Riello RX 180 S/PV Installation, Use And Maintenance Instructions
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Riello RX 180 S/PV Installation, Use And Maintenance Instructions

Premixed gas burners
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Istruzioni per installazione, uso e manutenzione
Instructions pour installation, utilisation et entretien
Installation, use and maintenance instructions
Bruciatori di gas premiscelato
I
Brûleurs de gaz prémélangé
F
Premixed gas burners
GB
Funzionamento bistadio progressivo o modulante
Fonctionnement à deux allures progressif ou modulant
Progressive two-stage or modulating operation
RX
CODICE - CODE
3790310 - 3790330
3790300 - 3790320
MODELLO - MODEL
MODELE
RX 180 S/PV
RX 250 S/PV
TIPO
TYPE
908 T
903 T
2903357 (11) - 01/2015

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Summary of Contents for Riello RX 180 S/PV

  • Page 1 Fonctionnement à deux allures progressif ou modulant Progressive two-stage or modulating operation MODELLO - MODEL TIPO CODICE - CODE MODELE TYPE 3790310 - 3790330 RX 180 S/PV 908 T 3790300 - 3790320 RX 250 S/PV 903 T 2903357 (11) - 01/2015...
  • Page 3 Controlling organisation: TÜV Industrie Service GmbH TÜV SÜD Gruppe Ridlerstrase, 65 80339 München DEUTSCHLAND Manufacturer’s Declaration RIELLO S.p.A. declares that the following products comply with the NOx emission limits specified by German standard “1. BImSchV release 26.01.2010”. Product Type Model Power...
  • Page 4 IDENTIFICATION The Identification Plate on the product gives the serial number, model and main technical and perfor- mance data. If the Identification Plate is tampered with, removed or missing, the product cannot be clearly identified, thus making any installation or maintenance work potentially dangerous. GENERAL WARNINGS The dimension of the boiler’s combustion chamber must respond to specific values, in order to guaran- tee a combustion with the lowest polluting emissions rate.

  • Page 5: Table Of Contents

    CONTENTS INFORMATION ABOUT THE INSTRUCTION MANUAL TECHNICAL DATA ....... . page 2 Accessories .

  • Page 6: Technical Data

    TECHNICAL DATA MODEL RX 180 S/PV RX 250 S/PV TYPE 908 T 903 T OUTPUT MAX. Mcal/h MIN. Mcal/h FUEL NATURAL GAS: G20 - G21 - G22 - G23 - G25 - net calorific value kWh/Sm 9.45 8.13 9.45 8.13...

  • Page 7: Burner Description

    Bear in mind that, in order to inspect the com- bustion head, the burner must be pulled back. STANDARD EQUIPMENT 1 - Gas train flange 4 - Valve fixing screws M 5 x 16 RX 180 S/PV 1000 1 - Insulating screen RX 250 S/PV 1000...

  • Page 8: Firing Rates

    • a MAXIMUM OUTPUT, which must not be greater than the maximum limit given on the diagram: RX 180 S/PV = 180 KW RX 250 S/PV = 250 KW • and a MINIMUM OUTPUT, which must not be lower than the minimum limit in the diagram:...

  • Page 9: Output Supplied

    OUTPUT SUPPLIED RX180S/ PV G 20- G 25 RX 180 S/PV G20 - G25 The charts alongside will allow you to determine the output supplied either by reading the num- ber of rotations or by reading the downstream pressure of the gas valve (point 1).

  • Page 10: Installation

    The range of lengths available, L (mm), is as fol- lows: D7792 RX 180 S/PV RX 250 S/PV Non combu- stion zone 160 mm 160 mm The burners cannot be used on flame inversion boilers.

  • Page 11: Fixing The Burner To The Boiler

    FIXING THE BURNER TO THE BOILER Fasten the combustion head 6) to flange 4) by means of the three screws 10) supplied. Make sure you have the seal 11) fit on flange 4). Fasten the electrode unit 17)(A) on flange 4) with the two nuts and screws 16.

  • Page 12: Fuel Supply

    FUEL SUPPLY Air/gas mixer The burners are teamed with one-piece pneu- (Venturi) matic proportioning gas valves, via which the in the suction amount of gas delivered, and hence the output circuit produced, can be modulated. Gas valve A signal reporting pressure detected in the air circuit is carried to the pneumatic gas valve, which delivers an amount of gas in proportion to the airflow produced by the fan.

  • Page 13: Burner Operation

    BURNER OPERATION Maximum output Start ADJUSTMENT BEFORE FIRST FIRING The following to be made are: Minimum output - open the manual valves located upline from the gas train; - bleed the air from the gas pipes using the screw on the socket (page 8). BURNER START-UP Close the thermostat and switch on the burner's power.

  • Page 14: Burner Adjustment

    BURNER ADJUSTMENT To achieve optimal burner adjustment, the flue gases produced by combustion must be ana- lysed as they leave the generator. In conformity with Efficiency Directive 92/42/EEC, the burner must be applied to the generator, adjusted and tested in compliance with the instruction manual of the generator in question, including checking of CO and CO concentration in flue gases and...

  • Page 15: Emission

    EMISSION Class Limit 3 = 80 mg/kWh The burners' emission values (according to EN 676) prove much lower than the limits laid down by the strictest standards. The flame's distribution and its spread over a large surface means that the burner manages to limit the formation of thermal NOx, the main causes of pollutant emission.

  • Page 16: Final Checks

    FINAL CHECKS (with the burner working): • disconnect a wire of the minimum gas pres- sure switch; • switch on the thermostat/pressure switch TL; • switch on the thermostat/pressure switch TS; the burner must stop. • Disconnect the wire of the ionisation probe; the burner must stop in lockout.

  • Page 17: Appendix1 Combustion Manager Cm222

    APPENDIX 1 - COMBUSTION MANAGER CM222 The Combustion Manager CM222 is a microprocessor-controlled gas burner safety control system designed for use with forced draught modu- lating gas burners. OPERATION The range-limits of the potentiometer are expert parameters. Adjustments of the potentiometers are immediately active in all program steps. To deactivate the potentiometers set the minimum limit and the maximum limit of each potentiometer equal.
  • Page 18 SAFETY PARAMETERS Safety parameters Min. Max. OEM-preset Value Prepurge time 51.0 Seconds Safety time 10.0 Seconds Flame stabilization time 25.5 Seconds Start-up attempts Number Postpurge time 51.0 Seconds Pre-Ignition time 25.5 Seconds Ignition reduction time 25.5 Seconds Postpurge speed 9960 1980 R/min Maximum speed...
  • Page 19 BURNER CONTROL PROGRAMM START-UP AND SHUT DOWN Normal operation: Start-up and shut down APS-Supervision: No APS GPS-Supervision: Active Valve-Supervision: Tightness control Behaviour after flame loss: Restart Heat demand Head demand Flame signal Flame signal Air prssure switch Air pressure switch Gas pressure switch Gas pressure switch Ignition device...
  • Page 20 DRAWINGS Chip Analog- Air prssure Gas pressure Reset 3 Stage Thermostat Card Power- switch switch remoto Power (optional) Control (min.) (min.) Control Combustion Manager Failure Safety Ignition Flame Operation Valves Fusibile Ignition Gas-valves Flame Gas-min. Air min. Reset Failure Operation 3-Stage-Controller...

  • Page 21: Appendix2

    NOTE The burners RX 180 S/PV - RX 250 S/PV have been approved for intermittent operation. This means they should be compulsorily stopped at least once every 24 hours to enable the control box to perform a check of its own efficiency at start-up. Normally, the stopping of the burner is guaranteed by the boiler's thermostat/pressure switch.
  • Page 26 LEGENDA SCHEMI ELETTRICI LEGENDE SCHEMAS ELECTRIQUES Apparecchiatura elettrica CM222 Coffret de sécurité électrique CM222 Filtro antiradiodisturbo Filtre anti-brouillage Regolatore di potenza RWF50.2 Régulateur de puissance RWF50.2 Ingresso in corrente 4...20 mA DC Entrée en courant 4...20 mA DC Componenti bordo bruciatori Composants embarqués sur brûleurs Componenti bordo caldaia Composants embarqués sur chaudière...
  • Page 27 KEY TO ELECTRICAL LAYOUT Electrical control box CM222 Suppressor Output power regulator RWF50.2 Input under current 4...20 mA DC Components on burners Components on boiler Pressure probe Pressure probe Two–wire probe Pt100 Three–wire probe Pt100 Four–wire probe Pt100 Input under voltage 0...10 V DC Ionisation probe connector Fuse External signalling of burner lockout...
  • Page 28 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.riello.com Con riserva di modifiche - Sous réserve de modifications - Subject to modifications...

This manual is also suitable for:

Rx 250 s/pv908 t903 t

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