TWO STAGE GAS BURNERS

Transcription

1 TWO STAGE GAS BURERS RS SERIES RS 28 81/16 25 kw RS 8 /22 44 kw RS 5 116/29 58 kw RS 7 192/ kw RS 1 22/ kw RS 1 72/9 12 kw RS 19 47/ kw The RS series of burners covers a firing range from 81 to 229 kw, and they have been designed for use in hot or superheater water boilers, hot air or steam generators, diathermic oil boilers. Operation is "two stage"; the burners are fitted with an electronic device STATUS PAEL, which supplies complete diagnostic: hour meter, ignition meter, identification of trouble shooting. Optimisation of sound emissions is guaranteed by the use of fans with forward inclined blades and sound deadening material incorporated in the air suction circuit. The elevated performance of the fans and combustion head, guarantee flexibility of use and excellent working at all firing rates. The exclusive design ensures reduced dimensions, simple use and maintenance. A wide range of accessories guarantees elevated working flexibility. TS46UK

2 TECHICAL DATA Model RS 28 RS 8 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 Fuel / air data Electrical data Emissions Approval Burner operation mode Two stage Modulation ratio to max. output 2 1 Servomotor Type SQ9 LKS21 Run time s 12 Heat output kw Mcal/h 81/ /14 28 / /2 78 / / / / / /4 7 22/ /6 1 72/9 12 2/8 1 Working temperature C min./max. /4 et calorific value gas G2 kwh/mc 1 Density gas G2 kg/mc,71 Output gas G2 mc/h 8/16 2 /2 44 / ,6/ /46,5 81,4 2/ /9 1 et calorific value gas G25 kwh/mc 8,6 Density gas G25 kg/mc,78 Output gas G25 mc/h 9,4/ / / ,5/ / / / et calorific value LPG gas kwh/mc 25,8 Density LPG gas kg/mc 2,2 Output LPG gas mc/h /6,5 12,5 4/9 17 4/9 17 4,5/11 2 7,4/18 2 9/ ,4/6 59 Fan Type Centrifugal with reverse curve blades Air temperature Max. C 6 Electrical supply Ph/Hz/V 1/5/2~(±1%) /5/24~(±1%) /5/2~(±1%) Auxiliary electrical supply Ph/Hz/V 1/5/2 ~ (±1%) Control box Type MMI 81 Total electrical power kw Auxiliary electrical power kw,7,12,6,12,56,12,75,12 1,4, 1,8, 2,6,4 Protection level IP 44 Motor electrical power kw Rated motor current A,25 2,1,42 2,9,45 2 1,2,65 1,7 1,1 4,8 2,8 5,9,4 2,2 8,8 5,1 Motor start current A 4,8 11 9,5 5,5 1, ,6 27, ,2,2 Motor protection level IP 54 Ignition V1 V2 2V 1x8 kv transformer I1 I2 1A 2 ma Operation Intermittent (at least one stop every 24 h) Sound pressure Sound output dba W ,5 CO Emission mg/kwh < 4 Ox Emission mg/kwh < 1 Directive 9/96 89/6 7/2 92/42 EEC Conforming to E 676 Certification CE 85AP7 CE 85AP74 CE 85AP75 CE 85AP944 CE 85AP945 CE 85AP946 SQ1 47/ / / / /5 89 Straight blades 5,5 1 4,5,8 9, CE 85AT42 Reference conditions: Temperature: 2 C Pressure: 11.5 Altitude: 1 m a.s.l. oise measured at a distance of 1 meter. Since the Company is constantly engaged in the production improvement, the aesthetic and dimensional features, the technical data, the equipment and the accessories can be changed. This document contains confidential and proprietary information of RIELLO S.p.A. Unless authorised, this information shall not be divulged, nor duplicated in whole or in part.

3 FIRIG RATES RS 8 RS RS mm H 2 O 2 1 hpa () Mcal/h kw RS RS 7 RS 1 RS mm H 2 O 2 1 hpa () Mcal/h kw Useful working field for choosing the burner 1st stage operating range Test conditions conforming to E 676: Temperature: 2 C Pressure: 11.5 Altitude: 1 m a.s.l.

4 FUEL SUPPLY GAS TRAIS The burners are fitted with a butterfly valve to regulate the fuel delivery on 1st and 2nd stage, controlled by a variable profile cam servomotor. Fuel can be supplied either from the right or left hand sides. The gas train can be selected to best fit system requirements depending on the fuel output and pressure in the supply line. The gas train can be Multibloc type (containing the main components in a single unit) or Composed type (assembly of the single components). MULTIBLOC gas train without seal control Example of the variable profile cam on RS 711 burners. 12 P MULTIBLOC P2 6 5 P 2 1 L L1 MULTIBLOC gas train with seal control 12 P MULTIBLOC P2 6 5 P 2 1 L L P1 P2 P L L1 Gas input pipework Manual valve Antivibration joint Pressure gauge with pushbutton cock. Filter Pressure regulator (vertical) Minimum gas pressure switch VS safety solenoid (vertical) VR regulation solenoid (vertical) Two settings: firing output (rapid opening) maximum output (slow opening) Gasket and flange supplied with the burner Gas adjustment butterfly valve Burner Seal control mechanism for valves 89. According to standard E 676, the seal control is compulsory for burners with maximum output above 12 kw. burner adapter. Maximum gas pressure switch pressure Pressure downstream from the regulator Pressure upstream from the filter supplied separately, with the code given in the table Installer s responsibility COMPOSED gas train without seal control COMPOSED gas train with seal control P1 P P2 6 5 P P2 6 5 P 2 1 L L1 L L1

5 Y Y Øi Example of gas train COMPOSED type without seal control Øo X Z Example of gas train MULTIBLOC type without seal control Øo Øi Z X s are approved by standard E 676 together with the burner. The overall dimensions of the gas train depends on how they are constructed. The following table shows the maximum dimensions of the gas trains that can be fitted to RS burners, intake and outlet diameters and seal control if fitted. Please note that the seal control can be installed as an accessory, if not already installed on the gas train. The maximum gas pressure of gas train Multibloc type is, and that one of gas train Composed type is 5. MULTIBLOC GAS TRAIS COMPOSED GAS TRAIS ame MBD 47 MBD 41 MBD 412 MBD 412 CT MBD 4 MBD 4 CT MBD 42 MBD 42 CT CB 4/1 CB 5/1 CB 5/1 CT CBF 65/1 CBF 65/1 CT CBF 8/1 CBF 8/1 CT CBF 1/1 CBF 1/1 CT Ø i / /4 1 1/4 1 1/2 1 1/ /2 2 2 D 65 D 65 D 8 D 8 D 1 D 1 Ø o /4 /4 1 1/2 1 1/2 1 1/2 1 1/ /2 2 2 D 65 D 65 D 8 D 8 D 1 D 1 X mm Y mm Z mm

6 PRESSURE DROP DIAGRAMS The diagrams indicate the minimum pressure drop of the burners with the various gas trains that can be matched with them; at the value of these pressure drop add the combustion chamber pressure. The value thus calculated represents the minimum required input pressure to the gas train. ATURAL GAS LPG RS 28 RS 28 P G MBD 47 G25 P 55 5 LPG 45 4 and gas train MBD 41 MBD CT CB 4/1 MBD 4 4 CT and gas train MBD 47 MBD 41 MBD CT kcal/h X kcal/h X kw kw MBD 47 MBD 41 MBD 412 MBD 412 CT CB 4/1 MBD 4 MBD 4 CT RS 8 RS 8 P and gas train G MBD 41 MBD CT CB 4/1 MBD 4 4 CT MBD CT CB 5/1 5/1 CT G kcal/h X P and gas train LPG MBD 47 MBD 41 MBD CT MBD 4 4 CT CB 4/1 MBD CT CB 5/1 5/1 CT kcal/h X kw kw MBD 47 MBD 41 MBD 412 MBD 412 CT CB 4/1 MBD MBD 4 CT CB 5/1 CB 5/1 CT MBD 42 MBD 42 CT

7 ATURAL GAS LPG RS 5 RS 5 P and gas train G MBD 41 MBD CT CB 4/1 MBD 4 4 CT MBD CT CB 5/1 5/1 CT 5 kcal/h X 1 G P and gas train LPG MBD 47 MBD 41 MBD CT MBD 4 4 CT CB 4/1 MBD CT CB 5/1 5/1 CT 5 kcal/h X kw kw MBD 47 MBD 41 MBD 412 MBD 412 CT CB 4/1 MBD MBD 4 CT CB 5/1 CB 5/1 CT MBD 42 MBD 42 CT RS 7 RS 7 G2 G25 LPG P 5 P 5 and gas train CB 4/1 MBD 4 4 CT MBD CT CB 5/1 5/1 CT CBF 65/1 65/1 CT CBF 8/1 8/1 CT kcal/h X 1 and gas train MBD 4 4 CT CB 4/1 MBD CT CB 5/1 5/1 CT kcal/h X kw kw CB 4/1 MBD 4 MBD 4 CT CB 5/1 CB 5/1 CT MBD MBD 42 CT CBF 65/1 CBF 65/1 CT CBF 8/1 CBF 8/1 CT

8 ATURAL GAS RS 1 RS 1 P and gas train G CB 4/1 MBD 4 4 CT MBD CT CB 5/1 5/1 CT CBF 65/1 65/1 CT CBF 8/1 8/1 CT G kcal/h X P and gas train LPG LPG MBD 4 4 CT CB 4/1 MBD CT CB 5/1 5/1 CT kcal/h X kw kw CB 4/1 MBD 4 MBD 4 CT CB 5/1 CB 5/1 CT MBD MBD 42 CT CBF 65/1 CBF 65/1 CT CBF 8/1 CBF 8/1 CT RS 1 RS 1 P and gas train G CB 4/1 MBD 4 4 CT MBD CT CB 5/1 5/1 CT CBF 65/1 65/1 CT CBF 8/1 8/1 CT CBF 1/1 1/1 CT 12 1 kcal/h X kw 12 G P and gas train LPG MBD 4 4 CT CB 4/1 MBD CT CB 5/1 5/1 CT CBF 65/1 65/1 CT 12 1 kcal/h X kw 12 CB 4/1 MBD 4 MBD 4 CT CB 5/1 CB 5/1 CT MBD 42 MBD 42 CT CBF 65/1 CBF 65/1 CT CBF 8/1 CBF 8/1 CT CBF 1/1 CBF 1/1 CT

9 ATURAL GAS LPG RS 19 P and gas train G CF 5/1 5/1 CT MBD CT CBF 65/1 65/1 CT CBF 8/1 8/1 CT CBF 1/1 1/1 CT G kcal/h X RS 19 P and gas train LPG MBD CT CB 5/1 5/1 CT CBF 65/1 65/1 CT kcal/h X kw kw 229 CB 5/1 CB 5/1 CT MBD 42 MBD 42 CT CBF 65/ CBF 65/1 CT CBF 8/1 CBF 8/1 CT CBF 1/1 CBF 1/1 CT note Please contact the Riello Burner Technical Office for different pressure levels from those above indicated.

10 " SELECTIG THE FUEL SUPPLY LIES The following diagram enables pressure drop in a preexisting gas line to be calculated and to select the correct gas train. The diagram can also be used to select a new gas line when fuel output and pipe length are known. The pipe diameter is selected on the basis of the desired pressure drop. The diagram uses methane gas as reference; if another gas is used, conversion coefficient and a simple formula (on the diagram) transform the gas output to a methane equivalent (refer to figure A). Please note that the gas train dimensions must take into account the back pressure of the combustion chamber during operations. Control of the pressure drop in an existing gas line or selecting a new gas supply line. The methane output equivalent is determined by the formula fig. A on the diagram and the conversion coefficient. Once the equivalent output has been determined on the delivery scale ( V ), shown at the top of the diagram, move vertically downwards until you cross the line that represents the pipe diameter; at this point, move horizontally to the left until you meet the line that represents the pipe length. Once this point is established you can verify, by moving vertically downwards, the pipe pressure drop of on the botton scale below (). By subtracting this value from the pressure measured on the gas meter, the correct pressure value will be found for the choice of gas train. Example: gas used G25 gas output 9.51 mc/h pressure at the gas meter 2 gas line length m conversion coefficient.62 (see figure A) equivalent methane output V = 9.51 =.4 mc/h.62 once the value of.4 has been identified on the output scale ( V ), moving vertically downwards you cross the line that represents 1" 1/4 (the chosen diameter for the piping); from this point, move horizontally to the left until you meet the line that represents the length of m of the piping; move vertically downwards to determine a value of 1.4 in the pressure drop botton scale; subtract the determined pressure drop from the meter pressure, the correct pressure level will be found for the choice of gas train; correct pressure = ( 21.4 ) = V , " PIPE LEGTH (m) 4" 2" 1/2 2" V = Gas output mc/h f 1" 1" 1/4 1" 1/2 /4 f 1 G2 =,62 G25 {1,18 G1 1/2 Figure A 1,4,1,2,,4,5,6,7, PRESSURE DROP () PIPE DIAMETER

11 VETILATIO The ventilation circuit produces low noise levels with high performance pressure and air output, inspite of the compact dimensions. Except for the RS 19 model, the use of reverse curve blades and soundproofing material keeps noise level very low. In the RS 19 model, noise has been reduced by the special design of the air suction circuit. Example of the air damper on RS burners A variable profile cam connects the fuel and air regulations, to obtain a perfect control of combustion during the change of stage. When the burner is not operating the servomotor closes completely the air damper to reduce heat dispersion from the boiler. A minimum air pressure switch stops the burner when there is an insufficient quantity of air at the combustion head. COMBUSTIO HEAD Different lengths of the combustion head can be chosen for the RS series of burners. The choice depends on the thickness of the front panel and the type of boiler. Depending on the type of generator, check that the penetration of the head into the combustion chamber is correct. The internal positioning of the combustion head can easily be adjusted to the maximum defined output by adjusting a screw fixed to the flange. Example of a RS burner combustion head Dimensions of the flame 4 Lenght of the flame (m) 2 1 L max L min D max D min Burner output (MW) 2 1,5 Diameter of the flame (m) D L Example: Burner thermal output = 2 kw; L flame (m) = 2,7 m (medium value); D flame (m) =,8 m (medium value)

12 ADJUSTMET BURER OPERATIO MODE On two stage operation, the burner gradually adapts the output to the requested level, by varying between two preset levels (see figure A). Two stage operation Output Controlled variable Figure A C bar MAX MI Time Time Example of STATUS PAEL The RS burners are equipped of an exclusive electronic device STATUS PAEL or LED PAEL that, in every moments, shows all burners operational modes and finds eventual anomalies during the operational cycle. FIRIG RS VS VR M TL TR M (1) 21 (2) 24 () (1) 58 (2)() 59 (1) RS 2885 (2) RS 711 () RS time (s) The TL remote control closes; servomotor starts after about. " The control box starting cycle begins. 9 Fan motor starts. The air damper is positioned to 2nd stage. 18/21/24 Preventilation stage. 46" Servomotor rotates. 55" The air damper and the gas butterfly valve are positioned to 1st stage output (for RS 2885). 56 Ignition electrode sparks. 58" The air damper and the gas butterfly valve are positioned to 1st stage output (for RS 71119). 59" Firing; the VS safety valve and the VR adjustment valve open. 65 Output can be increased. 8" The control box starting cycle ends.

13 ELECTRICAL COECTIOS To be made by the installer Electrical connections must be made by qualified and skilled personnel, according to the local regulations. Example of the terminal board for electrical connections for the RS models TWO STAGE OPERATIO Singlephase power supply RS 288 without seal control RS 288 with seal control X6 2 1 Ph X4 T8 T7 T6 B5 B4 S T2 T1 L1 X7 X6 2 1 Ph X4 T8 T7 T6 B5 B4 S T2 T1 L1 X7 P P V TR h2 h1 S I TL T6A TS T6 T8 VR V VS TR h2 h1 S I TL T6A TS PG VR VS P h1 Hour meter h2 Hour meter I Manual switch MB Burner auxiliary terminal board X4 4 pin plug X6 6 pin plug X7 7 pin plug PG Minimum gas pressure switch S External lockout signal TR High/low flame setting thermostat TL Threshold thermostat TS Safety thermostat VR Adjustment valve VS Safety valve T6A 6A fuse mm 2 PE L ~ 5Hz 2V S1 T8 T7 T6 VPS B5 L1 PG P mm 2 XP PE L h1 h2 Hour meter Hour meter ~ 5Hz 2V I Manual switch XP Seal control plug X4 4 pin plug X6 6 pin plug X7 7 pin plug PG Minimum gas pressure switch S External lockout signal S1 External lockout signal on the seal control TR High/low flame setting thermostat TL Threshold thermostat TS Safety thermostat VPS Seal control VR Adjustment valve VS Safety valve T6A 6A fuse TWO STAGE OPERATIO Triplephase power supply RS 85 without seal control RS 85 with seal control X6 2 1 Ph L L2 L1 X5 X4 T8 T7 T6 B5 B4 S T2 T1 L1 X7 X6 2 1 Ph L X5 L2 L1 T8 T7 T6 X4 B5 B4 S T2 T1 L1 X7 T6 T8 V P P V I I h2 S T6A VR VS h2 S T6A TR h1 h1 TR TS TS TL TL PG VR VS P PG T6A P T6A S1 mm 2 XP mm 2 mm 2 T8 T7 T6 B5 L1 mm 2 PE L PE L L PE L2 L1 L PE L2 L1 ~ ~ 5Hz 2V 5Hz 2V M VPS ~ 5Hz 4/2V M ~ 5Hz 2V 5Hz 2V h1 Hour meter h2 Hour meter h1 Hour meter I Manual switch h2 Hour meter XP Seal control plug I Manual switch X4 4 pin plug MB Burner auxiliary terminal board X5 5 pin plug X4 4 pin plug X6 6 pin plug X5 5 pin plug X7 7 pin plug X6 6 pin plug PG Minimum gas pressure switch X7 7 pin plug S External lockout signal PG Minimum gas pressure switch S1 External lockout signal on the seal control S External lockout signal TR High/low flame setting thermostat TR High/low flame setting thermostat TL Threshold thermostat TL Threshold thermostat TS Safety thermostat TS Safety thermostat VPS Seal control VR Adjustment valve VR Adjustment valve VS Safety valve VS Safety valve T6A 6A fuse T6A 6A fuse

14 RS without seal control RS with seal control MB L1 L2 L L 1 2 T6A TS S TL V P P V TR MB L1 L2 L L 1 2 T6A TS S T8 T6 TL 7 8 V V TR F L L PE L1 L2 L ~ 5Hz 2V ~ 5Hz 4/2V M 5Hz 2V ~ MB Burner terminal board I Manual switch PG Minimum gas pressure switch S External lockout signal TR High/low flame setting thermostat TL Threshold thermostat TS Safety thermostat VR Adjustment valve VS Safety valve T6A 6A fuse F Fuse (see table A) L Lead section (see table A) I PG P VS VR PE L1 L2 L L 5Hz 2V MB Burner terminal board I Manual switch XP Seal control plug PG Minimum gas pressure switch S External lockout signal S1 External lockout signal on the seal control TR High/low flame setting thermostat TL Threshold thermostat TS Safety thermostat VPS Seal control VR Adjustment valve VS Safety valve T6A 6A fuse F Fuse (see table A) L Lead section (see table A) The following table shows the supply lead sections and the type of fuse to be used. F L ~ ~ 5Hz 4/2V ~ 5Hz 2V I M ~ VS VR T8 VPS T7 S1 T6 B5 PG P XP L1 Model RS 28 RS 8 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 F L Table A A mm 2 2V T6 2V T6 2V T6 4V T6 2V T6 4V T6 2V T1 4V T6 2V T16 4V T1 2V T16 4V T1 2V T25 2,5 4V T2 2,5 EMISSIOS mg/kwh O2 EMISSIOS mg/kwh CO EMISSIOS 25 1 RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 1 OISE EMISSIOS db(a) RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 The emission data has been measured in the various models at maximum output, according to E 676 standard.

15 OVERALL DIMESIOS (mm) BURERS RS RS A E F G G (1) B A C E F G G (1) H H D M L I D M L I O O (1) P O O (1) RS 19 B A C E F G G (1) O O (1) H D M L I Model A B C D RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS (1) Extended head model E F G G (1) H I L M O O (1) /2 1 1/2 1 1/ D P BURER BOILER MOUTIG FLAGE D1 D2 Ø Model RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 D D Ø M8 M8 M8 M12 M12 M12 M16 PACKAGIG Z X X (1) Y Model X X (1) Y Z kg RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS (1) Extended head model

16 ISTALLATIO DESCRIPTIO Installation, start up and maintenance must be carried out by qualified and skilled personnel. All operations must be performed in accordance with the technical handbook supplied with the burner. BURER SETTIG All the burners have slide bars, for easier installation and maintenance. After drilling the boilerplate, using the supplied gasket as a template, dismantle the blast tube from the burner and fix it to the boiler. Adjust the combustion head. Fit the gas train, choosing this on the basis of the maximum output of the boiler and considering the enclosed diagrams. Refit the burner casing to the slide bars. Close the burner, sliding it up to the flange. ELECTRICAL COECTIOS AD START UP Make the electrical connections to the boiler following the wiring diagrams included in the instruction handbook. Turn the motor to check rotation direction (if it is a threephase motor). Perform a first ignition calibration on the gas train. On start up, check: Gas pressure at the combustion head (to max. and min. output) Combustion quality, in terms of unburned substances and excess air.

17 ACCESSORIES Extended heads Standard head burners can be transformed into extended head versions, by using the special kit. The KITS available for the various burners, giving the original and the extended lengths, are listed below. Burner RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 extension kits Standard head length (mm) Extended head length (mm) Kit code Spacer kit If burner head penetration into the combustion chamber needs reducing, varying thickness spacers are available, as given in the following table: Head length reduction kit S Burner RS RS RS 19 Spacer thickness S (mm) Kit code Continuous ventilation kit If the burner requires continuous ventilation in the stages without flame, a special kit is available as given in the following table: Burner RS RS Continuous ventilation kit Kit code Sound proofing box If noise emission needs reducing even further, soundproofing boxes are available, as given in the following table: Burner RS RS Sound proofing box Box type C2 C Box code

18 LPG kit For burning LPG gas, a special kit is available to be fitted to the combustion head on the burner, as given in the following table: Burner RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 LPG kit Kit code for standard head Kit code for extended head

19 GAS TRAI ACCESSORIES s When the diameter of the gas train is different from the set diameter of the burners, an adapter must be fitted between the gas train and the burner. The following table lists the adapters for various burners. s Burner Dimensions code RS 28 MBD /4" 1" 1/2 824 RS 8 MBD MBD 42 CB 5/1 /4" 1" 1/2 2" 1" 1/ RS 5 MBD MBD 42 CB 5/1 /4" 1" 1/2 2" 1" 1/ MBD 4 CB 4/1 1" 1/2 2" 84 RS 7 CBF 65/1 D 65 2"1/2 1" 1/ " CBF 8/1 MBD 4 CB 4/1 D 8 2"1/2 2" 1" 1/2 2" RS 1 CBF 65/1 D 65 2"1/2 1" 1/ " CBF 8/1 D 8 2"1/2 2" 826 MBD 4 CB 4/1 1" 1/2 2" 84 CBF 65/1 D 65 2"1/2 1" 1/2 825 RS 1 CBF 8/1 2" D 8 2"1/2 2" 826 CBF 1/1 D 1 D 8 D 8 2"1/2 2" MBD 42 CB 5/1 D 8 D 65 2"1/2 2" 1128 RS 19 CBF 65/1 CBF 8/1 D 65 D 8 D 8 D CBF 1/1 D 1 D

20 Seal control kit To test the valve seals on the gas train, a special seal control kit is available. The valve seal control device is compulsory (E 676) on gas trains to burners with a maximum output over 12 kw. The sealing control is type VPS 54. Burner RS 28 RS 8 RS 5 RS 7 RS 1 RS 1 RS 19 Seal control kit MBD CB 4/1 MBD CB 4/1 5/1 MBD CB 4/1 5/1 MBD 4 42 CB 4/1 5/1 CBF 65/1 8/1 MBD 4 42 CB 4/1 5/1 CBF 65/1 8/1 MBD 4 42 CB 4/1 5/1 CBF 65/1 8/1 1/1 MBD 42 CB 5/1 CBF 65/1 8/1 1/1 Kit code Stabiliser spring springs are available to vary the pressure range of the gas train stabilisers. The following table shows these accessories with their application range Stabiliser springs CBF 65/1 CBF 8/1 CBF 1/1 CBF 65/1 CBF 8/1 CBF 1/1 CBF 65/1 CBF 8/1 CBF 1/1 Spring Red da 25 a 55 Red da 25 a 55 Black da 6 a 11 Black da 6 a 11 Pink da 9 a Pink da 9 a Please refer to the technical manual for the correct choice of spring.

21 SPECIFICATIO A specific index guides your choice of burner from the various models available in the RS series. Below is a clear and detailed specification description of the product. DESIGATIO OF SERIES R BURERS Series : R Fuel : S atural Gas L Light oil LS Light oil/methane Heavy oil Size R S 1 TC FS1 /24/5 2/56 BASIC DESIGATIO Setting : /1 Single stage... Two stage /M Modulating Emission :... Class 1 E267 E676 MZ Class 2 E267 E676 BLU Class E267 E676 MX Class 1 E267 Class E676 Head : TC Standard head TL Extended head EXTEDED DESIGATIO Diagnostic : LP Led panel ST Status panel Flame control system: FS1 Standard (1 stop every 24 h) FS2 Continuous working (1 stop every 72 h) Electrical supply to the system : 1/2/5 1/2V/5Hz /2/5 /2V/5Hz /4/5 /4V/5Hz /24/5 /2V/5Hz /4V/5Hz /22/6 /22V/6Hz /8/6 /8V/6Hz /228/6 /22/6Hz /8V/6Hz Auxiliary voltage : 2/56 2V/56Hz 11/56 11V/56Hz ID: Differential switch

22 LIST OF AVAILABLE MODELS RS 28 TC LP FS1 1/2/5 2/56 RS 28 TC LP FS1 1/2/5 2/56 ID RS 28 TC ST FS1 1/2/5 2/56 RS 28 TC ST FS1 1/2/5 2/56 ID RS 28 TL LP FS1 1/2/5 2/56 RS 28 TL LP FS1 1/2/5 2/56 ID RS 28 TL ST FS1 1/2/5 2/56 RS 28 TL ST FS1 1/2/5 2/56 ID RS 8 TC LP FS1 1/2/5 2/56 RS 8 TC LP FS1 1/2/5 2/56 ID RS 8 TC LP FS1 /24/5 2/56 RS 8 TC LP FS1 /24/5 2/56 ID RS 8 TC ST FS1 1/2/5 2/56 RS 8 TC ST FS1 1/2/5 2/56 ID RS 8 TC ST FS1 /24/5 2/56 RS 8 TC ST FS1 /24/5 2/56 ID RS 8 TL LP FS1 1/2/5 2/56 RS 8 TL LP FS1 1/2/5 2/56 ID RS 8 TL LP FS1 /24/5 2/56 RS 8 TL LP FS1 /24/5 2/56 ID RS 8 TL ST FS1 1/2/5 2/56 RS 8 TL ST FS1 1/2/5 2/56 ID RS 8 TL ST FS1 /24/5 2/56 RS 8 TL ST FS1 /24/5 2/56 ID RS 5 TC LP FS1 /24/5 2/56 RS 5 TC LP FS1 /24/5 2/56 ID RS 5 TC ST FS1 /24/5 2/56 RS 5 TC ST FS1 /24/5 2/56 ID RS 5 TL LP FS1 /24/5 2/56 RS 5 TL LP FS1 /24/5 2/56 ID RS 5 TL ST FS1 /24/5 2/56 RS 5 TL ST FS1 /24/5 2/56 ID RS 7 TC LP FS1 /24/5 2/56 RS 7 TC LP FS1 /24/5 2/56 ID RS 7 TC ST FS1 /24/5 2/56 RS 7 TC ST FS1 /24/5 2/56 ID RS 7 TL LP FS1 /24/5 2/56 RS 7 TL LP FS1 /24/5 2/56 ID RS 7 TL ST FS1 /24/5 2/56 RS 7 TL ST FS1 /24/5 2/56 ID RS 1 TC LP FS1 /24/5 2/56 RS 1 TC LP FS1 /24/5 2/56 ID RS 1 TC ST FS1 /24/5 2/56 RS 1 TC ST FS1 /24/5 2/56 ID RS 1 TL LP FS1 /24/5 2/56 RS 1 TL LP FS1 /24/5 2/56 ID RS 1 TL ST FS1 /24/5 2/56 RS 1 TL ST FS1 /24/5 2/56 ID RS 1 TC LP FS1 /24/5 2/56 RS 1 TC LP FS1 /24/5 2/56 ID RS 1 TC ST FS1 /24/5 2/56 RS 1 TC ST FS1 /24/5 2/56 ID RS 1 TL LP FS1 /24/5 2/56 RS 1 TL LP FS1 /24/5 2/56 ID RS 1 TL ST FS1 /24/5 2/56 RS 1 TL ST FS1 /24/5 2/56 ID RS 19 TC ST FS1 /24/5 2/56 RS 19 TC ST FS1 /24/5 2/56 ID Other versions are available on request

23 PRODUCT SPECIFICATIO Burner: Monoblock forced draught gas burner with two stage operation, fully automatic, made up of: Air suction circuit lined with soundproofing material Fan with reverse curve blades (straight blades on the 19 model) high performance with low sound emissions Air damper for air flow setting and butterfly valve for regulating fuel output on 1st and 2nd stage controlled by a servomotor with variable cam Starting motor at 28 rpm, threephase 4V with neutral, 5Hz (available also singlephase, 2V, 5Hz for the RS 28 and 8 models), that can be set on the basis of required output, fitted with: stainless steel end cone, resistant to corrosion and high temperatures ignition electrodes ionisation probe gas distributor flame stability disk Minimum air pressure switch stops the burner in case of insufficient air quantity at the combustion head Flame control panel, with lockout pilot light and lockout reset button Electronic control device: STATUS PAEL or LED PAEL Burner on/off selection switch 1st 2nd stage manual switch Flame inspection window Slide bars for easier installation and maintenance Protection filter against radio interference IP 44 electric protection level. Fuel supply line, in the MULTIBLOC configuration (from a diameter of /4 until a diameter 2 ) or COMPOSED configuration (from a diameter of D 65 until a diameter of D 1), fitted with: Filter Stabiliser Minimum gas pressure switch Safety valve Valve seal control (for output > 12 kw) One stage working valve with ignition gas output regulator. Conforming to: 89/6/EEC directive (electromagnetic compatibility) 7/2/EEC directive (low voltage) 92/42/EEC directive (performance) 9/96/EEC directive (gas) E 676 (gas burners). Standard equipment: 1 gas train gasket 1 flange gasket 4 screws for fixing the flange 1 thermal screen 4 screws for fixing the burner flange to the boiler Wiring loom fittings for the electrical connection (RS ) 2 slide bar extensions (for extended head models and RS 19 model) Instruction handbook for installation, use and maintenance Spare parts catalogue. Available accessories to be ordered separately: Head extension kit Head length reduction kit Continuous ventilation kit Soundproofing box LPG kit adapter Seal control kit Stabiliser spring.

24 Lineagrafica ISO 91 Cert. n. 61 RIELLO S.p.A. Via degli Alpini, LEGAGO (VR) Italy Tel Fax Internet: rburners@rielloburners.com Since the Company is constantly engaged in the production improvement, the aesthetic and dimensional features, the technical data, the equipment and the accessories can be changed. This document contains confidential and proprietary information of RIELLO S.p.A. Unless authorised, this information shall not be divulged, nor duplicated in whole or in part.