CIB UNIGAS LX60 Manual Of Installation - Use - Maintenance
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CIB UNIGAS LX60 Manual Of Installation - Use - Maintenance

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LX60
LX65
LX72
Gas burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
M03988CE Rev. 4.3 05/2020

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  • Page 1 LX60 LX65 LX72 Gas burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M03988CE Rev. 4.3 05/2020...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS WARNINGS ................................3 PART I: INSTALLATION ............................6 BURNERS SPECIFICATIONS ............................... 6 Specifications ....................................6 Country and usefulness gas categories ............................7 Matching the burner to the boiler ..............................7 Overall dimensions (mm) ................................9 Performance curves ..................................12 MOUNTINGS AND CONNECTIONS ............................
  • Page 3 DANGERS, WARNINGS AND NOTES OF CAUTION THIS MANUAL IS SUPPLIED AS AN INTEGRAL AND ESSENTIAL PART OF THE PRODUCT AND MUST BE DELIVERED TO THE USER. INFORMATION INCLUDED IN THIS SECTION ARE DEDICATED BOTH TO THE USER AND TO PERSONNEL FOLLOWING PRODUCT INSTALLATION AND MAINTENANCE.
  • Page 4 3b) FIRING WITH GAS, LIGHT OIL OR OTHER FUELS DIRECTIVES AND STANDARDS Gas burners GENERAL European directives  The burner shall be installed by qualified personnel and in compliance -Regulation 2016/426/UE (appliances burning gaseous fuels) with regulations and provisions in force; wrong installation can cause -2014/35/UE (Low Tension Directive) injuries to people and animals, or damage to property, for which the -2014/30/UE (Electromagnetic compatibility Directive)

  • Page 5: Warnings

    Burner data plate Type Gas - Light oil burners For the following information, please refer to Model Year European Directives the data plate: S.Number -Regulation 2016/426/UE (appliances burning gaseous fuels) burner type and burner model: must be Output  Oil Flow -2014/35/UE (Low Tension Directive) reported in any communication with the Fuel...

  • Page 6: Part I: Installation

    Burners are identified by burner type and model. Burner model identification is described as follows. Type LX72 Model (1) BURNER TYPE LX60 - LX65 - LX72 (2) FUEL M - Natural gas AB - Double stage (3) OPERATION PR - Progressive...

  • Page 7: Country And Usefulness Gas Categories

    CIB UNIGAS - M03988CE BURNERS LX65 M-...0.50 LX65 M-...0.65 245 - 760 Output min. - max kW Natural gas Fuel Gas category (see next paragraph) 26 - 80 Gas rate min.- max Stm Gas pressure min. - max. mbar (see Note 2)

  • Page 8: Matching The Burner To The Boiler

    CIB UNIGAS - M03988CE Matching the burner to the boiler The burners described in this manual have been tested with combustion chambers that comply with EN676 regulation and whose dimensions are described in the diagram . In case the burner must be coupled with boilers with a combustion chamber smaller in dia- meter or shorter than those described in the diagram, please contact the supplier, to verify that a correct matching is possible, with respect of the application involved.

  • Page 9: Overall Dimensions (Mm)

    LX60 Boiler’s drilling plate and burner’s flange A(S*) A(L*) B(S*) B(L*) LX60 PR - 0.40 1026 1206 314 736 298 812 500 312 185 204 210 240 344 190 439 112 327 444 464 162 120 LX60 MD - 0.40...
  • Page 10 LX65 - LX72 O min. O max. Boiler’s drilling plate and burner’s flange A(S*) A(L*) AA B(S*) B(L*) BB Omin Omax LX65 PR - 0.50 1166 1256 373 803 316 900 568 332 185 228 208 300 376 233 465 130 335 519 531 162 155 LX65 PR - 1.50 1166...
  • Page 11 DN A(S*) A(L*) AA B(S*) B(L*) Omin Omax LX72 PR - 0.50 1139 1224 130 373 803 316 332 219 249 208 300 376 M10 330 233 465 130 335 519 531 198 155 LX72 PR - 1.50 1139 1224 130 373 803 316 1026 332 219 249 208 300 376 M10 330 233 465 130 335 519...

  • Page 12: Performance Curves

    CIB UNIGAS - M03988CE Performance curves LX60 M-...40/50/65.. LX65 LX72 1000 1200 To get the input in kcal/h, multiply value in kW by 860. Data are referred to standard conditions: atmospheric pressure at 1013mbar, ambient temperature at 15°C. Pressure in the network/gas rate curves LX60 M-...40..

  • Page 13: Mountings And Connections

    Packing Burners are despatched in cardboard packages whose dimensions are: LX60: 1200mm x 670mm x 540mm (L x P x H). LX65 - LX72: 1280mm x 850mm x 760mm (L x P x H). Packing cases of this type are affected by humidity; the maximum number of cases to be stacked is shown outside the packing.The fol- lowing are placed in each packing case.

  • Page 14: Gas Train Connections

    CIB UNIGAS - M03988CE GAS TRAIN CONNECTIONS The next figures show the gas train components wich are included in the delivery and those wich must be fitted by the customer. The diagram complies with regulations in force ATTENTION: BEFORE EXECUTING THE CONNECTIONS TO THE GAS PIPE NETWORK, BE SURE THAT THE MANUAL CUTOFF VALVES ARE CLOSED.

  • Page 15: Assembling The Gas Grain

    CIB UNIGAS - M03988CE Assembling the gas grain gas supply network ”direction” arrows for installation Keys 1A..1E Gasket Gas filter Gas valves group Bellow joint Manual valve Fig. 2 - Example of gas train To mount the gas train, proceed as follows: 1-a)in case of threaded joints: use proper seals according to the gas used;...

  • Page 16: Siemens Vgd20

    CIB UNIGAS - M03988CE MULTIBLOC DUNGS MBC300-700-1200SE (Threaded valves group) Mounting 1. Mount flange onto tube lines. Use appropriate sealing agent (see Fig. 7) 2. Insert MBC...SE. Note position of O rings (see Fig. 8). 3. Tighten screws A – H Fig.

  • Page 17: Pressure Adjusting Range

    CIB UNIGAS - M03988CE WARNING: removing the four screws BS causes the device to be unserviceable! SIEMENS VGD..MOUNTING POSITIONS SKP1. SKP2. 7631z05/0101 Fig. 13 Fig. 11 Fig. 12 Fig. 10 Fig. 14 Pressure adjusting range The pressure adjusting range, downstream the gas valves group, changes according to the spring provided with the valve group.

  • Page 18: Gas Proving System Vps504

    CIB UNIGAS - M03988CE 4 - 20 20 - 40 40 - 80 80 - 150 Performance range (mbar) black green Spring colour Siemens VGD valves with SKP actuator : 0 - 22 15 - 120 100 - 250 Performance range (mbar)

  • Page 19: Electrical Connections

    CIB UNIGAS - M03988CE ELECTRICAL CONNECTIONS WARNING: The burner is provided with a jumper between terminals 6 and 7; in the event of connecting the high/ low flame thermostat remove this jumper before connecting the thermostat. IMPORTANT: while connecting electric supply wires to burner’s teminal block be sure that ground wire should be longer than phase and neutral ones.

  • Page 20: Connection Diagram

    CIB UNIGAS - M03988CE Connection diagram Burner’s auxiliary power supp Thermocouple Pressure probeCur- rent signal Fig. 18 Voltage signal Pressure probe Fig. 20 - Power supply terminal block Fig. 19 - Probes connection scheme for modulating burners Terminal block for connections on printed circuit Fig.

  • Page 21: Adjustments

    CIB UNIGAS - M03988CE ADJUSTMENTS Combustion head pressure curves vs. the gas flow rate Curves are referred to pressure= 0mbar in the combustion head! The curves referred to the gas pressure in the combustion head, depending on the gas flow rate, are referred to the burner in the com- bustion stage (percentage of residual O in the flues as shown in the “Recommended combustion values”...

  • Page 22: Gas Pressure In Combustion Head Vs. Gas Flow Rate Curves

    CIB UNIGAS - M03988CE Gas pressure in combustion head vs. gas flow rate curves LX60 LX65 LX72 110 120...

  • Page 23: Adjusting Air And Gas Flow Rates

    CIB UNIGAS - M03988CE Adjusting air and gas flow rates ATTENTION: before starting the burner up, be sure that the manual cutoff valves are open and check that the pres- sure upstream the gas train complies the value quoted on paragraph “Technical specifications”. Be sure that the mains switch is closed.

  • Page 24: Adjusting Procedure

    CIB UNIGAS - M03988CE Adjusting procedure To change the burner setting during the testing in the plant, follows the next procedure, according to the burner operation.. DUNGS MB-DLE gas valves group: Before starting the burner up, adjust the valves group slow opening: to set the slow opening remove cover T, reverse it upside down and use it as a toolto rotate screw VR.
  • Page 25 CIB UNIGAS - M03988CE the screw VS located under the cover C. By screwing down the pressure is increased and by unscrewing it is reduced. Note: the screw VSB must be removed only in case of replacemente of the coil.
  • Page 26 CIB UNIGAS - M03988CE Double-stage burners 10 drive the burner to the low flame stage by means of the TAB thermostat; 11 In order to change the gas flow rate slacken the nuts DB (Fig. 26) and adjust the opening angle of the gas butterfly valve by rotating the rod TG (clockwise rotation increases gas flow, anticlockwise rotation decreases it).

  • Page 27: Progressive Burners

    CIB UNIGAS - M03988CE Progressive burners Once the procedure till step 8 described on paragraph “Adjusting procedure” on page 24 is accomplished, go on as follows: set the TAB thermostat to the minimum in order that the actuator moves progressively towards the low flame position;...

  • Page 28: Fully Modulating Burners

    CIB UNIGAS - M03988CE Turn the burner off and then start it up again. If the adjustment is not correct, repeat the previous steps. Fully modulating burners Once the procedure till step 8 described on paragraph “Adjusting procedure” on page 24 is accomplished, go on as follows: To adjust the air rate in low flame and in the intermediate points, proceed as follow.

  • Page 29: Part Ii: Operation

    CIB UNIGAS - M03988CE PART II: OPERATION LIMITATIONS OF USE THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY CONNEC- TED TO A HEAT GENERATOR (E.G. BOILER, HOT AIR GENERATOR, FURNACE, ETC.), ANY OTHER USE IS TO BE CONSIDE- RED IMPROPER AND THEREFORE DANGEROUS.

  • Page 30: Operation

    CIB UNIGAS - M03988CE OPERATION ATTENTION: BEFORE STARTING THE BURNER UP, BE SURE THAT THE MANUAL CUTOFF VALVES ARE OPEN AND CHECK THAT THE PRESSURE VALUE UPSTREAM THE GAS TRAIN MATCHES THE VALUE ON PARAGRAPH “TECHNICAL SPECIFICATIONS”). CHECK THAT THE MAINS SWITCH IS CLOSED. CAREF Turn to the “ON”...
  • Page 31 CIB UNIGAS - M03988CE Fig. 29 - Control panel Keys Main switch on-off Lockout indicator light Reset pushbutton for flame control box Gas pressure switch consent indicator light Gas proving system lockout indicator light (only on burners with leakage control device)

  • Page 32: Part Iii: Maintenance

    CIB UNIGAS - M03988CE PART III: MAINTENANCE At least once a year carry out the maintenance operations listed below. In the case of seasonal servicing, it is recommended to carry out the maintenance at the end of each heating season; in the case of continuous operation the maintenance is carried out every 6 months.

  • Page 33: Inspection And Replacement Of The Multibloc Dungs Mbc

    CIB UNIGAS - M03988CE Fig. 32 Inspection and replacement of the MULTIBLOC DUNGS MBC..SE filter (Threaded valves group) Inspect the filter at least once a year. Change the filter, if pressure value between pressure connections 1 and 2 is grea- ther than 10 mbar.

  • Page 34: Adjusting The Electrodes

    Removing the combustion head Type LX60 Remove cover C. Unscrew the two screws S holding in position the washer and then unscrew VRT to free the threaded rod AR. Unscrew the screws V holding in position the Fig. 24 manifold G and pull out the complete group as shown in figure.

  • Page 35: Replacing The Electrodes

    CIB UNIGAS - M03988CE Replacing the electrodes ATTENTION: avoid the ignition and detection electrodes to contact metallic parts (blast tube, head, etc.), otherwise the boi- ler’s operation would be compromised. Check the electrodes position after any intervention on the combustion head.

  • Page 36: Troubleshooting

    CIB UNIGAS - M03988CE disconnect the power mains close the fuel cock of the supply line Burner disposal In case of disposal, follow the instructions according to the laws in force in your country about the “Disposal of materials”. TROUBLESHOOTING...

  • Page 37: Burner Exploded View

    BURNER EXPLODED VIEW LX60 ITEM DESCRIPTION ITEM DESCRIPTION COMBUSTION HEAD 12.1.5 BRACKET DETECTION ELECTRODE 12.2.1 SCREW IGNITION ELECTRODE 12.2.2 SCREW BLAST TUBE 12.2.3 “O“ RING 12.2.4 LEVERAGE BUTTERFLY GAS VALVE 12.2.5 GAS MANIFOLD 12.2.6 JOINT FAN WHEEL 12.2.7 JOINT MOTOR 12.3...
  • Page 39 LX65 - LX72 ITEM DESCRIPTION ITEM DESCRIPTION BLAST TUBE 14.1.5 BRACKET FAN WHEEL 14.2.1 MOTOR 14.2.2 SCREW GAS FILTER 14.2.3 ADJSUTING CAM FLANGE 14.2.4 CONNECTING ROD GASKET 14.2.5 GASKET 14.2.6 JOINT FLANGED PIPE 14.2.7 JOINT 3.6.1 PRESSURE SWITCH 14.3 AIR DAMPER 3.6.2 GAS VALVE 14.4...
  • Page 41 CIB UNIGAS - M03988CE...

  • Page 42: Wiring Diagrams

    CIB UNIGAS - M03988CE WIRING DIAGRAMS ATTENTION: 1 - Power supply: 400V 50Hz 3N a.c.three-phase and 230V 50Hz 1N a.c. monophase 2 - Don’t reverse phase and neutral 3 - Ensure the burner is properly earthed...

  • Page 47: Appendix

    APPENDIX SIEMENS LME11/21/22 CONTROL BOX The series of equipment LME.. is used for the starup and supervisione of 1- or 2- stage gas burners. The series LME.. is interchangeable with the series LGB.. and LMG.., all diagrams and accessories are interchangea- START-UP PROGRAM ble.
  • Page 48 LME11 control sequence LME21 control sequence B´ B´ SB / R SB / R W / GP W / GP (LR) BV2 7101d05/0206 Control sequence Waiting time LME22 control sequence Purge time B´ TSA Ignition safety time SB / R Preignition time W / GP Postignition time...
  • Page 49 LME11 connection diagram Connection diagram Error message (alarm) Fuel valve PC control EK2 Remote lockout reset button RESET Flame signal Gas pressure switch Air pressure switch Load controller K2/1 K2/2 Fan motor Control thermostat/pressurestat Safety limit thermostat R / W Limit thermostat /pressure switch Ignition transformer 7101 24 /0606...
  • Page 50 CONTROL PROGRAM IN THE EVENT OF FAULT CONTROL BOX LOCKED If a fault occurs, all outputs will immediately be deactivated (in less In the event of lockout, the LME.. remains locked and the red signal lamp than 1s). (LED) will light up.The burner control can immediately be reset. This state After an interruption of power, a restart will be made with the full pro- is also mantained in the case fo mains failure.
  • Page 52 C.I.B. UNIGAS S.p.A. Via L.Galvani, 9 - 35011 Campodarsego (PD) - ITALY Tel. +39 049 9200944 - Fax +39 049 9200945/9201269 web site: www.cibunigas.it - e-mail: cibunigas@cibunigas.it Note: Specifications and data subject to change. Errors and omissions excepted.
  • Page 53 CIB UNIGAS 600V CONTROLLER USER’S MANUAL COD. M12925CA Rel 1.2 08/2014 SOFTWARE VERSION 1.0x code 80379 / Edition 01 - 06/2012 1 • INSTALLATION 2 • TECHNICAL SPECIFICATIONS Display 2x4 digit green, high display 10 and 7mm Keys 4 of mechanical type (Man/Aut, INC, DEC, F) •...
  • Page 54 3 • DESCRIPTION OF FACEPLATE Function indicators Indication of output states Indicates modes of operation OUT 1 (AL1); OUT 2 (OPEN); OUT 3 (CLOSED) MAN/AUTO = OFF (automatic control) ON (manual control) PV Display: Indication of process variable Error Indication: LO, HI, Sbr, Err PRE-HEATING = ON (running) LO= the value of process variable is <...
  • Page 55 5 • “EASY” PROGRAMMING and CONFIGURATION S4 Jumper THE EASY CONFIGURATION (Pro=0...12) IS SUITABLE FOR (CPU) VERSIONS WITH AL1/OPEN/CLOSED LEVEL 1 MENU P.V. / S.V. Process variable P.V. / S.V. (PV display) Work Setpoint (SV display) or control output value with controller in manual Password Local Setpoint...
  • Page 56 • InFo Display Information display Software version 0 No Error Self diagnostic 1 Lo error code 2 Hi 3 ERR 4 SBR OUTPUT 2 OUTPUT 3 SERIAL COMMUNICATION 0 = None 0 = None 0 = None +8 error OUT2 card recognition 1 = Relay 1 = Relay +16 error OUT3 card recognition...
  • Page 57 • InP Input settings S, R range 0...1750°C; error < 0.2% f.s. (t > 300°C) / for other sp. r 0 default (remote setpoint present) Def. remote setpoint range; error < 0.5% f.s. error < 0.2% f.s. (t > -150°C) range 44...1800°C;...
  • Page 58 • Out Output settings Select a1. r reference signal for alarm1 AL.1.r AL.x.r Variable to be compared PV (process variable) AL.1.t AL.x.t Direct (high limit) Absolute or Normal 2/3 for a1. t Inverse (low limit) relative to Symmetrical alarm 1 active setpoint (window) direct...
  • Page 59 • Prot Protection code Prot Display Modification SP, Hy.P, Hy.n, AL.2, AL.3, PoS, OuP, INF SP, Hy.P , Hy.n, AL.2, AL.3, PoS SP, Hy.P, Hy.n, AL.2, AL.3, PoS, OuP, INF SP, OuP, INF + 4 to disable InP, Out + 8 to disable CFG + 16 to disable SW “power-up - power down”...
  • Page 60 ld. 1 Function of LEDs Val. Function none MAN/AUTO controller ld. 2 HOLD Selftuning enabled Autotuning enabled ld. 3 Error present Softstart running Set point gradient running Pre-heating running + 16 LED flashes if active • Lin Custom linearization for main input Step 0 beginning Display limits s.
  • Page 61 7 • CONSENT FOR BURNER AL1 Obtain burner consent by configuring alarm 1 as inverse deviation with positive hysteresis Hy.P and negative hysteresis Hy.n 8 • PRE-HEATING FUNCTION Enable the pre-heating function by setting parameters GS.0, Ht.0, GS.1 other than zero. It consists of three phases that are activated sequentially at firing: - Ramp 0 phase Enabled by setting GS.0 >...
  • Page 62 9 • ADJUSTMENT WITH MOTORIZED VALVE In an adjustment process the adjustment valve has the function of varying fuel delivery (frequently corresponding to the thermal energy introduced into the process) in relation to the signal coming from the controller. For this purpose it is provided with an actuator able to modify its opening value, overcoming the resistances produced by the fluid passing inside it.
  • Page 63 Valve control modes With the controller in manual, the setting of parameter At.y ≥ 8 allows direct control of the valve open and close commands through the keyboard Increments and Decrements on the front seats. V0 - for floating valve without potentiometer Model V0 have similar behaviour: every manoeuvre request greater than the minimum impulse t.Lo is sent to the actuator by means of the OPEN/CLOSE relays;...
  • Page 64 11 • MANUAL TUNING A) Enter the setpoint at its working value. B) Set the proportional band at 0.1% (with on-off type setting). C) Switch to automatic and observe the behavior of the variable. It will be similar to that in the figure: Process D) The PID parameters are calculated s follows: Proportional band Variable...
  • Page 65 15 • ACCESSORIES • Interface for instrument configuration Kit for PC via the USB port (Windows environment) for GEFRAN instruments configuration: KIT PC USB / RS485 o TTL Lets you read or write all of the parameters • A single software for all models •...
  • Page 67 21/06/2012 rev. 0 Set-up for 600V RRR0-1-T73 regulator Set up for temperature probe Pt100 (ex Siemens QAE2120 130°C max.) The regulator comes out of the factory preset with the corresponding values of the Siemens RWF40.000 and RWF50.2x Verify wiring of the sensor Regulation of the set-point = 80 It can be modified by using arrows "up"...
  • Page 68 A1.r … A1.t 3 (operating mode AL1 =inverse-relative-normal) … rL.1 2 (AL1) rL.2 18 (open) rL.3 19 (close) A.ty 9 (type of servocontrol command) Ac.t 12 (servocontrol running time: SQN72.4…/STA12..=12; SQM40.265=30) t_Lo t_Hi t.on t.oF dE.b 0,1 (dead zone in % of end scale) 99 then push and keep pushed F until visualization of Hrd …...
  • Page 69 Set up for temperature probe Pt100 for high temperature (350°C max.) Verify wiring of the sensor Regulation of the set-point = 80 It can be modified by using arrows "up" and "down". By pushing F you go to parameters: Hy.P 10 (hysteresis positive for output 1 terminals 21-22 (ex Q13-Q14) Hy.n -5 (hysteresis negative for output 1 terminals 21-22 (ex Q13-Q14)
  • Page 70 A1.r … A1.t 3 (mode AL1 =inverse-relative-normal) … rL.1 2 (AL1) rL.2 18 (open) rL.3 19 (close) A.ty 9 (type of servocontrol command) Ac.t 12 (servocontrol running time: SQN72.4…/STA12..=12; SQM40.265=30) t_Lo t_Hi t.on t.oF dE.b 0,1 (dead zone in % of end scale) 99 then push and keep pushed F until visualization of Hrd …...
  • Page 71 Set up for pressure transmitter 2 wires signal 4÷20mA With pressure transmitters first we need to enable their power supply: remove the part as shown below, then, on the CPU unit, move the bridge from Pt100 to +Vt IN/OUT cards Signal selection on terminal 3 Verify wiring of the sensor...
  • Page 72 …. 44 (4÷20mA) … dP_S 2 (decimals num.) Transmitter 1,6bar 3bar 10bar 16bar 25bar 40bar Lo.S 0,00 0,00 0,00 0,00 0,00 0,00 min. sensor scale Hi.S 1,60 3,00 10,00 16,00 25,00 40,00 max sensor scale offset of input correction Lo.L 0,00 0,00 0,00...
  • Page 73 Set -up for thermocouples type Verify wiring of the sensor Regulation of the set-point = 80 It can be modified by using arrows "up" and "down". By pushing F you go to parameters: Hy.P 10 (hysteresis positive for output 1 terminals 21-22 (ex Q13-Q14) Hy.n -5 (hysteresis negative for output 1 terminals 21-22 (ex Q13-Q14) Keep pushing F until you see PASS, release F and through the arrows set 99, push F and visualize Pro...
  • Page 74 A1.r … A1.t 3 (mode AL1 =inverse-relative-normal) … rL.1 2 (AL1) rL.2 18 (open) rL.3 19 (close) A.ty 9 (type of servocontrol command) Ac.t 12 (servocontrol running time: SQN72.4…/STA12..=12; SQM40.265=30) t_Lo t_Hi t.on t.oF dE.b 0,1 (dead zone in % of end scale) 99 then push and keep pushed F until visualization of Hrd …...
  • Page 77 RWF50.2x & RWF50.3x User manual M12922CB Rel.1.0 07/2012...
  • Page 78 DEVICE INSTALLATION Install the device using the relevant tools as shown in the figure. To wire the device and sensors, follow the instructions on the burner wiring diagram.
  • Page 79 FRONT PANEL NAVIGATION MENU Parameter level Basic display User Level - Opr SP1 or SP2 (editable) dSP readable and editable through bin1 = 2 InP1 or y (only display) Parameter Level - PArA HYS1 , HYS2 , HYS3 Pb1, dt, rt, db, tt Next parameter Main navigation...
  • Page 80 RWF5 is preset good for 90% of applications. However, you can set or edit parameters as follow: Set-point: set or modification: When the burner is in stand-by, (safety loop open, that is terminals 3-4/T1-T2 on the 7 pole plug open) push the Enter button: on the lower display (green) Opr appears;...
  • Page 81 Setting the kind of sensor to be connected to the device:  push the Enter button: on the lower display (green) Opr appears. Using the up and down arrows find ConF. Push Enter to confirm.  Now on the green display the group InP appears. Push Enter and InP1 is displaied. Enter to confirm. ...
  • Page 82 ConF > Cntr Parameter Value Description CtYP 1 = 3-position controller (open-stop-close only RWF50.2) controller type 2 = continuative action controller (only RWF50.3) CACt 1 = heating controller control action 0 = cooling controller least value of the set-point limitation prevents entry of values outside the defined set-point range -1999..0..+9999 range...
  • Page 83 ConF > OutP (parameter under group only for RWF50.3) Parameter Value Description FnCt 1 = analog input 1 doubling with possibility to convert tipo di controllo (depending on par SiGn) 4 = modulation controller SiGn physical output signal (terminals A+, A-) type of output signal 0 = 0÷20mA 1 = 4÷20mA...
  • Page 84 Manual control :  in order to manual change the burner load, while firing keep pushing the ESC button for more than 5 s; on the lower green display Hand appears.  using the UP and DOWN arrows, the load varies. ...
  • Page 85 Electric connection : With 7 pins connector version With terminals version Matches terminals between RWF50.2 and RWF40.0x0...
  • Page 86 Parameters summarising for RWF50.2x: Conf Conf Navigation menù Inp1 Cntr diSP PArA Types of probe SEn1 OFF1 SCL1 SCH1 Unit dECP Pb. 1 dt HYS1 (*) HYS3 (*) SP1 (*) Siemens QAE2120… needless needless 80 350 (#) 80 °C Siemens QAM2120.. needless needless 80 350 (#)
  • Page 87 APPENDIX: PROBES CONNECTION To assure the utmost comfort, the control system needs reliable information, which can be obtained provided the sensors have been installed correctly. Sensors measure and transmit all variations encountered at their location. Measurement is taken based on design features (time constant) and according to specific operating conditions.With wiring run in raceways, the sheath (or pipe) containing the wires must be plugged at the sensor's terminal board so that currents of air cannot affect the sensor's measurements.
  • Page 88 Duct or pipe sensors Installing pressure sensors A - installation on ducts carrying fluids at max. temperature 80°C Installing temperature sensors For measuring outlet air: B - installation on ducts at temperature over 80°C and for refrigerants  after delivery fan or C - installation on ducts at high temperatures: ...
  • Page 89 Immersion or strap-on sensors Immersion probes installation Sensors must be installed on the stretch of pipe in which fluid circulates all the time. The rigid stem (sensing element doing the measuring) must be inserted by at least 75mm and must face the direction of flow. Recommended locations: on a bend or on a straight stretch of pipe but tilted by 45°...
  • Page 90 Duct pressure switches and sensors Installing differential pressure probes for air Basic principles Measuring static pressure(i.e. pressure exerted by air on pipe walls) A - Control a filter (clogging) Measuring dinamic pressure B - Control a fan (upstream/downstream) Kg/m , specific weight of air m/s, air speed 9.81 m/s gravity acceleration...
  • Page 91 Spare parts Description Code Modulator RWF50.2 (uscita a 3 punti - apri, fermo, chiudi) 2570148 2570149 Modulator RWF50.3 (uscita continua 0÷20mA, 4÷20mA, 0÷10V) Temperature probe Siemens QAE2120.010A (30÷130°C) 2560101 2560135 Temperature probe Siemens QAM2120.040 (-15÷+50°C) 2560188 Thermoresistor Pt1000 ø6mm L100mm (30÷130°C) Thermoresistor Pt1000 ø10mm L200mm (0÷350°C) 2560103 2560145...
  • Page 92 Note: Specifications and data subject to change. Errors and omissions excepted.
  • Page 93 KM3 Modulator USER MANUAL M12927CA Rel.1.0 10/2020...
  • Page 94 M12927CA MOUNTING...
  • Page 95 M12927CA DISPLAY Y AND KEY onsent to the burner is rned off OUTP UT LEDs ON (o out1) - Consen nt to the burne ▲ - (o out2) Output i ncrease ▼ - (o out3) Output d decrease ● - (ou ut4) Modulato r is powered o perator Mode...
  • Page 96 M12927CA CONNECTIONS DIAGRAM Probe connection: • PT1000/NTC/PTC: between terminal 3 and 2 • PT 100: between terminal 3 and 2 with terminal 1 • Passive pressure probe 0/4-20 mA: between terminal 4 ( + ) e 1 ( - ) Note: out4 must be activated ( IO4F must be setted to ON ) •...
  • Page 97 M12927CA SETPOINT AND HYSTERESIS CONFIGURATION (SP, AL1, HAL1 parameters) Push the     button to enter into the setpoint configuration:  SP setpoint value change: increase decrease 2480 Confirm / Next AL1 parameter value change: increase decrease Confirm / Next HAL1 HAL1 parameter value change: increase decrease Confirm / Next Back to the first parameter To return to normal mode, press the key for 3 seconds or wait the 10s timeout...
  • Page 98 M12927CA LIMITED ACCESS LEVEL Proceed as follows to change some parameters that are not visible in standard user mode: Press the key for Password = 20 3 seconds Access to parameter: Increase the displayed value Decrease the displayed value Confirm and go to next parameter Param Description...
  • Page 99 M12927CA...
  • Page 100 M12927CA CONFIGURATION How to access configuration level The configuration parameters are collected in various groups. Every group defines all parameters related with a specific function (e.g.: control, alarms, output functions). Push the button for more than 5 seconds. The upper display will show PASS while the lower display will show 0.
  • Page 101 M12927CA Safety output value -100... 100 io4.F I/O4 function selection on = Out4 will be ever ON (used as a transmitter power supply) ,out4 = Uscita 4 (Used as digital output 4), dG2c = Digital input 2 for contact closure, dG2U = Digital input 2 driven by 12... 24 diF1 Digital input 1 function oFF = Not used,...
  • Page 102 M12927CA windows SE.br = Sensor Break LodE = Deviation low alarm (relative) HidE = Deviation high alarm (relative) LHdo = Relative band alarm in alarm out of the band LHdi = Relative band alarm in alarm inside the band Alarm 1 function 0...
  • Page 103 M12927CA AL3 Group - alarm 3 parameters Param Description Values Liv N° Default AL3t Alarm 3 type nonE = Alarm not used nonE LoAb = Absolute low alarm HiAb = Absolute high alarm LHAo = Windows alarm in alarm outside the windows LHAI = Windows alarm in alarm inside the windows...
  • Page 104 M12927CA SELF Self tuning enabling no = The instrument does not perform the self- tuning YES = The instrument is performing the self- tuning Proportional band 1... 9999 (E.U.) page 7 Integral time 0 (oFF) ... 9999 (s) page 7 Derivative time 0 (oFF) ...
  • Page 105 M12927CA AAc = Alarm reset ASi = Alarm acknowledge chSP = Sequential set point selection St.by = Stand by mode. The first press puts the instrument in stand by mode while a second one puts the instrument in Auto mode. Str.t = Timer run/hold/reset P.run = Program run P.rES = Program reset...
  • Page 106 M12927CA con Group - Consumption parameters Param Description Values N° Default Co.tY Count type oFF = Not used 1 = Instantaneous power (kW) 2 = Power consumption (kW/h) 3 = Energy used during program execution. This measure starts from zero when a program runs end stops at the end of the program.
  • Page 107 M12927CA OPERATIVE MODES When the instrument is powered, it starts immediately to work according to the parameters values loaded in its memory. The instrument behaviour and its performance are governed by the value of the stored parameters. At power ON the instrument can start in one of the following mode depending on its configuration: Automatic Mode In Automatic mode the instrument drives automatically the control output according to the parameter value set and the set point/measured value.
  • Page 108 M12927CA Direct set point modification This function allows to modify rapidly the set point value selected by [83] A.SP (selection of the active Set point) or to the set point of the segment group (of the programmer) currently in progress. Push button.
  • Page 109 M12927CA ERROR MESSAGES The upper display shows the OVER-RANGE and UNDERRANGE conditions with the following indications: Over-range: Under-range The sensor break will be signalled as an out of range: Note: When an over-range or an under-range is detected, the alarms operate as in presence of the maximum or the minimum measurable value respectively.
  • Page 110 KM3 Modulator USER MANUAL M12927CA Rel.1.0 10/2020...
  • Page 111 M12927CA MOUNTING...
  • Page 112 M12927CA DISPLAY Y AND KEY onsent to the burner is rned off OUTP UT LEDs ON (o out1) - Consen nt to the burne ▲ - (o out2) Output i ncrease ▼ - (o out3) Output d decrease ● - (ou ut4) Modulato r is powered o perator Mode...
  • Page 113 M12927CA CONNECTIONS DIAGRAM Probe connection: • PT1000/NTC/PTC: between terminal 3 and 2 • PT 100: between terminal 3 and 2 with terminal 1 • Passive pressure probe 0/4-20 mA: between terminal 4 ( + ) e 1 ( - ) Note: out4 must be activated ( IO4F must be setted to ON ) •...
  • Page 114 M12927CA SETPOINT AND HYSTERESIS CONFIGURATION (SP, AL1, HAL1 parameters) Push the     button to enter into the setpoint configuration:  SP setpoint value change: increase decrease 2480 Confirm / Next AL1 parameter value change: increase decrease Confirm / Next HAL1 HAL1 parameter value change: increase decrease Confirm / Next Back to the first parameter To return to normal mode, press the key for 3 seconds or wait the 10s timeout...
  • Page 115 M12927CA LIMITED ACCESS LEVEL Proceed as follows to change some parameters that are not visible in standard user mode: Press the key for Password = 20 3 seconds Access to parameter: Increase the displayed value Decrease the displayed value Confirm and go to next parameter Param Description...
  • Page 116 M12927CA...
  • Page 117 M12927CA CONFIGURATION How to access configuration level The configuration parameters are collected in various groups. Every group defines all parameters related with a specific function (e.g.: control, alarms, output functions). Push the button for more than 5 seconds. The upper display will show PASS while the lower display will show 0.
  • Page 118 M12927CA Safety output value -100... 100 io4.F I/O4 function selection on = Out4 will be ever ON (used as a transmitter power supply) ,out4 = Uscita 4 (Used as digital output 4), dG2c = Digital input 2 for contact closure, dG2U = Digital input 2 driven by 12... 24 diF1 Digital input 1 function oFF = Not used,...
  • Page 119 M12927CA windows SE.br = Sensor Break LodE = Deviation low alarm (relative) HidE = Deviation high alarm (relative) LHdo = Relative band alarm in alarm out of the band LHdi = Relative band alarm in alarm inside the band Alarm 1 function 0...
  • Page 120 M12927CA AL3 Group - alarm 3 parameters Param Description Values Liv N° Default AL3t Alarm 3 type nonE = Alarm not used nonE LoAb = Absolute low alarm HiAb = Absolute high alarm LHAo = Windows alarm in alarm outside the windows LHAI = Windows alarm in alarm inside the windows...
  • Page 121 M12927CA SELF Self tuning enabling no = The instrument does not perform the self- tuning YES = The instrument is performing the self- tuning Proportional band 1... 9999 (E.U.) page 7 Integral time 0 (oFF) ... 9999 (s) page 7 Derivative time 0 (oFF) ...
  • Page 122 M12927CA AAc = Alarm reset ASi = Alarm acknowledge chSP = Sequential set point selection St.by = Stand by mode. The first press puts the instrument in stand by mode while a second one puts the instrument in Auto mode. Str.t = Timer run/hold/reset P.run = Program run P.rES = Program reset...
  • Page 123 M12927CA con Group - Consumption parameters Param Description Values N° Default Co.tY Count type oFF = Not used 1 = Instantaneous power (kW) 2 = Power consumption (kW/h) 3 = Energy used during program execution. This measure starts from zero when a program runs end stops at the end of the program.
  • Page 124 M12927CA OPERATIVE MODES When the instrument is powered, it starts immediately to work according to the parameters values loaded in its memory. The instrument behaviour and its performance are governed by the value of the stored parameters. At power ON the instrument can start in one of the following mode depending on its configuration: Automatic Mode In Automatic mode the instrument drives automatically the control output according to the parameter value set and the set point/measured value.
  • Page 125 M12927CA Direct set point modification This function allows to modify rapidly the set point value selected by [83] A.SP (selection of the active Set point) or to the set point of the segment group (of the programmer) currently in progress. Push button.
  • Page 126 M12927CA ERROR MESSAGES The upper display shows the OVER-RANGE and UNDERRANGE conditions with the following indications: Over-range: Under-range The sensor break will be signalled as an out of range: Note: When an over-range or an under-range is detected, the alarms operate as in presence of the maximum or the minimum measurable value respectively.

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