Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Riello RLS 28/E
Summary of Contents for Riello RLS 28/E
- Page 1 Installation, use and maintenance instructions Dual fuel light oil/gas burner Progressive two-stage or modulating operation for gas applications Progressive two-stage operation for light oil applications CODE MODEL 20059556 RLS 28/E 20059594 (3) - 01/2015...
-
Page 3: Table Of Contents
Contents Information and general instructions ..............3 Information about the instruction manual . - Page 4 Contents 5.2.2 Combustion head................28 5.2.3 Pump adjustment.
-
Page 5: Information And General Instructions
Information and general instructions Information and general instructions Information about the instruction manual 1.1.1 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 be away from moving mechanical parts;... -
Page 6: Delivery Of The System And The Instruction Manual
Information and general instructions 1.1.4 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 7: Safety And Prevention
Safety and prevention Safety and prevention Introduction The burners have been designed and built in compliance with cur- the type and pressure of the fuel, the voltage and frequency of the rent regulations and directives, applying the known technical rules electrical power supply, the minimum and maximum deliveries for of safety and envisaging all the potential danger situations. -
Page 8: Technical Description Of The Burner
Technical description of the burner Technical description of the burner Technical data Model RLS 28/E Output stage MBtu/hr 616 - 1232 Delivery 181 - 361 4.4 - 8.8 min. 1 stage MBtu/hr Fuel #2 Light oil Natural gas / Propane gas Gas pressure at maximum delivery ”... -
Page 9: Packaging - Weight
Packaging - weight The burners are skid mounted. Outer dimensions of packaging are indicated in (Tab. D). The weight of the burner complete with packaging is indicated in (Tab. D). inch RLS 28/E 4“ 8“ 32“ Tab. D Fig. 1 Burner dimensions The maximum dimensions of the burners are given in (Fig. -
Page 10: Burner Description
Technical description of the burner Burner description 20060204 Fig. 3 Combustion head Ignition electrodes Screw for combustion head adjustment Sleeve Air pressure test point-head Gas pressure test piont and head fixing screw Screw securing fan to sleeve Slide bars for opening the burner and inspecting the combus- tion head Pump 10 Safety solenoid valve... -
Page 11: Panel Board Description
Technical description of the burner Panel board description 20060609 Fig. 4 Air pressure switch (differential operating type) 26 “K5” relay “OIL-OFF-GAS” switch 27 “K3” relay Fan motor contactor and thermal overload with reset button 28 “K1” relay Control box for checking flame and air/fuel ratio 29 DIN bar available for accessories (OCI 412.10) “OFF-ON”... -
Page 12: Firing Rate
Consult “Procedure to refer burner operating condition in high alti- Model MBtu/hr tude plants”. RLS 28/E Tab. F The firing rate area values have been obtained con- sidering an ambient temperature of 68 °F (20 °C), and an atmospheric pressure of 394” WC and with... - Page 13 Technical description of the burner Steps 2 - 5 must now be repeated using the new Qr and H1r values. "w.c. NOTE: the combustion head must be adjusted in respect to the equiv- alent delivery Qe. MBtu/hr D2617 Fig. 6 Average barom.
-
Page 14: Control Box For The Air/Fuel Ratio (Lmv36.5
Technical description of the burner 3.10 Control box for the air/fuel ratio (LMV36.5...) Warning notes To avoid injury to persons, damage to property or the environment, the following warning notes must be observed! WARNING The LMV36.5... is a safety device! Do not open, interfere with or modify the unit. - Page 15 Technical description of the burner Technical data LMV36.5... basic unit Mains voltage AC 120 V -15 % / +10 % Mains frequency 50 / 60 Hz ±6 % Power consumption < 30 W (typically) Safety class I, with parts according to II and III to DIN EN 60730-1 Terminal loading Unit fuse F1 (internally) 6.3 AT...
- Page 16 Technical description of the burner Sequence diagrams Gas direct ignition «G», Operation «G mod», «Gmod pneu» Control thermostat or pressurestat (R) ON Air pressure switch (LP) Pressure switch - leakage test (P LT) POC (alternative to pressure switch-max (Pmax) Fan motor (M) Ignition transformer (Z) Fuel valve 1 (V1) Fuel valve 2 (V2)
- Page 17 Technical description of the burner Light oil direct ignition «Lo», Operation «Lo mod», «Lo 2-stage», «Lo 3-stage» Control thermostat or pressurestat (R) ON Air pressure switch (LP) POC (alternative to pressure switch-max (Pmax) Fan motor (M) Ignition transformer (Z) Fuel valve 1 (V1) Fuel valve 2 (V2) Alarm (AL) 0°...
- Page 18 Technical description of the burner Key to sequence diagrams (Fig. 8 and Fig. 9) Valve proving takes place depending on the parameter: Between phase 62 and phase 70 or / and between phase 24 and phase 30 Parameter:Short / long preignition time for oil only Short / long oil pump –...
-
Page 19: Actuators (Sqm33.5
Technical description of the burner 3.11 Actuators (SQM33.5...) Warning notes To avoid injury to persons, damage to property or the environment, the following warning notes should be observed! WARNING Do not open, interfere with or modify the actua- tors! ➤ All activities (mounting, installation and service work, etc.) must be performed by qualified staff. -
Page 20: Installation
Boiler plate Drill the combustion chamber mounting plate as shown in Fig. 11. The position of the threaded holes can be marked using the head gasket supplied with the burner. inch RLS 28/E 32“ 16“ Tab. H D455 Fig. 11... -
Page 21: Blast Tube Length
4.6.1 Choice of nozzles for 1 and 2 stage and/or alternative nozzles specified by Riello in the Instruction and Both nozzles must be chosen from among those listed in Tab. I at warning booklet should be used. page 20. The first nozzle determines the delivery of the burner at low fire. -
Page 22: Nozzle Assembly
Installation MBTU/h 145 PSI 174 PSI 203 PSI 174 PSI 2.00 2.47 2.72 2.95 2.25 2.75 3.04 3.33 2.50 3.07 3.39 3.68 3.00 3.68 4.07 4.42 3.50 4.32 4.74 5.16 Tab. I Example: boiler output = 1360 MBtu/hr efficiency 80 % Output required by the burner: 1360/0.8 = 1700 MBtu/hr;... -
Page 23: Burner Refitting
Installation Burner refitting ➤ Refit the burner 4)(Fig. 17) to the slide bars 3) at approxi- ➤ secure the burner to the sleeve by tightening screw 1); mately 4” from the sleeve 5) - burner positioned as shown in ➤ connect the oil pipes again by screwing on the two connectors Fig. -
Page 24: Light Oil Supply
Installation 4.10 Light oil supply Explosion danger due to fuel leaks in the presence L (ft) +/- H of a flammable source. Ø 5/16” Ø 3/8” Ø 1/2” Precautions: avoid knocking, attrition, sparks and + 13 heat. + 10 Make sure that the fuel interception tap is closed + 6.6 before performing any operation on the burner. -
Page 25: 4.10.2 Hydraulic System
Installation 4.10.2 Hydraulic system Key (Fig. 21) Pump suction Filter Pump Pressure regulator Return pipe By-pass screw Pump return Safety solenoid Low fire valve 10 High fire valve 11 Filter M Pressure gauge Min. oil pressure switch Vacuum gauge 4.10.3 Hydraulic connections The pumps are equipped with a by-pass that connects return line and suction line. -
Page 26: 4.10.4 Pump
Installation 4.10.4 Pump Technical data Pump model SUNTEC AL 65 Min. delivery rate at 174 PSI pressure 21.5 Delivery pressure range 58 - 261 Max. suction pressure “Hg Viscosity range 2 - 12 Max light oil temperature °F 140 - 60 D2542 Max. -
Page 27: Gas Supply
Installation 4.11 Gas supply Explosion danger due to fuel leaks in the presence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure that the fuel interception tap is closed before performing any operation on the burner. The fuel supply line must be installed by qualified personnel, in compliance with current standards D10471... -
Page 28: 4.11.3 Gas Pressure
Installation 4.11.3 Gas pressure ∆ ∆ ∆ ∆ p (“ WC) MBtu/hr The Tab. L are used to calculate manifold pressure taking into ac- 2.56 count combustion chamber pressure. 2.68 2.87 Gas manifold pressure measured at test point 1)(Fig. 26), with: 3.15 –... -
Page 29: 4.12 Electrical Wiring
Installation 4.12 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 the country of destination. -
Page 30: 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 Check the correct working of the adjustment, com- by qualified personnel, as indicated in this manual mand and safety devices. -
Page 31: Adjustments Before First Firing (Gas Operation)
Start-up, calibration and operation of the burner 203 PSI: in order to increase fuel delivery or to ensure firings The fan air damper is adjusted by moving the servomotor to drive even at temperatures of less than 0 °C. from the air/fuel ratio. In order to adjust pump pressure, use the screw 5)(Fig. -
Page 32: 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. LOCAL REMOTE Close the thermostats/pressure switches, set the parameters on the RWF 40 regulator. Please refer to the spacific manual for this operation. ➤... -
Page 33: Final Calibration Of The Pressure Switches
Start-up, calibration and operation of the burner Final calibration of the pressure switches 5.8.1 Minimum gas pressure switch Adjust the minimum gas pressure switch (Fig. 32) after having per- formed all the other burner adjustments with the pressure switch set at the start of the scale. With the burner operating at high fire, increase adjustment pres- sure by slowly turning the relative dial clockwise until the burner locks out. -
Page 34: Final Checks (With The Burner Working)
Start-up, calibration and operation of the burner Final checks (with the burner working) ➮ ➤ Open the control limit operation The burner must stop ➤ Open the high limit operation ➤ Rotate the maximum gas pressure switch knob to the mini- ➮... -
Page 35: Maintenance
Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, safe- ty, yield and duration of the burner. Disconnect the electrical supply from the burner by It allows you to reduce consumption and polluting emissions and to means of the main system switch. - Page 36 Maintenance LIGHT OIL OPERATION GAS OPERATION Pump Gas leaks The depression must be less than 0.45 bar Make sure that there are no gas leaks on the pipework between the gas meter and the burner. Unusual noise must not be evident during pump operation If the pressure is found to be unstable or if the pump runs noisily, Gas filter the flexible hose must be detached from the line filter and the fuel...
-
Page 37: 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 interception tap. DANGER Wait for the components in contact with heat sourc- es to cool down completely. To open the burner proceed sa follows: ➤... -
Page 38: A Appendix - Spare Parts
Appendix - Spare parts Appendix - Spare parts 20059594... - Page 39 Appendix - Spare parts CODE DESCRIPTION 20027030 AIR DAMPER 3013014 CAPACITOR 20030705 CONTACTOR 20031413 HORN 3013016 COIL 3013017 PUMP 3006717 JOINT 3005843 MOTOR 3012985 3003763 INSPECTION WINDOW 20026772 20026773 COVER 3013727 SCREW 20026784 VIEWING PORT 3012953 SOCKET 3013037 CONNECTOR 3012952 SOLENOID VALVE 20029633 OIL TUBE...
- Page 40 Appendix - Spare parts CODE DESCRIPTION 20029653 TUBE 3003863 PLUG 3003873 TEST POINT 3013196 CONTROL DEVICE 20060069 MANIFOLD 3012734 SEAL 3003805 SHUTTER 3012313 END CONE 3003322 CONNECTOR 3012384 OIL PRESSURE SWITCH 20029659 TUBE 3003681 CONNECTOR 20029662 CONNECTOR 3007079 SEAL 3014194 HUB + GRADUATE SECTOR 20010967 DISPLAY...
-
Page 41: B Appendix - Accessories
Appendix - Accessories Appendix - Accessories Gas train according to UL Standards The installer is responsible for the supply and instal- lation of any required safety device(s) not indicated in this manual. WARNING 20059594...
Need help?
Do you have a question about the RLS 28/E and is the answer not in the manual?
Questions and answers