When
we’re building a business or a home, the area absolutely must have air
conditioning for creature comfort. When a building is designed, the air
conditioning system must be established based on the volume of the building and
the desires for conditioning the air.
How an Air
Conditioner Works
A fan moves warm
air from the room over coils filled with refrigerant. That refrigerant is
designed to convert from a liquid to a gas under low pressure, and when it does
it absorbs the heat which is then moved outside, passing through condenser
coils. Then the gas returns to a liquid state and the process begins again.
In a window unit,
this process is simple. It is somewhat more complex in a central air
conditioning installation. The installation of a central air conditioning
system requires a system of duct work to funnel air through the coils. A central
air system also requires distributive hardware.
The degree of
cooling by the air conditioning unit is controlled by a thermostat, located on
the unit itself (in the case of a window unit), or centrally located within the
home, often as a dual unit in conjunction with a heating system in a whole
house unit. The window unit, of course, sits in a window and is exposed to both
the indoors and outdoors. The central unit will always be outside, with air
moving through pipes and duct work by devices known as air handlers. With single
homes and small business buildings, the units may be placed on the ground
outside the building. For larger buildings such as apartments, warehouses,
condominiums, factories and other businesses, the unit may be positioned on a
roof.
The units have
the ability to filter airborne particulates as the unit operates. It also
functions as a dehumidifier, which works like this: when the temperature of the
humid air is reduced, a certain amount of moisture is released. This water must
then be conducted away from the compressor unit.
The Major Parts of
an Air Conditioner
In
the simplest of terms, the mechanism of an air conditioner manages the airflow
and the internally sealed refrigerant. These are the components:
·
The
Evaporator receives the refrigerant in a liquid state.
·
The
Condenser performs a transfer of the heat.
·
An
Expansion Valve controls the flow of refrigerant.
·
A
Compressor pump returns pressure to the refrigerant.
·
Two
fans are a part of the unit—one to vent the hot air to the outdoors and one to
blow air over the chilled coils.
There are
variations on these of course. Some air conditioner repair are split systems, with
part inside and part outside. Some are chilled water or cooling tower units.
If
you need repair to your system, we provide Morton Grove AC Service.
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