Профессиональное развитие будущих инженеров-строителей средствами иностранного языка: Лексический практикум по английскому языку. Трубникова Н.В. - 105 стр.

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Air conditioning filter
The air conditioning filter is one of the most important air conditioning
parts in the air conditioning system. Without it, your air conditioning sys-
tem would be dirty and the air you breathe would be filled with pollutants.
All air conditioning parts, from the ductwork to the air conditioning refrigerant,
need the air conditioning filter to be clean and replaced to ensure you're getting
the very best in central air conditioning. If an air conditioning filter is left dirty,
over time, it can lead to higher energy costs and short equipment life due to all
the air conditioning parts relying on each other. One can not work without the
other. Overall, your heating and cooling will not be as effective and you will
need to invest in more air conditioning repair and air conditioning maintenance.
An air conditioning filter should be changed every month or every two
months for home air conditioning systems and every couple of weeks for cer-
tain commercial or industrial air conditioning since it's running almost 24 hours
a day, 7 days a week. Doing this as a routine in your monthly chores and not
waiting until you see dust matted on the air conditioning filter will ensure you
and your family the very best health as well as a smooth running air condition-
ing system. Dust particles can not always be seen so even if you see a little dust
on the air filter, clean it as you normally would.
Since there are a variety of air conditioning filters, how quickly one gets
blocked versus another depends on the brand - most air conditioning filters are
sized 1 ½ to 2 square feet for each ton of capacity for a home or commercial
property.
You can judge a filter's ability to clean by using MERV ratings - Mini-
mum Efficiency Reporting Value - which is a rating of how efficient an air
conditioning filter is from 1-12. The higher the rating, the more effective it is at
removing particles such as animal dander, pollen, dust, mold and other aller-
gens, and the better the protection for your air conditioning equipment .
Most air conditioning filters screen out particles measuring from 3 to 10 mi-
crons in size.
The common types of air conditioning filters are:
Conventional fiberglass disposable filters (1" and 2"): These
are common in most homes and small industrial air condition-
ers and commercial air conditioning systems. Since they are disposable