The most common central cooling system is a split system, which includes an outdoor cabinet containing a condenser coil and compressor, and an indoor evaporator coil, usually installed in conjunction with your  or . The compressor pumps a chemical called refrigerant through the system. Once warm air inside your home blows across the indoor evaporator coil, its heat energy transfers to the refrigerant inside the coil. That transfer, in turn, “cools” the air. The refrigerant is pumped back to the compressor where the cycle begins again. by the refrigerant is moved outside your home while cooled air isMoisture that contributes to humidity is also condensed out of the air. Your cooling system is usually combined with your central heating system because they share the same ductwork for distributing conditioned air throughout your home. Central heating systems have a primary heating appliance, such as a furnace, typically located in your basement or garage.

consist of four main components: 1) burners that deliver and burn fuel, 2) heat exchangers, 3) a blower and 4) a flue that acts as an exhaust for gaseous by-products. Depending on your situation, region and needs, you can choose from heating systems running on either gas or oil as fuel, or a hybrid packaged system that can use both fuel types. Combustion gases are generated by the burners in your furnace and passed through a heat exchanger. Air from your home blows across the heat exchanger to be warmed. It is then blown through a system of ducts to distribute around your home. During warm seasons your heating system works with your central air conditioning. Air is cooled as it’s blown over your air conditioning unit’s cooling coil, often attached to the air circulating fan of the furnace, and then sent through the same air ducts throughout your home. Your local  can help you decide which central cooling and heating system is right for you.

matched systems can be customized with cooling and heating units that match your situation and let you choose from a range of energy efficiency.A short overview on geothermal heating and cooling. Learn about geothermal's advantage over ordinary furnaces and air conditioners.good ac unit brands Geothermal Heating and Coolingbest home ac units 2012 No matter what climate you live in, the temperature throughout the year varies. ac units for manufactured homesFor some climates that means blazing summers that cool to frigid winters. What many people don't realize is that the temperature below ground (regardless of climate or season) stays fairly consistent all year. The ground is able to maintain a higher rate of temperature consistency because it absorbs 47% of the suns energy (heat) as it hits the Earth's surface.

WaterFurnace geothermal systems are able to tap into this free energy with an earth loop. This technology is then used to provide your home or office with central heating and cooling. During the heating cycle, a WaterFurnace geothermal heat pump uses the earth loop to extract heat from the ground. As the system pulls heat from the loop it distributes it through a conventional duct system as warm air. The same heat energy can also be used for a radiant floor system or domestic hot water heating. In the cooling mode, the heating process is reversed - creating cool, conditioned air throughout the home. Instead of extracting heat from the ground, heat is extracted from the air in your home and either moved back into the earth loop, or used to preheat the water in your hot water tank. Geothermal vs. Geoexchange: what's in a name? Geothermal energy has been used to heat and air condition buildings for several decades, and during that time these geothermal systems have been called many different things.

Some of the more popular variations include geo-thermal, geoexchange, ground-water, ground-water assisted, ground-water-source, water-to-water, and even our company name, water furnace heating and cooling. The most popular hydro-fluorocarbon (HFC) refrigerants for new commercial air conditioning systems include R-410A, R-407C and R-134a.  As a facility manager or owner, it’s important that you understand these different refrigerants so that you can make informed decisions for your facility’s air conditioning system. Outlined below are the main differences between HFC refrigerants and additional context on why having the right refrigerant matters. Often referred to by a brand name, such as Freon® By 2015, the use of R-22 must be discontinued across the board R-22 is a hydro-chlorofluorocarbon (HCFC) that contributes to ozone depletion Often referred to by a brand name such as Puron®, Suva® 9100, or Genetron® AZ-20® Has been approved for use in new systems

It is a hydro-fluorocarbon (HFC) that does not contribute to ozone depletion R-410A operating pressures are more than 50% higher than R-22 and R-410A systems require components capable of working at these higher pressures R-410A is the most common refrigerant for new light commercial unitary air conditioning systems Often referred to by a brand name such as Suva® 407C or Genetron® 407C R-407C is a hydro-fluorocarbon (HFC) that does not contribute to ozone depletion Of the higher temperature HFC options, R-407C most closely matches the operating characteristics of R-22 It is a high-glide refrigerant with lower efficiency, but provides the simplest conversion from R-22 due to its similar pressures Widely used in many air conditioning and refrigeration systems globally It is a hydro-fluorocarbon (HFC) that does not contribute to ozone depletion; also the first non-ozone-depleting fluorocarbon refrigerant to be commercialized It is a single-component refrigerant with no glide, featured in many large commercial screw chillers

Emerson Climate Technologies and other industry partners have identified R-410A as an excellent long-term solution for residential and light commercial air-conditioning, due to its combination of high-efficiency performance and direct GWP value, which is close to that of R-22. System manufacturers have had great success with R-410A because of its energy efficient properties and ease of use in their systems.  In addition, components are now widely available for designing efficient R-410A systems.Because R-410A can absorb and release more heat than R-22, an air conditioning compressor can run at a cooler temperature, reducing the risk of compressor burnout due to overheating.If someone were to put R-410A refrigerant into a system designed for R-22, the pressure would be too much and the unit would break.R-22 air conditioners use mineral oil and R-410A systems use Polyol Ester oil (POE).  POE oil is generally more soluble with R-410A than mineral oil is with R-22. This means the R-410A system operates more efficiently, reducing wear and tear on the compressor.

In addition, temperature glide is a property of some HFC refrigerant blends or mixtures and is generally undesirable.  Because the composition alters during a phase change, there is a slight change in evaporating and condensing temperature at constant pressure.  Commercial air conditioning systems that use higher glide refrigerants are usually designed to work around the problems associated with glide, with little or no effect on system performance. Some states and local utilities offer tax incentives or rebates for buildings and systems that meet green codes.  The most popular rating system, LEED, was developed by the U.S. Green Building Council in conjunction with the Department of Energy, Environmental Protection Agency, and many state organizations.  The sustainable design goals of the LEED program include many economic benefits for facility managers and building owners.  Climate control systems play a big part in LEED design. Efficient and environmentally-friendly equipment not only score LEED points, but can also earn rebates and have a quick payback period.