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ALL DUCT CLEANING SERVICES trained technicians that will carefully clean and sanitise your air-conditioning heating/cooling coil.

Coil cleaning has become a specialised area of care within air conditioning systems. The coil is in the air flow path on all air conditioning systems. Therefore it has direct effect on the rate of air flow, efficiency of heat transfer and indoor air quality.

Air conditioning cooling coils provide moisture, cool temperature and food from dust, all which are necessary for biofilm growth. The biofilm effects the cooling coil in the following ways:

    • Blockages in the coil. Blockages in the coil decrease the amount of air passing through the system. This in turn will effect the air conditioning systems ability to cool the air. The system tries to compensate for the reduction of cooling efficiency by running the compressor for longer durations. Effective maintenance on the cooling coil provides cost savings in energy consumption.
    • Corrosion of the coil. Biofilms will attach themselves to the fins on the cooling coil. In doing so, they etch into the surface to provide a secure holding. This etching eats away at the cooling coil and over time will degrenerate the cooling coils ability to perform efficient heat transfer. The solution for coil corrosion is to remove biofilm through maintenance. The alternative is to replace the cooling coil, which has a greater cost than coil maintenance.
    • Reduced heat transfer. The presents of the biofilm on the coil surface acts as an insulation media between the air and the cooling coil. The air flowing through the coil is not reduced in temperature adequately enough to allow the system to cool the building efficiently. Due to the inadequate cooling of the air the building is not reaching the required temperature, therefore the compressors will run continuously in order to compensate for the poor temperature transfer. In a system where the air is cooling the building efficiently the compressors will cycle in and out of service as required. Poor heat transfer reflects in poor energy usage. A coil that is maintained and cleaned offers energy savings.
    • Poor indoor Air. Bacteria, mould and fungi that colonise on the cooling coil create endotoxins, mycotoxins and a range of toxic allergenic organic fragments collectively known as macromolecular organic dust(MOD). MOD compromises the quality of the air within the building, leading to a range of chronic health complaints. Some adverse health effects associated with MOD are headaches, eye irritations, blocked sinuses, nausea, respiratory complaints, allergies, fatigue and skin irritations. Coil cleaning offers healthier staff, lower rates of absenteeism, healthier staff offer more productivity and offers mitigation for OH&S requirements.

As you can see the benefits of coil cleaning greatly out weight the cost of cleaning. It is a win win situation with advantages for both staff and building owner.


The Process

ALL DUCT CLEANING SERVICES is an accredited Aeris Guard applicator. All our technicans are trained by Aeris Technologies in the correct methods of Aeris Guard application. We use and recommend the Aeris Guard product range. Aeris Guard's performance and longitivity offer the best solution for our customers needs.

  • The air handling unit(AHU), which houses the cooling coil, is cleaned of debris using specalised dust extraction equipment.
  • The internal insulation of the air handling unit is inspected and repaired as necessary.
  • The condensate tray is checked for integrity and the condesate drain checked for blockages.
  • The evaporator coil fins are then checked for damage and repaired as required.
  • The AHU internal surfaces are clean using Surface Cleaning Solution. The internal surfaces are then treated with a Bioactive surface treatment, which prevents the growth of bacteria, mould and fungi for up to 12 months.
  • The evaporator coil is then cleaned in situ using an enzyme based cleaning product. This cleaner strips away existing bacteria, fungi, other contaminates and removes any pre-existing coatings, ensuring a clean surface for the coil treatment. The cleaning solution is non-corrosive and completely biodegradable.

Please note: The use of any corrosive type cleaner on the coils will eat away at the coil fins and tubing, thus reducing the life of you evaporator coil.

  • The coil treatment is applied in situ to the cooling soils. The treatment leaves a thin coating on the coil surface. The treatment is formulated to release a small amount of the active biocides over a period of at least 12 months.

This simple, yet highly effective maintenance will improve your energy usage, life of plant and indoor air quality.

 

 
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