Related Manuals for Riello 20032946
Summary of Contents for Riello 20032946
- Page 1 Installation, use and maintenance instructions Dual fuel gas oil/ gas burners Two stage operation CODE MODEL TYPE 20032946 RLS 28 684T1 20032981 RLS 38 685T1 20032988 RLS 50 686T1 20033283 (2) - 10/2016...
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Page 3: Table Of Contents
Contents Declaration....................................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 Danger: live components............................. 4 Guarantee and responsibility............................5 Guidance for the use of bio fuel blends up to 10%...................... 5 2.3.1 Information and general instructions ........................... - Page 4 Contents Electrical system..................................24 Notes on safety for the electrical wiring ........................24 Electrical connections ..............................24 Calibration of thermal relay ............................25 Current to the UV photocell............................25 Start-up, calibration and operation of the burner ........................26 Notes on safety for the first start-up ...........................26 Adjustment before first firing (gas oil operation) ......................26 7.2.1 Combustion head setting ............................26...
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Page 5: Declaration
CO max: 9 mg/kWh CO max: 10 mg/kWh NOx max: 156 mg/kWh NOx max: 104 mg/kWh 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 20033283... -
Page 6: Information And General Warnings
Information and general warnings Information and general warnings Information about the instruction manual 2.1.1 Introduction 2.1.3 Danger: live components The instruction manual supplied with the burner: This symbol indicates operations which, if not car- is an integral and essential part of the product and must not ried out correctly, lead to electric shocks with le- be separated from it;... -
Page 7: Guarantee And Responsibility
All components within the hydraulic circuit suitable for manual, operating negligence, incorrect installa- bio fuel use and supplied by Riello will be identified as Bio com- tion and carrying out of non authorised modifica- patible. No warranty is given in relation to the use of components... -
Page 8: Information And General Instructions
If this is not completed then due to the hydro- In no event shall Riello (and its subsidiaries) be liable for any in- scopic nature of Bio fuel, it will effectively clean the tank,... -
Page 9: Safety And Prevention
Safety and prevention Safety and prevention Introduction The burners have been designed and built in compliance with it can be applied to boilers operating with water, steam, diather- current regulations and directives, applying the known technical mic oil, and to other uses expressly named by the manufacturer; rules of safety and envisaging all the potential danger situations. -
Page 10: Technical Description Of The Burner
3 / 220V / 60Hz - 3N / 380V / 60Hz Auxiliary voltage : 230/50/60 230V / 50-60Hz 110/50/60 110V / 50-60Hz 1/230/50 230/50 BASIC DESIGNATION EXTENDED DESIGNATION Models available Designation Electrical supply Code RLS 28 1/230/50 20032946 RLS 38 1/230/50 20032981 RLS 50 3/230-400/50 20032988 20033283... -
Page 11: Technical Data
Technical description of the burner Technical data Model RLS 28 RLS 38 RLS 50 Type 684T1 685T1 686T1 Output stage 163 - 325 232 - 442 290 - 581 Delivery kg/h 13.7 - 27.4 19.6 - 37.3 24.5 - 49 min. -
Page 12: Packaging - Weight
Technical description of the burner Packaging - Weight • The burners are shipped in cardboard boxes with the maxi- mum dimensions shown in Tab. B. • The weight of the burner complete with packaging is indicat- ed in Tab. B. Fig. -
Page 13: Firing Rates
Technical description of the burner Firing rates The burners can work in two ways: one stage and two stage. RLS 28 MAXIMUM OUTPUT must be selected in area A (and B for model RLS 50). In order to utilize also area B (RLS 50) it is necessary to perform the calibration of the combustion head as explained on page 15. -
Page 14: Burner Description
Bio blend, it will be essential to use flexible oil 5 - Fairleads for electrical connections lines suitable for bio fuel use. (RLS 28-38 single phase) Please contact Riello for further information. WARNING 6 - Fairleads for electrical connections (RLS 50 three phase) 2 - Hoses... -
Page 15: Installation
Installation Installation Notes on safety for the installation After carefully cleaning all around the area where the burner will The installation of the burner must be carried out be installed, and arranging the correct lighting of the environ- by qualified personnel, as indicated in this manual ment, proceed with the installation operations. -
Page 16: Installer/Servicer Notes For The Use Of Gas Oil With Bio Blends Up To 10
10%" within the burner technical manual). be suitable for bio fuel use (check with Riello if in doubt). If a Bio blend is in use the installer must seek information... -
Page 17: Blast Tube Length
Installation Blast tube length The length of the blast tube must be selected according to the in- For boilers with front flue passes 13)(Fig. 9) or flame inversion dications provided by the manufacturer of the boiler, and in any chambers, protective fettling in refractory material 11) must be in- case it must be greater than the thickness of the boiler door com- serted between the boiler fettling 12) and the blast tube 10). -
Page 18: Nozzle Installation
In order to guarantee that emissions do not vary, recommended Fitting the spanner through the central hole in the flame sta- and/or alternative nozzles specified by Riello in the Instruction bility disk or loosen screws 1)(Fig. 13). and warning booklet should be used. -
Page 19: Servomotor
Installation When fitting the burner on the two slide bars, it is advisable to gently draw out the high tension ca- bles until they are slightly stretched. WARNING D1147 D1124 Fig. 13 The nozzle for the 1st stage of operation is the one lying beneath the firing electrodes (Fig. -
Page 20: Gas Oil Supply
DANGER You are advised to use additional filters on the fuel supply line. Riello recommends a good quality fuel filter at the CAUTION tank (Fig. 17 - Fig. 18) and a secondary filter (100 for gas oil and 15 for kerosene) are used to protect the burner pump and nozzle from con- tamination. -
Page 21: 5.11.2 Single-Pipe Circuit
Installation 5.11.2 Single-pipe circuit In order to obtain single-pipe working it is necessary to unscrew the return hose, remove the by-pass screw 6)(Fig. 19) and then screw the plug 7)(Fig. 19). The distance “P” must not exceed 10 meters in order to avoid subjecting the pump's seal to excessive strain;... -
Page 22: Hydraulic Connections
Bio blend, it will be essential to use flexible oil Before starting the burner, make sure that the lines suitable for bio fuel use. tank return line is not clogged. Please contact Riello for further information. WARNING Obstructions in the line could cause the seal- WARNING ing organ located on the pump shaft to break. -
Page 23: Gas Supply
Installation 5.15 Gas supply 5.15.1 Gas line The gas train must be connected to the gas attachment 1)(Fig. 23), using flange 2), gasket 3) and screws 4) supplied with the burner. The gas train can enter the burner from the right or left side, de- pending on which is the most convenient, see Fig. -
Page 24: 5.15.2 Gas Train
Installation 5.15.2 Gas train It is type-approved according to EN 676 Standards and is sup- plied separately from the burner with the code indicated in Tab. J. Gas train - L (Fig. 24) Burner Ø C.T. Code RLS 28 RLS 38 - 50 Code Code •... - Page 25 Installation Gas pressure measured at test point 1)(Fig. 25), with: – Combustion chamber at 0 mbar – Burner operating in 2nd stage – Gas G20 (methane) - G31 (propane) Column 2 (Tab. K) D900 Pressure loss of gas train 2)(Fig. 25) with gas G20 includes: –...
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Page 26: Electrical System
Pg 11 Single-phase power supply destination and by qualified personnel. Pg 9 Remote control device TL Riello S.p.A. declines all liability for modifications WARNING Pg 9 Remote control device TR or connections other than those shown on these Pg 11 Gas valves diagrams. -
Page 27: Calibration Of Thermal Relay
Electrical system Calibration of thermal relay The RLS 28 - 38 - 50 burners are factory set for two-stage This is required to avoid motor burn-out in the event of a signifi- cant increase in power absorption caused by a missing phase. operation and must therefore be connected to control device TR. -
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: Adjustment Before First Firing (Gas Operation)
Start-up, calibration and operation of the burner Combustion head stage fan air gate valve The adjustment of the combustion head already carried out Keep the burner operating at 1st stage by setting the switch (page 26) need not be altered unless the 2 stage delivery of the 2)(Fig. -
Page 30: Burner Starting (Gas Operation)
Start-up, calibration and operation of the burner Burner starting (gas operation) If voltage is present, then immediately stop the burner and check It is advisable to first set the burner for operating electrical connections. on oil and then for gas. Execute the fuel exchange when the burner is off. -
Page 31: Air Pressure Switch - Co Check
Start-up, calibration and operation of the burner 7.7.4 Air pressure switch - CO check such a manner the air pressure switch operates as differential pressure switch. Adjust the air pressure switch after having performed all other burner adjustments with the air pressure switch set to the start of The use of the air pressure switch with differential the scale (Fig. -
Page 32: Burner Operation
Start-up, calibration and operation of the burner Burner operation NORMAL FIRING 7.9.2 Led panel (n° = seconds from instant 0) The burners are fitted with an electronic device, which supplies a diagnostic of burner status. It provides 6 data items signalled by the leds lighting up. See Fig. -
Page 33: Lpg - Propane - Butane Operation
Start-up, calibration and operation of the burner 7.10 LPG - Propane - Butane operation The burners can also operate on LPG-Propane- Butane gases. In this case it is necessary to substitute the six nozzles 2)(Fig. 41) screwed into the holes 1), suitable for natural gas, with those for LPG-Propane- Butane, supplied with the burner. -
Page 34: Maintenance
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 to keep the product in a reliable state over time. - Page 35 Maintenance Combustion GAS OIL OPERATION In case the combustion values found at the beginning of the inter- vention do not respect the standards in force or, in any case, do Filters not correspond to a proper combustion, contact the Technical Check the filtering baskets on line and at nozzle present in the Assistant and have him carry out the necessary adjustments.
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Page 36: Opening The Burner
Maintenance Opening the burner Disconnect the electrical supply from the burner. DANGER – Remove screws 1)(Fig. 44) and withdraw cover 2). – Disconnect the hoses 3). – Remove screw 5), the split pin 9) and pull the burner back by about 100 mm on the slide bars 6). -
Page 37: Faults - Possible Causes - Solutions
Faults - Possible causes - Solutions Faults - Possible causes - Solutions Find a list of faults, causes and possible solutions for a set of failures that may occur and result in irregular burner operation or no functioning at all. If a burner malfunction is detected, first of all: •... - Page 38 Faults - Possible causes - Solutions GAS OIL OPERATION SYMBOL FAULT PROBABLE CAUSE SUGGESTED REMEDY Defective control box Replace Ignition electrode wrongly adjusted Adjust Grounded electrode due to broken insulation Replace Pump/motor coupling broken Replace Ignition transformer defective Replace The flame ignites normally but Defective photocell or control box Replace photocell or control box the burner locks out when the...
- Page 39 Faults - Possible causes - Solutions GAS OPERATION SYMBOL FAULT PROBABLE CAUSE SUGGESTED REMEDY The burner does not start Close all switches and check con- No electrical power supply nections A limiter or safety control device is open Adjust or replace Control box lock-out Reset control box Replace...
- Page 40 Faults - Possible causes - Solutions GAS OPERATION SYMBOL FAULT PROBABLE CAUSE SUGGESTED REMEDY The burner repeats the start- Mains gas pressure is near the valve to which the ing cycle without lock out min. gas pressure switch gas is adjusted. The repeated drop in pressure which follows valve opening causes temporary opening of the Reduce operating pressure of...
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Page 41: A Appendix - Accessories (Optional)
Appendix - Accessories (optional) Appendix - Accessories (optional) EXTENDED HEAD KIT LPG KIT “Standard head” burners can be transformed into “extended For burning LPG gas, a dedicated kit is available with RLS dual head” versions, by using the special kit. The kits available for the fuel burners. -
Page 42: B Appendix - Electrical Panel Layout
Appendix - Electrical panel layout Appendix - Electrical panel layout ELECTRICAL EQUIPMENT FACTORY-SET RLS 28 20126462 Fig. 1 RLS 38 20126463 Fig. 2 20033283... - Page 43 Appendix - Electrical panel layout RLS 50 20126464 Fig. 3 Key to layout (Fig. 1 - Fig. 2 - Fig. 3) - Blue - White - Brown - Black - Capacitor - Motor contactor - Relay LFL 1..- Control box - Switch: burner off - on - Switch: 1 stage operation...
- Page 44 Appendix - Electrical panel layout TO BE COMPLETED BY THE INSTALLER RLS 28 - 38 (single-phase power) WITHOUT LEAK DETECTION CONTROL DEVICE D3489 Fig. 4 RLS 50 (three-phase power) WITHOUT LEAK DETECTION CONTROL DEVICE D3491 Fig. 5 RLS 28 - 38 (single-phase power) WITH VPS LEAK DETECTION CONTROL DEVICE D3490...
- Page 45 Appendix - Electrical panel layout RLS 50 (three-phase power) WITH VPS LEAK DETECTION CONTROL DEVICE D3492 Fig. 7 Key to layout (Fig. 4 - Fig. 5 - Fig. 6 - Fig. 7) stage hour counter Gas valve leak detection control takes place im- stage hour counter mediately before every burner starting.
- 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...