Riello RLS 70 Installation Instruction
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Riello RLS 70 Installation Instruction

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Installation, use and maintenance instructions
Dual fuel light oil / gas burners
Progressive two-stage or modulating operation
CODE
C9534000 (3485070)
C9534001 (3485075)
C9535000 (3485270)
C9535001 (3485275)
C9536000 (3485470)
C9536001 (3485475)
MODEL
RLS 70
RLS 70
RLS 100
RLS 100
RLS 130
RLS 130
TYPE
687T70
687T70
688T70
688T70
689T70
689T70
2916046 (7) - 10/2010

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Summary of Contents for Riello RLS 70

  • Page 1 Installation, use and maintenance instructions Dual fuel light oil / gas burners Progressive two-stage or modulating operation CODE MODEL TYPE C9534000 (3485070) RLS 70 687T70 C9534001 (3485075) RLS 70 687T70 C9535000 (3485270) RLS 100 688T70 C9535001 (3485275) RLS 100 688T70...

  • Page 3: Table Of Contents

    Contents Information and general instructions ..............3 Information about the instruction manual .
  • Page 4 Contents 4.19 High gas pressure switch ................23 4.20 Low gas pressure switch .

  • Page 5: Information And General Instructions

    Information and general instructions Information and general instructions Information about the instruction manual 1.1.1 Introduction 1.1.4 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 be ried out correctly, lead to electric shocks with lethal separated from it;...

  • Page 6: Guarantee And Responsibility

    Information and general instructions Guarantee and responsibility The manufacturer guarantees its new products from the installa- 1.2.1 Owner’s responsibility tion date, in accordance with the regulations in force and/or the Please pay attention to the Safety Warnings contained within sales contract. At the moment of the first start-up, check that the this instruction manual.

  • Page 7: Safety And Prevention

    Safety and prevention Safety and prevention Introduction The burners have been designed and built in compliance with manufacturer; current regulations and directives, applying the known technical the type and pressure of the fuel, the voltage and frequency of rules of safety and envisaging all the potential danger situations. the electrical power supply, the minimum and maximum deliv- eries for which the burner has been regulated, the pressurisa- It is necessary, however, to bear in mind that the imprudent and...

  • Page 8: Technical Description Of The Burner

    Technical description of the burner Technical description of the burner Burner models designation Model Code Voltage Flame safeguard C9534000 (3485070) 208-230/460/3/60 Burner mounted RLS 70 C9534001 (3485075) 575/3/60 Burner mounted C9535000 (3485270) 208-230/460/3/60 Burner mounted RLS 100 C9535001 (3485275) 575/3/60...

  • Page 9: Accessories (Optional)

    70-100-130 burners to operate on LPG. L = Standard length L1 = Length obtainable with the kit • Gas train according to UL Standards: see page 17. Code 3010267 • RLS 70 L = 9 L1 = 15 32” 32” Code 3010268 •...

  • Page 10: Burner Description

    Technical description of the burner Burner description D2299 Fig. 3 Combustion head 19 Air pressure test point Ignition electrodes 20 Servomotor Screw for combustion head adjustment When the burner is not operating the air damper is fully closed Sleeve in order to reduce heat loss. Relay for oil / gas selection 21 Pump motor Fan motor...

  • Page 11: Firing Rates

    Technical description of the burner Firing rates MAXIMUM OUTPUT must be selected in area A. RLS 70 In order to increase to area B (RLS 130) it is necessary to perform the calibration of the combustion head as explained on page 12.

  • Page 12: Procedure To Refer Burner Operating Condition In High Altitude Plants

    Technical description of the burner Procedure to refer burner operating condition in high altitude plants Find the corrected burner capacity for the plant’s altitude in chart 1 Example and the corrected pressure in chart 2. Rated capacity = 3000 MBtu/hr - Rated air pressure = 1.5”w.c. Check in the firing rate graph of the burner page 9, if the working Real altitude = 5000 ft - Real temperature = 108°F point defined by the values above is within the range limits.
  • Page 13 Technical description of the burner CORRECTED BURNER AIR PRESSURE ACCORDING TO ALTITUDE Altitude m. a.s.l. 1220 1525 1830 2135 2440 Rated Pressure ft a.s.l 1000 2000 3000 4000 5000 6000 7000 8000 0,50 0,49 0,50 0,51 0,53 0,55 0,57 0,59 0,62 0,64 0,67...

  • Page 14: Installation

    Boiler plate Drill the combustion chamber mounting plate as shown in (Fig. 6). D455 The position of the threaded holes can be marked using the gasket supplied with the burner. inch RLS 70 “ “ - 12 “ RLS 100 “...

  • Page 15: Nozzle Selection

    Installation Nozzle selection Both nozzles must be chosen from among those listed in (Tab. H). Nozzle MBtu/hr The first nozzle determines the delivery of the burner in low fire. size 174 PSI 145 PSI 174 PSI 203 PSI The second nozzle combines together with the 1st nozzle to deter- 5.00 6.15 6.79...

  • Page 16: Adjustments Before First Firing (Light-Oil Operation)

    Installation Refit the burner to the slide bars 3) (Fig. 13) at approximately 4” from the sleeve 4) - burner positioned as shown in (Fig. 7, page 12) - insert the ignition electrode cables and then slide the burner up to the sleeve so that it is positioned as shown in (Fig.

  • Page 17: Oil Hydraulic System Layout

    Installation Oil hydraulic system layout Legend (Fig. 18) 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 low oil pressure switch Vacuum gauge 4.8.1 Oil pressure switch The oil pressure switch 22) (Fig.

  • Page 18: Suntec Aj4 Cc Pump

    It is good practice to ensure that the return and suction lines enter the burner from the same height; in this way it will be more improb- able that the suction line fails to prime or stops priming. L ft RLS 70 - 100 - 130 Ø inch ” ”...

  • Page 19: Gas Line

    Installation 4.11 Gas line • The main gas train must be connected to the gas attachment D2310 1) (Fig. 22), using flange 2), gasket 3) and screws 4) supplied with the burner. • The main gas train can enter the burner from the right or left side.

  • Page 20: Gas Pressure

    Installation 4.13 Gas pressure The adjacent diagrams are used to calculate manifold pressure RLS 70 taking into account combustion chamber pressure. Column 1 Gas manifold pressure measured at test point 1) (Fig. 25), with: • Combustion chamber at 0” WC •...

  • Page 21: Adjustments Before First Firing

    Installation 4.14 Adjustments before first firing Adjustment of the combustion head has been illustrated on – Adjust the air pressure switch to the zero position of the scale page 14. (Fig. 28). – Purge the air from the gas line. In addition, the following adjustments must also be made: –...

  • Page 22: Servomotor

    Installation 4.15 Servomotor In the Fig. 32 and Fig. 33 shows how the servomotor is released to manually check there is no binding though its motion. Don’t release the button indicated in this figure: the syncronization of the cams made in factory would be changed.

  • Page 23: Cams And Trim Potentiometers Functions

    Installation 4.16 Cams and trim potentiometers functions Trim potentiometer MAX (gas only) Cam 1: 130° (GAS only) Limits maximum modulation. Limits rotation towards maximum for gas. It must be set near the stroke end (cam 1) to exploit as far as pos- Cam 2: 0°...

  • Page 24: Maximum Output

    Installation 4.17.3 Maximum output Turn the burner on with switch C) (Fig. 34) on AUTO and the slide switch on OPE. Using button B) (Fig. 34), "increase output" until it stops, app. 130° After firing, turn the switch 1) (Fig. 35, page 21) to MAN position, (cam 1).

  • Page 25: Air Pressure Switch

    Installation 4.18 Air pressure switch Adjust the air pressure switch after having performed all other burn- The air pressure switch may operate in "differential" operation in er adjustments with the air pressure switch set to the start of the two pipe system. If a negative pressure in the combustion chamber scale (Fig.

  • Page 26: Maintenance

    Maintenance Maintenance Combustion UV scanner The optimum calibration of the burner requires an analysis of the Clean the glass cover from any dust that may have accumulated. flue gases. Significant differences with respect to the previous The scanner 1) (Fig. 40) is held in position by a pressure fit and can measurements indicate the points where more care should be ex- therefore be removed by pulling it outward forcefully.

  • Page 27: Opening The Burner

    Maintenance Opening the burner 5.1.1 To open the burner – Switch off the electrical power – Loosen screws 1) and withdraw the cover 2)(Fig. 41) – Disengage the swivel coupling 7) from the graduated sector. – Disconnect the light-oil pipes. –...

  • Page 28: Electrical System

    Electrical system Electrical system 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 29: Operation Layout

    Electrical system Operation layout See (Fig. 43). High - Low Switching times are given in seconds, in the burner startup se- quence. LFL 1.335 Series 01 37.5 optional optional Tab. J Legend for the times t1 Pre-purge time with air damper open t2 Safety time t3 Pre-ignition time, short (ignition transformer on terminal 16) t4 Interval between start of t2 and release of valve at terminal 19...
  • Page 30 Electrical system Factory Wiring Diagram RLS 70 - 100 - 130 Field Wiring Diagram RLS 70 - 100 - 130 With burner mounted Siemens LFL control With burner mounted Siemens LFL control See attached insert for wiring diagram D2316 Fig. 45 Key to layouts (Fig.
  • Page 31 The setting of the thermal overload must be according to the to- tal burner amperage draw. • The RLS 70-100-130 burners leave the factory preset for: – 208-230 V power supply: only in this case, if 460 V power supply is required, change the fan and the pump motor con- nection from delta to star and change the setting of the ther- mal overload as well;...
  • Page 32 Electrical system 6046...
  • Page 33 Electrical system 6046...
  • Page 34 Electrical system Key to layouts UV cell Thermal overload (fan motor) Thermal overload (pump motor) K... Relay Fan motor contactor Pump motor contactor Fan motor Pump motor Air pressure switch High gas pressure switch Oil pressure switch Servomotor Ignition transformer (pilot) Ignition transformer (oil) Burner ground Burner terminal strip...

  • Page 35: 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 fail- If a burner malfunction is detected, first of all: ures that may occur and result in irregular burner operation or no •...
  • Page 36 Faults - Possible causes - Solutions BURNER START UP REPORT Model number: Serial number: Project name: Start-up date: Installing contractor: Phone number: GAS OPERATION Gas Supply Pressure: : Low Fire High Fire Main Power Supply: : Low Fire High Fire Control Power Supply: CO: Low Fire High Fire...

  • Page 37: Spare Parts

    Spare parts Spare parts Exploded spare parts list 6046...

  • Page 38: Spare Parts List

    Spare parts Spare parts list COD. DESCRIPTION • • • • • • 3003948 AIR DAMPER ASSEMBLY • • • • • • 3003949 GRID • • • • • • 3013038 OVERLOAD • • • • • • 3012384 OIL PRESSURE SWITCH •...
  • Page 39 Spare parts COD. DESCRIPTION • • • • • • 3012012 HALF-SHELL • • • • • • 3003891 CONNECTOR • • • • • • 3003481 SCREW • • • • • • 3012013 • • • • • • 3006721 SCREW •...
  • Page 40 Spare parts COD. DESCRIPTION • • • 3013063 MOTOR 575V • • • • • • 3009087 CONNECTOR • • • • • • 3013049 PILOT TUBE • • • • • • 3013523 PUMP • • • • • • 3003936 FILTER + SEAL •...
  • Page 44 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.rielloburners.com RIELLO BURNERS NORTH AMERICA 1-800-4-RIELLO 35 Pond Park Road 2165 Meadowpine Blvd Hingham, Massachusetts, 1-800-474-3556 Mississauga, Ontario U.S.A. 02043 Canada L5N 6H6 http://www.riello-burners.com Subject to modifications...

This manual is also suitable for:

Rls 100Rls 130

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