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Serie COMIST N

Technical and functional features

  • Dual fuel natural gas/heavy oil burners.
  • Two-stage operation (high/low flame).
  • Compatible with any type of combustion chamber.
  • Air-gas mixing at blast-pipe and high pressure mechanical atomisation of fuel using nozzle.
  • Ability to obtain optimal combustion values by regulating combustion air and blast-pipe.
  • Maintenance facilitated by the fact that the mixing unit and the atomisation unit can be removed without having to remove the burner from the boiler.
  • Air flow regulation for first and second stage by means of electric servomotor with pause closure of gate to prevent any heat dispersion to flue.
  • Equipping for automatic fuel switching.

COMIST 72 N

  • Ability to link the gas burner train to valves seal control device.
  • Comes with 2 flexible oil pipes, 2 nozzles, 1 oil filter, 1 flange and 1 insulating seal to connect the burner to the application.

COMIST 122 N - COMIST 180 - 250 - 300 NM

  • Tightness gas valve control, EN676.
  • Comes with 2 flexible oil pipes, 2 nozzles (only COMIST 122), 1 oil filter, 1 flange and 1 insulating seal to connect the burner to the application. Nozzle must be ordered separately for COMIST 180/250/300..

Design features

  • Light aluminium alloy fan part.
  • High performance centrifugal fan.
  • Combustion air inlet with device to adjust the air flow.
  • Sliding boiler coupling flange to adapt the head protrusion to the various types of boilers.
  • Adjustable blast-pipe with stainless steel nozzle and deflector disk in steel.
  • A three-phase electric motor to run fan and another to run the pump.
  • Air pressure switch to ensure the presence of combustion air.
  • Sequence controller - EN 298..
  • Ultra Violet cel flame scanner.
  • Control panel comprising stop/go switch, 1st/2nd stage selector, fuel change switch, and operation, block, pre-heating resistors on and fuel used indicator.
  • Terminal block for the electrical and thermostatic connections to the burner and to control the second stage of working.
  • Electrical plant protection rating IP40.

COMIST 72 N

  • Gas train complete with operation and safety valve, minimum pressure switch, pressure regulator and gas filter.
  • Gear pump with pressure regulator, fuel stop-cock valve and safety valve.
  • Atomisation unit with nozzle-closing pin.
  • Electrical fuel preheater comprising antigas valve, filter, thermometer and minimum and regulation thermostat.

COMIST 122 N - COMIST 180 - 250 - 300 NM

  • Gas train complete with operation and safety valve, valves seal control, minimum pressure switch, pressure regulator and gas filter.
  • Gear pump with pressure controller (fuel on/off valve and safety valve for COMIST 122 only).
  • Spray nozzle unit with closing pin on nozzle for COMIST 122; spray nozzle unit with magnet for controlling nozzle delivery/return pins for COMIST 180 - 250- 300.
  • Electrical fuel preheater comprising antigas valve, filter, thermometer and minimum and regulation thermostat.
Code Name Minimum capacity (kW) Maximum capacity (kW)
55380010 COMIST 72 N 50Hz 348.00 916.00
55410010 COMIST 122 N 50Hz 652.00 1364.00