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When a coil becomes fouled with dirt and grime, it cannot provide adequate or designed heat transfer causing higher discharge pressures. the higher discharge pressure requires more electricity and in return increases the costs for operating the equipment. the energy consumption of equipment operating with dirty coils can be as much as 37% more than that used by equipment with clean coils. For example, a typical 5 ton air condition system operating for an average cooling season of 2,500 hour with clean coils will cost approximately $1,650 to operate. However, when the coils become dirty, the six-month cost could escalate to $2, 268... an increase of $618! A typical 4 ton residential unit would realize a saving between $425-500 if the system is maintained yearly. DIRTY INDOOR COILS AFFECT AIR QUALITY The evaporator, or inside coil, presents major concerns that include, and go beyond, the issues already discussed. A fouled and dirty evaporator coil creates a breeding ground for bacteria that can impact the indoor air quality (IAQ). You can significantly improve the quality of your air by having a UV light installed at your air handler. It constantly purifies your air, killing 99.9% of the food source for bacteria and mildew. There are also several air filter upgrades to choose from. Our associates will be happy to help you choose the options that are best suited for your needs. DIRTY COILS SHORTEN EQUIPMENT LIFE Higher operating pressure caused by dirty coils can reduce the equipment's life expectancy. The elevated system pressure and temperature can lead to the breakdown of the compressor's lubricant. In addition, acid formation can occur, leading to an acid burnout. Lubricant breakdown and acid formation will seriously compromise the compressor and ultimately lead to equipment failure. Compressor failure means NO COOLING. DIRTY COILS REDUCE COOLING As the dirt and grime collect on the coils it restricts heat transfer causing the compressor to work harder. This adds more heat to the system and raises the head pressure as much as 75%. Higher head pressure can result in a loss of up to 30% of the system's cooling capacity. This loss will be most noticeable on the HOTTEST DAYS when cooling is needed the most! It is recommenced that you have your air conditioning/heating system maintained annually to keep it running at its peak performance.
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