Riello RS 28 Installation, Use And Maintenance Instructions
Forced draught gas burners
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- Installation, use and maintenance instructions (64 pages)
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Summary of Contents for Riello RS 28
- Page 1 Installation, use and maintenance instructions Forced draught gas burners Progressive two-stage operation CODE MODEL TYPE 3783302 RS 28 809 T1 3784402 RS 38 810 T1 3784403 RS 38 810 T1 3784502 RS 38 810 T1 3784503 RS 38 810 T1...
- Page 2 Translation of the original instructions...
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Page 3: Table Of Contents
Contents Declarations....................................3 Information and general warnings............................4 Information about the instruction manual ........................4 2.1.1 Introduction.................................. 4 2.1.2 General dangers................................4 2.1.3 Other symbols ................................4 2.1.4 Delivery of the system and the instruction manual...................... 5 Guarantee and responsibility............................5 Safety and prevention................................ - Page 4 Contents 6.5.2 Output in 2nd stage..............................25 6.5.3 Output in 1st stage ..............................26 6.5.4 Intermediate outputs ..............................26 Pressure switch adjustment ............................27 6.6.1 Air pressure switch..............................27 6.6.2 Gas minimum pressure switch ...........................27 6.6.3 Flame presence check ...............................27 Servomotor adjustment ..............................28 Burner operation ................................29 6.8.1 Burner start-up ................................29 6.8.2...
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Page 5: Declarations
ISO 9001:2015. The quality is guaranteed by a quality and management system certified in accordance with Legnago, 01.12.2015 General Manager Research and Development Director RIELLO S.p.A. - Burners Department RIELLO S.p.A. - Burners Department Eng. U. Ferretti Eng. F. Comencini 20144599... -
Page 6: Information And General Warnings
Information and general warnings Information and general warnings Information about the instruction manual 2.1.1 Introduction WARNING: MOVING PARTS The instruction manual supplied with the burner: This symbol indicates that you must keep limbs is an integral and essential part of the product and must not away from moving mechanical parts;... -
Page 7: Delivery Of The System And The Instruction Manual
Information and general warnings 2.1.4 Delivery of the system and the instruction The system supplier must carefully inform the user about: – the use of the system; manual – any further tests that may be required before activating the When the system is delivered, it is important that: system;... -
Page 8: Safety And Prevention
Safety and prevention Safety and prevention Introduction The burners have been designed and built in compliance with the type and pressure of the fuel, the voltage and frequency of the current regulations and directives, applying the known technical electrical power supply, the minimum and maximum deliveries for rules of safety and envisaging all the potential danger situations. -
Page 9: Technical Description Of The Burner
Voltage of auxiliaries: 230/50/60 230V / 50-60Hz 110/50/60 110V / 50-60Hz 3/230/50 230/50/60 BASIC DESIGNATION EXTENDED DESIGNATION Models available Designation Voltage Start-up Code RS 28 1/230/50 Direct 3783302 RS 38 1/230/50 Direct 3784402 RS 38 1/230/50 Direct 3784403 RS 38 3/230-400/50... -
Page 10: Burner Categories - Countries Of Destination
SE - FI - AT - GR - DK - ES - GB - IT - IE - PT - IS - CH - NO 2ELL (43.46 ÷ 45.3 MJ/m (0°C)) 2L - 2E - 2E(R)B LU - PL Technical data MODEL RS 28 RS 38 RS 38 RS 50 TYPE 809 T1 810 T1 810 T1 811 T1 OUTPUT... -
Page 11: Maximum Dimensions
Cable grommets for the electrical wiring ....No. 4 (RS 28 and RS 38 single-phase) Cable grommets for the electrical wiring ....No. 6 (RS 38 three-phase and RS 50) Instruction . -
Page 12: Firing Rates
ATTENTION The MINIMUM OUTPUT must not be lower than the minimum shown on page 18. limit of the diagram: RS 28 = 81 kW RS 38 = 105 kW RS 50 = 115 KW RS 28 D3612... -
Page 13: Test Boiler
Technical description of the burner Test boiler The burner/boiler combination does not pose any problems if the Example: boiler is EC approved and its combustion chamber dimensions Output 350 kW: diameter 50 cm - length 1.5 m. are similar to those indicated in the diagram (Fig. 3). If the burner must be combined with a boiler that has not been EC 4.9.1 Commercial boilers... -
Page 14: Burner Description
16 Boiler fixing flange 17 Flame stability disc 18 Flame inspection window 19 Plug-socket on ionisation probe cable 20 Motor contactor and thermal relay with reset button (RS 38 three-phase - RS 50) 21 Motor capacitor (RS 28 - RS 38 single-phase) 20144599... -
Page 15: 4.11 Control Box Rmg88
To avoid accidents, material or environmental damage, observe the following instructions! The control box RMG88... is a safety device! ATTENTION Avoid opening or modifying it, or forcing its operation. Riello S.p.A. cannot assume any responsibility damage resulting from unauthorised interventions! ... -
Page 16: 4.12 Servomotor Sqm
Technical description of the burner 4.12 Servomotor SQM.. Important notes 20143391 To avoid accidents, material or environmental damage, observe the following instructions! Avoid opening, modifying forcing ATTENTION servomotor. All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel. ... -
Page 17: Installation
Installation Installation Notes on safety for the installation After carefully cleaning all around the area where the burner is to The installation of the burner must be carried out be installed, and arranging for the environment to be illuminated by qualified personnel, as indicated in this manual correctly, proceed with the installation operations. -
Page 18: Operating Position
Separate the combustion head from the rest of the burner (Fig. 10): RS 28 Remove screw 14) and extract cover 15). Disengage the articulated coupling 4) from the graduated RS 38... -
Page 19: Access To Head Internal Part
If in the previous check the position of the probe or electrode was not correct, remove the screw 1) (Fig. 11) extract the inner part Respect the dimensions shown in Fig. 12. 2)(Fig. 11) of the head, and adjust them. ATTENTION PROBE ELECTRODE RS 28-38 ELECTRODE RS 50 Fig. 12 D880 20144599... -
Page 20: 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. 11. It is therefore especially easy to adjust, and this adjustment depends only on the maximum output of the burner. 2 combustion head adjustments are available: –... -
Page 21: Gas Supply
Installation Gas supply Explosion danger due to fuel leaks in the MBC “threaded” presence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure the fuel shut-off valve is closed before performing any operation on the burner. The fuel supply line must be installed by qualified personnel, in compliance with current standards and laws. -
Page 22: Gas Train
Installation 5.9.2 Gas train 5.9.4 Gas pressure Type-approved in accordance with EN 676 and supplied Tab. F indicates the pressure drops of the combustion head and separately from the burner. gas butterfly valve, on the basis of the burner operating output. To select the correct gas train model, refer to the manual "Burner- 1 p (mbar) Model... - Page 23 8.6 - 2.0 6.6 mbar A pressure of 6.6 mbar, column 1, corresponds in table RS 28 to a 2nd stage output of 289 kW. This value serves as a rough guide; the effective output must be measured at the gas meter.
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Page 24: Electrical Connections
Avoid condensate, ice and water leaks from forming. Fig. 21 DANGER Use flexible cables according to EN 60 335-1 Regulations: RS 28 and RS 38 single-phase Pg 11 Single-phase power supply •if in PVC sheath, use at least H05 VV-F Pg 11 Gas valves •if in rubber sheath, use at least H05 RR-F. -
Page 25: Thermal Relay Adjustment (Rs 38-50 Three-Phase)
Fig. 22 The RS 28-38-50 burners leave the factory ready for two-stage operation and must therefore be connected to the TR remote D867 control. -
Page 26: Start-Up, Calibration And Operation Of The Burner
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 Before starting up the burner, refer to section by qualified personnel, as indicated in this manual "Safety test - with no gas supply”... -
Page 27: Burner Ignition
Start-up, calibration and operation of the burner Burner ignition Once the above steps are completed, the burner should ignite. If the burner locks out again, refer to chapter "Faults - Possible causes - Solutions” on page 34. If the motor starts but the flame does not appear and the control box goes into lockout, reset and wait for a new ignition attempt. -
Page 28: Output In 1St Stage
Start-up, calibration and operation of the burner Air adjustment 6.5.4 Intermediate outputs Progressively adjust the end profile of cam 3) (Fig. 26) by turning Adjustment of gas delivery the screws 5). No adjustment is required Turn the screws clockwise to increase air delivery. Turn the screws anticlockwise to reduce air delivery. -
Page 29: Pressure Switch Adjustment
Start-up, calibration and operation of the burner Pressure switch adjustment 6.6.1 Air pressure switch 6.6.2 Gas minimum pressure switch Adjust the air pressure switch after performing all other burner Adjust the minimum gas pressure switch after performing all the adjustments with the air pressure switch set to the start of the other burner adjustments with the pressure switch set to the start scale (Fig. -
Page 30: Servomotor Adjustment
Start-up, calibration and operation of the burner Servomotor adjustment The servomotor provides simultaneous adjustment of the air damper, by means of the variable profile cam and the gas butterfly valve. D517 The angle of rotation of the servomotor is equal to the angle on the graduated sector controlling the gas butterfly valve. -
Page 31: Burner Operation
Start-up, calibration and operation of the burner Burner operation 6.8.1 Burner start-up STANDARD IGNITION (no. = seconds from instant 0) Control remote control TL closes. D3028 Servomotor start-up: turn to the right until the angle set on the cam with the orange lever. After about 3s: The control box starting cycle begins. -
Page 32: Burner Start-Up Cycle Diagnostics
Start-up, calibration and operation of the burner Burner start-up cycle diagnostics 6.9.1 Resetting of control box and diagnostics use During start-up, indication is according to the colour code table (Tab. G). The control box supplied features a diagnostics function, through which any causes of malfunctioning can be easily identified Sequences Colour code... -
Page 33: Maintenance
Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, safety, yield and duration of the burner. Disconnect the electrical supply from the burner It allows you to reduce consumption and polluting emissions and by means of the main system switch. -
Page 34: Combustion Control (Gas)
Maintenance Boiler Clean the boiler as indicated in its accompanying instructions in order to maintain all the original combustion characteristics intact, especially: the flue gas temperature and combustion chamber pressure. Gas leaks D484 Make sure that there are no gas leaks on the pipe between the gas meter and the burner. -
Page 35: Opening The Burner
Maintenance Opening the burner Disconnect the electrical supply from the burner by means of the main system switch. DANGER Close the fuel shut-off valve. DANGER Wait for the components in contact with heat sources to cool down completely. Cut off the voltage. ... -
Page 36: Faults - Possible Causes - Solutions
Faults - Possible causes - Solutions Faults - Possible causes - Solutions In the event the burner stops, in order to prevent In the event there are further lockouts or faults any damage to the installation, do not unblock the with the burner, the maintenance interventions burner more than twice in a row. - Page 37 Faults - Possible causes - Solutions Signal Problem Probable cause Suggested remedy 10 blinks The burner does not Incorrect electrical wiring Check switch on, and the lockout appears The burner goes into Defective control box Replace lockout Presence of electromagnetic disturbances in the Filter or eliminate thermostat lines Presence of electromagnetic disturbance...
- Page 38 Appendix - Accessories Appendix - Accessories Kit for LPG operation The kit allows the RS 28-38-50 burners to operate with LPG. BURNER RS 28 RS 38 RS 50 Output kW 95 ÷ 325 115 ÷ 440 140 ÷ 581 Nozzle length mm...
- Page 39 Electrical system external connections without valve leak detection control for RS 38 - RS 50 THREE-PHASE burners (DIAGRAM B) Electrical system external connections with valve leak detection control for RS 28-38 SINGLE-PHASE burners (DIAGRAM Electrical system external connections with valve leak detection control for RS 38 - RS 50 THREE-PHASE burners...
- Page 40 Appendix - Electrical panel layout 20144599...
- Page 41 Appendix - Electrical panel layout 20144599...
- Page 42 Appendix - Electrical panel layout 20144599...
- Page 43 Appendix - Electrical panel layout 20144599...
- Page 44 Appendix - Electrical panel layout 20144599...
- Page 45 Appendix - Electrical panel layout 20144599...
- Page 46 Appendix - Electrical panel layout 20144599...
- Page 47 Appendix - Electrical panel layout WIRING DIAGRAM KEY DIAGRAM A DIAGRAM (B) Electrical connection without gas valve leak detection Capacitor control Motor contactor Control box (RMG) DIAGRAM (C) Electrical connection with gas valve leak detection control Filter to protect against radio disturbance 1st stage hour counter Relay 2nd stage hour counter...
- Page 48 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.riello.com Subject to modifications...