMUM OUTPUT (in compliance with DIN 4788) kcal/h D1786 MINIMUM GAS PRESSURE - OUTPUT Pressure: detected at the pressure test-point 7) (fig. 1) with nil mbar into the combustion chamber. Should the combustion chamber be pressurized, the pressure necessary will be that of the graph plus the pressurization value.
  • Page 6 BURNER ELECTRICAL WIRING (carried out in the factory) 20107483 CMV Fan motor contactor A TTENTION Protection against radio interference Relay In the case of phase-phase feed, a Burner terminal strip bridge must be fitted on the control box Fan motor Air pressure switch terminal board between terminal 6 and RMG Control box...
  • Page 7 ELECTRICAL CONNECTIONS TO THE WIRING TERMINAL BLOCK (to be carried out by the installer) Remote lock-out signal Remote lock-out signal of leak detection control device Burner manual stop switch Burner terminal strip Min. gas pressure switch Limit control device system Safety control device system Leak detection control device Gas adjustment valve...
  • Page 8: Burner Start-Up Cycle

    BURNER START-UP CYCLE Air-purge: loosen the screw placed on the minimal gas pressure switch mounted on the gas train Screw Plug for pressure measure Pressure switch S7506 AIR PRESSURE SWITCH 7) (fig.1) The air pressure switch setting shall be carried out after having S7507 set all other adjustment of the burner and the air pressure switch shall be at its lowest set-point.
  • Page 9: Combustion Head Adjustment

    COMBUSTION HEAD ADJUSTMENT Two separate adjustments have to be made: air and gas. These adjustments can be carried out when the burner is still open, during the installation (see page 2 - Fixing to the boiler). Air setting Loosen the two screws 1) and move the internal part of the combustion head 2) so that its rear edge 3) is coincident with the desired set-point on the plate 4).
  • Page 10: Combustion Checks

    COMBUSTION CHECKS It is advisable to not exceed 10% of CO (gas with calorific value of 8600 kcal/m ), in order to avoid the risk that small changes of the adjustments due, for instance, at draught variation, may cause com- bustion with insufficient air and consequently formation of CO.
  • Page 11 BURNER STARTING DIFFICULTIES AND THEIR CAUSES Signal Problem Possible cause Recommended remedy 2 blinks Once the pre-purg- 1 - The operation solenoid lets little gas . Increase ing phase and safety through time have passed, 2 - One of the two solenoid valves does Replace the burner goes into not open.
  • Page 12 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 ... . . Replace lockout 34 - Presence of electromagnetic .
  • Page 13: Normal Operation / Flame Detection Time

    NORMAL OPERATION / FLAME DETECTION TIME The control box has a further function to guarantee the correct burner operation (signal: GREEN LED perma- nently on). To use this function, wait at least ten seconds from the burner ignition and then press the control box button for a minimum of 3 seconds.
  • Page 14: Operating Fault Diagnostics

    OPERATING FAULT DIAGNOSTICS The control box has a self-diagnostic system, which easily allows identifying the operating faults (RED LED signal). ITo use this function, wait at least ten seconds from the safety lock out, and then press the reset button for a minimum of 3 seconds.
  • Page 16 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.riello.com Subject to modifications...

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