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Installation, use and maintenance instructions
Dual fuel light oil/gas burners
GB
Progressive two-stage or modulating operation for gas applications
Progressive two-stage operation for light oil applications
20110085
C9333453
C9333400 - C9333410 - C9333401
CODE
MODEL
RLS 38/E
RLS 50/E
RLS 50/E
20027066 (9) - 03/2016
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Table of Contents
Related Manuals for Riello RLS 38/E
Summary of Contents for Riello RLS 38/E
- Page 1 Installation, use and maintenance instructions Dual fuel light oil/gas burners Progressive two-stage or modulating operation for gas applications Progressive two-stage operation for light oil applications CODE MODEL 20110085 RLS 38/E C9333453 RLS 50/E C9333400 - C9333410 - C9333401 RLS 50/E 20027066 (9) - 03/2016...
- Page 2 Original instructions...
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Page 3: Table Of Contents
Contents Information and general instructions ..............3 Information about the instruction manual . - Page 4 Contents Burner start-up................28 5.4.1 Adjusting gas/air delivery.
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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 38/E RLS 50/E Output stage MBtu/hr 882 - 1666 1092 - 2198 Delivery 258 - 488 320 - 644 6.3 - 11.9 7.8 - 15.7 min. 1... -
Page 9: Burner Models Designation
W max Total electrical consumption 1700 Electrical protection NEMA 1 Tab. C Burner models designation Model Code RBNA code Voltage Flame safeguard RLS 38/E 20109673 20110085 120/1/60 Burner mounted RLS 50/E 20108619 C9333453 120/1/60 Burner mounted C9333400 208/220/3/60 RLS 50/E... -
Page 10: Burner Description
Technical description of the burner Burner description 17 18 D10464 Fig. 2 Combustion head 24 Switch “OFF-ON” 50 “KG2” relay Ignition electrodes 25 Burner terminal strip 51 “K2” relay Screw for combustion head adjust- 26 Minimum oil pressure switch 52 “K1” relay ment 27 Pump motor 53 “K3”... -
Page 11: Burner Dimensions
H. Note that if you need to examine the combustion head, the burner must be pulled backward on the slide bars and turned upward. D10233 Fig. 3 inch RLS 38/E - 13 32” 32” 4” 32”... -
Page 12: Firing Rate
26. Model MBtu/hr RLS 38/E NOTE: RLS 50/E the firing rate areas given in Fig. 4 have been reduced by 10% with respect to the maximum range that can be reached. -
Page 13: Minimum Furnace Dimensions
Technical description of the burner Minimum furnace dimensions The firing rates were set in relation to certified test boilers. Example: Fig. 5 indicates the diameter and length of the test combustion output 1388 MBtu/hr: diameter 20 inch - length 4.9 ft. chamber. -
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 Legend to sequence diagrams (Fig. 7 and Fig. 8) 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 –...
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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. 10). The position of the threaded holes can be marked using the head gasket supplied with the burner. inch RLS 38/E 32“ 16“ RLS 50/E 32“ 16“... -
Page 21: Blast Tube Length
The range of lengths available, L (inch), is as follows: the blast tube. For boilers having a water-cooled front the insulation 11)-12) is not Model required unless it is required by the boiler manufacturer. (short blast tube) (long blast tube) RLS 38/E “ “ RLS 50/E “ “ 4"... -
Page 22: Choice Of Nozzles For 1St And 2Nd Stage
The two nozzles usually have equal deliveries. MBTU/h Nozzle 145 PSI 174 PSI 203 PSI 174 PSI D1122 2.50 3.07 3.39 3.68 Fig. 12 3.00 3.68 4.07 4.42 RLS 38/E 3.50 4.32 4.74 5.16 4.00 4.93 5.44 5.89 4.50 5.54 6.12 6.63 5.00 6.15... -
Page 23: Burner Refitting
Installation Burner refitting ➤ Refit the burner 4)(Fig. 16) 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: Hydraulic System
Installation 4.10 Hydraulic system 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 D2596... -
Page 25: Hydraulic Connections
Installation 4.11 Hydraulic connections The pumps are equipped with a by-pass that connects return line and suction line. The pumps are installed on the burner with the by-pass closed by screw 6), see diagram Fig. 18 at page 22. It is therefore necessary to connect both hoses to the pump. The pump seal will be damaged immediately if it is run with the return line closed and the by-pass screw inserted. -
Page 26: Gas Train
A high fire ouput of 1704 MBtu/hr shown in Tab. K corresponds to D2545 4.45” WC pressure. This value serves as a rough guide, the effective delivery must be measured at the gas meter. ∆p (“ WC) RLS 38/E MBtu/hr Natural gas 3.46 3.58 Fig. 23 1098 3.70... -
Page 27: Electrical Wiring
Installation 4.15 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 28: 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 29: Adjustments Before First Firing - Gas Operation
Start-up, calibration and operation of the burner Adjustments before first firing - gas operation Adjustment of the combustion head has been illustrated on page 26. In addition, the following adjustments must also be made: ➤ open manual valves down stream and up stream from the gas train. -
Page 30: 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 5.4.1 Adjusting gas/air delivery boiler panel. ➤ Move slowly towards the maximum output (but- Close the thermostats/pressure switches, set the parameters on terfly gas valve completely open);... -
Page 31: Burner Calibration - Light Oil Operation
Start-up, calibration and operation of the burner Burner calibration - light oil operation Pump pressure It is advisable to first set the burner for opera- 174 PSI: this is the pressure calibrated in the factory which is usu- tion on oil and then for gas. ally sufficient for most purposes. -
Page 32: Air Pressure Switch
Start-up, calibration and operation of the burner Air pressure switch The air pressure switch is connected in differential (Fig. 33) and is activated by both the negative pressure of the air intake and the air pressure from the fan. Adjust the air pressure switch (Fig. 29) after having performed all other burner adjustments with the air pressure switch set to the min. -
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 electricity supply from the burner by It allows you to reduce consumption and polluting emissions and means of the main switch of the system. - Page 34 Maintenance UV scanner Clean the glass cover from any dust that may have accumulated. In order to reach the UV scanner, unscrew the screw 1)(Fig. 36) and extract the flame sensor with the relevant support 2). D10440 Fig. 36 Combustion head Open the burner and make sure that all components of the com- bustion head are in good condition, not deformed by the high tem- peratures, free of impurities from the surroundings and correctly...
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Page 35: Opening The Burner
Maintenance Opening the burner 6.3.1 To close the burner To close the burner proceed sa follows: Disconnect the electrical supply from the burner by means of the main system switch. ➤ push the burner until it is about 4” from the sleeve; ➤... -
Page 36: A Appendix - Spare Parts
Appendix - Spare parts Appendix - Spare parts 20027066... - Page 37 Appendix - Spare parts CODE DESCRIPTION • • • 20027030 AIR DAMPER ASSEMBLY • • • 3013014 CONDENSER • • • 20030705 CONTACTOR • • • 3013015 CONNECTOR • • • 3013016 COIL • • • 3013017 PUMP • • • 3006717 JOINT •...
- Page 38 Appendix - Spare parts CODE DESCRIPTION • 20027431 CONTACTOR - THERMAL RELAY • • • 3003830 SOUND DAMPING • • • 3013004 FLANGE AND ELBOW • • • 3003794 H.T. LEAD • • • 3005483 SEAL • • • 3012938 TRANSFORMER •...
- Page 39 Appendix - Spare parts CODE DESCRIPTION • • • 3020071 BASE • • • 20010969 RELAY • • • 20096592 POWER REGULATOR • • • 3007166 SEAL • • • 3003003 PISTON SEAL • • • 20029667 CONNECTOR • • • 20019263 •...
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Page 40: B Appendix - Accessories
Appendix - Accessories Appendix - Accessories • Kit for lengthening the combustion head Burner Standard length Length obtainable with kit Code RLS 38/E ” ” 3010265 RLS 50/E ” ” 3010266 • Kit for LPG operation Burner Code RLS 38-50/E 3010304 •... -
Page 41: Appendix - Burner Start Up Report
Appendix - Burner start up report Appendix - Burner start up report Model number: Serial number: Project name: Start-up date: Installing contractor: Phone number: GAS OPERATION : Low Fire Gas Supply Pressure: High Fire : Low Fire Main Power Supply: High Fire Control Power Supply: CO: Low Fire... - Page 44 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.com RIELLO BURNERS NORTH AMERICA http://www.riello.ca 35 Pond Park Road 2165 Meadowpine Blvd Hingham, Massachusetts, Mississauga, Ontario U.S.A. 02043 1-800-4-RIELLO Canada L5N 6H6 Subject to modifications...