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baltur COMIST 180 NM Instructions Manual
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baltur COMIST 180 NM Instructions Manual

baltur COMIST 180 NM Instructions Manual

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- Instruction for burners model
COMIST 180 NM
COMIST 250 NM
COMIST 300 NM
2003/11
Edition
Cod. 0006080810

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Summary of Contents for baltur COMIST 180 NM

  • Page 1 - Instruction for burners model COMIST 180 NM COMIST 250 NM COMIST 300 NM 2003/11 Edition Cod. 0006080810...
  • Page 3 We hereby declare that our gas, light oil, heavy oil, and combination (gas/light oil or gas/heavy oil) burners are manufactured in conformance with current CE, CEI and UNI standards. • BALTUR guarantees the “CE” certification provided that the burner is coupled to the “CE” gas train supplied by BALTUR and the “CE” gas line accessories (on request).
  • Page 4 INDEX PAGE Technical characteristics ........................“ Application of the burner to the boiler ....................“ Electrical connections - Low pressure gas supply system ..............“ Medium pressure gas supply system ..................... “ Fuel supply system (fuel oil) - Specific instructions for igniting a mixed fuel burner ......“ Description of operation with fuel oil ......................

  • Page 5: Technical Specifications

    N° 0002570121 TECHNICAL SPECIFICATIONS n° 1 of 3 CARATTERISTICHE TECNICHE MODELLO / MODEL / MODELO TECHNICAL DATA COMIST COMIST COMIST CARACTERÍSTICAS TÉCNICAS 180 NM 250 NM 300 NM POTENZA TERMICA / THERMIC CAPACITY / 1981 3380 3878 POTENCIA TÉRMICA 1127 1304 m³/h PORTATA / FLOW RATE / CAUDAL...

  • Page 6: Component List

    N° 0002570121 COMPONENT LIST n° 2 of 3 11 - Valvola funzionamento Pompa Servomotore regolazione aria 12 - Pressostato controllo tenuta valvole gas Quadro elettrico 13 - Flangia attacco bruciatore Motore ventola 14 - Guarnizione isolante Vite regolazione aria alla testa di combustione 15 - Testa di combustione Serbatoio preriscaldatore...
  • Page 7 Mod. 915 465 450 1225 450 775 485 1700 330 540 260 245 DN65 400 M20 300 COMIST 180 NM COMIST 250 NM 1025 545 480 1255 580 675 385 1750 320 500 320 273 DN65 490 M20 340 COMIST 300 NM 1025 545 480 1260 580 680 385 1750 320 500 320 273 DN65 490 M20 350 CAMPO DI LAVORO - WORKING FIELD - RANGO DE TRABAJO N°...
  • Page 8 APPLICATION OF THE BURNER TO BOILER for mod. COMIST 180 1 - Boiler plate 2 - Insulating gasket 3 - Burner fixing flange 4 - Stud bolt 5 - Locking nut with washer 6 - Burner flange fixing screw APPLICATION OF THE BURNER TO BOILER for mod. COMIST 250 - 300 1 - Boiler plate 2 - Insulating gasket 3 - Burner fixing flange...

  • Page 9: Electrical Connections

    ELECTRICAL CONNECTIONS It is advisable to make all connections with flexible electrical wire. The electrical lines must be kept away from hot parts. Make sure that the voltage and frequency of the electrical power supply to which the equipment is to be connected is suitable for the burner. Make sure that the electrical power supply, the relative fuse switch (essential) and possible limiting device, can take the maximum current absorbed by the burner.
  • Page 10 FLOW (m /h) METHANE GAS (d = 0,85) IN N° BT 1387 COMMERCIAL GAS PIPES (UNI 3824-68) LOAD LOSS MAX. 5 mm.W.C. PORTATA / FLOW / DEBIT / DURCHSATZ / CAUDAL DIAGRAM FOR CALCULATING THE DIAMETER OF THE PIPES IN N°...
  • Page 11 MEDIUM PRESSURE GAS SUPPLY SYSTEM (see BT 8058 - BT 8530/1 - BT 8531/1) When a high delivery is required, the Gas Supply Company requires a unit with a pressure reducer and meter to be installed, and provides a connection to the medium pressure gas supply (several bars). This unit can either be supplied by the Gas Supply Company or the User according to Gas Supply Company specifications.
  • Page 12 DIAGRAM OF CONNECTING MORE THAN ONE N° BT 8530/1 BURNER TO THE GAS PIPE NETWORK AT AVERAGE PRESSURE 1 - Measuring and reducing unit 2 - Interception 3 - Filter 4 - Reducer 5 - Meter 6 - Emergency interception (installed outside) 7 - Ball cock 8 - Filter 9 - Final reducer or stabilizer...
  • Page 13 FUEL-FED SYSTEMS (FUEL OIL) The burner pump must receive fuel from a suitable feed circuit with an auxiliary pump equipped with a pressure regulator adjustable between 0.2 and 1 bar. The fuel must be pre-heated to a temperature of 50 - 60°C. In this case the pressure of fuel feed to the burner pump (0.2 - 1 bar) must not vary whether the burner is stopped or working at maximum fuel delivery required by the boiler.
  • Page 14 MAIN HYDRAULIC DIAGRAM TO FEED WITH PRESSURE SEVERAL BURNERS AT TWO FLAMES N° 0002901120 OR MODULATING ONES OPERATING AT LIGHT OIL REV.: 19/02/2002 OR FUEL OIL WITH MAX. NOMINAL VISCOSITY OF 5°E AT 50 °C The light oil recovery tanks (diameter ~ 150 - height ~ 400) should be installed as near as possible to the burner and should be about 0,5 m.
  • Page 15 DESCRIPTION OF OPERATION WITH FUEL OIL (see BT 8713/1) During the fuel oil pre-heating phase, current passes through the pre-heater regulating thermostat and reaches the remote switch coil of the heating elements. The remote switch closes and provides current to the pre-heater heating elements which heat the fuel contained in it.
  • Page 16 NB: The burner is fitted with an air pressure switch, which does not allow the pump motor to run if the pressure of the combustion air supplied by the fan, does not reach the pressure switch setting. The air pressure switch must be adjusted with burner ignition, according to the pressure value obtained for operation with the 1 flame.
  • Page 17 DIAGRAM OF A DISMANTLED (CB) N° BT 9353/1 CHARLES BERGONZO NOZZLE (WITHOUT PIN) BALTUR PUMP MODEL BT..N° 0002900580 1/4” Vacuum-meter connection Suction Return Pump plate Delivery (nozzle) Pump pressure 1/4” Pressure gauge connection regulation (20 ÷ 22 bar) Heating element seal 1/4”...
  • Page 18 REGULATION DEVICE HEAVY OIL BT...DSNM-D N° BT 8716 IDENTIFICATION DIAGRAM Backnozzle thermostat (TRU) Enter plugs to the regulation screw 10 ÷ 12 bar 1st flame pressure regulator 2nd flame udually opened electrovalve = Opened = 1st flame switched on regolator Closed = 1st flame switched off regulator Tie-down point pressure...
  • Page 19 DESCRIPTION OF OPERATION WITH GAS (METHANE) (see BT 8710/1) The burner command and control (cycle relay) equipment is turned on by means of the switch on the control panel ( I). Control box Specifications Control box Safety Preventilation / Preignition Postignition Time between 1st flame and relative...
  • Page 20 IGNITION AND REGULATION WITH FUEL OIL 1) Make sure that the nozzle’s characteristics (delivery and spray angle) are suitable for the furnace (see BT 93531). Otherwise, replace it with another suitable nozzle. 2) Make sure there is fuel in the tank and that, at least visually, it is suitable for the burner. 3) Make sure there is water in the boiler and that the system’s gate valves are open.
  • Page 21 17) The minimum thermostat closes when the fuel in the pre-heater reaches the set temperature. Closing of the minimum thermostat does not cause the burner command and control unit to be activated immediately. This unit is activated by the regulation thermostat (switching contact) when it turns off the heating elements due to the fuel reaching the temperature set on the regulating thermostat.

  • Page 22: Installation

    ADJUSTING THE GAP BETWEEN DISC AND NOZZLE The burners are fitted with a device that allows the gap between the disc and the nozzle to be adjusted. The gap between the disc and the nozzle is factory set, and must only be reduced if the cone of atomised fuel at the nozzle outlet wets the disc, resulting in fouling.
  • Page 23 REGULATION When the boiler has reached a sufficient pressure, the gate valve is opened to allow the steam to flow to the oil heater. The air discharge gate valve on the condensation outlet piping must be opened slightly. While the steam is being discharged from the slightly open gate valve, the pressure regulator is set to a value allowing the fuel oil to be heated to a temperature a little higher (about 10 - 15°...
  • Page 24 IGNITION AND REGULATION WITH GAS (METHANE) N.B. See the last pages for a specific description of the procedure for regulating the gas supply according to the type of valve fitted to the burner. 1) Make sure the combustion head enters the furnace as far as that required by the boiler manufacturer. Make sure that the device which shuts off the air to the combustion head is in the right position to deliver the required fuel (the air gap between the disc and the head must be considerably reduced for low fuel delivery.
  • Page 25 15) Then turn off the switch to ignite the burner. When the burner is lit, with the second flame, immediately check the gas supply, first visually and then by reading the meter. Depending on these checks, gas delivery can be adjusted, if necessary, to the value required in each specific case (boiler power), remembering that methane develops 8550 kcal/m .
  • Page 26 REGULATION OF AIR AT THE COMBUSTION HEAD (see BT 8608/1) The combustion head is fitted with a regulation device that closes (moves forward) or opens (moves back) the air gap between the disc and the head. In this way, when the gap is closed high pressure can be obtained upstream of the disc, even with low delivery.

  • Page 27: Using The Burner

    USING THE BURNER The burner operates completely automatically; when the main switch and that on control panel are turned off, the burner is turned on. The burner is operated by the command and control devices, as described in the chapter “Description of operation”.
  • Page 28 GENERAL DIAGRAM AIR REGULATION N° BT 8608/1 INCORRECT REGULATION Combustion head Air flow large opening Combustion air inlet with very locked shutter Control and fixing knobs of combustion head CORRECT REGULATION Combustion head Air flow quite locked. Attention: Avoid complete locking Combustion air inlet with air shutter sensibly open Control and fixing knobs of combustion head...
  • Page 29 N° 8653-1 SQN 30.111 A3500 rev. 09/04/87 PREVENTILATION WITH AIR OPEN (2nd FLAME POSITION) AIR CLOSED WITH BURNER IN STOP POSITION 1 - 2 Flame valve connection cam (must be adjusted in a position between the 1 flame and the 2 flame cam) 2 - Air regulation cam 1°...

  • Page 30: Operating Principle

    N° 8877-GB INSTRUCTIONS FOR SETTING DUNGS GAS VALVES mod. ZRDLE Rev. 06/11/90 OPERATING PRINCIPLE This valve has two open positions and is equipped with a regulator. The regulator sets the hydraulic brake activation point which, in turn, causes rapid release of the opening first stage.
  • Page 31 INSTRUCTIONS FOR SETTING DUNGS GAS N° 8875-GB VALVES mod. MVD ... and MVDLE ... Rev. 06/11/90 Mod. MVD..The MVD gas valves open and close rapidly. To regulate the gas flow, unscrew and remove cap “A” and loosen nut “B”. Then, using a screwdriver turn screw “C”.
  • Page 32 INSTRUCTIONS FOR SETTING LANDIS & GYR N° 8880 mod. SKP 10.110 B27 - SKP 10.111B27 Rev. 06/11/90 SINGLE STAGE GAS VALVES DESCRIPTION OF HOW THE VALVE OPERATES Single-stage valves When the valve receives the signal to open, the pump cuts in and the magnetic valve closes. The pump transfers the oil from under the piston to above it, forcing the piston downward, which compresses the closure return spring with the rod and plate.
  • Page 33 INSTRUCTIONS FOR SETTING LANDIS & GYR N° 8881 mod. SKP 10.123A27 TWO STAGE GAS VALVES Rev. 06/11/90 DESCRIPTION OF HOW THE VALVE OPERATES Servomotor The hydraulic control system consists of a cylinder filled with oil and an oscillating pump with thrust piston. There is also a solenoid valve located between the intake chamber and the pump thrust chamber which serves to close the valve.
  • Page 34 INSTRUCTIONS FOR HONEYWELL GAS N° 0002910370 VALVES UNIVERSAL GAS VALVES TYPE: VE Rev. 25/06/96 4000A1 (..A ..= Opening - Closure, rapid) The VE 4000A1 valves are Class A solenoid valves, normally closed. They may be used as ON/OFF valves in the supply trains with Natural Gas, Manufactured Gas or GPL, on burners or combustion installations.
  • Page 35 N° 7451 CONTROL BOX FOR LFL 1... SERIES 02 GAS BURNERS Rev. 10/1997 Control box for burners of average and high power, with forced draught, intermittent service (*), 1 or 2 stages, or modulating types, with supervision of the air pressure for controlling the air damper. This control box bears the EC mark, in accordance with the Gas and Electromagnetic Compatibility Directive.
  • Page 36 N° 7451 CONTROL BOX FOR LFL 1... SERIES 02 GAS BURNERS Rev. 10/1997 Electrical connections The burner manufacturer’s diagram is valid for the relief valve connections. LEGEND For the entire catalogue sheet QRA.. UV probe Limit switch commutation contact for air damper Thermostat or pressure probe OPEN position Fuel valve with continuous regulation...
  • Page 37 N° 7451 CONTROL BOX FOR LFL 1... SERIES 02 GAS BURNERS Rev. 10/1997 Notes on the programmer Programmer sequence Output signals on terminal Times Legend time (50 Hz) in seconds 31.5 ..t1 Pre-ventilation time with air damper open 3 ....t2 Safety time - ....
  • Page 38 N° 7451 CONTROL BOX FOR LFL 1... SERIES 02 GAS BURNERS Rev. 10/1997 t2', t3', t3': These times are valid only for series 01 or LFL1.335, LFL1.635, LFL1.638 burner control and command equipment. They are not valid for types of Series 032, since they involve simultaneous activation of cams X and VIII. Working The above diagrams illustrate both the connection circuit and the sequencer mechanism control program.
  • Page 39 N° CONTROL BOX FOR LFL 1..SERIES 02 GAS BURNERS Rev. 10/1997 Control program in the event of stopping, indicating position of stop As a rule, in the event of any kind of stop, the fuel flow is cut off immediately. At the same time, the programmer remains immobile, as does the switch position indicator.
  • Page 40 LDU 11.. GAS VALVE TIGHTNESS CONTROL EQUIPMENT LDU 11 equipment is used to verify tightness of valves on natural gas burners. The LDU 11 combined with a normal pressure switch automatically verifies tightness of natural gas burners valves, before every start up and immediately after each stop. Tightness control is carried out by two-stage verification of gas circuit pressure in the section between the two burner valves.
  • Page 41 LDU 11.. GAS VALVE TIGHTNESS CONTROL EQUIPMENT Control programme Putting control circuit under atmospheric pressure 7,5s Time between start-up and energizing of main “AR” relay 22,5s 1st verification stage at atmospheric pressure Putting control circuit gas under pressure 27,5s 2nd verification stage at gas pressure 67,5s Total time of tightness control, up to burner operation consent 22,5s Return of programmer to rest position = fresh verification is enabled remote alarm signalling...
  • Page 48 Via Ferrarese 10 - 44042 CENTO (Ferrara) ITALIA Tel. 051.684.37.11 Fax 051.685.75.27/28 (International Tel. ++39.051.684.37.1 1 - Fax ++39.051.683.06.86) http://www.baltur.it - http://www.baltur.com Technical data in this brochure are given as information only. E-MAIL info@baltur.it Baltur reserves the right to change specification, without notice.

This manual is also suitable for:

Comist 250 nmComist 300 nm