Riello 517T80 Installation, Use And Maintenance Instructions
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Riello 517T80 Installation, Use And Maintenance Instructions

Riello 517T80 Installation, Use And Maintenance Instructions

Forced draught gas burner
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Installation, use and maintenance instructions
Forced draught gas burner
GB
One stage operation
CODE
MODEL
TYPE
3751782
GAS 5
517T80
2915861 (4) - 07/2015

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Summary of Contents for Riello 517T80

  • Page 1 Installation, use and maintenance instructions Forced draught gas burner One stage operation CODE MODEL TYPE 3751782 GAS 5 517T80 2915861 (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 320 - 660 kW 275.200 - 567.600 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 Minimum gas pressure with nil pressure in the combustion chamber and gas with calorific value of 8600 kcal/m Maximum gas pressure 150 mbar...

  • Page 4: Overall Dimensions

    OVERALL DIMENSIONS Boiler front-plate Burner drilling Rp 1 S7497 D1785 S7498 Length available with special blast tube to be separately required. FIXING TO THE BOILER Separate the combustion head from the burner body by loosening the screws 1) and 2) and withdrawing the group A) from the holding bars 3).

  • Page 5: Working Range

    WORKING RANGE COMBUSTION CHAMBER PRESSURE - MAXIMUM OUTPUT (in compliance with DIN 4788) D1790 kcal/h MINIMUM GAS PRESSURE - OUTPUT Pressure: detected at the pressure test-point 8) (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 Overload Protection against radio interference Suppressor Relay Ionisation probe Burner terminal strip Ignition transformer Fan motor Burner earth Air pressure switch RMG Control box ATTENTION In the case of phase-phase feed, a bridge must be fitted on the control box terminal board between terminal 6 and the earth terminal.
  • 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 Safety control device system Limit control device system Leak detection control device Adjustement 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) S7507 The air pressure switch setting shall be carried out after having 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 combus- tion 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: Normal Operation / Flame Detection Time

    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: Burner Start-Up Cycle Diagnostics

    BURNER START-UP CYCLE DIAGNOSTICS During start-up, indication is according to the followin table: COLOUR CODE TABLE Sequences Colour code ● ● ● ● ● ● ● ● ● ● ● Pre-purging ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● Ignition phase ❑...
  • 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...

This manual is also suitable for:

Gas 5

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