The Air Handling Unit (AHU) is a machine with modular sections, each intended for a different function. It generally includes three heat exchange coils (preheating, cooling, and postheating), a humidification section, air flow rate control dampers, filters of different types and efficiencies, return and supply air fans; it can also house heat recovery units, mixing chambers, and silencers.
In the winter season it provides for increasing air temperature and humidity through the succession of preheating, humidification and post heating. In the summer season it provides for decreasing air temperature and humidity through the succession of cooling and post heating.
It starts with opening the inspection doors and everything necessary to have the heat exchange coils and the droplet separator in view from the air handling machine. Next comes the production of pre-cleaning photographic material and the emptying of the humidification tank (if present). Next, existing dirt and lime deposits are removed using a certified chemical. This is followed by final rinsing using a broad-spectrum surgical medical device disinfectant product. Finally, swabbing within the AHU is carried out again, and postoperative photographic material is produced.
Sanitizing the air handling unit: how to do it
Treatment and operations addressed to a complex air handling plant, and for areas as large as the machines and appliances that make up the same plant, involve the joint use of specific disinfection equipment, as well as peculiar and safe chemicals for the removal of dirt and bacteria lurking inside the machines.
In addition to the eventual replacement and disposal of filters, the washing of all internal parts of the machine and batteries, the detection of rusty parts and their treatment is planned, concluding with all sanitization and disinfection operations using specific products capable of eliminating, in maximum safety, all forms of bacteria.
Before proceeding with actual air duct cleaning, an inspection is necessary to ascertain the condition of the ducts, to carry out a microbiological analysis of the dust and to detect any microorganisms dangerous to humans. Of course, the same rules apply to air conditioning duct cleaning.
Then, a technical report is prepared showing the results obtained from the investigations conducted during the inspection phase, and the project for cleaning, sanitizing and remediation of the aeraulic ducts is drawn up.
Air duct cleaning is carried out by means of robotic rotating brushes, which allow the removal of dust and sediment. The work can be assisted by the use of compressed air jets and the use of HEPA-filtered vacuum cleaners that also suck up fine dust and asbestos.
Air duct sanitization
Cleaning and sanitizing aeraulic ducts represent an important aspect of our health. The World Health Organization, in fact, at the conclusion of a series of studies carried out over the past two decades by researchers around the world, has counted insufficiently sanitized air conditioning systems among the causes of the abnormal increase in more or less severe allergic diseases.
Periodic maintenance and replacement of filters in air handling units is by no means sufficient to ensure the healthiness of the air we breathe, because the dust that accumulates over time in air ducts constitutes ideal breeding grounds for the development of bacterial colonies, molds and fungi.
Video inspections
If you have a sewer or plumbing problem but don’t know where to dig, it can be a frustrating situation. Now there’s a quick and easy solution. Video pipe inspection is a locating tool that efficiently probes for leaks, cracks, and blockages.
Video inspection, also known by the term television inspection, is the technique by which the inside of pipes and ducts can be viewed with the aim of checking their actual condition. It is mainly used to detect and locate any structural problems in the pipelines with extreme precision.
Video inspection operations
Video inspection operations can be used to carry out different types of investigations on pipes and ducts of all types, cavities in general, cavities, attics, flues, ducts and conduits for ventilation and air distribution, etc.
- Sewer video inspections
- Pipe video inspections
- Sewer purging
- Self-purging
- Video chimney inspections
- Hydraulic video inspection Professional television inspection
Video inspections with radio-controlled robot probe
During inspection of larger and longer pipes and ducts or crawl spaces under floors or behind walls, video inspection with radio-controlled robots may find particular use.
Basically, by installing on a robot a probe equipped with a high-tech, high visual resolution rotating camera with inclinometer and localization system, it is possible to advance the device autonomously inside the pipes or cavity, so as to verify and document the condition of the pipes, in addition to the surface localization.
