Table of Contents
Related Manuals for Riello 896 T
Summary of Contents for Riello 896 T
- Page 1 Installation, use and maintenance instructions Forced draught gas burners Progressive two-stage or modulating operation CODE MODEL TYPE 3789900 - 3789910 RS 64/E MZ 896 T 3789901 - 3789911 RS 64/E MZ 896 T 20022445 (3) - 11/2012...
- Page 2 The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001. 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...
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Page 3: Table Of Contents
Contents Section Page Information and general instructions Information about the instruction manual Guarantee and responsibility Safety and prevention Introduction Personnel training Technical description of the burner Burner designation Models available Burner categories - Countries of destination Technical data Electrical data Packaging Overall dimensions Firing rates... -
Page 4: Information And General Instructions
Information and general instructions Information about the instruction manual Introduction DANGER: LIVE COMPONENTS The instruction manual supplied with the burner: This symbol indicates operations which, if not is an integral and essential part of the product and must not carried out correctly, lead to electric shocks be separated from it;... -
Page 5: Safety And Prevention
Safety and prevention Introduction burners have been designed and built in compliance In particular: with current regulations and directives, applying the known tech- it can be applied to boilers operating with water, steam, dia- nical rules of safety and envisaging all the potential danger situ- thermic oil, and to other users expressly named by the man- ations. -
Page 6: Technical Description Of The Burner
Technical description of the burner Burner designation Range : Fuel : Natural gas Light oil Light oil / Natural gas Heavy oil Size Adjustment : Electronic cam Electronic cam and variable speed (with Inverter) Mechanical cam Proportional air/gas valve Emission : Class 1 EN267 (light oil) - EN676 (gas) Class 2 EN267 (light oil) - EN676 (gas) Class 3 EN267 (light oil) - EN676 (gas) -
Page 7: Technical Data
Technical description of the burner Technical data Model RS 64/E MZ Type 896 T Output maximum 400 - 850 Mcal/h 345 - 730 minimum Mcal/h Fuel Natural gas: G20 (methane gas) - G21 - G22 - G23 - G25 Gas pressure at max. output... -
Page 8: Overall Dimensions
Technical description of the burner Overall dimensions The dimensions of the burner are shown in Fig. 2. Bear in mind that inspection of the combustion head requires the burner to be opened and the rear part drawn back on the guides. The dimensions of the open burner are indicated by dimension O. -
Page 9: Burner Components
Technical description of the burner Burner components seen from A Fig. 5 D8140 1 Combustion head 16 Cable grommets for electrical wiring (to be carried out by the installer) 2 Ignition electrode 17 Air servomotor 3 Screw for combustion head adjustment 18 Air pressure switch (differential type) 4 Pipe coupling 19 Guides for opening the burner and inspecting the combus-... -
Page 10: Control Box For The Air/Fuel Ratio
Technical description of the burner 3.11 Control box for the air/fuel ratio Fig. 6 D8266 Introduction Technical Data The control box for the air/fuel ratio (hereafter referred to simply AC 230V - 15% / Electrical supply as the control box), that equips the burners of the RS range, car- +10% ries out a series of integrated functions in order to optimise 50/60 Hz +/- 6%... -
Page 11: Servomotors
Technical description of the burner 3.12 Servomotors Introduction The servomotors fitted to the RS series burners act directly on the air damper and on the gas butterfly valve without mechanical leverages but rather with the introduction of an elestic joint. They are commanded by the control box, which constantly checks their position by means of a return signal from the optic sensor inside the ser- vomotor. -
Page 12: Installation
Installation Notes on safety for the installation After carefully cleaning all around the area where the burner will be installed, and arranging the correct lighting of the environment, proceed with the installation operations. All the installation, maintenance and disassem- The installation of the burner must be carried out bly operations must be carried out with the elec- by qualified personnel, as indicated in this man- tricity supply disconnected. -
Page 13: Securing The Burner To The Boiler
Installation Securing the burner to the boiler Introduction The burnerRS 64/E MZ is suitable both for boilers with inverted flame* (the long head model is advised in this case), as well as for boilers with combustion chamber with runoff from the base (three circulations of smoke) on which the best NO low emission results are obtained. - Page 14 Installation Securing the burner to the boiler Before fixing the burner to the boiler, check from the opening of the blast tube that the probe and the electrode are correctly positioned, as in Fig. 14. If, in the previous check, the position of the probe or electrode was not correct, remove the screw 1)(Fig. 15), extract the inner part 2)(Fig.
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Page 15: Combustion Head Adjustment
Installation Combustion head adjustment At this point of the installation, the combustion head is fixed to the boiler as shown in Fig. 15. Its adjustment is therefore particularly easy, which depends solely on the maximum out- put of the burner. This value must be set before adjusting the combustion head. - Page 16 Installation Once the combustion head adjustment is completed: When fitting the burner on the two guides, it is reassemble the burner on the guides 3) at about 100 mm advisable to gently draw out the high voltage from the pipe coupling 4) - burner in the position shown in cable and flame detection probe cable until they Fig.
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Page 17: Assembly Of The Gas Train
Installation Assembly of the gas train The gas train is type-approved according to standard EN 676 and is sup- plied separately from the burner, with the code indicated in Appendix B. The gas train can enter the burner from the right or left side, depending ... -
Page 18: Electrical Wiring
Installation Electrical wiring Notes on safety for the electrical wiring The electrical wiring must be carried out with the electrical supply disconnected. Electrical wiring must be carried out by qualified personnel and in compliance with the regulations currently in force in ... -
Page 19: Calibration Of The Thermal Relay
Installation Calibration of the thermal relay The thermal relay serves to avoid damage to the motor due to an excessive absorption increase or if a phase is missing. Refer to the table in wiring diagram 6 od Appendix A for the calibration. -
Page 20: Start-Up, Calibration And Operation Of The Burner
Start-up, calibration and operation of the burner Notes on safety for the first start-up The first start-up of the burner must be carried out Check the correct working of the adjustment, com- by qualified personnel, as indicated in this manual mand and safety devices. -
Page 21: Burner Start-Up
Start-up, calibration and operation of the burner Burner start-up Feed electricity to the burner via the disconnecting switch on the boiler panel. Close the thermostats/pressure switches and turn the switch of Fig. 28 to position “1”. Make sure that the lamps or testers connected to the solenoids, or indicator lights on the solenoids themselves, show that no voltage is present. - Page 22 Start-up, calibration and operation of the burner Maximum gas pressure switch Adjust the maximum gas pressure switch after having per- formed all other burner adjustments with the maximum gas pressure switch set to the end of the scale (Fig. 30). With the burner operating at maximum output, lower adjust- ment pressure by slowly turning the relative knob anti-clock- wise until the burner locks out.
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Page 23: Operator Panel With Lcd Display
Start-up, calibration and operation of the burner Operator panel with LCD display Description of the symbols Lock-out lamp Lockout Flame presence Valve powered Ignition transformer powered Fan motor powered Pre-heater active only for burners of fuel oil Fig. 33 Request for heat D8268 Parameters Mode active Key to units of measurement... -
Page 24: Visualisation And Programming Modes
Start-up, calibration and operation of the burner Visualisation and programming modes The Operator Panel, and especially the display visualisation, has 4 working modes: Normal Mode Info Mode (InFo) Service Mode (Ser) Parameters Mode (PArA) The information for accessing and operating at the various levels is given below. Normal Mode Visualises the operation conditions and allows you to modify the operation point of the burner manually. - Page 25 Start-up, calibration and operation of the burner m³ m³/h l/h % The display visualises alternately an error code and a diagnostic, which does not take the system into safety mode. m³ m³/h l/h % Reset procedure The burner is in lockout when the red indicator light on the Operator Panel is switched m³...
- Page 26 Start-up, calibration and operation of the burner From Normal Mode, using the keys of the Operator Panel, it is possible to activate one of the three visualisation/programming modes: Info Mode (InFo) Visualisation modes Service Mode (Ser) Service Mode (Ser) Programming modes Info Mode Service Mode Visualises the general system information.
- Page 27 Start-up, calibration and operation of the burner Parameters Mode Visualises and allows you to modify/program the complete list of To access this level, refer to “Access procedure with password”. parameters, shown in the table on page 34. Once the access procedure has been carried out, the display will The factory-set parameters are not visible.
- Page 28 Start-up, calibration and operation of the burner Parameter modification procedure Procedure for inserting and adjusting points on the modulation curve Nine adjustment/calibration points (P1 - P9) can be inserted in After accessing the level the control box for each servomotor, varying their position by de- and group of parameters, grees and, consequently, the quantity of air and fuel introduced.
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Page 29: Operation Sequence Of The Burner
Start-up, calibration and operation of the burner Operation sequence of the burner Signal ON Operation Signal OFF Start-up Switching off Checking of Any signal is allowed seal TSA1 Number of the phase 12 22 24 30 36 38 40 42 44 60 62 70 72 74 80 81 82 83 Thermostat/pressure switch safety TS... -
Page 30: Start-Up Procedure
Start-up, calibration and operation of the burner Start-up procedure Check that the display of the Operator Panel shows request for heat and “OFF Upr”: this means it is necessary to set the modulation curve of the burner. m³/h l/h % m³... - Page 31 Start-up, calibration and operation of the burner After adjusting point “P1”, press the key “+”: the display shows “CALC” for a few seconds. The control box will automatically calculate the points from “P2” to “P8”, distributing them in a straight line, assuming for point “P9” the factory setting (see the table below).
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Page 32: Calc Function
Start-up, calibration and operation of the burner CALC function D7908 D7909 original curve CALC+ CALC- Recalculation Point of the curve Fig. 35 Point of the curve Fig. 36 The diagram of Fig. 35 shows how the fuel modulation curve is The diagram of Fig. -
Page 33: Steady State Operation
Start-up, calibration and operation of the burner 5.11 Steady state operation 5.15 Measuring the ionisation current The burner is fitted with an ionisation system to check that a Burner without modulating operation kit flame is present. Once the start-up cycle is completed, the servomotor command The minimum current for control box operation is 4 µA. -
Page 34: List Of Parameters
5.18 List of parameters Parameter Values interval Number of Unit of meas- Degree of Predefined Modification Access mode elements urement precision setting No. par. Description Min. Max. General parameters Control box identification date Reading only Info Mode Control box identification number Reading only 65535 Info Mode... - Page 35 Parameter Values interval Number of Unit of meas- Modifica- Degree of Predefined Access mode elements urement tion precision setting No. par. Description Min. Max. Selection of the burner operation during the interruption of the switch-over with the system of remote management. 0 = burner switched off With modulating operation the settings of the values are the following: 0...19.9 = burner switched off...
- Page 36 Parameter Values interval Number of Unit of meas- Modifica- Degree of pre- Predefined Access mode elements urement tion cision setting No. par. Description Min. Max. Gas: Selection of flame sensor 0 = QRB.../ QRC Modification Parameters Mode 1 = ION / QRA Gas: Selection of the pre-purging function Modification Parameters Mode...
- Page 37 Parameter Values interval Number of Unit of meas- Modifica- Degree of Predefined Access mode elements urement tion precision setting No. par. Description Min. Max. Position of the air servomotor in absence of flame (°) Modification 0° 90° 0.1° 0°; 90°; 45° Parameters Mode Index 0 = standby position Index 1 = pre-purging position...
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Page 38: Faults - Possible Causes - Solutions
Faults - Possible causes - Solutions If faults arise in ignition or operations, the burner performs a "safety stop", which is signalled by the red burner lockout LED. The display visualises alternately the lockout code and the relative diagnostic. To reset the start-up conditions, refer to “Reset procedure”. When the burner starts up again, the red LED goes out. List of error codes Error Diagnostic... - Page 39 Faults - Possible causes - Solutions Error Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Reference error of a servomotor The reference of the fuel servomotor was not successful. Bit 0 It was not possible to reach the reference point. Reference error of the fuel servomotor Valence 1 1.
- Page 40 Faults - Possible causes - Solutions Error Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Relay supervision error 2 Safety valve 3 Ignition transformer The relay does not start up Carry out a reset; if the error arises repeatedly, replace the unit 4 Fuel valve 1 5 Fuel valve 2 6 Fuel valve 3...
- Page 41 Faults - Possible causes - Solutions Error Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Internal error – backup / restoration Restoration – OK, but backup < compared with set data of Restoration successful, but the backup data installed are fewer than those currently present in current system the system.
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Page 42: Maintenance
Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, Before carrying out any maintenance, cleaning or checking oper- safety, yield and duration of the burner. ations: It allows you to reduce consumption and polluting emissions and disconnect the electricity supply from the burner by to keep the product in a reliable state over time. -
Page 43: Opening The Burner
Maintenance Opening the burner Closing the burner Remove the split pin 9) and push the burner until it is approx. Disconnect the electrical supply from the burner. Loosen the screws 1) and remove the hood 2). 100 mm from the pipe coupling. ... -
Page 44: A Appendix - Electrical Panel Layout
Appendix - Electrical panel layout Index of layouts Indication of references Functional layout REC27... Functional layout REC27... Functional layout REC27... Electrical wiring that the installer is responsible for Electrical wiring Kit RWF40... external Indication of references /1.A1 Sheet no. Co-ordinates 20022445... - Page 45 Appendix - Electrical panel layout Wiring layout key - Control box for the air/fuel ratio - Maximum gas pressure switch - Operator panel - Minimum gas pressure switch PGMin - Filter to protect against radio disturbance - Gas pressure switch for valve leak detection con- PGVP - Burners components trol device...
- Page 46 Appendix - Electrical panel layout 20022445...
- Page 47 Appendix - Electrical panel layout 20022445...
- Page 48 Appendix - Electrical panel layout 20022445...
- Page 49 Appendix - Electrical panel layout 20022445...
- Page 50 Appendix - Electrical panel layout 20022445...
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Page 51: Appendix - Accessories (On Request)
Appendix - Accessories (on request) Output power regulator kit for modulating operation With the modulating operation, the burner continually adapts the power to the request for heat, ensuring great stability for the parameter controlled: temperature or pressure. Two components should be ordered: •... -
Page 52: Appendix - Gas Supply Pressure
Appendix - Gas supply pressure The adjacent tables show minimum load p (mbar) RS 64/E MZ losses along the gas supply line depending on the maximum burner output operation. Column 1 Ø 3/4” Ø 1”1/4 Ø 1”1/4 Ø 1”1/2 Ø 2” Ø... -
Page 53: D Appendix - Firing Rate On Basis Of Air Density
Appendix - Firing rate on basis of air density The firing rate of the burner shown in the manual is valid for a 4 -Trace a vertical line from point A, Fig. 41, and find the maxi- room temperature of 20 °C and an altitude of 0 m above sea level mum pressure H2 of the firing rate. - Page 56 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.rielloburners.com Subject to modifications...