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  • All Aluminum Coils - Good or Bad? - HVAC-Talk
    They to all aluminium to stop formicary corrosion that causes leaks copper coils We don't repair coils because of formicary corrosion All of our coils and systems offer a 10 year parts and labor warranty backed by us and we only install American standard
  • Coil corrosion with spray foamed house - HVAC-Talk
    They attributed the issue to formicary corrosion due to off gassing of VOCs from the spray foam insulation Since my house is completely sealed, including the attic, there is no ventilation and the VOC’s stay concentrated, that’s the theory
  • formicary corrosion | HVAC-Talk: Heating, Air Refrigeration Discussion
    Formicary corrosion occurs in copper and copper alloy coils when oxygen, water and organic acids are present Pretty much all evaporator coils are made with copper coils and aluminum fins Some of the newer products use all-aluminum coils (eg Goodman), copper with tin plating (eg Carrier), copper with zinc plating (eg Nordyne), etc
  • formicary corrosion - HVAC-Talk
    Formicary corrosion occurs in copper and copper alloy coils when oxygen, water and organic acids are present Pretty much all evaporator coils are made with copper coils and aluminum fins Some of the newer products use all-aluminum coils (eg Goodman), copper with tin plating (eg Carrier), copper with zinc plating (eg Nordyne), etc
  • Indoor Coil Corrosion - HVAC-Talk
    Fin Pack Leaks — Formicary Corrosion Indoor coil corrosion failures are an issue in the HVAC industry today Although the occurrence rate of these failures is low nationwide, some geographic areas have experienced higher incidence rates For instance, some homes experience multiple failures while those around them have none Failures are typically characterized by leaks that form in the fin
  • York Evap Coil Replacement Formicary Corrosion - AHRI Matching - HVAC-Talk
    I realize that formicary corrosion is an industry wide problem but some mfg have implemented some sort of solution by either tin coating the copper or moving to an all aluminum coil I'm trying to find another brand but fit AHRI matching might be an issue I'm considering the following would appreciate your thoughts
  • 20+ year old R22 Carrier system leaked - replace with R410a?
    Aluminum coils are completely immune to formicary corrosion, which is why the manufacturers switched to them Leaks in aluminum coils are nearly always due to manufacturing defects with that particular unit, rather than simply being exposed to the home's air over time
  • Widespread Formicary Corrosion Causes? - HVAC-Talk
    Hi there, I'm wondering if anyone else has had or seen cases of massive formicary corrosion in Fan Coil Units and what the ultimate cause may have been I manage the facilities of a number of apartment buildings and we had about 60 FCU's fail in one building I have never had as many fail
  • Formicary Corrosion of the evaporator coil - HVAC-Talk
    Generally Formicary corrosion is more of a bunch of very small holes (pin holes) in the fin pack of the coil, not one leak you can hear If the leak is indeed hearable and it can be determined with a leak detector the area it is in, like a 4x4 area so to speak, then a soap solution should be able to be sprayed on the area to narrow down the location of the leak through looking for bubbles Are
  • Widespread Formicary Corrosion Causes? - HVAC-Talk
    Widespread Formicary Corrosion Causes? Hi there, I'm wondering if anyone else has had or seen cases of massive formicary corrosion in Fan Coil Units and what the ultimate cause may have been I manage the facilities of a number of apartment buildings and we had about 60 FCU's fail in one building I have never had as many fail before





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