Unigas HTP90A Manual Of Installation - Use - Maintenance
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Unigas HTP90A Manual Of Installation - Use - Maintenance

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HTP90A - HTP91A
HTP92A - HTP93A
HTP512A - HTP515A
HTP520A - HTP525A
and fully-modulating
gas - light oil burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
Progressive
M039219CC Rel. 2.4 10/2020

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  • Page 1 HTP90A - HTP91A HTP92A - HTP93A HTP512A - HTP515A HTP520A - HTP525A Progressive and fully-modulating gas - light oil burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039219CC Rel. 2.4 10/2020...

  • Page 2: General Introduction

    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 3: Directives And Standards

    DIRECTIVES AND STANDARDS do not leave the equipment exposed to weather (rain, sun, etc.) unless expressly required to do so; Gas burners European directives do not allow children or inexperienced persons to use equipment; -2009/142/EC (Gas Directive) The unit input cable shall not be replaced by the user. -2014/35/UE (Low Tension Directive) In case of damage to the cable, switch off the unit and contact qualified -2014/30/UE (Electromagnetic compatibility Directive)

  • Page 4: Symbols Used

    -EN 60204-1:2006 (Safety of machinery – Electrical equipment of machi- nes.) Failure to observe the warning may -CEI EN 60335-1 (Specification for safety of household and similar electri- result in serious injuries or death. DANGER! cal appliances); -CEI EN 60335-2-102 (Household and similar electrical appliances. Safety.

  • Page 5: General Features

    Bilt-in or separated control panel backpressure (data are available on the boiler’s ID plate or in the user’s manual). Burners provided with built-in control panel are designed for IP40 index of protection. For other values of IP, please contact the CIB UNIGAS Technical Dpt.
  • Page 6 Data requested: Power output diagram at 15àC air temperature furnace input; air temperature altitude Example: TP1050 TP1030 furnace input: 9600kW TP525A air temperature: 15°C TP520A altitude: 0m TP515A TP512A TP93A Fig. 1 TP92A TP91A TP90A 2000 4000 6000 8000 10000 12000 14000 16000...

  • Page 7: Burner Specifications

    50 = Rp2 65 = DN65 80 = DN80 100 = DN100 Technical specifications Note: the Output values are referred to comburent air temperature lower than 50°C. BURNER TYPE HTP90A HTP91A HTP92A HTP93A 480 - 3050 550 - 4100 Output...
  • Page 8 9750/11. BURNER TYPE HTP512A HTP515A HTP520A HTP525A Output max kW 1000 - 6400 2000 - 9750 600-4500 770 - 5200 Natural gas Light oil Fuel Gas category see next paragraph Gas rate 63 - 476 81 - 550 106 - 677 212 - 1032 min.-max.
  • Page 9 Overall dimensions (mm) Air inlet flange and burner flange Boiler drilling plate HTP90A 1356 1342 HTP90A 1356 1447 HTP90A 1356 1449 HTP90A 100 1356 1539 1049 HTP91A 1356 1342 HTP91A 1356 1447 HTP91A 1356 1449 HTP91A 100 1356 1539 1049...
  • Page 10 Air inlet flange Burner flange Burner recommended counterflange Boiler recommended drilling template HTP512A 50 1475 1477 160 525 HTP512A 65 1475 1456 160 403 HTP512A 80 1475 1458 160 444 HTP512A 100 1475 1548 1049 160 524 HTP515A 50 1491 1477 160 525 HTP515A 65...
  • Page 11 Performance Curves Output diagram (air temperature = 15°C) HTP525A HTP520A HTP515A HTP512A HTP93A HTP92A HTP91A HTP90A 2000 4000 6000 8000 10000 12000 14000 16000 Campo di scelta bruciatore Burner performance range To get the input in kcal/h, multiply value in kW by 860.
  • Page 12 Pressure in the Network / gas flow rate curves HTP90A HTP91A Rp 2" (50) Rp 2" (50) DN65 DN65 DN80 DN80 DN100 DN100 90 110 130 150 170 190 210 230 250 HTP92A HTP93A Rp 2" (50) Rp 2" (50)
  • Page 13 MOUNTING AND CONNECTING THE BURNER Transport and storage ATTENTION! The equipment must be installed in compliance with the regulations in force, following the manufac- turer’s instructions, by qualified personnel. All handling operations must be carried out with appropriate resources and qualified personnel ATTENTION: Use intact and correctly dimensioned hoisting equipment, conforms to the local regulations and health and safety regulations.
  • Page 14 Pay attention when designing the air duct: dimensioning must be performed according to the flow rate, the temperature, the distance 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.
  • Page 15 Gas train connections The diagrams show the components of the gas trai included in the delivery and which must be fitted by the installer.The diagrams are in compliance with the current laws. ATTENTION: BEFORE EXECUTING THE CONNECTIONS TO THE GAS PIPE NETWORK, BE SURE THAT THE MANUAL CUTOFF VALVES ARE CLOSED.
  • Page 16 Assembling the gas grain To assemble the gas train, proceed as follows: gas supply network ”direction” arrows for installation Keys 1A..1E Gasket Gas filter Gas valves group Bellow joint Manual cock Fig. 3 - 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 17 SKP1. SKP2. SIEMENS VGD..MOUNTING POSITIONS (spring) (cap) Fig. 4 Siemens VGD valves with SKP actuator: The pressure adjusting range, upstream the gas valves group, changes according to the spring provided with the valve group. 0 - 22 15 - 120 100 - 250 Performance range (mbar) neutral...
  • Page 18 Hydraulic diagrams for light oil supplying circuits Fig. 5 - Gravity circuit Fig. 6 - Ring circuit Fig. 7 - Suction circuit Manual valve Light oil filter Light oil feeding pump One way valve Flexible hoses Relief valve NOTE: in plants where gravity or ring feed systems are provided, install an automatic interception device (see n. 4).
  • Page 19 Installation diagram of light oil pipes PLEASE READ CAREFULLY THE “WARNINGS” CHAPTER AT THE BEGINNING OF THIS MANUAL. From tank To tank Fig. 8 - Double-pipe system The burner is supplied with filter and flexible hoses, all the parts upstream the filter and downstream the return flexible hose, must be installed by the customer.
  • Page 20 About the use of fuel pumps Do not use fuel with additives to avoid the possible formation over time of compounds which may deposit between the gear teeth, thus obstructing them. After filling the tank, wait before starting the burner. This will give any suspended impurities time to deposit on the bottom of the tank, thus avoiding the possibility that they might be sucked into the pump.
  • Page 21 Suntec TV Pressure governor Pressure adjustment Remove cap-nut 1 and the gasket 2, unscrew the lock nut 4. To increase pressure, twist adjusting screw 3 clockwise. To decrease the pressure, twist screw counterclockwise. Tight the lock nut 4, refit the gasket 2 and the cap nut 1.
  • Page 22 Electrical connections Respect the basic safety rules. make sure of the connection to the earthing system. do not reverse the phase and neutral connections. fit a differential thermal magnet switch adequate for connection to the mains. ATTENTION: before executing the electrical connections, pay attention to turn the plant’s switch to OFF and be sure that the burner’s main switch is in 0 position (OFF) too.
  • Page 23 Rotation of fan motor Once the electrical connection of the burner is executed, remember to check the rotation of the fan motor. The motor should rotate according to the indication on the body. In the event of wrong rotation, reverse the three-phase supply and check again the rotation of the motor.
  • Page 24 Combustion head gas pressure curves depending on the 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 properly adjusted (percentage of residual O in the flues as shown in the “Recommended combustion values”...
  • Page 25 Pressure in combustion head - gas flow rate curves HTP90A HTP91A 100 120 140 160 180 200 220 240 260 280 300 Stm3/h Stm3/h HTP92A HTP93A 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340...
  • Page 26 ADJUSTING AIR AND GAS FLOW RATES Keys Gas filter Gas proving system Gas valves Adjusting cam Actuator Fig. 14 Gas Filter The gas filters remove the dust particles that are present in the gas, and prevent the elements at risk (e.g.: burners, counters and regu- lators) from becoming rapidly blocked.
  • Page 27 Air and gas flow rate adjustements ATTENTION: before starting the burner up, be sure that the manual cutoff valves are open and check that the pressure upstream the gas train complies the value quoted on paragraph “Technical specifications”. Be sure that the mains switch is closed. ATTENTION: During commissioning operations, do not let the burner operate with insufficient air flow (dan- ger of formation of carbon monoxide);...
  • Page 28 HTP91A - HTP92A - HTP93A open holes close holes HTP512A - HTP515A - HTP520A - HTP525A open holes close holes Now, adjust the burner according to the actuator model provided. Settings by means of Berger STM30.. actuator set GAS fuel by means of the burner CM switch (it is placed on the burner control panel) Berger STM30 SQM40.265 CSW Actuator cams High flame...
  • Page 29 Siemens VGD.. To adjust the air flow rate in the high flame stage, loose the RA nut and screw VRA as to get the desired air flow rate: moving the rod TR towards the air damper shaft, the air damper opens and consequently the air flow rate increases, moving it far from the shaft the air damper closes and the air flow rate decreases.
  • Page 30 Fully modulating burners To adjust the fully-modulating burners, use the CMF switch on the burner control panel (see next picture), instead of the TAB thermo- stat as described on the previous paragraphs about the progressive burners. Go on adjusting the burner as described before, paying attention to use the CMF switch intead of TAB.
  • Page 31 Calibration of air pressure switch To calibrate the air pressure switch, proceed as follows: Remove the transparent plastic cap. Once air and gas setting have been accomplished, startup the burner. During the pre-purge phase o the operation, turn slowly the adjusting ring nut VR in the clockwise direction until the burner lockout, then read the value on the pressure switch scale and set it to a value reduced by 15%.
  • Page 32 Adjusting light oil flow rate The light 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 on Fig. 15-Fig. 32 (as far as reading the pres- sure values, see next paragraphs).
  • Page 33   Fig. 16...
  • Page 34 FLUIDICS KW3...45° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar)
  • Page 35 FLUIDICS KW3...45° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar)
  • Page 36 FLUIDICS KW3...45° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar)
  • Page 37 FLUIDICS KW3...60° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar)
  • Page 38 FLUIDICS KW3...60° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar)
  • Page 39 FLUIDICS KW3...60° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the...
  • Page 40 FLUIDICS NOZZLE: REFERENCE DIAGRAM (INDICATIVE ONLY) Atomisation angle FLOW RATE kg/h Indicative DIMENSIONS pessure on return (bar) Pressure on return (bar) Pressure on return (psi) Up to 100kg/h Over 100kg/h Flow rate NOZZLE SUPPLY PRESSURE = 25 bar Tab. 1 - - - - - Atomisation angle according to the return pressure ̶...
  • Page 41 Oil Flow Rate Settings by means of Berger STM30.. actuator Once the air and gas flow rates are adjusted, turn the burner off, switch it on again by turning the CM switch to the oil operation (OIL, on the burner control panel). with the electrical panel open, prime the oil pump acting directly on the related CP contactor (see next picture): check the pump motor rotation and keep pressing for some seconds until the oil circuit is charged;...
  • Page 42 Pressure gauge port Fig. 18 Fig. 19 10 in order to get the maximum oil flow rate, adjust the pressure (reading its value on the PG pressure gauge) without changing the air flow rate set during the gas operation adjustments (see previous paragraph): checking always the combustion parameters, the adjustment is to be performed by means of the SV2 adjusting cam screw (see picture) when the cam has reached the high flame position.
  • Page 43 Oil pressure switch adjustment Follow the below instruction, according to the pressure switch installed. HEX6 HEX6 A - Range (Stop pressure) B - Differential NB: Remove lockplate (C) before adjustment Danfoss KP.. Trafag Picostat 9B4.. Maximum oil pressure switch The oil pressure switch on the return line, checks that the pressure does not exceed a default value. This value must not be higher than the maximum acceptable pressure on the return line (this value is reported on the specification table).
  • Page 44 Oil circuit The fuel is pushed into the pump 1 to the nozzle 3 at the delivery pressure set by the pressure governor. The solenoid valve 2 stops the fuel immission into the combustion chamber. The fuel flow rate that is not burnt goes back to the tank through the return circuit. The spill-back nozzle is feeded at constant pressure, while the return line pressure is adjusted by means of the pressure governor controlled by an actuator coupled to an adjusting cam.
  • Page 45 Oil circuit (HTP525A) The fuel is pushed into the pump 1 to the nozzle 3 at the delivery pressure set by the pressure governor. The solenoid valve 2 stops the fuel immission into the combustion chamber. The fuel flow rate that is not burnt goes back to the tank through the return circuit. The spill-back nozzle is feeded at constant pressure, while the return line pressure is adjusted by means of the pressure governor controlled by an actuator coupled to an adjusting cam.

  • Page 46: Limitations Of Use

    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 47 Light oil operation The fan motor starts and the pre-purge phase as well. Since the pre-purge phase must be carried out at the maximum air rate, the control box drives the actuator opening and when the maximum opening position is reached, the pre-purge time counting starts. At the end of the pre-purge time, the actuator is in the light oil ignition position: the ignition transformer is energised (lamp L on);...

  • Page 48: Routine Maintenance

    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 49 Removing the combustion head Remove the top H. Remove the UV detector out of its housing: disconnect electrode cables and the light oil flexible hoses. Loosen the screws V holding the gas manifold G, loosen the two connectors E and remove the assembly as shown. Clean the combustion head by means of a vacuum cleaner;...
  • Page 50 Adjusting the electrodes position Adjust the electrodes position, according to the quotes shown on the next picture.   Keys electrodes air pipe ignition gas pipe nozzle Fig. 28 Рис. 29 Replacing the spring in the gas valve group To replace the spring in the gas valve group,proceed as follows: Carefully twist the protection cap 1 and the O-ring 2.
  • Page 51 Checking the detection current To check the detection signal follow the scheme in the picture below. If the signal is less than the value indicated, check the position of the detection electrode or detector, the electrical contacts and, if necessary, replace the electrode or the detector. Control box Minimum detection signal 70µA with UV detector)
  • Page 52 TROUBLESHOOTNG GUIDE - Gas operation * No electric power supply * Wait until power supply is back * Main switch open * Close the switch * Thermostats open * Check set points and thermostat connections * Bad thermostat set point or broken thermostat * Set or replace the thermostat * No gas pressure * Restore gas pressure...
  • Page 53 TROUBLESHOOTNG GUIDE - Light oil operation * No electric power supply * Wait for electric power supply is back * Main switch open * Close the switch * Thermostats open * Check set points and thermostat connections * Bad thermostat set point or broken thermostat * Set or replace the thermostat * No gas pressure * Restore gas pressure...

  • Page 55: Wiring Diagrams

    WIRING DIAGRAMS Refer to the attached wiring diagrams. WARNING 1 - Electrical supply 230V / 400V 50Hz 3N a.c. 2 - Do not reverse phase with neutral 3 - Ensure burner is properly earthed...
  • Page 60 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 61 LME73.000Ax + PME73.831AxBC LME73.831AxBC Service instruction manual M12921CB Rel.1.2 02/2016...
  • Page 62 GENERAL FEATURES LME/ is suitable for gas, light and heavy oil burners LME7 series has two devices: LME73.000 (hardware) and PME73.831AxBC (programmable unit). The LME73.831AxBC is also available: it has a built in software and it isa not programmable. LME7 is inside the control panel. If supplied, PME73.831BC is inside the LME7; The display AZL23..
  • Page 63 User interface : Button A - Display preset output - In lockout position: Power value to the time of fault Info and Enter button - Reset in the event of fault, changeover visual diagnostic of the cause of fault (refer to chapter Diagnostics of cause of fault ) - button - Display flame signal current 2 or phases display - In lockout position: MMI phase to the time of fault...
  • Page 64 List of phase display on board LME : Phase number of Function 7-segment display Standby Standby, waiting for heat demand Mains ON / test phase (e.g. detector test) Startup Yellow Safety valve ON, air pressure switch test / POC test (timeout / locking Yellow Fan motor ON / air pressure switch test / settling time Yellow...
  • Page 65 Operation : The lockout reset button (info button) (EK) is the key operating element for resetting the burner control and for activating / deactivating the diagnostics functions. The multicolor signal lamp (LED) is the key indicating element for visual diagnostics. Both lockout reset button (EK) and signal lamp (LED) are located in the control panel.
  • Page 66 Program sequence : Version 1: • Ignition load < low-fire • Prepurging in high-fire • Parameter 515 = 1 (condition parameter 259.01 > 0 seconds)
  • Page 67 Program sequence : Version 2: • Ignition load > low-fire • Prepurging in high-fire • Parameter 515 = 1 (condition parameter 259.01 = 0 seconds)
  • Page 68 Phase Function number Lockout phase Standby, waiting for heat demand Operation, modulating operation Interval until release of load controller target (analog or 3-position step input) Under voltage Safety loop open Extraneous light on burner startup (timeout/locking after 30 seconds) Mains ON/test phase (e.g. detector test) Shutdown, actuator opens in CLOSE position (homerun) Safety valve ON, air pressure switch OFF, actuator opens in CLOSE position Part 1: Fan motor ON...
  • Page 69 Error code table : Red blink code of fault signal lamp (LED) Possible cause 2 x blinks No establishment of flame at the end of the safety time (TSA) - Faulty or soiled flame detector - Faulty or soiled fuel valves - Poor adjustment of burner, no fuel - Faulty ignition equipment 3 x blinks...
  • Page 70 Flame detection – detection electrode : Short-circuit current Max. AC 1 mA Required detector current Min. DC 2 μA, display approx. 45 % Possible detector current Max. DC 3 μA, display approx. 100 % Permissible length of detector cable (laid separately) 30 m (core-earth 100 pF/m) Measuring circuit Keys...
  • Page 71 Gas proving system : Valve proving is dependent on input valve proving ON / OFF (X2-02). When a leak is detected, the gas valve proving function ensures that the gas valves will not be opened and that ignition will not be switched on. Lockout will be initiated. Valve proving with separate pressure switch (P LT) Step 1: td4 –...
  • Page 72 Instruction, control and modify via AZL2x : The AZL2x.. display/programming unit is shown below: The keys functions are the following: Key F + A While pressing the two keys contemporarly, the code message will appear: by entering the proper password it is possible to access the Service mode. Info and Enter keys Used for Info and Service menues Used as Enter key in the setting modes...
  • Page 73 The display will show these data: Lock+unlock codes Flame Open valves Ignition transformers energised Fan motor energised Oil pre-heater energised Plant heat request Parameter setting mode Info mode Service mode Closing actuator Opening actuator Unit measure While pushing the button together with whatever else button, LME73 locks out; the display shows On stand-by position, appears On operation, all the phases appears with their number.
  • Page 74 List of phase with display AZL2x : Phase number Function Standby Standby, waiting for heat request Ph08 Power ON / test phase (e.g. detector test) Startup Ph21 Safety valve ON, air pressure switch test / POC test (timeout / locking after 5 seconds), actuator opens in low-fire position / CLOSE position Ph22 Fan motor ON or air pressure switch test / settling time...
  • Page 75 Error code list with operation via internal AZL : Error code Clear text Possible cause Loc 2 No establishment of flame at the - Faulty or soiled fuel valves end of the safety time (TSA) - Faulty or soiled flame detector - Poor adjustment of burner, no fuel - Faulty ignition equipment Loc 3...
  • Page 76 Entering the Parameter levels: y means of a proper use of the keys, it is possible to enter the various level parameters, as shown in the following flow chart :...
  • Page 77 Info level : Keep pushing the button until appears. Use + or - for scrolling the parameter list. If on the right side a dash-dot appears, it means the display doesn't show the full description. Push again for 1 to 3 s in order to show the full description. Below the visible Info parameters: Parameter Parameter list...
  • Page 78 Service level : Keep pushing the button until appears. Use + or - for scrolling the parameter list. . If on the right side a dash-dot appears, it means the display doesn't show the full description. Push again for 1 to 3 s in order to show the full description. Below the visible Info parameters: Parameter Parameter list...
  • Page 79 Process data Normalized speed Read only 100% 0.01 % Service Mains voltage Read only LME73.000A1: Service 175 V LME73.000A2: 350 V Flame intensity Read only 100% Service...
  • Page 80 Parameter level (Heating engeneering) : This level lets the engineer to modify some burner parameters. It is protect with a 4 digit password (SO level) and a 5 digit password (OEM level) Password input : push F and A buttons together until the display shows "code" and 7 underlines. The left one flashes. By move the flashing underline until it is on the desired position and push "enter".
  • Page 81 Repetition in the event of loss of flame during operation Edit 0 SO 0 = None 1 = None 2 = 1 x Repetition 241.00 Valve proving Edit 1 SO 0 = Off 1 = On 241.01 Valve proving Edit 0 SO 0 = During prepurge time (t1) 1 = During postpurge time (t8)
  • Page 82 Power setting Analog input (feedback potentiometer ASZxx.3x required) Edit 0 SO 0 = 3-position step input 1 = 0...10 V 2 = 0...135 Ω 3 = 0...20 mA 4 = 4...20 mA with lockout at I <4 mA 5 = 4...20 mA WARNING Parameter Num.
  • Page 84 Note: Specifications and data subject to change. Errors and omissions excepted.

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