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HVAC Repair: Different types of Units and Associated Problems

By Karrin Garnia Subscribe to RSS | February 28th 2012 | Views:

HVAC system is the most expensive system of the homes and is supposed to be the biggest appliance investment for the people. It is the system that remains active throughout the year for heating as well as cooling purpose. It is specially designed to provide warm air and winter and cool air in summer and provide fresh air through its ventilation system to breath throughout the year long. All these features make it a perfect system of comfort. These three features combine into one unit for heating or cooling down your home.

In practical terms, HVAC is a sophisticated and technologically updated system that works on the principle of heating and cooling the environment air. It works by air (cool, warm, or dehumidified) passing through its pipes called ducts to circulate in the rooms. It is an essential and integral part of home that keeps it functional and efficient throughout. Its small repair and maintenance cost is high this is the reason, it is necessary to keep it sound all year long.

Different Types of Systems

There are different types of HVAC systems. One is called "split system," in which the condenser is firmly placed outside and the evaporator coil is placed inside. They directly transfer heat from inside to outside when the heater is on, and substantially transfer cool air from inside to outside. To create heat, liquid refrigerant is needed.

The other type is called "packaged," and it has the same condenser and evaporator coil units. The only noticeable difference is that these are put together to comprise in one unit only, which is placed outside. The cooling/heating process is same as that of split system. People choose these systems as per their family needs.


Irrespective of the system, they have their own problems. If your unit is not working properly, it may be a symptom of ill condition if the unit. It simply means it needs urgent repairs. The possible conditions that may arise are:

• Air filters being faulty

• Poor installation

• Ducts need replacement

• Old and inefficient condenser

• Evaporator coil needs repair or even replacement

• Blower wheel and/or motor needs repair or replacement

Preventative Maintenance

Preventative maintenance is necessary to keep the system in running condition. Professional HVAC specialists inspect the overall system and perform cleaning and repairing task. They also catch potential problems before they become highly expensive repairs. They clean the ducts; check the refrigerant pressure and levels; compressor, expansion valve or metering device, evaporator coil and blower, chemical refrigerant, check the air quality, as well as provide other valuable services.

Karrin Garnia - About Author:
Metro Energy Savers provides air conditioning and heating services for the Dallas-Fort Worth area. Founded in 1987, our main goal is customer satisfaction, and our 24/7 emergency service reflects that. From installation, repair, maintenance, and inspection, our heating and cooling company can assist you with all your HVAC needs today.

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