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Unigas TN90 Manual Of Installation - Use - Maintenance

Progressive, fully-modulating heavy oil burners
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TN90 - TN91 - TN92
TN510 - TN515
TN520 - TN525
Progressive, Fully-modulating
Heavy oil Burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
M039259CA Rel. 0.0 10/2010

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  • Page 1 TN90 - TN91 - TN92 TN510 - TN515 TN520 - TN525 Progressive, Fully-modulating Heavy oil Burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039259CA Rel. 0.0 10/2010...

  • Page 3: General Introduction

    WARNINGS 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 PRO- DUCT INSTALLATION AND MAINTENANCE. THE USER WILL FIND FURTHER INFORMATION ABOUT OPERATING AND USE RESTRICTIONS, IN THE SECOND SECTION OF THIS MANUAL.

  • Page 4: Directives And Standards

    DIRECTIVES AND STANDARDS 3b) FIRING WITH GAS, LIGHT OIL OR OTHER FUELS Gas burners GENERAL European directives:  The burner shall be installed by qualified personnel and in com- - Directive 2009/142/EC - Gas Appliances; pliance with regulations and provisions in force; wrong installation Directive 2006/95/EC on low voltage;...

  • Page 5: General Features

    CIB UNIGAS - M039259CA PART I: INSTALLATION MANUAL GENERAL FEATURES This series of industrial burners is designed for all those applications that require big-sized air fans or air-flue heat exchangers to be installed in sound-proof areas to reduce noise. They can be provided with built-in or separately-mounted control panel (console or wall- mounted.

  • Page 6: Burner Model Identification

    Burners are identified by burner type and model. Burner model identification is described as follows. Type TN90 Model (1) BURNER TYPE TN90 - TN91 - TN92 - TN93 - TN510 - TN515 - TN520 - TN525  (2) FUEL N - Heavy oil, viscosity 50cSt (7°...

  • Page 7: Specifications

    CIB UNIGAS - M039259CA Specifications Note: Output values are valid for comburent air temperature lower than 50°C. BURNERS TN90 TN91 TN92 min. - max. kW Output 264 - 1900 698 - 2093 849-2558 Heavy oil Fuel See “Burner model identification” table Oil viscosity min.

  • Page 8: Performance Curves

    CIB UNIGAS - M039259CA Performance Curves Output diagram (air temperature = 15°C) TN525 TN520 TN515 TN510 TN92 TN91 TN90 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 Burner performance range Performance range To get the input in kcal/h, multiply value in kW by 860. Data are referred to standard conditions: 1013mbar, 15°C...
  • Page 9 Overall dimensions (mm) Boiler recommended drilling plate and burner flange Air inlet flange A(S*) A(L*) AA AM B(S*) B(L*) TN90 1409 1559 454 490 1069 307 865 198 180 TN91 1315 1505 454 488 1017 307 865 208 180 TN92 1318 1508 454...
  • Page 10 Boiler recommended drilling template and burner flange Counterflange and air inlet flange A(S*) A(L*) AA AD AF AG AH AI AM B(S*) B(L*) TN510 1515 1695 536 25 383 448 295 340 520 1175 858 316 542 345 385 328 185 460 534 719 M14 552 390 693 390 954 249 235 TN515 1515 1695 536 25 383 448 295 340...

  • Page 11: Fan Installation

    C.I.B. UNIGAS - M039259CA MOUNTING AND CONNECTING THE BURNER Packing Burners are despatched in wooden crates whose dimensions are: burner head: 1730mm x 1280mm x 1020mm/1730mm x 1430mm x 1130mm(L x P x H) oil pumping/heating unit:1180mm x 1260mm x 1320mm(L x P x H) control panel: 1020mm x 650mm x 1310mm(L x P x H) Packing cases dimensions can change.
  • Page 12 C.I.B. UNIGAS - M039259CA between the fan and the burner and according to the fan features as well. ATTENTION! The bellows unit provided is made of canvas and is provided with blocking spacers to avoid breaking it during installation: first place the bellows unit between flanges, then remove the spacers. Canvas has to be stretched after the instal- lation, but not stressed.
  • Page 13 C.I.B. UNIGAS - M039259CA Connections to the oil gun Gun with the oil nozzle inside 1 Inlet 2 Return 3 Gun opening 4 Heating wire (only for oil viscosity > 50Cst @ 50°C) 5 Cartdrige-type heater (only for oil viscosity >...
  • Page 14 Connecting the burner to the oil pumping unit Follow the scheme in the picture below to connect the burner to the oil pumping unit. The pump sends the oil coming from the tank to the burner. The pressure governor makes the oil reach the nozzle at the required pressure, while the excess of oil goes back to the tank.

  • Page 15: Electrical Connections

    CIB UNIGAS - M039259CA About the use of fuel pumps  Make sure that the by-pass plug is not used in a single pipe installation, because the fuel unit will not function properly and damage to the pump and burner motor could result.
  • Page 16 CIB UNIGAS - M039259CA to the diagram on Fig. 5, it is possible to realise that to pump an oil with 50°E viscosity at 50°C, it must be heated at about 80°C. Pipe heating system Pipe heating system must be provided, that is a system to heat pipes and plant components to mantain the viscosity in the pumping lim- its.
  • Page 17 CIB UNIGAS - M039259CA Viscosity units conversion table Saybolt Cinematics Saybolt Redwood Engler Degrees Seconds Redwood Seconds viscosity Seconds Seconds no.1 (°E) Universal no..2 (Admiralty) Centistokes (cSt) Furol (SSF) (Standard) (SSU) 2.56 1.16 32.1 1.31 36.2 1.58 44.3 5.83 10.3 1.88...
  • Page 18 CIB UNIGAS - M039259CA VISCOSITY vs TEMPERATURE DIAGRAM FOR COMBUSTIBLE OILS 1000 PUMPING LIMIT TEMPERATURE (°C) LIGHT OIL 1,3°E AT 20°C HEAVY OIL 2,4°E AT 50°C HEAVY OIL 4°E AT 50°C HEAVY OIL 7,5°E AT 50°C HEAVY OIL 10°E AT 50°C HEAVY OIL 13°E AT 50°C...
  • Page 19 CIB UNIGAS - M039259CA Indicative diagram showing the oil temperature at burner pump inlet vs. oil viscosity Example: if the oil has a 50°E @ 50°C viscosity, the oil temperature at the pump inlet should be 80°C (see diagram). OIL TEMPERATURE FOR PUMP FEEDING TEMPERATURE (°C)

  • Page 20: Hydraulic Diagrams

    CIB UNIGAS - M039259CA HYDRAULIC DIAGRAMS Fig. 8 - Hydraulic diagram 3ID0023 - Single burner configuration...
  • Page 21 CIB UNIGAS - M039259CA Fig. 9 - Hydraulic diagram 3ID0014 - Two or more burners configuration...
  • Page 22 CIB UNIGAS - M039259CA Hydraulic Diagram 3ID0014 Hydraulic Diagram 3ID0023 1 Main tank 1 Main tank 2 Bottom valve 2 Bottom valve 3 Main tank pre-heating pipe 3 Main tank pre-heating pipe 4 Oil filter (filtration, 1mm) 4 Oil filter...
  • Page 23 CIB UNIGAS - M039259CA Adjusting heavy oil flow rate The oil flow rate can be adjusted choosing a by-pass nozzle that suits the boiler/utilisation output and setting the delivery and return pressure values according to the ones quoted on the chart below and the diagram s (as far as reading the pressure values, see next paragraphs).
  • Page 24 CIB UNIGAS - M039259CA Oil thermostat adjustment To find the thermostats, remove the cover of the burner switchboard. Adjust them using a screwdriver on the VR screw as shown in the next picture. NOTE: thermostat TCI is provided on burners fired with fuel oil having a 50° E at 50° C viscosity only.

  • Page 25: Adjustment Procedure

    CIB UNIGAS - M039259CA ADJUSTMENTS 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 26 CIB UNIGAS - M039259CA mensions Dimensions in SQM4... Actuator cams High flame Stand-by and Ignition Low flame MAN-AUTO MAN-AUTO Berger STM30 Siemens SQM40 The nozzle supply pressure is already factory-set and must not be changed. Only if necessary, adjust the supply pressure as fol- lows (see related paragraph);insert a pressure gauge into the port shown on Fig.
  • Page 27 CIB UNIGAS - M039259CA adjustment is accomplished. Attention! if it is necessary to change the head position, repeat the air and gas adjustments described above. 12 the air and oil rate are now adjusted at the maximum output stage, go on with the point to point adjustement on the SV (Fig. 13) adjusting cam as to reach the minimum output point.

  • Page 28: Limitations Of Use

    CIB UNIGAS - M039259CA 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 29: Routine Maintenance

    CIB UNIGAS - M039259CA 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 30 CIB UNIGAS - M039259CA Removing the combustion head  Remove the cover H.  Slide the photoresistor out of its housing.  Unscrew the oil connections E (Fig. 14) connecting the flexible pipes to the gun L and remove the whole assembly as shown in Fig.
  • Page 31 CIB UNIGAS - M039259CA Nozzle and electrodes correct position .Place the nozzle according to the combustion head; unscrew VB and move the combustion head. Check the ignition electrodes at the end of the procedure. Quotes are referred in mm. Fig. 17 Checking the detection current To check the flame itensity signal, follow the diagram shown on the next picture.

  • Page 32: Troubleshooting

    CIB UNIGAS - M039259CA TROUBLESHOOTING CAUSES/TROUBLES  MAIN SWITCH OFF  LINE FUSES BLOWN  MAXIMUM THERMOSTAT MALFUNCTION  FAN THERMAL CUTOUT TRIPPED  AUXILIARY FUSE BLOWN   OIL RESISTOR FAULTY   OIL ENABLING THERMOSTAT TRIPPED  ...
  • Page 33 BURNER EXPLODED VIEW POS. DESCRIPTION POS. DESCRIPTION RING NUT 4.20 RESISTOR PHOTORESISTOR 4.21 CONNECTOR STANDARD BLAST TUBE 4.22.1 PRESSURE SWITCH SPACER 4.22.2 CONNECTOR INDEX LABEL DUAL-BLOCK BURNER SOLENOID VALVE 5.1.1 COVER PROTECTION GENERATOR GASKET BUSH INSPECTION GLASS ADJUSTING CAM AIR INTAKE DAMPER 4.6.1 ADJUSTING CAM FOIL 5.4.1...

  • Page 35: Spare Parts

    CIB UNIGAS - M039259CA SPARE PARTS DESCRIPTION TN90 TN91 TN92 CONTROL BOX 2020420 2020420 2020420 RIGHT ELECTRODE 2080250 2080250 2080250 LEFT ELECTRODE 2080251 2080251 2080251 FILTER FOR OIL VISCOSITY > 50 cSt @ 50°C 2090207 2090207 2090207 GASKET 2110048 2110048...
  • Page 36 CIB UNIGAS - M039259CA DESCRIPTION TN510 TN515 TN520 TN525 CONTROL BOX SIEMENS LAL 2020420 2020420 2020420 2020420 RIGHT ELECTRODE 2080250 2080250 2080250 2080250 LEFT ELECTRODE 2080251 2080251 2080251 2080251 FILTER FOR OIL VISCOSITY > 50 cSt @ 50°C 2090207 2090207...
  • Page 37 APPENDIX t3’ Long preignition time: «Z» connected to terminal 15. Postignition time: SIEMENS LAL.. CONTROL BOX - «Z» must be connected to terminal 15 - With short preignition, «Z» remains on until «TSA» has elapsed connec-  Control and supervision of oil atomization burners tion to terminal 16.
  • Page 38 4 A max., 20 A peak Internal fuse T6,3H250V according to IEC 127 During burner off times, the flame supervision circuit is live. External fuse max. 10 A Weight Device 1000 g Lockout indication Plug-in base 165 g Q R C 1 ... b r1 Startup sequence b-b’...
  • Page 39 Postpurge time (with «M2») Interval between start command and voltage at terminal 7 (start delay time for «M2») Duration of startup sequence (excluding «t11» and «t12») Interval from startup to the beginning of the air pressure check Air damper running time to the OPEN position Air damper running time to the low-fire position (MIN) Permissible afterburn time Interval to the OPEN command for the air damper...
  • Page 40 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 without notice. Errors and omissions excepted.

  • Page 41: Technical Specifications

    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 42 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 43: Programming And Configuration

    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 44 • 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 45 • 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 46 • 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 47 • 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 48 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 49: Pre-Heating Function

    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 50 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 51: Control Actions

    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 52: Manual Tuning

    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 53: Order Code

    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 55 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 56: Manual Operation

    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 57 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 58 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 59 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 60 …. 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 61 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 62 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 65 RWF50.2x & RWF50.3x User manual M12922CB Rel.1.0 07/2012...

  • Page 66: Device Installation

    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 67: Front Panel

    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 68 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 69 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 70 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 71 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 72 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 73: Electric Connection

    Electric connection : With 7 pins connector version With terminals version Matches terminals between RWF50.2 and RWF40.0x0...
  • Page 74 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 75 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 76 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 77 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 78 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 79 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 80 Note: Specifications and data subject to change. Errors and omissions excepted.
  • Page 81 KM3 Modulator USER MANUAL M12927CA Rel.1.0 10/2020...
  • Page 82 M12927CA MOUNTING...
  • Page 83 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 84: Probe Connection

    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 85: Operation Example

    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 86 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 87 M12927CA...

  • Page 88: Configuration Parameters

    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 89 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 90 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 91 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 92 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 93 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 94 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 95: Automatic Mode

    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 96: Manual Mode

    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 97: List Of Possible Errors

    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 98 MANUALE USER SUPPORT MULTI-THERMOSTAT MCX06C MCX06C is a multi-thermostat with four 100k NTC inputs. It can control up to 4 temperatures showing them (not more than 2 at the same time) on a couple of displays. It is used to check and adjust oil heater temperatures. it works as follows: as soon as the burner control gives the GO to the digital 1 input (terminals DI1-COM), the adjustment program runs (the relevant LED is ON).
  • Page 99 Connections from terminal side : 24V AC Probe connection: input AI1 = probe Pb1 = set-point “tr” = oil heater temperature probe; input AI2 = probe Pb2 = set-point “tCI” = plant consent temperature probe (when installed); input AI3 = probe Pb3 = set-point “OIL” = oil heater output temperature probe (PID regulation); input AI4 = probe Pb4 = set-point “tcn”...
  • Page 100 (tCI - Pb2 probe only for mechanical atomizing burners) Menu : To enter the menu below, keep pushing ENTER for more than 3 s. Menu code Sub-menu code Function Notes Probes values You can see in sequence the 4 probe values (UP and DOWN keys): the probe code is on display A (Pb1,..., Pb4) and the probe value is on display B (not fitted or out...
  • Page 101 submenu CnF - configuration parameters group : Visibility Password Modbus Menu Parameter Description Additional description Default U.M. condition level index CONFIGURATION Analog Input 1 This parameter enables or disables the Probe 1 Presence probe Calibration Probe 1 Don't modify it -20,0 20,0 °C...
  • Page 102 Visibility Modbus Menu Parameter Description Additional description Default U.M. condition Level index Autotuning Output temperature hysteresis Don't modify it 50,0 °C Startup number Don't modify it Measurement cycles number Don't modify it Max. differential command Don't modify it exit 0,01 10,00 10,00 Differential reduction exit...
  • Page 103 Submenu REG – regulation parameters group : Visibility Modbus Menu Parameter Description Additional description Default U.M. condition Level index REGULATION Probe 1 Set-point Probe 1 Don't modify it (Tank resistor) -50,0 200,0 °C Probe 1 - Low Temperature Alarm Don't modify it Threshold -50,0 200,0...
  • Page 104 Visibility Modbus Menu Parameter Description Additional description Default U.M. condition Level index Overshooting for Integral action Don't modify it (Oil tank exit) 1000 Derivative action enabling Don't modify it (Oil tank exit) Filtering factor for derivative action Don't modify it (Oil tank exit) Duty cicle PWM for output DO3 Don't modify it...
  • Page 105 Alarms & Warning: When the red triangle on the top left lights, one or more alarms are activated. When the red key on the left lights, the output N05-C5 is active and the relay KTRS switches the resistors OFF. Check the reason, correct the failure and, as soon as the temperature is lower than trS, reset it through ALA/rES . In order to show active alarms and warnings, select the relevant menu through ALA/Act.and, using the UP and DOWN buttons, scroll the lines.

This manual is also suitable for:

Tn91Tn92Tn510Tn515Tn520Tn525

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