Riello Two stage operation forced draught natural gas/propane burner Instruction Manual

Installation, use and maintenance instructionsForced draught gas burners2916350 (4) - 03/2008Code Model Type3897430 - 3897432 RS 68/E BLU 846 T1389743

10GBTechnical description of the burner33.8 Burner components3.9 Burner equipment1 Combustion head2 Ignition electrode3 Screw for combustion head adju

11GBTechnical description of the burner33.10 Control box for the air/fuel ratioIntroductionThe control box for the air/fuel ratio (hereafter referred

12GB3.11 ServomotorsTechnical dataFuel servomotorAir servomotorModel SQM33.4.. SQM33.5..Type of motor Stepping motorElectrical supply AC/DC 24VIP IP54

13GBInstallation44.1 Notes on safety for the installationAfter carefully cleaning all around the area where the burner will be installed, and arrangin

14GBInstallation4.5 Securing the burner to the boilerIntroductionFig. 10The burners RS 68/E BLU - RS 120/E BLU - RS 160/E BLUand RS 200/E BLU are suit

15GBInstallationSecuring the burner to the boilerBefore fixing the burner to the boiler, check from the opening of the blast tube that the probe and t

16GBInstallation4.7 Adjustment of the combustion headAt this point of the installation, the combustion head is fixedto the boiler as shown in Fig. 14.

17GBInstallationOnce the combustion head adjustment is completed:³ reassemble the burner on the guides 3) at about 100 mmfrom the pipe coupling 4) - b

18GB4.8 Assembly of the gas train³ The gas train is type-approved according to standard EN 676 and is sup-plied separately from the burner, with the c

19GBInstallation4.9 Electrical wiringIf the hood is still present, remove itand proceed with the electrical wiringaccording to the layouts shown inApp

2GBDeclaration of conformity in accordance with ISO / IEC 17050-1Manufacturer: RIELLO S.p.A.Address: Via Pilade Riello, 737045 Legnago (VR)Product: Fo

20GBInstallation4.10 Calibration of the thermal relayThe thermal relay is used to avoid damage to the motorowing to a strong increase in absorption or

21GB5.1 Notes on safety for the first start-up5.2 Operations before start-up ³ Ensure that the gas supply company has carried out the supply line vent

22GBStart-up, calibration and operation of the burner55.4 Final calibration of the pressure switchesAir pressure switch Adjust the air pressure switch

23GBStart-up, calibration and operation of the burner5Maximum gas pressure switchAdjust the maximum gas pressure switch after having per-formed all ot

24GB5.5 Operator panel with LCD displayDescription of the keysKey Function- Adjustment of the fuel servomotor (keep pressed and adjust the value by

25GB5.6 Visualisation and programming modes The Operator Panel, and especially the display visualisation, has 4 working modes:³ Normal Mode³ Info Mode

26GBThe display visualises alternately an error code and a diagnostic, which does not take the sys-tem into safety mode.D7716Pm³/hm³ ll/h %D7717Pm³/hm

27GBStart-up, calibration and operation of the burner5List of the parameters that can be visualised (in the sequencein which they are visualised) Visu

28GBVisualises and allows you to modify/program the complete list ofparameters, shown in the table on page 34.The factory-set parameters are not visib

29GBStart-up, calibration and operation of the burner5Parameter modification procedure Find below an example of how to modify the parameter relatingt

3GBContentsSection Pag.1Information and general instructions 41.1 Information about the instruction manual 41.2 Guarantee and responsibility 42Safety

30GB5.7 Operation sequence of the burner00 01 10 12 22 24 30 36 3840 42 44 60 62 70 72 74 80 81 82 83 90PaPPPPPList of the phasesPh00Lockout phasePh01

31GB5.8 Start-up procedureCheck that the display of the Operator Panel shows the request for heat and “OFF Upr”: thismeans it is necessary to set the

32GBFactory settingsAfter ignition (point “P0”), proceed with the calibration of the modulation curve,starting from the minimum point “P1”.Press the k

33GBStart-up, calibration and operation of the burner55.10 Burner adjustmentOutput upon ignitionAccording to the regulation EN 676.Burners with MAX ou

34GB5.11 Steady state operationBurner without modulating operation kitOnce the start-up cycle is completed, the servomotor commandmoves on to the ther

35GB5.18 List of parametersParameterNumber of elementsUnit of meas-urementModificationValues intervalDegree of precisionPredefined set-tingAccess mode

36GBParameterNumber of elementsUnit of meas-urementModifica-tionValues intervalDegree of preci-sionPredefined set-tingAccess modeNo. par. Description

37GBParameterNumber of elementsUnit of meas-urementModifica-tionValues intervalDegree of preci-sionPredefined set-tingAccess modeNo. par. Description

38GBParameterNumber of elementsUnit of meas-urementModifica-tionValues intervalDegree of preci-sionPredefined set-tingAccess modeNo. par. Description

39GBIf faults arise in ignition or operations, the burner performs a "safety stop", which is signalled by the red burner lockout LED. The di

4GBInformation and general instructions11.1 Information about the instruction manualIntroductionThe instruction manual supplied with the burner:³ is a

40GBError codeDiagnosticcodeMeaning of the system REC27.100A2 Recommended measures 85 #Reference error of a servomotorBit 0Valence 1Reference error of

41GBError codeDiagnosticcodeMeaning of the system REC27.100A2 Recommended measures 98 # Relay supervision error2 Safety valve3 Ignition transformer4

42GBError codeDiagnosticcodeMeaning of the system REC27.100A2 Recommended measures137 # Internal error – backup / restoration157Restoration – OK, but

43GB7.1 Notes on safety for the maintenanceThe periodic maintenance is essential for the good operation,safety, yield and duration of the burner.It al

44GB7.3 Opening the burner³ Disconnect the electrical supply from the burner.³ Loosen the 4 screws 1) and remove the hood 2).³ Assemble the two extens

45GBIndex of layouts2Indication of references3Functional layout REC27...4Functional layout REC27...5Functional layout REC27...6Electrical wiring that

46GBAppendix - Electrical panel layoutA

47GBAppendix - Electrical panel layoutA

48GBAppendix - Electrical panel layoutA

49GBAppendix - Electrical panel layoutA

5GBSafety and prevention22.1 IntroductionThe burners have been designed and built in compliancewith current regulations and directives, applying the

50GBAppendix - Electrical panel layoutA

51GBAppendix - Electrical panel layoutA

52GBOutput power regulator kit for modulating operationWith the modulating operation, the burner continually adapts the power to the request for heat

53GBAppendix - Gas supply pressureCThe adjacent tables show minimum load losses alongthe gas supply line depending on the maximum burneroutput operati

54GBAppendix - Gas supply pressureCTo know the required gas pressure at test point 1)(Fig.40), set the maximum output required from the burneroperatio

55GBAppendix - Firing rate on basis of air densityDThe firing rate of the burner shown in the manual is valid for aroom temperature of 20°C and an alt

RIELLO S.p.A.I - 37045 Legnago (VR)Tel.: +39.0442.630111 http:// www.riello.ithttp:// www.rielloburners.comSubject to modifications

6GBTechnical description of the burner33.1 Burner designation3.2 Models availableDesignation Voltage CodeRS 68/E BLU TC 3 ~ 400 / 230V - 50Hz 3897430

7GBTechnical description of the burner33.3 Technical data(1) Reference conditions: Room temperature 20°C - Gas temperature 15°C - Barometric pressure

8GB3.5 Packaging3.6 Overall dimensionsD36• The packaging of the burner rests on a wooden platform that is particularly suitable forlift trucks. The ov

9GBTechnical description of the burner33.7 Firing rates The firing rates were obtained in spe-cial test boilers, according to EN 676regulations.Fig. 4