Glossary

Freon

Simply put, freon is used to cool warm air. Freon itself is a chlorofluorocarbon (CFC) and because of this it is being phased out of use in air conditioners. It cools the air through the HVAC unit’s compressor and system of coil by compressing R-22 gas until it is hot; at which point it moves …

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Evaporator Coil

Your air conditioner’s evaporator coil is a pivotal component of your HVAC system. In fact, it is the evaporator coil’s job to absorb warm air and transfer it into the cold air we need in during summer in Phoenix. Your HVAC evaporator coil is sometimes referred to as the evaporator core and it often is …

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Relay Switch

Your air conditioner’s relay is merely a switch that turns your HVAC equipment on and off. The reason why we need a relay switch with your air conditioner is that the thermostat operates on 24-volt power and it needs a mechanism to translate an open and close circuit to a higher voltage piece of equipment. …

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Energy Star®

Energy Star® is an EPA program that focuses on energy efficiency – save money and protect the environment. It was introduced in 1992 and its goal is to promote the efficient energy use of everyday appliances in homes and businesses. Energy Star® has made a ton of accomplishments over the past several decades, including 85 …

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Ductwork

Ductwork, sometimes spelled duct work, is the system of ducts that run throughout your home or business that deliver cold air via your air conditioner. Split system air conditioners also have ductwork that returns air back to the A/C or heating unit. This helps complete the circulation of air throughout your home. It is important …

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Dual-Fuel Pump

In colder climates it is typical to see heat pumps with duel-fuel as opposed to heat pumps usually used in central Arizona. A duel-fuel pump cost about 25 percent more than a standard one due to it being more versatile for climates that go from freezing to hot. In the summer months, a duel-fuel pump …

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Dry-Charged Unit

In the past several years, air conditioning manufacturers have begun building heat pumps and A/C units that don’t have refrigerant added. These units are often referred to as “dry-charged units.” Air conditioners that are dry-charged can legally be sold throughout the United States, even though they are equipped to be used with older, R22 refrigerant …

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Condenser

An air conditioner’s condenser is designed to take warm air from outside and cool it before delivering it to you via air ducts. There are many different types of condensers, but perhaps the most common one we tend to see in Arizona is an air cooled one. These units are stored outdoors and typically are …

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Condensation Drain Pan

The condensation drain is an important aspect of your air conditioning unit as it is designed to capture moisture that is created by condensation. The drain pan’s mission in life is to keep the water from leaking and damaging other parts of your home. Because of this reasoning, it’s important to keep the drain and …

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Condensation Drain

You HVAC unit’s condensation drain is more or less exactly what it sounds like. Its job is to remove excess water that is created through steam condensation. It’s important that steam production is reduced in order to avoid water knocking in pipes. Condensation should be removed without allowing steam to escape.