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Installation, use and maintenance instructions Forced draught gas burner Progressive two stage or modulating operation CODE MODEL 20039998 RS 45/M 20040407 (2) - 11/2014...
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;...
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;...
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.
Technical description of the burner Technical description of the burner Technical data Model RS 45/M Output High MBtu/hr 717 - 2037 (1969*) 210 - 597 (577*) MBtu/hr Fuel Natural or propane gas • Max delivery SCFH 2037 • Pressure at maximum delivery “...
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 RS 45/M 4“ 8“ 32“ Tab. D Fig. 1 Burner dimensions The maximum dimensions of the burners are given in (Fig.
Model MBtu/hr The firing rate area values have been obtained con- RS 45/M sidering an ambient temperature of 68 °F, and an Tab. F atmospheric pressure of 394” WC and with the WARNING combustion head adjusted as shown at page 14.
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Technical description of the burner CORRECTED BURNER CAPACITY ACCORDING TO ALTITUDE Altitude m a.s.l. 1220 1525 1830 2135 2440 Rated Capacity ft a.s.l 1000 2000 3000 4000 5000 6000 7000 8000 1000 1000 1023 1061 1101 1142 1186 1232 1282 1337 1500 1481...
Technical description of the burner Commercial boilers The burner is suitable for operation on either flame-inversion boil- ers or boilers with combustion chambers featuring flow from the base (three flue passes) on which the best results are obtained in 8” max terms of low NOx emissions.
Technical description of the burner 3.10 Burner description D11844 Fig. 6 Combustion head 27 “K3” relay Ignition pilot 28 “K min.” relay Screw for combustion head adjustment 29 “K max.” relay Sleeve 30 Optional holes Low air pressure switch 31 Fan motor with capacitor Air pressure test point 32 Ground terminals Gas pressure test point and head fixing screw...
Boiler plate Drill the combustion chamber mounting plate as shown in Fig. 7. The position of the threaded holes can be marked using the head gasket supplied with the burner. inch RS 45/M 32“ 16“ Tab. G D455 Fig. 7...
The range of lengths available, L (inch), is as follows: Model (short blast tube) (long blast tube) RS 45/M “ “ ➤ For boilers with front flue passes 6) or flame inversion cham- bers, protective insulation 4) must be inserted between the boiler refractory 5) and the blast tube 3).
Installation Combustion head adjustment Installation operations are now at the stage where the blast tube and sleeve are secured to the boiler as shown in Fig. 10. (R 1) The fan part of the burner shall be completely back- ward using the guides. WARNING It is now a very simple matter to set up the combustion head, as this depends solely on the output developed by the burner at maximum...
Installation Servomotor The servomotor (Fig. 13) provides simultaneous adjustment of the air damper, by means of the variable profile cam, and the gas but- terfly valve. The angle of rotation of the servomotor is equal to the angle on the graduated sector controlling the gas butterfly valve.
Installation 4.10 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 and laws.
Installation 4.10.3 Gas pressure ∆ ∆ ∆ ∆ p (“WC) MBtu/hr The Tab. H is used to calculate manifold pressure taking into ac- count combustion chamber pressure. 1.38 0.12 Gas manifold pressure measured at test point 1)(Fig. 16), with: 2.16 0.15 •...
Installation 4.11 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.
Installation 4.11.3 RM7840 ... sequence diagram S8160 Fig. 19 The installation of the device must be carried out by For further and specific information (setting and service work, etc.), qualified personnel, as indicated in this manual and please refer to the specific instruction of the control box. in compliance with the standards and regulations of WARNING the laws in force.
Installation 4.12 Thermal relay calibration Depending on the burner type, there are two different thermal re- 4.12.2 Electronic thermal relay lays: ➤ To reset, in the case of an intervention of the thermal relay, – Electro-mechanical termal relay (used for single phase motors) press the button “RESET”...
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.
Start-up, calibration and operation of the burner Burner firing Having completed the checks indicated in the previous heading, Having adjusted the pilot, reconnect the main valve and ignite the the pilot of the burner should fire. main flame; it might require several attempts to purge the air from the gas lines or to adjust the valve with little gas.
Start-up, calibration and operation of the burner 5.5.4 Intermediate outputs 5.5.6 Minimum gas pressure switch Adjust the minimum gas pressure switch (Fig. 29) after having per- Adjustment of gas delivery formed all the other burner adjustments with the pressure switch No adjustment of gas delivery is required.
Start-up, calibration and operation of the burner 5.6.3 Measuring flame signal with a volt ohmmeter 5.6.5 Inadequate flame signal Two test jacks, positive and negative (Com) are accessible on the If a satisfactory flame signal cannot be obtained while adjusting the top of the amplifier when plugged into the 7800 SERIES Relay sighting position of the detector, perform the procedures indicated Module.
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- ➮...
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.
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Maintenance Clean the outside of the burner, taking special care with the linkag- es joints and cam. Flame inspection window Clean the flame inspection window (Fig. 33). D484 Fig. 33 Combustion Adjust the burner if the combustion values found at the beginning of the operation do not comply with the regulations in force, or do not correspond to good combustion.
Maintenance Opening the burner Disconnect the electrical supply from the burner by 4" 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: ➤...
Maintenance Closing the burner To close the burner proceed sa follows: ➤ push the burner 13)(Fig. 34) at approximately 4” from the elec- trical board 14); ➤ insert the ignition electrode cables and then slide the burner up to the sleeve so that it is positioned as shown in (Fig. 35). ➤...
• Kit for lengthening the combustion head Burner Standard length Length obtainable with kit Code RS 45/M ” ” 20027083 • Gas train according to UL Standards The installer is responsible for the supply and installation of any required safety device(s) not indicated in this manual.
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...
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RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.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.ca Subject to modifications...