Since the interior plumbings of central air-conditioning are intricately intertwined, , large areas inside might be contaminated provided that there is no thorough cleaning for a long time. Though central air-conditioning can only be contaminated by a few pollutants, the pollutants involved in its complex structure would be extremely harmful for its ventiduct, main engine, water system and terminal unit. Consequently those damaged air-conditioning equipment will destroy the living environment for human beings.
Techniques for cleaning central air-conditioning as follows:
1. Technical arrangement for the cleaning system
The cleaning system is specifically designed in accordance with the features of central air-conditioning. With the cleaning system, the cleaning agent was directly injected into the water system and played the role of a medium for heat and cooling transfer under the simulation techniques, so as to fulfill the cleaning purpose.
2. Techniques for cleaning various dirt
A. Requirements for confecting cleaning agent and passivating prefilming agent:
Equipped with high clearance ability, appropriate compatibility is safe, reliable and effective to remove water scale, rust, aerugo, oil contamination, bacillus-algae, welding slag, sediment, etc, without damaging equipment and pipes.
B. Requirements for cleaning techniques:
a. Controlling the temperature for cleaning
b. Controlling the concentration
c. Scientific cleaning operation process
C. Analyzing and controlling projects during cleaning
a. Monitoring during cleaning
b. Monitoring at the end of the Cleaning
c. Monitoring for Corrosion
After cleaning the central air-conditioning, in accordance with cleaning techniques, water treatment chemicals are put into the cooling water system and freezing water system respectively to slow down the scaling and form an anti-corrosion coating on the metal surface. Meanwhile, our company will provide advanced techniques for water treatment as well.
1.Air-conditioning system examination
Before and after cleaning, we observe and video contamination inside ventiduct by monitoring equipment, and store photos for checking.
2.Indoor air quality testing
We examine air-conditioning system and check the hygiene status inside according to the national examination standards.
3.Ventiduct cleaning
In strict accordance with GB19210-2003Cleaning standards on air-conditioning ventilation systemand NADCA standards set by the National Air-conditioning Cleaning Association of the US, we adopt pneumatic rotary hairbrush in various sizes and materials to clean the pollutants inside air-conditioning system and finish depollution through efficient vacuum cleaner.
4.Ventiduct disinfection and purification
We apply sanitizer specially designed for air-conditioning and deodorant to disinfect and purify the whole ventiduct, after removing dirt.
5.Site Cleaning
With the completion of the cleaning work, we collect all the cleaning-related tapes and rubbish that remain in site, avoiding affecting our clients’ daily work.
6.Service Follow-up
Examination on air-conditioning ventiduct and measurement on indoor air pollutants provides real data and information for management to evaluate and improve indoor air quality, thus putting forward effective suggestions.
