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Imesa MCM 2500 - User Manual

Imesa MCM 2500
33 pages
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MANCANZA FIAMMA /NO FLAME (E140901X) 1 di/of 33
Sommario
1. VERIFICHE CHE PUO’ FARE IL CLIENTE FINALE ......................................................................... 2
2. INTERVENTO SUL POSTO DA PARTE DEL TECNICO ................................................................. 2
3. GAS: VERIFICHE DI PRESSIONE E DI PORTATA ......................................................................... 2
3.a VERIFICA PRESSIONE INGRESSO (PRESSIONE STATICA). ..................................................... 2
3.b VERIFICA PRESSIONE IN USCITA (PRESSIONE DINAMICA) ..................................................... 4
3.c. VERIFICA CADUTA DI PRESSIONE IN CONDOTTA (PORTATA INSUFFICIENTE) ................... 5
4. ARIA: VERIFICA IMMISSIONE ARIA E ED ESPULSIONE .............................................................. 7
4.a VERIFICA ARIA PRIMARIA ............................................................................................................. 8
4.b VERIFICA ARIA SECONDARIA ....................................................................................................... 8
4.c VERIFICA E PULIZIA BRUCIATORI ................................................................................................ 9
4.d VERIFICA E PULIZIA VENTILATORI E PULIZIA CANNA FUMARIA ........................................... 11
5. CONTROLLI ELETTRICI ................................................................................................................. 12
5.a MCA ................................................................................................................................................ 12
5.b MCM (IM7 & PLC) .......................................................................................................................... 15
6. SE NON SI RISOLVE IL PROBLEMA (STORICO ALLARMI) ........................................................ 17
Summary
1. CHECKS THE END USER CAN DO BY ITSELF ............................................................................ 18
2. INTERVENTION ON SITE BY THE TECHNICIAN ......................................................................... 18
3. GAS: PRESSURE AND CARRYING CAPACITY............................................................................ 18
3.a INPUT PRESSURE CHECK (STATIC PRESSURE). .................................................................... 18
3.b CHECK OUTLET PRESSURE (DYNAMIC PRESSURE) .............................................................. 19
3.c CHECKING THE PIPELINE’S PRESSURE DROP (LOW FLOW) ................................................. 21
4. AIR: VERIFICATION AND AIR INTAKE AND EXHAUST ............................................................... 23
4.a PRIMARY AIR CHECK ................................................................................................................... 24
4.b SECONDARY AIR CHECK ............................................................................................................ 24
4.c BURNERS INSPECTION AND CLEANING ................................................................................... 25
4.d INSPECTION AND CLEANING OF CHIMNEY AND FANS ........................................................... 27
5. ELECTRIC CHECKS ....................................................................................................................... 28
5.a MCA ................................................................................................................................................ 28
5.b MCM (IM7 & PLC) .......................................................................................................................... 31
6. IF THE PROBLEM CAN’T BE SOLVED .......................................................................................... 33

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Questions and Answers

  • A
    allendanaAug 16, 2025
    Why is my Imesa Dryer leaving clothes wet?
    • D
      Denise ElliottAug 16, 2025
      If the Imesa Dryer isn't drying laundry adequately, and items are still damp after a cycle, check several components. For gas-heated machines, confirm the gas pressure and calorific value (PCI) match the specifications on the machine's data plate. For steam-heated units, ensure the steam pressure aligns with the data plate and the condensate drain is working efficiently. Also, verify that the humid air exhaust system is correctly installed, the exhaust ducts are clean, and the exhaust fan rotates in the proper direction. Make sure the safety thermostat hasn't tripped due to overheating, and check the inverter IB for faults, replacing it if necessary.
  • K
    Kristen WilliamsAug 19, 2025
    What to do if the Imesa Dryer temperature goes too high?
    • M
      Michael SimmonsSep 12, 2025
      If the temperature on the Imesa Dryer display exceeds 220°C, it indicates overheating. This could be due to several reasons: the temperature, speed, and residual moisture of the fabrics might be creating conditions too close to the safety temperature probe's intervention threshold. The temperature probe component might be faulty, so check its continuity and replace it if necessary. If it is an electric machine, one or both contactors feeding the heating elements might be blocked, or one or more fuses could be blown. For gas-heated machines, the gas valve may be stuck open, or the flame control unit may be continuously signaling for heat. For steam-heated machines, the steam hose may be stuck in a fully open position. Ensure the gas or steam supply pressure matches the required levels.
  • B
    brownkellyAug 22, 2025
    What does AL3 error mean on Imesa Dryer?
    • J
      Jamie BakerAug 22, 2025
      If the Imesa Dryer displays the error message 'AL3' or 'ALLARME SONDA GUASTA', it means there is a faulty probe alarm. This can be caused by the temperature probe's passive component being short-circuited, in which case, you should replace the probe. It can also happen if the probe wires are short-circuited due to wiring issues, so you should restore the wiring.
  • T
    tallenAug 26, 2025
    What does AL5 error mean on Imesa Dryer?
    • R
      Rebecca AriasAug 26, 2025
      If the Imesa Dryer displays the error message 'AL5' or 'TERMICA MOTORE', it indicates a motor thermal issue. Verify if any of the motor thermal contacts have opened. Check the thermal cutout calibration (request the value from the manufacturer), reset the tripped thermal cutout, and check the fan motor's current draw (request the value from the manufacturer); replace the fan if necessary. Also, ensure the humid air extraction fan's power contactor is functioning correctly, closing the contact L2 on T2 upon startup; replace the contactor if it is not working.
  • R
    rhondawoodsAug 28, 2025
    What does AL4 error mean on Imesa Dryer?
    • D
      Dawn WoodAug 28, 2025
      If the Imesa Dryer displays the error message 'AL4' or 'CENTRALINA GAS' (only for gas-heated machines), inspect the gas system. Check if the gas type matches what is listed on the machine's nameplate. Ensure the gas pressure downstream from the valves is correct according to the reference tables. Clean the nozzles if needed. Verify the igniters are correctly positioned and fully exposed to the flame. Check the heating signal output from the flame control units, referring to the electrical diagram.
  • A
    Amanda GonzalezAug 31, 2025
    Why does the flame control unit always lock out on my gas-heated Imesa Dryer?
    • D
      Daniel TuckerAug 31, 2025
      If, in a gas-heated Imesa Dryer, the flame control unit continuously locks out despite gas ignition, verify the phase and neutral connections are in the correct positions. Also, ensure the ground connection is properly made and the ignition electrodes are correctly positioned, with a sufficiently large spark (at least 4-6 mm).
  • L
    lopezsydneySep 3, 2025
    What does AL6 error mean on Imesa Dryer?
    • I
      Ian WilliamsSep 3, 2025
      If the Imesa Dryer displays the error message 'AL6' or 'PRESSIONE GAS', verify that gas is present and available at the expected pressure, both upstream and downstream of the valve during operation.
  • F
    Frederick MooreSep 6, 2025
    Why won't the electric heating switch engage on my Imesa Dryer?
    • C
      Cindy FloresSep 6, 2025
      If the 'electric heating' switch does not engage on an Imesa Dryer (electric heating machines only), check if one or both contactors are working correctly, and that their contacts are not stuck. Also, check that none of the three phase control relays has a stuck contact.
  • J
    Joseph ScottSep 9, 2025
    Why isn't the flame control unit igniting on my gas-heated Imesa Dryer?
    • S
      stevenleachSep 9, 2025
      If, for a gas-heated Imesa Dryer, the flame control unit does not activate ignition even when the current temperature is below the set point, verify if the air pressure switch changes state when the smoke fan is activated. If it does not, check the smoke exhaust and its draft.
  • M
    mhubbardSep 12, 2025
    What to do if the red RESET light won't turn off on my Imesa Dryer?
    • A
      Angela DuranSep 12, 2025
      If the red RESET light on the right side of the Imesa Dryer does not turn off, even when pressing the RESET button, check if the limit switches of all safety devices are efficient and functioning correctly. Also, check if the fuse of the safety control unit power line is working, and ensure the safety control unit itself is efficient and functioning correctly.

Imesa MCM 2500 Specifications

General IconGeneral
BrandImesa
ModelMCM 2500
CategoryControl Systems
LanguageEnglish

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